CN111497621A - Trolley bus deconcentrator control circuit, control system and working method thereof - Google Patents
Trolley bus deconcentrator control circuit, control system and working method thereof Download PDFInfo
- Publication number
- CN111497621A CN111497621A CN202010367724.5A CN202010367724A CN111497621A CN 111497621 A CN111497621 A CN 111497621A CN 202010367724 A CN202010367724 A CN 202010367724A CN 111497621 A CN111497621 A CN 111497621A
- Authority
- CN
- China
- Prior art keywords
- control
- trolley bus
- deconcentrator
- voltage
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000001514 detection method Methods 0.000 claims description 12
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000011017 operating method Methods 0.000 claims 1
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000032683 aging Effects 0.000 description 2
- 238000010891 electric arc Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/53—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells in combination with an external power supply, e.g. from overhead contact lines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a control circuit of a branching device of a trolley bus, a control system and a working method thereof, wherein a first control branch and a second control branch are arranged in the control circuit of the branching device of the trolley bus, the first control branch comprises a high-voltage pre-charging circuit, a first IGBT element and a current-limiting circuit which are sequentially connected in series from the anode of a high-voltage network, the second control branch comprises an on-off control element for controlling the on-off of the first control branch and the second control branch, the first control branch and the second control branch are both connected to the high-voltage network through a collecting rod of the trolley bus, and as the on-off of contacts of a contactor is carried out under the conditions of no voltage and no current, no arcing and wire changing are carried out, the contact adhesion caused by arcing is greatly reduced, the service life of the control circuit of the branching device of the trolley bus is effectively prolonged, the trolley bus can be separated from the constraint of an overhead power grid, and, the trolley bus can be continuously operated.
Description
Technical Field
The invention relates to the technical field of trolley buses, in particular to a trolley bus deconcentrator control circuit, a control system and a working method thereof.
Background
With the rapid development of new energy industry, the trolley bus becomes a hot choice by virtue of the advantages of energy conservation, environmental protection, comfort and sanitation, but the trolley bus has a fixed running route and needs to be realized by a deconcentrator when the running direction needs to be changed, so the deconcentrator plays a crucial role in the running of the trolley bus, the current control deconcentration control system of the trolley bus depends on a mechanical switch to control the opening of the positive and negative electrodes of a wire net, a contactor is mechanical, although an arc extinguishing cover and other devices are arranged, the contactor is subjected to hard switching action when voltage and current are superposed when attracting and disconnecting, the service life of a mechanical contact is reduced due to the arc effect generated by the current, and the bus is a vehicle running for a long time and can accelerate the aging of the mechanical contact. Traditional trolley-bus separated time control system only has a mechanical control switch, in case the contact ageing produces the adhesion, high voltage electric network can lead to the unusual heat production of current-limiting resistance or even arouse the conflagration on can adding the high pressure to the current-limiting resistance for a long time, will seriously influence the operation safety of public transport trolley-bus.
Disclosure of Invention
In view of the above, the present invention is directed to a trolley bus wire distributor control circuit, which can prolong the service life of a trolley bus wire changing system.
The present invention provides a control circuit for a deconcentrator of a trolley bus, which comprises:
The first control branch circuit is connected with two ends of the positive pole and the negative pole of the external high-voltage wire network, the first control branch circuit comprises a high-voltage pre-charging circuit, a first IGBT element and a current-limiting circuit which are sequentially connected in series from the positive pole of the high-voltage wire network, and the high-voltage pre-charging circuit comprises a contactor;
The second control branch circuit is connected with the first control branch circuit in parallel and connected with the two ends of the positive pole and the negative pole of the external high-voltage wire net and used for outputting electric energy to the high-voltage battery of the trolley bus, and the second control branch circuit comprises an on-off control element for controlling the on-off of the second control branch circuit;
The first control branch and the second control branch are both connected to a high-voltage wire net through a trolley pole of the trolley bus, and when the trolley bus runs to a deconcentrator, the trolley pole is connected with a deconcentrator electromagnetic coil, and the deconcentrator electromagnetic coil is connected into a loop in series;
The coil of the contactor, the grid of the first IGBT element and the on-off control element are connected to an external trolley bus main control unit;
When the trolley bus runs normally, the on-off control element switches on the second control branch, a high-voltage battery of the trolley bus is charged through an external high-voltage wire network, when the trolley bus runs to a deconcentrator, if branching is needed, the on-off control element switches on a deconcentrator electromagnetic coil to perform branching, and if branching is not needed, the on-off control element switches off the second control branch, and the deconcentrator electromagnetic coil does not perform branching;
When branching is needed, if the second control branch circuit fails or the trolley bus does not need to be charged, the contactor is firstly switched on, then the first IGBT element is switched on, and the first control branch circuit is used for electrifying the electromagnetic coil of the branching device to perform branching.
