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WO2019038601A1 - Disjoncteur à harmoniques intelligent - Google Patents

Disjoncteur à harmoniques intelligent Download PDF

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Publication number
WO2019038601A1
WO2019038601A1 PCT/IB2018/050406 IB2018050406W WO2019038601A1 WO 2019038601 A1 WO2019038601 A1 WO 2019038601A1 IB 2018050406 W IB2018050406 W IB 2018050406W WO 2019038601 A1 WO2019038601 A1 WO 2019038601A1
Authority
WO
WIPO (PCT)
Prior art keywords
circuit breaker
analytics
real
adc
digital signal
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.)
Ceased
Application number
PCT/IB2018/050406
Other languages
English (en)
Inventor
Shawn Patrick BOLICH
Steven Forrest HADLEY
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2019038601A1 publication Critical patent/WO2019038601A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/123—Automatic release mechanisms with or without manual release using a solid-state trip unit
    • H01H71/125—Automatic release mechanisms with or without manual release using a solid-state trip unit characterised by sensing elements, e.g. current transformers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/03—Application domotique, e.g. for house automation, bus connected switches, sensors, loads or intelligent wiring
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/14—Protecting elements, switches, relays or circuit breakers

Definitions

  • PCT Patent Cooperation Treaty
  • the present invention relates generally to a circuit breaker monitor. More specifically, the present invention relates to a thermal-magnetic circuit breaker with a plurality of sensors that can detect various data points and wirelessly transmit the data points to an interface medium.
  • a circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by excess current, which typically results from an overload or short circuit.
  • the basic function of the circuit breaker is to interrupt current flow after a fault is detected in a system. Unlike a fuse, which operates once and then must be replaced, a circuit breaker can be reset, either manually or automatically, to resume normal operation.
  • Thermal-magnetic circuit breakers incorporate both techniques with the electromagnet responding instantaneously to large surges in current and the bimetallic strip responding to less extreme but longer-term over-current conditions.
  • the thermal portion of the circuit breaker provides a time response feature that trips the circuit breaker sooner for larger over currents while allowing smaller overloads to persist for a longer time.
  • the thermal-magnetic circuit breakers can be used for motors within large factories for assembly lines and conveyor belts. A facility manager may want to know how a factory building or industrial plant is using energy on a more granular level.
  • a circuit breaker can automatically control the power in a system when something trips the circuit.
  • many circuit breakers are unable to express the information of how or why the circuit has overloaded or shorted.
  • Most circuit breakers do not have the functionality to wirelessly transmit particular data points that have been collected to analyze the performance of the system.
  • the present invention is an improved circuit breaker and system that uses a typical circuit breaker to collect necessary data points of the system.
  • the circuit breaker in the present invention performs the basic functionality of a circuit breaker.
  • the circuit breaker can automatically disconnect the power in the case that a fault has been detected such as when the circuit breaker detects the threshold temperature in the system.
  • the circuit breaker can also have a manual disconnect by means of a physical switch.
  • a light emitting diode (LED) displays whether or not the circuit breaker is in operation with power.
  • An objective of the present invention is to provide overcurrent protection, short circuit protection, and ground fault protection, like a typical circuit breaker.
  • the present invention is able to wirelessly transmit the data points to an interface medium that analyzes the data points.
  • the present invention can allow a user to run the facility more efficiently by monitoring the unwanted harmonics in a system. This can help prevent excess energy consumption.
  • the present invention is able to monitor the triplen harmonics, harmonic voltages, harmonic currents and other distortions in the radio frequencies of the circuit breaker.
  • the present invention can detect the magnetic field and any distortions created by the toroidal transformer.
  • the present invention can further collect these data points and send the collected data points to an interference medium that can make the necessary calculations and measurements, similar to the function of an oscilloscope.
  • the present invention translates the data points into readable information such as the electromagnetic interference, inductive reactance, capacitance, triplen harmonics, power factor, and various harmonics.
