CN103795059A - Distributed photovoltaic power generation integrated control system - Google Patents
Distributed photovoltaic power generation integrated control system Download PDFInfo
- Publication number
- CN103795059A CN103795059A CN201410061844.7A CN201410061844A CN103795059A CN 103795059 A CN103795059 A CN 103795059A CN 201410061844 A CN201410061844 A CN 201410061844A CN 103795059 A CN103795059 A CN 103795059A
- Authority
- CN
- China
- Prior art keywords
- control
- voltage
- power generation
- microgrid
- photovoltaic
- 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
Images
Classifications
-
- 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
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
-
- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/10—Flexible AC transmission systems [FACTS]
-
- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention relates to a distributed photovoltaic power generation integrated control system. A low-voltage microgrid control terminal and a low-voltage power quality control device are accessed into a low-voltage grid, and a medium-voltage power quality control device and a medium-voltage distributed power generation control terminal are accessed into a medium-voltage grid. The distributed photovoltaic power generation integrated control system has the advantages that by means of the distributed photovoltaic power generation integrated control system, a distributed photovoltaic power supply serves as standby energy, power supply blockage can be alleviated, margin of a power distribution network is enlarged, power supply reliability is improved remarkably, controllable idle-work output capability is provided, busbar voltage level is maintained, voltage drop is alleviated, large-area power outage is avoided, and capacity of the existing power quality regulation device can be reduced remarkably when the distributed photovoltaic power generation integrated control system and the existing power quality regulation device of the power distribution network are combined to operate to perform idle-work regulation or harmonic wave inhibition.
Description
Technical field
The present invention relates to a kind of for controlling the control system of distributed access photovoltaic power generation equipment.
Background technology
The pattern that emerging large electrical network combines with photovoltaic generation is considered to reduce investment outlay, reduces energy consumption, raising power supply reliability and flexibility and realizes the important form of science with energy.For the power supply enterprise of containing distributed photovoltaic power, distributed power generation can fully utilize local superior resources, provides the clean and reliable energy to user.
But distributed power generation also can bring negative influence to the quality of power supply of distribution after introducing distribution system.Power distribution network is directly connected with user (especially resident) as the least significant end of electric power system, the power quality index of itself is just relatively backward, distributed power generation is introduced its quality of power supply level after distribution system and directly has influence on user's daily life and economic activity, various power quality problems as voltage falls, the problem such as flickering, short term outage, three-phase imbalance and harmonic wave makes more easily to occur that power supply is blocked and the generation of secondary fault.Can not indiscriminately imitate principal mode economic, the efficient solution as next in Active Power Filter-APF (APF), Static Var Compensator (SVC) etc. of traditional distribution network electric energy quality adjustment completely containing the governing problem of the distribution network electric energy quality of distributed photovoltaic power.
Summary of the invention
Technical problem to be solved by this invention is to realize a kind of quality of power supply Collaborative Control to the power distribution network containing distributed photovoltaic power, to realize whole distribution system science with and saving energy and reduce the cost, and maintaining under Distribution Network Reliability prerequisite, make distributed power generation take on more responsibilities on the basis of power supply, control target and be make distribution power factor rationally, voltage stabilization, maintain reduced levels without flickering, harmonic content.
To achieve these goals, the technical solution used in the present invention is: distributed photovoltaic power generation complex control system,
Low voltage electric network has access to low pressure microgrid control terminal, low-voltage electric energy quality control equipment, described low pressure microgrid control terminal comprises photo-voltaic power supply and energy storage device, and described low-voltage electric energy quality control equipment comprises power distribution network static reacance generator, Intelligent reactive CO automatic compensation and active filter;
Medium voltage network has access to middle piezoelectricity energy quality control equipment, middle pressure distributed power generation control terminal, described middle pressure distributed power generation control terminal comprises photo-voltaic power supply, and described middle piezoelectricity energy quality control equipment comprises high-capacity hybrid active power filter and high voltage static reactive-load compensator;
Described low pressure microgrid control terminal, low-voltage electric energy quality control equipment, middle piezoelectricity energy quality control equipment are all connected control centre by optical fiber with middle pressure distributed power generation control terminal;
Described control centre connects respectively the load control terminal on medium voltage network and low voltage electric network by bus control terminal.
Described control centre gathers the information of described low pressure microgrid control terminal, low-voltage electric energy quality control equipment, middle piezoelectricity energy quality control equipment and middle pressure distributed power generation control terminal and shares, and sends simultaneously and starts to adjust and finish to adjust signal;
Described middle piezoelectricity energy quality control equipment and middle pressure distributed power generation control terminal are in same electric pressure, adjust after signal when receiving control centre's request, comprehensively adjust with together with the middle pressure quality of power supply adjusting device of same level, make points of common connection power quality index recover normal, and piezoelectricity energy quality control equipment incision in can controlling;
Described low pressure microgrid control terminal and low-voltage electric energy quality control are equipped in same electric pressure, control the operation of photovoltaic microgrid, and receive control centre's control.
Described low pressure microgrid control terminal and low-voltage electric energy quality control equipment adopt networking pattern or island mode control strategy;
When described networking pattern control strategy is the networking operation of photovoltaic microgrid, the micro-source of photovoltaic is controlled as maximum power output pattern or access point constant power operation mode; Or when the networking operation of photovoltaic microgrid, the micro-source of photovoltaic is controlled as maximum meritorious output and the constant control strategy of load terminal voltage
Described island mode control strategy, for departing from from power distribution network when photovoltaic microgrid, when islet operation, by serving as the role of public network in the micro-source of one or several photovoltaic, carries out voltage and FREQUENCY CONTROL to photovoltaic microgrid.