Preferably, a first diode is connected in parallel in reverse between the collector and the emitter of the first IGBT element.
Preferably, the high-voltage pre-charging circuit comprises a contactor contact and a high-voltage pre-charging resistor which are connected in parallel.
Preferably, the current limiting circuit includes a second diode and a current limiting resistor connected in parallel with each other.
Preferably, the on-off control element is a second IGBT element, the second control branch further includes a third diode, a collector of the second IGBT element is connected to an anode of an external high-voltage line network, an emitter of the second IGBT element is connected to a cathode of the high-voltage line network through the third diode after being connected to a cathode of the third diode, the emitter of the second IGBT element is further connected to a high-voltage battery of the trolley bus through an inductor, and a capacitor is connected in parallel between the emitter of the second IGBT element and the anode of the third diode.
The trolley bus deconcentrator control system is characterized by further comprising a main control unit, wherein the main control unit is connected to a coil of a contactor, a grid electrode of a first IGBT element and an on-off control element and is used for controlling on-off of the contactor, the first IGBT element and the on-off control element.
Preferably, the system further comprises a voltage detection module, a current detection module and an alarm module, wherein the voltage detection module and the current detection module are connected to the high-voltage battery of the trolley bus and used for detecting the voltage and the current of the high-voltage battery and sending the measured data to the main control unit through the digital-to-analog conversion module, and when the main control unit detects that the high-voltage battery is abnormal, the alarm module sends out an alarm.
A working method of a trolley bus deconcentrator control system is used for the trolley bus deconcentrator control system and is characterized by comprising the following steps:
When the trolley bus runs normally, the on-off control element switches on the second control branch, a high-voltage battery of the trolley bus is charged through an external high-voltage wire network, when the trolley bus runs to a deconcentrator, if branching is needed, the on-off control element switches on a deconcentrator electromagnetic coil to perform branching, and if branching is not needed, the on-off control element switches off the second control branch, and the deconcentrator electromagnetic coil does not perform branching;
When branching is needed, if the second control branch circuit fails or the trolley bus does not need to be charged, the contactor is firstly switched on, then the first IGBT element is switched on, and the first control branch circuit is used for electrifying the electromagnetic coil of the branching device to perform branching.
Preferably, the main control unit controls the on-off control element to switch on the second control branch, and the charging of the high-voltage battery of the trolley bus through the external high-voltage line network comprises:
When the main control unit detects that the electric quantity of the high-voltage battery of the trolley bus is lower than 60%, the on-off control element is controlled to switch on the second control branch, and the high-voltage battery of the trolley bus is charged through an external high-voltage wire network, so that the electric quantity of the high-voltage battery is maintained between 60% and 85%.