  • the present invention can wirelessly transmit the collected data points to send real time data. Another object of the present invention is to use the sending of real time data for the purpose of allowing the circuit breaker to react to the collected data instantly.
  • the present invention can further be used to communicate with the system within the scope of Internet of Things (IoT).
  • IoT Internet of Things
  • the present invention enables the ability for various components of the system to communicate by sending and receiving data for the purpose of functioning more efficiently in light of energy consumption and unwanted harmonics.
  • FIG. 1A is a flowchart illustrating the basic overall process of the present invention
  • FIG. IB is a continuation of FIG. 1A, further illustrating the basic overall process of the present invention.
  • FIG. 2 is a flowchart illustrating the basic overall process of the circuit breaker.
  • FIG. 3A is a block diagram illustrating the overall operational flow of the present invention.
  • FIG. 3B is a block diagram illustrating the overall operational flow of the present invention, wherein the plurality of analytics is analyzed via fast fourier transform.
  • FIG. 4 is a block diagram illustrating the overall operational flow of the present invention, wherein the indicator light and the user switch are illustrated.
  • FIG. 5 is a block diagram illustrating the overall operational flow of the present invention, wherein the circuit breaker is a ground fault circuit interrupter (GFCI).
  • GFCI ground fault circuit interrupter
  • FIG. 6 is a block diagram illustrating the overall operational flow of the present invention, wherein the circuit breaker is an arc fault circuit interrupter (AFCI).
  • AFCI arc fault circuit interrupter
  • FIG. 7 is a block diagram illustrating the overall operational flow of the present invention, wherein the plurality of analytics is a plurality of triplen harmonics.
  • FIG. 8 is a block diagram illustrating the overall operational flow of the present invention, wherein the plurality of analytics is a plurality of harmonic voltages.
  • FIG. 9 is a block diagram illustrating the overall operational flow of the present invention, wherein the plurality of analytics is a plurality of harmonic currents.
  • FIG. 10 is an illustration of the circuit breaker of the present invention. DETAIL DESCRIPTIONS OF THE INVENTION
  • the present invention introduces a method that can monitor distortions in an alternating current (AC) system, and transmit the information to a computer system that can provide real time analytics.
  • the present invention monitors over currents, ground faults, and short circuits, and monitors the harmonics received on a neutral line so that the monitored data can be used for installing harmonic filters that result in a cleaner AC sine wave.
  • the present invention is provided with a circuit breaker 1 that comprises a line terminal 13 and a load terminal 14.
  • the present invention is also provided with a power supply 2 that is electrically connected to the circuit breaker 1.
  • the source and the overall power supplied through the power supply 2 can vary in different embodiments of the present invention.
  • the present invention is also provided with an analog to digital converter 3 (ADC) which is electrically connected to a neutral conductor 6 that passes through the circuit breaker 1.
  • ADC analog to digital converter
  • a digital signal processor 4 provided to the present invention is electronically connected to the ADC 3 so that an output from the ADC 3 can be received as an input by the digital signal processor 4.
  • the present invention is further provided with an internal wireless transmitter 5 that is electronically connected to the digital signal processor 4. More specifically, the internal wireless transmitter 5 is used to wirelessly transfer information regarding the distortions in the AC sine wave into a computing device 10. Thus, a user monitoring the computing device 10 can take necessary actions to prevent or minimize harmonics.
  • the present invention monitors the harmonics in the neutral conductor 6.
  • a toroidal transformer 9 is used to measure the harmonics at the neutral conductor 6.
  • any other comparable method can be used to monitor the harmonics at the neutral conductor 6.
  • the present invention initially receives an analog signal from the neutral conductor 6 through the toroidal transformer 9. To be converted into a digital signal, the analog signal is then transmitted to the ADC 3 through a probe 8 of the ADC 3.
  • the analog signal is converted into a digital signal through the ADC 3 and then forwarded to the digital signal processor 4 so that a plurality of analytics related to the sine wave can be generated within the digital signal processor 4.
  • the present invention wirelessly transmits the plurality of analytics to the computing device 10 through the internal wireless transmitter 5. Even though the plurality of analytics is wirelessly transmitted in the preferred embodiment of the present invention, different transmitting methods can be utilized in other embodiments of the present invention.
