CN103485966B - Wave energy generating set - Google Patents
Wave energy generating set Download PDFInfo
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- CN103485966B CN103485966B CN201310405233.5A CN201310405233A CN103485966B CN 103485966 B CN103485966 B CN 103485966B CN 201310405233 A CN201310405233 A CN 201310405233A CN 103485966 B CN103485966 B CN 103485966B
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- 230000007246 mechanism Effects 0.000 claims abstract description 74
- 238000012546 transfer Methods 0.000 claims abstract description 39
- 230000005611 electricity Effects 0.000 claims description 15
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- 238000012360 testing method Methods 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000010248 power generation Methods 0.000 description 4
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- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
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- 238000003199 nucleic acid amplification method Methods 0.000 description 2
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- 230000002411 adverse Effects 0.000 description 1
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- 238000004134 energy conservation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
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Abstract
The invention discloses a kind of wave energy generating set, including wave energy collecting mechanism that is that be arranged on platform and that be sequentially connected with, energy transfer mechanism, electromotor and current transformer, also include the control system being all connected with wave energy collecting mechanism, energy transfer mechanism, electromotor and current transformer；Energy transfer mechanism is internally provided with flow speed control valve, and the current output terminal of current transformer connects electrical network.Wave energy generating set converts wave energy into mechanical energy by wave energy collecting mechanism, is transferred to energy transfer mechanism, is converted to rotating mechanical energy, drives electromotor rotary electrification；The electric current of electromotor output is converted to and line voltage, electric current that frequency is identical by current transformer, can be directly incorporated into electrical network；The status signal of each link of control system Real-time Collection wave energy generating set, and energy transfer mechanism, electromotor and current transformer are coordinated control, it is achieved the control to output, and ensure that wave energy generating set output electric energy meets requirement.
Description
Technical field
The invention belongs to electricity generation system technical field, particularly relate to a kind of wave energy generating set.
Background technology
Wave-energy power generation is with the energy of wave for power generation electric energy, and wave energy is a kind of almost limitless energy
Amount resource, utilizes wave-energy power generation to bring power supply to industry and household electricity and ensures, bring the biggest side
Just.
At present, conventional wave-energy power generation technology is to use wave energy collecting mechanism to gather wave energy, by energy
The energy that wave fluctuation produces is converted into electric energy by amount shifter and electromotor, and is directly accessed by electromotor
Electrical network or directly charged device load, by the electric energy direct grid-connected produced or use.
But, due to intermittence and the undulatory property of wave energy, the quality of power supply that electromotor produces is unable to reach directly
Connect requirement that is grid-connected and that use, the electric energy of generation is directly accessed electrical network and electrical network can be brought adverse effect.
Summary of the invention
Based on this, the invention reside in that the quality of power supply overcoming electromotor in prior art to produce is poor, be unable to reach
The defect of the requirement of direct grid-connected and use, it is provided that a kind of wave energy generating set.
Its technical scheme is as follows:
A kind of wave energy generating set, including wave energy harvester that is that be arranged on platform and that be sequentially connected with
Structure, energy transfer mechanism, electromotor and current transformer, also include turning with described wave energy collecting mechanism, energy
The control system that converting mechanism, electromotor and current transformer all electrically connect；Described energy transfer mechanism is internally provided with
Flow speed control valve, described current transformer connects electrical network.
Below further technical scheme is illustrated:
Described energy transfer mechanism also includes power executive component, supercharger, accumulator and prime mover, described
Power executive component, supercharger, flow speed control valve and prime mover are sequentially connected with；Between described supercharger and flow speed control valve
It is connected in parallel described accumulator, described flow speed control valve regulation rate-of flow.
Described wave energy collecting mechanism, energy transfer mechanism, electromotor and current transformer all feed back internal signal to
Described control system, the feedback coordinated control instruction of described control system gives described energy transfer mechanism, electromotor
And current transformer, control output electric energy and meet grid-connected requirement.
Described control system is additionally provided with the external communication interface communicated with external system.
Described current transformer includes main circuit, control circuit, sensor and switch；Described switch ends connects respectively
Connect described main circuit and electrical network, and described sensor is arranged at described main circuit, described in described sensor acquisition
The electric parameters of main circuit feeds back to described control circuit, and described control circuit is according to the electricity of described sensor acquisition
Tolerance is coordinated to control described main circuit；Described generator feedback tach signal gives described control circuit.