From the above, the trolley bus deconcentrator control circuit, the control system and the working method thereof provided by the invention are characterized in that the first control branch and the second control branch are arranged in the trolley bus deconcentrator control circuit, when the trolley bus normally runs, the on-off control element connects the second control branch, the high-voltage battery of the trolley bus is charged through the external high-voltage network, when the trolley bus runs to the deconcentrator, if the deconcentration is needed, the on-off control element connects the deconcentrator electromagnetic coil for deconcentration, if the deconcentration is not needed, the on-off control element disconnects the second control branch, the deconcentrator electromagnetic coil does not perform the deconcentration, if the second control branch fails or the trolley is not needed to be charged, the contactor is firstly connected, and then the first IGBT element is connected, the first control branch circuit is used for electrifying the electromagnetic coil of the deconcentrator to perform deconcentration, and the contact on-off of the contactor is performed under the conditions of no voltage and no current, so that arc-drawing wire replacement is avoided, contact adhesion caused by arc drawing is greatly reduced, the service life of the control circuit of the deconcentrator of the trolley bus is effectively prolonged, the trolley bus can be separated from the constraint of an overhead power grid, the time for charging a high-voltage battery is saved, and the trolley bus can be continuously operated.
Drawings
FIG. 1 is a schematic diagram of a control circuit according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a control system according to an embodiment of the present invention;
FIG. 3 is a schematic circuit diagram of a high voltage pre-charge resistor according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a control circuit of another connection method according to an embodiment of the present invention;
Fig. 5 is a flowchart illustrating a control method according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.
It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it should be noted that "first" and "second" are merely for convenience of description and should not be construed as limitations of the embodiments of the present invention, and they are not described in any more detail in the following embodiments.
A trolley bus deconcentrator control circuit is shown in figure 1 and comprises a first control branch and a second control branch, wherein the first control branch is connected with the two ends of the positive pole and the negative pole of an external high-voltage wire network, the first control branch comprises a high-voltage pre-charging circuit, a first IGBT element Q1 and a current-limiting circuit which are sequentially connected in series from the positive pole of the high-voltage wire network, and the high-voltage pre-charging circuit comprises a contactor;
The second control branch circuit is connected with the first control branch circuit in parallel, is also connected with the positive and negative ends of an external high-voltage wire network and is used for outputting electric energy to a high-voltage battery of the trolley bus, the second control branch circuit comprises an on-off control element for on-off of a controller, and a coil of the contactor, a grid electrode of the first IGBT element Q1 and the on-off control element are all connected to an external trolley bus main control unit;
The first control branch and the second control branch are both connected to a high-voltage wire net through a trolley pole of the trolley bus, and when the trolley bus runs to a deconcentrator, the trolley pole is connected with a deconcentrator electromagnetic coil, and the deconcentrator electromagnetic coil is connected into a loop in series;
The coil of the contactor, the grid of the first IGBT element and the on-off control element are connected to an external trolley bus main control unit;
When the trolley bus runs normally, the on-off control element switches on the second control branch, a high-voltage battery of the trolley bus is charged through an external high-voltage wire network, when the trolley bus runs to a deconcentrator, if branching is needed, the on-off control element switches on a deconcentrator electromagnetic coil to perform branching, and if branching is not needed, the on-off control element switches off the second control branch, and the deconcentrator electromagnetic coil does not perform branching;
When branching is needed, if the second control branch circuit fails or the trolley bus does not need to be charged, the contactor is firstly switched on, then the first IGBT element is switched on, and the first control branch circuit is enabled to electrify the electromagnetic coil of the branching device to perform branching.
The invention sets the first control branch and the second control branch in the control circuit of the branching device of the trolley bus, when the trolley bus normally runs, the on-off control element connects the second control branch, the high voltage battery of the trolley bus is charged through the external high voltage network, when the trolley bus runs to the branching device, if branching is needed, the on-off control element connects the electromagnetic coil of the branching device, branching is carried out, if branching is not needed, the on-off control element disconnects the second control branch, the electromagnetic coil of the branching device does not branch, if branching is needed, the second control branch is failed, or when the trolley bus is not needed, the contactor is firstly connected, then the first IGBT element is connected, the first control branch is electrified to the electromagnetic coil of the branching device, branching is carried out, because the contact on-off of the contactor is in the condition of no voltage, The trolley bus junction device has the advantages that the contact adhesion caused by arc discharge is greatly reduced due to no arc discharge and wire replacement under the condition of no current, the service life of a trolley bus junction device control circuit is effectively prolonged, the trolley bus can be separated from the constraint of an overhead power grid, the charging time of a high-voltage battery is saved, and the trolley bus can be operated uninterruptedly all the time.
