CN109274103A - A kind of integrated energy system topological structure - Google Patents
A kind of integrated energy system topological structure Download PDFInfo
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- CN109274103A CN109274103A CN201811399959.1A CN201811399959A CN109274103A CN 109274103 A CN109274103 A CN 109274103A CN 201811399959 A CN201811399959 A CN 201811399959A CN 109274103 A CN109274103 A CN 109274103A
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- 230000005611 electricity Effects 0.000 claims description 6
- 230000010363 phase shift Effects 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000007812 deficiency Effects 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000001737 promoting effect Effects 0.000 abstract 1
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000007726 management method Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/02—Circuit arrangements for ac mains or ac distribution networks using a single network for simultaneous distribution of power at different frequencies; using a single network for simultaneous distribution of ac power and of dc power
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- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Abstract
The invention discloses a kind of integrated energy system topological structures, the current uncontrollable deficiency of traditional power grid energy stream can be improved, the topological structure of alternating current-direct current distribution based on Technics of Power Electronic Conversion device, the standard interface of various electrical energy forms can not only be provided, real-time control can also be carried out to the voltage and current of each port, realize the power grids demands such as energy management, trend scheduling.In addition, the structure can realize the real-time acquisition of electric network data, big data support is provided for the operation of energy internet.New energy can be improved in structure receiving after promoting is horizontal, increases economic efficiency and environmental benefit.
Description
Technical field
The present invention relates to a kind of integrated energy system topological structures for comprehensive energy smart grid field.
Background technique
For alleviating energy crisis, reduce industrial discharge pollution, a large amount of distribution type renewable energy power generation is connected to the grid.
Since these generations of electricity by new energy have the characteristics that local position distribution, intermittence, randomness and uncontrollability, in order to mitigate electric network voltage
Power increases renewable energy utilization rate, and electric network composition and power flow gradually change.
Technics of Power Electronic Conversion technology can not only be distributed generation resource, energy storage device and the novel load in integrated energy system
Electric energy interface needed for providing, moreover it is possible to the energy stream of each node in accuracy-control system.Therefore, research is based on power electronic equipment
Comprehensive energy topological structure have important theoretical and practical significance.For existing a large amount of Distributed Renewable Energy Power Systems
How the problem of being connected to the grid improves the utilization efficiency of the energy, reduces influence of the new energy fluctuation to distribution, reduces because of new energy
Access and the compensation devices such as increased reactive voltage to increase economic efficiency, be the main target of technical staff.
Summary of the invention
The purpose of the invention is to overcome the deficiencies of the prior art and provide a kind of integrated energy system topological structure, obtain
To open alternating current-direct current distribution, the utilization efficiency of the energy is improved.
Realizing a kind of technical solution of above-mentioned purpose is: a kind of integrated energy system topological structure, including receives power grid, electric energy
Router, integrated energy system and power distribution network；
The power grid of receiving is connect with the electric energy router, receive power grid described in several and electric energy router combine to be formed it is micro-
Power grid；The power grid of receiving is connect by the electric energy router with the integrated energy system；
The integrated energy system is connect by the electric energy router with the power distribution network；
The electric energy router includes two-way AC/DC convertor, two-way DC converter, the first controller, the first sampling
Circuit, second controller and the second sample circuit；The exchange side of the two-way AC/DC convertor is connected with ac bus, described
The DC side of two-way AC/DC convertor is connected with the two-way DC converter, and the two-way DC converter is by two full-bridges
Circuit and high frequency transformer are constituted, and first controller is connect with the two-way AC/DC convertor, the second controller
It is connect with the two-way DC converter.
Further, the power grid of receiving includes that distributed generation resource receives power grid and load receives power grid.
Further, first controller includes first comparator, the first PI controller, the second comparator, the 2nd PI
Controller, third comparator, the 3rd PI controller, coordinate converter and the first pulse width modulator；
Wherein, the first comparator, the first PI controller, second comparator and the 2nd PI controller
Primary connection, the third comparator and the 3rd PI controller are sequentially connected, the 2nd PI controller and the third
Respectively to the coordinate converter input signal, the coordinate converter is inputted to first pulse width modulator to be believed PI controller
Number, control signal of the first pulse width modulator output for the two-way AC/DC convertor.