Described main circuit includes rectification circuit, DC capacitor, inverter circuit and the filter circuit being sequentially connected with；
Main circuit generator side, DC capacitor DC side and the electric parameters of grid side, institute described in described sensor acquisition
State control circuit, according to described electric parameters and tach signal, described rectification circuit and inverter circuit sent control letter
Number.
Described control circuit includes current/voltage testing circuit, computing circuit, drive circuit, velocity measuring electricity
Road, imput output circuit and protection circuit；Described main circuit generator side, DC capacitor DC side and electrical network
The electric parameters of side all feeds back to described computing circuit by described current/voltage testing circuit, described electromotor
Tach signal is fed back to described computing circuit by described velocity checking circuits；Described computing circuit is according to described electricity
Tolerance and tach signal send control signal to described rectification circuit and inverter circuit；Described control system and institute
State imput output circuit to connect.
Described wave energy collecting mechanism and energy transfer mechanism are provided with many sets, and the described energy conversion of many sets
Mechanism is all connected with described electromotor.
Below the principle of preceding solution, effect etc. are illustrated:
1. wave energy generating set converts wave energy into mechanical energy by wave energy collecting mechanism, is transferred to energy
Amount shifter, is converted to rotating mechanical energy, drives electromotor rotary electrification；The electric current of electromotor output leads to
Cross current transformer to be converted to and line voltage, electric current that frequency is identical, electrical network can be directly incorporated into；Energy conversion machine
The flow of the flow speed control valve scalable medium in structure, thus the energy balance of controllable energy shifter medium
Rotating speed with energy transfer mechanism；The status signal of each link of control system Real-time Collection wave energy generating set,
And energy transfer mechanism, electromotor and current transformer are coordinated control, it is achieved the control to output,
And ensure that wave energy generating set output electric energy meets requirement.
2. the mechanical energy of wave energy collecting mechanism output is converted to the energy of other forms, by charger boost,
Prime mover is driven to rotate through flow speed control valve；Accumulator is used for storing unnecessary medium energy, the output of stable energy；
Flow speed control valve accepts the instruction from control system, and the energy of regulation energy transfer mechanism output is to drive prime mover；
Prime mover can be the hydraulic turbine or turbine, drives electromotor to generate electricity.
3. wave energy collecting mechanism, energy transfer mechanism, electromotor and current transformer all electrically connect with control system,
And according to signal coordinated control energy transfer mechanism, electromotor and the current transformer of feedback, it is achieved that control system
Monitoring and the control of running status to whole wave energy generating set, can control the defeated of wave energy generating set
Go out power, make the electric energy of output meet grid-connected requirement.
4. external communication interface can be easy to wave energy generating set and other forms with External system communication
Jointly controlling of the energy.
5. the alternating current of electromotor output is converted to unidirectional current by the rectification circuit in current transformer, through unidirectional current
Rong Houzai is converted to and line voltage, alternating current that frequency is identical through inverter circuit, after filtered circuit filtering
Electrical network can be directly incorporated into.Sensor and current/voltage testing circuit gather the electric parameters of main circuit and feed back to control
Circuit, electromotor gathers speed feedback signal to be carried out the feedback signal of collection to control circuit, computing circuit
Calculation process, provides the break-make control instruction of power component in rectification circuit and inverter circuit；Drive circuit will
The control instruction that computing circuit is given carries out Phototube Coupling and amplification, drives the break-make of power component to control to become
Whether stream device exports electric current.Protection circuit is for providing the protection of current transformer internal circuit.
6. many set wave energy collecting mechanisms and energy transfer mechanism are set, wave energy can be expanded and gather face, and,
Multiple wave energy collecting mechanism can be made separately, make different wave energy collecting mechanisms produce according to different waves
Different fluctuations, increases wave energy and is converted into machinery transformation of energy.
Accompanying drawing explanation
Fig. 1 is that this wave energy generating set forms schematic diagram；
Fig. 2 is this wave energy generating set energy transfer mechanism schematic diagram；
Fig. 3 is this wave energy generating set current transformer schematic diagram.