In one embodiment, first diode D1 is connected in parallel in the reverse direction between the collector and the emitter of the first IGBT element, and is capable of protecting first IGBT element Q1 from a high reverse voltage breakdown, thereby functioning to protect first IGBT element Q1.
As an embodiment, as shown in fig. 3, the high-voltage pre-charging circuit includes a contactor contact and a high-voltage pre-charging resistor connected in parallel, and the high-voltage pre-charging resistor is configured to limit the magnitude of the pre-charging current, so as to prevent the first IGBT element Q1 from being damaged by a large charging current generated by a short circuit at the moment of power-up.
In one embodiment, the current limiting circuit includes a second diode D2 and a current limiting resistor connected in parallel, and the redundant voltage division will be applied to the current limiting resistor to protect the second diode D2 and other components from being burned out.
in one embodiment, the on-off control element is a second IGBT element Q2, the second control branch further includes a third diode D3, a collector of the second IGBT element Q2 is connected to an anode of an external high voltage network, an emitter of the second IGBT element Q2 is connected to a cathode of the third diode D3 and is connected to a cathode of the high voltage network through a third diode D3, an emitter of the second IGBT element is further connected to a high voltage battery of the trolley bus through an inductor L1, a capacitor c1 is connected in parallel between the emitter of the second IGBT element Q2 and the anode of the third diode D3, and the second IGBT element Q2 is used as the on-off control element, so that the on-off control element has the advantages of small switching loss and high on-off speed, and plays a role of filtering the charging current by setting the inductor L1.
As an embodiment, as shown in fig. 4, the collector of the second IGBT element Q2 is connected to the rear end of the contact of the contactor, and the on/off of the first control branch and the second control branch can be controlled by the contactor.
As an implementation manner, the trolley bus deconcentrator control circuit disclosed by the invention can work as a part of a trolley bus deconcentrator control system, the system comprises the trolley bus deconcentrator control circuit and further comprises a main control unit, for example, the main control unit can be arranged in a trolley bus, the main control unit is connected to a coil of a contactor, a grid electrode of a first IGBT element and an on-off control element and is used for controlling the on-off of the contactor, the first IGBT element and the on-off control element, and the control manner is not different from the common manner in the prior art.
As an implementation manner, as shown in fig. 2, the system further includes a voltage detection module, a current detection module, and an alarm module, where the voltage detection module and the current detection module are connected to the high-voltage battery of the trolley bus, and are used to detect the voltage and the current of the high-voltage battery, and send the measured data to the main control unit through the digital-to-analog conversion module, and when the main control unit detects that the high-voltage battery is abnormal, the alarm module sends an alarm.
The driver of the trolley bus can know the state of the trolley bus at a glance, and the safety performance is improved.
The invention also provides a working method of the trolley bus deconcentrator control system, as shown in fig. 5, comprising the following steps:
S501, when the trolley bus runs normally, the on-off control element switches on the second control branch, a high-voltage battery of the trolley bus is charged through an external high-voltage wire network, when the trolley bus runs to a deconcentrator, if branching is needed, the on-off control element switches on a deconcentrator electromagnetic coil to perform branching, and if branching is not needed, the on-off control element switches off the second control branch, and the deconcentrator electromagnetic coil does not perform branching;
When the branching is needed, if the second control branch fails or the trolley bus does not need to be charged, the contactor is firstly switched on, then the first IGBT element is switched on, and the first control branch is enabled to electrify the electromagnetic coil of the branching device to perform branching.
For example, if the battery capacity of the trolley bus exceeds 85%, the electromagnetic coil of the deconcentrator can be controlled through the second control branch to prevent overcharging.
As an embodiment, the main control unit controls the on-off control element to switch on the second control branch, and the charging of the high-voltage battery of the trolley bus through the external high-voltage line network includes:
And when the main control unit detects that the electric quantity of the high-voltage battery of the trolley bus is lower than 60%, the on-off control element is controlled to switch on the second control branch, and the high-voltage battery of the trolley bus is charged through an external high-voltage wire network, so that the electric quantity of the high-voltage battery is maintained between 60% and 85%.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.