Further, the second controller includes sequentially connected 4th comparator, the 4th PI controller, phase shift duty
Than calculator and the second pulse width modulator, the control of the two-way DC converter is believed in the second pulse width modulator output
Number.
Further, the integrated energy system, including monitoring terminal, controlling terminal and intermediate control station.
A kind of integrated energy system topological structure of the invention, it is uncontrollable not can to improve current traditional power grid energy stream
Foot, the topological structure of the alternating current-direct current distribution based on Technics of Power Electronic Conversion device can not only provide the standard of various electrical energy forms
Change interface, moreover it is possible to real-time control be carried out to the voltage and current of each port, realize the power grids demands such as energy management, trend scheduling.This
Outside, which can realize the real-time acquisition of electric network data, provide big data support for the operation of energy internet.The structure is promoted
The receiving that new energy can be improved afterwards is horizontal, increases economic efficiency and environmental benefit.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of integrated energy system topological structure of the invention；
Fig. 2 is a kind of structural schematic diagram of the electric energy router of integrated energy system topological structure of the invention；
Fig. 3 is a kind of structural schematic diagram of the first controller 53 of integrated energy system topological structure of the invention；
Fig. 4 is a kind of structural schematic diagram of the second controller 55 of integrated energy system topological structure of the invention.
Specific embodiment
In order to preferably understand technical solution of the present invention, below by specifically embodiment and in conjunction with attached drawing
It is described in detail:
Referring to Fig. 1, a kind of integrated energy system topological structure, including receive power grid, electric energy router, integrated energy system
2 and power distribution network 3.Wherein electric energy router is divided into main line electric energy router 21 and secondary electric energy router 22.
Power grid of receiving includes that distributed generation resource receives power grid 11 and load receives power grid 12.Distributed energy receives power grid 11 and is not only energy
Source load is also important energy supply source, including wind-power electricity generation, photovoltaic power generation.Realizing the fusion of different characteristic energy flow is
The function of intelligent network distribution indispensability.
Any one is received power grid and connect with secondary electric energy router 22, several receive power grid and secondary electric energy router 22
Combination forms micro-capacitance sensor 4.Power grid of receiving passes through secondary electric energy router 22 and connect with integrated energy system 2.Integrated energy system 2 wraps
Monitoring terminal, controlling terminal and intermediate control station are included, to carry out coordinated planning, optimization operation and coordinated management to micro-capacitance sensor 4.
Integrated energy system 2 is connect by main line electric energy router 21 with power distribution network 3.
Referring to Fig. 2, electric energy router, it is possible to provide different voltages hierarchical organization (such as main line electric energy router 21 and secondary
Electric energy router 22), adapt to input, output, conversion, the storage of different energy sources carrier.Electric energy router includes two-way alternating current-direct current
Converter 51, two-way DC converter 52, the first controller 53, the first sample circuit 54, second controller 55 and the second sampling
Circuit 56.The exchange side of two-way AC/DC convertor 51 is connected with ac bus, the DC side of two-way AC/DC convertor 51 with
Two-way DC converter 52 is connected, and two-way DC converter 52 is made of two full-bridge circuits and high frequency transformer, the first control
Device 53 is connect with two-way AC/DC convertor 51, and second controller 55 is connect with two-way DC converter 52.First controller 53
Realize the control of two-way AC/DC convertor 51 and two-way DC converter 52 respectively with second controller 55, control target is dimension
DC voltage stability is held, guarantees power transmission.The electricity of first sample circuit 54 and the second sample circuit 56 to realize electric equipment
The acquisition of the data such as pressure, electric current, power provides initial data to controller, completes closed-loop control.
Referring to Fig. 3, the first controller 53 includes first comparator 61, the first PI controller 62, the second comparator 63, the
Two PI controllers 64, third comparator 65, the 3rd PI controller 66, coordinate converter 67 and the first pulse width modulator 68.