Description of reference numerals:
100. wave energy generating sets, 110. platforms, 120. wave energy collecting mechanisms, 130. energy transfer mechanisms,
140. electromotors, 150. current transformers, 160. control systems, 170. electrical networks, 131. hydraulic cylinders,
132. superchargers, 133. flow speed control valves, 134. prime mover, 135. accumulators, 136. cylinders,
152. main circuits, 154. control circuits, 156. sensors, 158. switches, 1522. rectification circuits,
1524. DC capacitors, 1526. inverter circuits, 1528. filter circuits, 1541. current/voltage testing circuits,
1542. computing circuits, 1543. drive circuits, 1544. velocity checking circuits, 1545. imput output circuits,
1546. protection circuit.
Detailed description of the invention
Below embodiments of the invention are described in detail:
As it is shown in figure 1, a kind of wave energy generating set, including that be arranged on platform 110 and connect successively
Wave energy collecting mechanism 120, energy transfer mechanism 130, electromotor 140 and the current transformer 150 connect, also wraps
Include and be all electrically connected with wave energy collecting mechanism 120, energy transfer mechanism 130, electromotor 140 and current transformer 150
The control system 160 connect；Energy transfer mechanism 130 is internally provided with flow speed control valve 133, and current transformer 150 connects
Electrical network 170.
Wave energy generating set converts wave energy into mechanical energy by wave energy collecting mechanism 120, is transferred to
Energy transfer mechanism 130, is converted to rotating mechanical energy, drives electromotor 140 rotary electrification.
The electric current of electromotor 140 output is converted to identical with electrical network 170 voltage, frequency by current transformer 150
Electric current, electrical network 170 can be directly incorporated into；Flow speed control valve 133 scalable medium in energy transfer mechanism 130
Flow, flow speed control valve 133 is the combination valve being in series by uniform-pressure-drop valve and choke valve, and choke valve is used for adjusting
The flow that joint passes through, uniform-pressure-drop valve is used for automatically compensating the impact of load change, makes the pressure before and after choke valve
Difference is definite value, can eliminate the load change impact on flow；Thus controllable energy shifter 130 intermediary
The energy balance of matter and the rotating speed of energy transfer mechanism 130, thus control the size of electric energy amount of translation, make electricity
Output can stablize, meanwhile, the workload of current transformer 150 can be reduced.
The status signal of each link of control system 160 Real-time Collection wave energy generating set, and energy is changed
Mechanism 130, electromotor 140 and current transformer 150 coordinate control, it is achieved the control to output, and
Ensure that wave energy generating set output electric energy meets requirement.Current transformer 150 is application converter technique and microelectronics
Technology, controls the electric control appliance of alternating current generator 140 by changing motor working power Frequency Patterns,
Its required supply voltage can be provided according to being actually needed of motor, thus reach energy-conservation, speed governing, carry
The purpose of the high quality of power supply, and then protection electrical network 170.
Wave energy collecting mechanism 120 can be oscillating water column mechanism, pendulum-type mechanism or wave piston；Electromotor
140 use magneto alternator 140.
As in figure 2 it is shown, wherein in an embodiment, energy transfer mechanism 130 also includes that power performs unit
Part 131, supercharger 132, accumulator 135 and prime mover 134, power executive component 131, supercharger 132,
Flow speed control valve 133 and prime mover 134 are sequentially connected with；It is connected in parallel storage between supercharger 132 and flow speed control valve 133
Energy device 135, flow speed control valve 133 regulates fluid flow.The mechanical energy of wave energy collecting mechanism 120 output is converted to
The energy of other forms, by supercharger 132 supercharging, drives prime mover 134 to rotate through flow speed control valve 133；
Accumulator 135 is used for storing unnecessary medium energy, the output of stable energy；Flow speed control valve 133 accept from
The instruction of control system 160, the energy of regulation energy transfer mechanism 130 output is to drive prime mover 134；Former
Motivation 134 can be the hydraulic turbine or turbine, drives electromotor 140 to generate electricity.Certainly, the present embodiment institute
The medium referred to can be liquid, it is also possible to being gas, power executive component 131 can be hydraulic cylinder, it is possible to
To be cylinder.
Wave energy collecting mechanism 120, energy transfer mechanism 130, electromotor 140 and current transformer 150 all feed back
Internal signal to control system 160, the feedback coordinated control instruction of control system 160 to energy transfer mechanism 130,
Electromotor 140 and current transformer 150, control output electric energy and meet grid-connected requirement.Wave energy collecting mechanism 120,
Energy transfer mechanism 130, electromotor 140 and current transformer 150 all electrically connect with control system 160, and according to
Signal coordinated control energy transfer mechanism 130, electromotor 140 and the current transformer 150 of feedback, it is achieved that control
System 160, to the monitoring of whole wave energy generating set 100 and the control of running status, can control wave energy
The output of TRT 100, makes the electric energy of output meet grid-connected requirement.