In addition, well known power/ground connections to Integrated Circuit (IC) chips and other components may or may not be shown within the provided figures for simplicity of illustration and discussion, and so as not to obscure the invention. Furthermore, devices may be shown in block diagram form in order to avoid obscuring the invention, and also in view of the fact that specifics with respect to implementation of such block diagram devices are highly dependent upon the platform within which the present invention is to be implemented (i.e., specifics should be well within purview of one skilled in the art). Where specific details (e.g., circuits) are set forth in order to describe example embodiments of the invention, it should be apparent to one skilled in the art that the invention can be practiced without, or with variation of, these specific details. Accordingly, the description is to be regarded as illustrative instead of restrictive.
The embodiments of the invention are intended to embrace all such alternatives, modifications and variances that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements and the like that may be made without departing from the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (9)
1. A trolley bus deconcentrator control circuit is characterized by comprising:
The first control branch circuit is connected with two ends of the positive pole and the negative pole of the external high-voltage wire network, and comprises a high-voltage pre-charging circuit, a first IGBT element and a current-limiting circuit which are sequentially connected in series from the positive pole of the high-voltage wire network, wherein the high-voltage pre-charging circuit comprises a contactor;
The second control branch circuit is connected with the first control branch circuit in parallel and connected with the positive and negative ends of an external high-voltage wire net and used for outputting electric energy to a high-voltage battery of the trolley bus, and the second control branch circuit comprises an on-off control element for controlling the on-off of the second control branch circuit;
The first control branch and the second control branch are both connected to a high-voltage wire net through a trolley pole of the trolley bus, and when the trolley bus runs to a deconcentrator, the trolley pole is connected with a deconcentrator electromagnetic coil to connect the deconcentrator electromagnetic coil in series into a loop;
The coil of the contactor, the grid of the first IGBT element and the on-off control element are connected to an external trolley bus main control unit;
When the trolley bus runs normally, the on-off control element switches on the second control branch, a high-voltage battery of the trolley bus is charged through an external high-voltage wire network, when the trolley bus runs to a deconcentrator, if branching is needed, the on-off control element switches on a deconcentrator electromagnetic coil to perform branching, and if branching is not needed, the on-off control element switches off the second control branch, and the deconcentrator electromagnetic coil does not perform branching;
When branching is needed, if the second control branch circuit fails or the trolley bus does not need to be charged, the contactor is firstly switched on, then the first IGBT element is switched on, and the first control branch circuit is enabled to electrify the electromagnetic coil of the branching device to perform branching.
2. The trolley bus splitter control circuit as claimed in claim 1, wherein a first diode is connected in parallel in an opposite direction between a collector and an emitter of the first IGBT element.
3. The trolley bus deconcentrator controller circuit of claim 1, wherein the high-voltage pre-charge circuit comprises a contactor contact and a high-voltage pre-charge resistor in parallel.
4. The trolley bus deconcentrator controller circuit of claim 1, wherein the current limiting circuit comprises a second diode and a current limiting resistor connected in parallel with each other.
5. The trolley bus deconcentrator control circuit according to claim 1, wherein the on-off control element is a second IGBT element, the second control branch further comprises a third diode, a collector of the second IGBT element is connected to an anode of an external high voltage network, an emitter of the second IGBT element is connected to a cathode of the high voltage network through the third diode after being connected to a cathode of the third diode, an emitter of the second IGBT element is further connected to a high voltage battery of the trolley bus through an inductor, and a capacitor is connected in parallel between the emitter of the second IGBT element and the anode of the third diode.
6. A trolley bus deconcentrator control system, which comprises the trolley bus deconcentrator control circuit as claimed in any one of claims 1 to 5, and further comprises a main control unit, wherein the main control unit is connected to the coil of the contactor, the grid electrode of the first IGBT element and the on-off control element, and is used for controlling the on-off of the contactor, the first IGBT element and the on-off control element.