Wherein, first comparator 61, the first PI controller 62, the second comparator 63 and the 2nd PI controller 64 once connect
Connect, third comparator 65 and the 3rd PI controller 66 are sequentially connected, the 2nd PI controller 64 and the 3rd PI controller 66 respectively to
67 input signal of coordinate converter, coordinate converter 67 is to 68 input signal of the first pulse width modulator, the first pulse width modulator 68
Export the control signal for two-way AC/DC convertor 51.
In controller 1, the input value of the first PI controller is calculated by first comparator:
Vbusref-Vbus；
First PI controller carries out control operation after the output for receiving the first comparator, exports corresponding control
Amount are as follows:
idref=kp1(Vbusref-Vbus)+ki1∫(Vbusref-Vbus) dt,
Wherein, kp1And ki1It is the control coefrficient of the first PI controller；
The input value of the 2nd PI controller is calculated by the second comparator:
idref-id；
2nd PI controller carries out control operation after the output for receiving second comparator, exports corresponding control
Amount are as follows:
ud=kp2(idref-id)+ki2∫(idref-id) dt,
Wherein, kp2And ki2It is the control coefrficient of the 2nd PI controller；The 3rd PI controller is calculated by third comparator
Input value:
iqref-iq；
3rd PI controller carries out control operation after the output for receiving the third comparator, exports corresponding control
Amount are as follows:
uq=kp3(iqref-iq)+ki3∫(iqref-iq) dt,
Wherein, kp3And ki3It is the control coefrficient of the 3rd PI controller；Controller is by the u of acquisitiond、uqFirst pass through dq-abc seat
Mark transformation, obtains ua、ubAnd ucThree amounts, coordinate transform formula is as follows, and wherein θ is the synchro angle of net side alternating voltage,
By ua、ubAnd ucThree amounts compared with carrier wave, obtain the driving signal of two-way AC/DC convertor as control signal
1, then driving signal 1 is sent to the control terminal of two-way 51 bridge arm of AC/DC convertor, so that two-way AC/DC convertor 51 exports
Corresponding voltage vector.
Referring to Fig. 4, second controller 55 includes sequentially connected 4th comparator 71, the 4th PI controller 72, phase shift
Duty ratio calculator 73 and the second pulse width modulator 74, the second pulse width modulator 74 export the control for two-way DC converter 52
Signal processed.
The input value of the 4th PI controller is calculated by the 4th comparator:
V1ref-V1,
Wherein V1 is two-way DC converter Single port voltage；4th PI controller is receiving the 4th comparator
Control operation is carried out after output, exports corresponding control amount are as follows:
kp4(V1ref-V1)+ki4∫(V1ref-V1) dt,
Wherein, kp4And ki4It is the control coefrficient of the 4th PI controller；
Phase shift ratio is calculated according to the voltage V2 of the control amount of the 4th PI controller and port two.Believe phase shift ratio as control
Number compared with carrier wave, the driving signal 2 of two-way DC converter 52 is obtained, then driving signal 2 is sent to two-way DC converter
The control terminal of 52 bridge arms, so that the corresponding voltage vector of the output of two-way DC converter 52.
Those of ordinary skill in the art it should be appreciated that more than embodiment be intended merely to illustrate the present invention,
And be not used as limitation of the invention, as long as the change in spirit of the invention, to embodiment described above
Change, modification will all be fallen within the scope of claims of the present invention.
Claims (5)
1. a kind of integrated energy system topological structure, including receive power grid, electric energy router, integrated energy system and power distribution network,
It is characterized in that:
The power grid of receiving is connect with the electric energy router, receives power grid described in several and electric energy router combines to form micro- electricity
Net；The power grid of receiving is connect by the electric energy router with the integrated energy system；
The integrated energy system is connect by the electric energy router with the power distribution network；
The electric energy router includes two-way AC/DC convertor, two-way DC converter, the first controller, the first sampling electricity
Road, second controller and the second sample circuit；The exchange side of the two-way AC/DC convertor is connected with ac bus, described double
It is connected to the DC side of AC/DC convertor with the two-way DC converter, the two-way DC converter is by two full-bridge electricity
Road and high frequency transformer are constituted, and first controller is connect with the two-way AC/DC convertor, the second controller and
The two-way DC converter connection.