Control system 160 is additionally provided with the external communication interface communicated with external system.External communication interface can be with
External system communication, can be easy to jointly controlling of the wave energy generating set 100 energy with other forms.
As it is shown on figure 3, current transformer 150 includes main circuit 152, control circuit 154, sensor 156 and opens
Close 158；Switch 158 two ends and connect main circuit 152 and electrical network 170 respectively, and sensor 156 is arranged at master
Circuit 152, sensor 156 gathers the electric parameters of main circuit 152 and feeds back to control circuit 154, control circuit
The 154 electric parameters coordination control main circuits 152 gathered according to sensor 156；Electromotor 140 feeds back rotating speed letter
Number give control circuit 154.The electric current of electromotor 140 output is flowed to electrical network 170 by main circuit 152, and
Main circuit 152 is provided with switch 158, can determine whether the electricity that electromotor 140 produces according to actual needs
Stream is transported to electrical network 170；Main circuit 152 is additionally provided with sensor 156, can gather main circuit 152 each point
Signal feeds back to control circuit 154, and control circuit 154 can be coordinated to control main circuit 152 according to feedback signal
The electric current of middle electric current, voltage, tach signal.
Rectification circuit 1522 that main circuit 152 includes being sequentially connected with, DC capacitor 1524, inverter circuit 1526
With filter circuit 1528；It is straight that sensor 156 gathers main circuit 152 electromotor 140 side, DC capacitor 1524
Stream side and the electric parameters of electrical network 170 side, control circuit 154 according to electric parameters and tach signal to rectification circuit
1522 and inverter circuit 1526 send control signal.The alternating current of electromotor 140 output is by current transformer 150
In rectification circuit 1522 be converted to unidirectional current, change through inverter circuit 1526 again after DC capacitor 1524
For with electrical network 170 voltage, alternating current that frequency is identical, electricity can be directly incorporated into after the filtering of filtered circuit 1528
Net 170；Sensor 156 and current/voltage testing circuit gather the electric parameters of main circuit 152 and feed back to control electricity
Road 154, electromotor 140 gathers speed feedback signal to control circuit 154, and control circuit 154 is according to electrically
Amount and tach signal control output.
Control circuit 154 include current/voltage testing circuit 1541, computing circuit 1542, drive circuit 1543,
Velocity checking circuits 1544, imput output circuit 1545 and protection circuit 1546；Main circuit 152 electromotor
The electric parameters of 140 sides, DC capacitor 1524 DC side and electrical network 170 side is all by current/voltage testing circuit
1541 feed back to computing circuit 1542, and the tach signal of electromotor 140 is fed back by velocity checking circuits 1544
To computing circuit 1542；Computing circuit 1542 according to electric parameters and tach signal to rectification circuit 1522 and inverse
Power transformation road 1526 sends control signal；Control system 160 is connected with imput output circuit 1545.Computing electricity
The feedback signal of collection is carried out calculation process by road 1542, provides rectification circuit 1522 and inverter circuit 1526
The break-make control instruction of middle power component；The control instruction that computing circuit 1542 is given by drive circuit 1543
Carry out Phototube Coupling and amplification, drive the break-make of power component to control whether current transformer 150 exports electric current.
Protection circuit 1546 is for providing the protection of current transformer 150 internal circuit.
Wave energy collecting mechanism 120 and energy transfer mechanism 130 are provided with many sets, and many set energy conversions
Mechanism 130 is all connected with electromotor 140.Many set wave energy collecting mechanisms 120 and energy transfer mechanism are set
130, wave energy can be expanded and gather face；Multiple wave energy collecting mechanism 120 can be made separately, make different waves
Different fluctuations can be produced according to different waves by collecting mechanism 120, increase wave energy to machinery transformation of energy.
Embodiment described above only have expressed the detailed description of the invention of the present invention, and it describes more concrete and detailed,
But therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for this area
Those of ordinary skill for, without departing from the inventive concept of the premise, it is also possible to make some deformation and
Improving, these broadly fall into protection scope of the present invention.