7. The trolley bus deconcentrator control system according to claim 6, further comprising a voltage detection module, a current detection module and an alarm module, wherein the voltage detection module and the current detection module are connected to a high-voltage battery of the trolley bus, and are configured to detect a voltage and a current of the high-voltage battery, and send detected data to the main control unit through the digital-to-analog conversion module, and the main control unit sends an alarm through the alarm module when detecting that the high-voltage battery is abnormal.
8. A trolley bus deconcentrator control system operating method for a trolley bus deconcentrator control system according to claim 6 or 7, characterized in that it comprises:
When the trolley bus runs normally, the on-off control element switches on the second control branch, a high-voltage battery of the trolley bus is charged through an external high-voltage wire network, when the trolley bus runs to a deconcentrator, if branching is needed, the on-off control element switches on a deconcentrator electromagnetic coil to perform branching, and if branching is not needed, the on-off control element switches off the second control branch, and the deconcentrator electromagnetic coil does not perform branching;
When branching is needed, if the second control branch circuit fails or the trolley bus does not need to be charged, the contactor is firstly switched on, then the first IGBT element is switched on, and the first control branch circuit is enabled to electrify the electromagnetic coil of the branching device to perform branching.
9. The method of claim 8, wherein the controlling the on-off control element by the main control unit switches on the second control branch, and the charging the high voltage battery of the trolley bus through the external high voltage network comprises:
And when the main control unit detects that the electric quantity of the high-voltage battery of the trolley bus is lower than 60%, the on-off control element is controlled to switch on the second control branch, and the high-voltage battery of the trolley bus is charged through an external high-voltage wire network, so that the electric quantity of the high-voltage battery is maintained between 60% and 85%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010367724.5A CN111497621A (en) | 2020-04-30 | 2020-04-30 | Trolley bus deconcentrator control circuit, control system and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010367724.5A CN111497621A (en) | 2020-04-30 | 2020-04-30 | Trolley bus deconcentrator control circuit, control system and working method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111497621A true CN111497621A (en) | 2020-08-07 |
Family
ID=71866794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010367724.5A Pending CN111497621A (en) | 2020-04-30 | 2020-04-30 | Trolley bus deconcentrator control circuit, control system and working method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111497621A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112319453A (en) * | 2020-12-01 | 2021-02-05 | 杭叉集团股份有限公司 | Fork truck formula AGV and braking system thereof |
| CN116176370A (en) * | 2023-02-16 | 2023-05-30 | 凯博易控车辆科技(苏州)股份有限公司 | Dual-source trolley bus branching system and branching method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2243961A (en) * | 1990-03-09 | 1991-11-13 | Sunleigh Electrical Developmen | DC-DC Power supply circuit |
| CN103441540A (en) * | 2013-08-12 | 2013-12-11 | 西安睿诺新能源有限公司 | Vehicle-mounted storage battery set charger circuit based on chopped waves |
| CN203557965U (en) * | 2013-12-05 | 2014-04-23 | 中国重汽集团济南动力有限公司 | Control system of double-source electric trolley bus |
| CN207651424U (en) * | 2017-11-17 | 2018-07-24 | 北汽福田汽车股份有限公司 | Contactor control device and vehicle |
| CN109347189A (en) * | 2015-12-04 | 2019-02-15 | 郑州宇通客车股份有限公司 | A trolleybus power supply system and its power supply control method |
| CN110014866A (en) * | 2017-09-04 | 2019-07-16 | 郑州宇通客车股份有限公司 | Double source trolleybus and its network segment switching charge control system and control method |
| EP3224927B1 (en) * | 2014-11-28 | 2019-08-28 | Hitachi Rail Italy S.p.A. | Auxiliary system of power supply and energy harvesting for an electric vehicle, and method for operating the auxiliary system of power supply and energy harvesting |