2. a kind of integrated energy system topological structure according to claim 1, which is characterized in that the power grid of receiving includes point
Cloth power supply receives power grid and load receives power grid.
3. a kind of integrated energy system topological structure according to claim 1, which is characterized in that the first controller packet
It includes first comparator, the first PI controller, the second comparator, the 2nd PI controller, third comparator, the 3rd PI controller, sit
Mark converter and the first pulse width modulator；
Wherein, the first comparator, the first PI controller, second comparator and the 2nd PI controller are primary
Connection, the third comparator and the 3rd PI controller are sequentially connected, and the 2nd PI controller and the 3rd PI are controlled
Device processed respectively to the coordinate converter input signal, the coordinate converter to the first pulse width modulator input signal,
Control signal of the first pulse width modulator output for the two-way AC/DC convertor.
4. a kind of integrated energy system topological structure according to claim 1, which is characterized in that the second controller packet
Include sequentially connected 4th comparator, the 4th PI controller, phase shift duty ratio calculator and the second pulse width modulator, described second
Pulse width modulator exports the control signal for the two-way DC converter.
5. a kind of integrated energy system topological structure according to claim 1, which is characterized in that the comprehensive energy system
System, including monitoring terminal, controlling terminal and intermediate control station.
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| CN201811399959.1A CN109274103B (en) | 2018-11-22 | 2018-11-22 | Topology structure of comprehensive energy system |
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| CN201811399959.1A CN109274103B (en) | 2018-11-22 | 2018-11-22 | Topology structure of comprehensive energy system |
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| CN109274103B CN109274103B (en) | 2023-11-07 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107681697A (en) * | 2017-11-01 | 2018-02-09 | 国网江苏省电力公司南京供电公司 | Store up the energy router topology device and control method of lotus optimum management in source |
| CN107834592A (en) * | 2017-11-01 | 2018-03-23 | 上海交通大学 | The energy router topology structure and control method of source storage lotus unified management |
| CN108134393A (en) * | 2018-01-29 | 2018-06-08 | 华中科技大学 | A kind of Regional Energy interconnection distribution network system based on electric energy route technology |
| CN108281987A (en) * | 2018-01-12 | 2018-07-13 | 中国电力科学研究院南京分院 | A kind of energy source router applied to island microgrid |
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2018
- 2018-11-22 CN CN201811399959.1A patent/CN109274103B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107681697A (en) * | 2017-11-01 | 2018-02-09 | 国网江苏省电力公司南京供电公司 | Store up the energy router topology device and control method of lotus optimum management in source |
| CN107834592A (en) * | 2017-11-01 | 2018-03-23 | 上海交通大学 | The energy router topology structure and control method of source storage lotus unified management |
| CN108281987A (en) * | 2018-01-12 | 2018-07-13 | 中国电力科学研究院南京分院 | A kind of energy source router applied to island microgrid |
| CN108134393A (en) * | 2018-01-29 | 2018-06-08 | 华中科技大学 | A kind of Regional Energy interconnection distribution network system based on electric energy route technology |
Non-Patent Citations (3)
| Title |
|---|
| BOWEN HONG ET AL.: "Energy-Internet-oriented microgrid energy management system architecture and its applicaiton in China", 《APPLIED ENERGY》, pages 2153 - 2164 * |
| 刘迎澎，王安瑶: "基于电能路由器的交直流微网信息集成系统", 《电力系统及其自动化学报》, vol. 30, no. 4, pages 77 - 84 * |
| 徐荆州 等: "基于能源路由器的源网荷储优化管理", 《电力需求侧管理》, vol. 20, no. 6, pages 16 - 17 * |
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