  • the present invention analyzes the plurality of analytics through the computing device 10 so that a plurality of distortions within the sine wave can be identified.
  • the plurality of analytics can vary in different embodiments of the present invention.
  • the plurality of analytics can differ according to the circuit the present invention is implemented in.
  • the plurality of analytics may include, but is not limited to, a plurality of triplen harmonics, a plurality of harmonic voltages, and a plurality of harmonic currents.
  • fast fourier transform is used to analyze the plurality of analytics.
  • different analytical methods can be used in other embodiments of the present invention.
  • the present invention suggests a set of safety instructions that is intended to minimize the plurality of distortions.
  • the set of safety instructions can include, but is not limited to, adding a harmonic filter.
  • the present invention is provided with the circuit breaker 1 to monitor over currents, ground faults, and short circuits.
  • a thermal magnetic circuit breaker 1 is used. Therefore, the circuit breaker 1 comprises a bimetal switch and an electromagnet.
  • the circuit breaker 1 can further comprise components that can be, but is not limited to, a latch spring 100, a latch lever 101, an over-center toggle spring 102, a magnetic armature 103, and a magnetic pole piece 105.
  • the latch spring 100, the latch lever 101, the over-center toggle spring 102, the magnetic armature 103, and the magnetic pole piece 105 are operatively coupled to each other and positioned in between the line terminal 13 and the load terminal 14 illustrated in FIG. 10. More specifically, the latch spring 100 compresses and pulls on the latch lever 101. Thus, the over-center toggle spring 102 also compresses disconnecting the overall current flow. More specifically, the arrangement of the internal components of the circuit breaker 1 ensures that the current flow through the circuit breaker 1 is interrupted at high currents by disconnecting an electrical contact 104 from the line terminal 13. As illustrated in FIG. 2, the thermal portion of the circuit breaker 1 provides a time response feature so that the circuit breaker 1 trips for considerably high over currents.
  • the magnetic portion responds to less extreme but long-term over current conditions.
  • an operating current is transferred from the power supply 2 into the line terminal 13 of the circuit breaker 1. The operating current then exits the circuit breaker 1 through the load terminal 14. The operating current is allowed to flow through the circuit breaker 1 and the present invention continues to monitor the operating current. If the operating current is greater than a predetermined current, the operating current is identified to be an over current and the bimetal switch is disconnected to stop the flow of the operating current. Moreover, if the operating current is identified to be significantly larger than the predetermined current, the operating current is identified to be an over current and the electromagnet is magnetized to prevent further flow of the operating current.
  • the magnetic armature 103 and the magnetic pole piece 105 are utilized in magnetizing the electromagnet. Even though a thermal magnetic circuit breaker 1 is used in the preferred embodiment, a different circuit breaker 1 can be used in other
  • GFCI ground fault circuit interrupter
  • AFCI arc fault circuit interrupter
  • FIG. 3A the present invention is further provided with a buffer amplifier 7 that is used to transfer a current from a first circuit having a low output impedance level to a second circuit having a high input impedance level.
  • the buffer amplifier 7 is electronically connected such that the analog signal is transferred from the neutral conductor 6 to the ADC 3 through the buffer amplifier 7.
  • the present invention When the present invention is in operation, and the operating current is less than the predetermined current or equal to the predetermined current, the user is not notified regarding the operation of the present invention.
  • the present invention is further provided with an indicator light 11 that is electronically connected to the circuit breaker 1. More specifically, the indicator light 11 will illuminate when the operating current is flowing through the circuit breaker 1.
  • a light emitting diode or a similar lighting source can be used as the indicator light 11.
  • another indicator light can be used to notify the stop of the flow of the operating current.
  • the circuit breaker 1 is activated to interrupt the operating current.
  • the present invention is further is provided with a user switch 12.
  • the user switch 12 will be connected to a contact within the circuit breaker 1 so that the overall current flow through the circuit breaker 1 can be effectively controlled.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)