| CN110745006A (en) * | 2018-07-20 | 2020-02-04 | 郑州宇通客车股份有限公司 | Automatic branching control method and device for trolley bus |
-
2020
- 2020-04-30 CN CN202010367724.5A patent/CN111497621A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2243961A (en) * | 1990-03-09 | 1991-11-13 | Sunleigh Electrical Developmen | DC-DC Power supply circuit |
| CN103441540A (en) * | 2013-08-12 | 2013-12-11 | 西安睿诺新能源有限公司 | Vehicle-mounted storage battery set charger circuit based on chopped waves |
| CN203557965U (en) * | 2013-12-05 | 2014-04-23 | 中国重汽集团济南动力有限公司 | Control system of double-source electric trolley bus |
| EP3224927B1 (en) * | 2014-11-28 | 2019-08-28 | Hitachi Rail Italy S.p.A. | Auxiliary system of power supply and energy harvesting for an electric vehicle, and method for operating the auxiliary system of power supply and energy harvesting |
| CN109347189A (en) * | 2015-12-04 | 2019-02-15 | 郑州宇通客车股份有限公司 | A trolleybus power supply system and its power supply control method |
| CN110014866A (en) * | 2017-09-04 | 2019-07-16 | 郑州宇通客车股份有限公司 | Double source trolleybus and its network segment switching charge control system and control method |
| CN207651424U (en) * | 2017-11-17 | 2018-07-24 | 北汽福田汽车股份有限公司 | Contactor control device and vehicle |
| CN110745006A (en) * | 2018-07-20 | 2020-02-04 | 郑州宇通客车股份有限公司 | Automatic branching control method and device for trolley bus |
Non-Patent Citations (1)
| Title |
|---|
| 袁建新: "无轨电车分线器智能换向系统研究", 《景德镇学院学报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112319453A (en) * | 2020-12-01 | 2021-02-05 | 杭叉集团股份有限公司 | Fork truck formula AGV and braking system thereof |
| CN112319453B (en) * | 2020-12-01 | 2025-11-21 | 杭叉集团股份有限公司 | Fork truck formula AGV and braking system thereof |
| CN116176370A (en) * | 2023-02-16 | 2023-05-30 | 凯博易控车辆科技(苏州)股份有限公司 | Dual-source trolley bus branching system and branching method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11677232B2 (en) | Quick battery disconnect system for high current circuits | |
| EP3687025B1 (en) | Pre-charging circuit and pre-charging method for high voltage battery pack | |
| EP3872944A1 (en) | Direct current energy dissipation apparatus and control method therefor | |
| KR101653847B1 (en) | High-speed circuit breaker for a high-performance battery in an isolated direct current network | |
| CN106451610B (en) | Energy storage battery cluster control system and control method thereof | |
| CN106030951B (en) | Battery system and method for operating such a battery system | |
| KR101616249B1 (en) | More readily available traction battery | |
| CN102067421B (en) | A power apparatus for a high voltage electrical power system | |
| CN113875111B (en) | A breaking device and inverter system | |
| CN112865502B (en) | Automatic closing bypass protection device of series power module and control method | |
| CN107791844A (en) | The method that current interrupt device, battery system, controller and separation pass through electric current | |
| US9472941B2 (en) | Battery module | |
| CN103646805B (en) | A kind of direct-current breaker topology | |
| CN102369644A (en) | Control circuit for preventing battery group from being reversely connected and power supply system for base station | |
| CN109066829A (en) | A kind of battery group open-circuit fault recombination discharge system and battery | |
| CN103427492B (en) | For the energy on delivery vehicle or storage device and it is used in particular for the power circuit of ultracapacitor storage unit | |
| KR20210047735A (en) | DC Short Circuit System for Low Voltage DC equipment | |
| AU2019341286B2 (en) | Arc-extinguishing circuit and apparatus | |
| JP2016134962A (en) | Power storage system | |
| CN111497621A (en) | Trolley bus deconcentrator control circuit, control system and working method thereof | |
| CN109787327A (en) | A kind of lithium ionic cell module management circuit | |
| CN206117211U (en) | Energy storage battery bunch control system | |
| CN212195108U (en) | Trolley bus deconcentrator control circuit | |
| US12476482B2 (en) | Excitation fuse device and UPS battery circuit | |
| CN211223110U (en) | Ground power supply device for electric vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200807 |
|
| RJ01 | Rejection of invention patent application after publication |