Claims (5)
1. a wave energy generating set, it is characterised in that include being arranged on platform and being sequentially connected with
Wave energy collecting mechanism, energy transfer mechanism, electromotor and current transformer, also include adopting with described wave energy
The control system that collecting mechanism, energy transfer mechanism, electromotor and current transformer all electrically connect；Described energy is changed
The in-house flow speed control valve that is provided with, described current transformer connects electrical network；Described current transformer includes main circuit, control
Circuit, sensor and switch；Described switch ends connects described main circuit and electrical network, and described sensing respectively
Device is arranged at described main circuit, and the electric parameters of main circuit described in described sensor acquisition feeds back to described control electricity
Road, described control circuit is coordinated to control described main circuit according to the electric parameters of described sensor acquisition；Described
Motor feedback tach signal gives described control circuit；
Described main circuit includes rectification circuit, DC capacitor, inverter circuit and the filter circuit being sequentially connected with；
Main circuit generator side, DC capacitor DC side and the electric parameters of grid side, institute described in described sensor acquisition
State control circuit, according to described electric parameters and tach signal, described rectification circuit and inverter circuit sent control letter
Number；
Described control circuit includes current/voltage testing circuit, computing circuit, drive circuit, velocity measuring electricity
Road, imput output circuit and protection circuit；Described main circuit generator side, DC capacitor DC side and electrical network
The electric parameters of side all feeds back to described computing circuit by described current/voltage testing circuit, described electromotor
Tach signal is fed back to described computing circuit by described velocity checking circuits；Described computing circuit is according to described electricity
Tolerance and tach signal send control signal to described rectification circuit and inverter circuit；Described control system and institute
State imput output circuit to connect；Described protection circuit is for providing the protection of described current transformer internal circuit.
Wave energy generating set the most according to claim 1, it is characterised in that described energy conversion machine
Structure also includes power executive component, supercharger, accumulator and prime mover, described power executive component, supercharging
Device, flow speed control valve and prime mover are sequentially connected with；Described accumulator it is connected in parallel between described supercharger and flow speed control valve,
Described flow speed control valve regulation rate-of flow.
Wave energy generating set the most according to claim 1, it is characterised in that described wave energy collection
Mechanism, energy transfer mechanism, electromotor and current transformer all feed back internal signal give described control system, described
The feedback coordinated control instruction of control system gives described energy transfer mechanism, electromotor and current transformer, controls output
Electric energy meets grid-connected requirement.
Wave energy generating set the most according to claim 3, it is characterised in that described control system is also
It is provided with the external communication interface communicated with external system.
Wave energy generating set the most according to claim 1, it is characterised in that described wave energy collection
Mechanism and energy transfer mechanism are provided with many sets, and overlap described energy transfer mechanism all with described electromotor
Connect.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310405233.5A CN103485966B (en) | 2013-09-06 | 2013-09-06 | Wave energy generating set |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310405233.5A CN103485966B (en) | 2013-09-06 | 2013-09-06 | Wave energy generating set |
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| CN103485966A CN103485966A (en) | 2014-01-01 |
| CN103485966B true CN103485966B (en) | 2016-08-10 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110500227B (en) * | 2019-08-27 | 2020-09-29 | 杭州电子科技大学 | A frequency-adjustable ocean wave energy power generation device and its power generation method |
| CN113067397B (en) * | 2021-04-13 | 2025-09-05 | 国家海洋技术中心 | An electrical conversion and control system for a wave energy power generation device |
| CN114542366B (en) * | 2022-01-10 | 2024-07-16 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Wave energy generator output switching circuit |
| CN117075675B (en) * | 2023-10-18 | 2024-03-05 | 西安集成电路设计专业孵化器有限公司 | Embedded integrated circuit chip current control method and device |
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| JP5553677B2 (en) * | 2010-05-06 | 2014-07-16 | 本田技研工業株式会社 | Output controller for hybrid generator |
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| CN101604954A (en) * | 2009-07-13 | 2009-12-16 | 山西合创电力科技有限公司 | Integrated method of vector and direct torque control for doubly-fed wind turbines |
| CN102705144A (en) * | 2010-12-15 | 2012-10-03 | Tecnalia研究与创新基金 | Power take-off device for wave energy transformation |
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Address after: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Applicant after: Company limited of China Energy Engineering Group Guangdong Electric Power Design Institute Address before: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Applicant before: Guangdong Electric Power Design Institute of CEEC |
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