Abstract

La présente invention concerne un procédé de surveillance d'harmoniques dans une onde sinusoïdale de courant alternatif (CA) qui est pourvu d'un disjoncteur, d'une alimentation électrique, d'un convertisseur analogique-numérique (CAN) et d'un processeur de signal numérique. Le CAN reçoit un signal analogique provenant d'un transformateur toroïde qui est enroulé autour d'un conducteur neutre traversant le disjoncteur. Le processeur de signal numérique reçoit un signal numérique depuis le CAN qui est ensuite transmis à un émetteur sans fil interne. Ensuite, une pluralité d'analyses est transmise sans fil à un dispositif informatique. Le dispositif informatique procède à l'analyse de la pluralité d'analyses et suggère un ensemble d'instructions de sécurité pour améliorer l'onde sinusoïdale CA traversant le disjoncteur.
PCT/IB2018/050406 2017-08-23 2018-01-23 Disjoncteur à harmoniques intelligent Ceased WO2019038601A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201762549325P 2017-08-23 2017-08-23
US62/549,325 2017-08-23

Publications (1)

Publication Number Publication Date
WO2019038601A1 true WO2019038601A1 (fr) 2019-02-28

Family

ID=65438550

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2018/050406 Ceased WO2019038601A1 (fr) 2017-08-23 2018-01-23 Disjoncteur à harmoniques intelligent

Country Status (1)

Country Link
WO (1) WO2019038601A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110571070A (zh) * 2019-08-22 2019-12-13 南方电网科学研究院有限责任公司 一种断路器的开断性能评估方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050207083A1 (en) * 2004-03-18 2005-09-22 General Electric Company Series arc detection
US20090195255A1 (en) * 2004-12-23 2009-08-06 David Kalokitis Apparatus and method for monitoring and controlling detection of stray voltage anomalies
US20100073113A1 (en) * 2008-09-22 2010-03-25 Siemens Energy & Automation, Inc. Electromagnet Assembly Directly Driving Latch Of An Electronic Circuit Breaker
US20100090789A1 (en) * 2008-10-14 2010-04-15 Middle Atlantic Products, Inc. Method, system and transformer for mitigating harmonics
US20110115585A1 (en) * 2009-11-16 2011-05-19 Square D Company Low cost multi-pole circuit breakers with shared components
US20160028231A1 (en) * 2011-04-22 2016-01-28 Melrok, Llc Systems and methods to establish and manage a network of distributed energy resources

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050207083A1 (en) * 2004-03-18 2005-09-22 General Electric Company Series arc detection
US20090195255A1 (en) * 2004-12-23 2009-08-06 David Kalokitis Apparatus and method for monitoring and controlling detection of stray voltage anomalies
US20100073113A1 (en) * 2008-09-22 2010-03-25 Siemens Energy & Automation, Inc. Electromagnet Assembly Directly Driving Latch Of An Electronic Circuit Breaker
US20100090789A1 (en) * 2008-10-14 2010-04-15 Middle Atlantic Products, Inc. Method, system and transformer for mitigating harmonics
US20110115585A1 (en) * 2009-11-16 2011-05-19 Square D Company Low cost multi-pole circuit breakers with shared components
US20160028231A1 (en) * 2011-04-22 2016-01-28 Melrok, Llc Systems and methods to establish and manage a network of distributed energy resources

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110571070A (zh) * 2019-08-22 2019-12-13 南方电网科学研究院有限责任公司 一种断路器的开断性能评估方法
CN110571070B (zh) * 2019-08-22 2021-07-30 南方电网科学研究院有限责任公司 一种断路器的开断性能评估方法

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