The invention has the advantages that and utilize this system can make distributed photovoltaic power can be used as stand-by power source, alleviating power supply blocks, increase power distribution network nargin, can significantly improve power supply reliability, can possess controlled idle fan-out capability, can maintain busbar voltage level, alleviate voltage collapse simultaneously, also can prevent the generation of large area blackout, carry out idle adjusting with the existing quality of power supply adjusting device of power distribution network cooperation or suppress harmonic wave and can significantly reduce the former capacity.
Accompanying drawing explanation
Below the mark in content and figure that in specification of the present invention, every width accompanying drawing is expressed is briefly described:
Fig. 1 distributed photovoltaic power generation complex control system block diagram;
Fig. 2 is control system multi-agent system layer of structure.
Embodiment
By setting up many cover control terminals and centralized-control center, quality of power supply Collaborative Control to the power distribution network containing distributed photovoltaic power is carried out Comprehensive Control, distributed photovoltaic power can be realized whole system science with and saving energy and reduce the cost, the network system of framework as shown in Figure 1, its medium voltage network is 10kV bus, and low voltage electric network is 380V bus.
The distribution network electric energy quality multi-proxy control system of distributed photovoltaic power generation is by control centre (Center Agent), middle pressure distributed power generation control terminal (PV Agent), middle piezoelectricity energy quality control equipment (MV Agent), low pressure microgrid control terminal (LVMG), low-voltage electric energy quality control equipment (LV Agent), bus control terminal (Bus Agent) and load control agent (Load Agent) form, by Center Agent, multiple Agent are managed, multiple Agent form hierarchy, its communication structure as shown in Figure 2.Wherein PV Agent and MV Agent belong to voltage levels together, share same level bus quality of power supply information, and LVMG Agent and LV Agent belong to low-voltage-grade together, share same level bus quality of power supply information.
Low voltage electric network has access to low pressure microgrid control terminal, low-voltage electric energy quality control equipment, its mesolow microgrid control terminal comprises photo-voltaic power supply and energy storage device, and wherein low-voltage electric energy quality control equipment comprises power distribution network static reacance generator, Intelligent reactive CO automatic compensation and active filter; Medium voltage network has access to middle piezoelectricity energy quality control equipment, middle pressure distributed power generation control terminal, wherein, press distributed power generation control terminal to comprise photo-voltaic power supply, wherein middle piezoelectricity energy quality control equipment comprises high-capacity hybrid active power filter and high voltage static reactive-load compensator; Low pressure microgrid control terminal, low-voltage electric energy quality control equipment, middle piezoelectricity energy quality control equipment are all connected control centre by optical fiber with middle pressure distributed power generation control terminal; This control centre connects respectively the load control terminal on medium voltage network and low voltage electric network by bus control terminal.
Control centre (Center Agent) is overall quality of power supply control centre, gather the information of each Agent and share, send and start to adjust and finish to adjust signal, receive after the quality of power supply adjustment request of each Agent, the information of comprehensive each Agent and system short circuit capacity, branch road capacity, information on load, interconnection switch information etc. form the complete quality of power supply and adjust scheme, and divide to send instructions and carried out by each Agent.
Middle pressure distributed power generation control terminal (PV Agent) and middle piezoelectricity energy quality control equipment (MV Agent) are in same electric pressure, conventional operation mode is common grid-connected, be that surplus power can be sent outside, receive after the request adjustment signal of bus control agent, comprehensively adjust with together with the middle pressure quality of power supply adjusting device of same level, make points of common connection power quality index recover normal, and can control PV switching.
Low pressure microgrid control terminal (LVMG) and low-voltage electric energy quality control equipment (LV Agent) are in same electric pressure, control the operation of photovoltaic microgrid, determine flexibly its PQ/PV (networking pattern) or V/f (island mode) control strategy, accept the control of Center Agent, and the shared quality of power supply information with the LV/MV Agent in electric pressure, make collaborative adjustment, can effectively alleviate power supply stops up, improve power supply reliability, and traditional quality of power supply adjusting device capacity of same level bus is reduced greatly, major way is multiple idle or send out idle less with burning voltage for controlling, in severe situation, control photovoltaic microgrid and transfer islet operation to, in the time that the public network quality of power supply does not meet sensitive load requirement, accept load agency's request, for closing on sensitive load power supply.
Middle piezoelectricity energy quality control equipment (MV Agent) is the compound control equipment of Static Var Compensator (SVC) and high-power mixed active electric power filter (HAPF), or isolated operation device, idle continuous adjusting realize waveform distortion of the power supply network in medium voltage distribution network time, significantly improve the quality of power supply, reduce line loss.Possesses open field bus communication function simultaneously, when the information such as the fluctuation of central pressure bus transfer overvoltage, flickering, aberration rate height, MV Agent is by collaborative the PV Agent being connected with same level bus dynamic harmonic and the reactive power compensation of carrying out networking, major function is: 1, when PV and local load can not coordinated operations, while producing voltage fluctuation, MV Agent is by timely burning voltage, compensate because PV access, capacity and control are unreasonable, and dispatch the fluctuation that the adjustment of distribution voltage is brought; 2, the grid-connected harmonic current bringing of compensating non-linear load and DG; 3, load or burden without work provides reactive power support.
Low-voltage electric energy quality control equipment (LV Agent) is the compound dynamic energy-saving equipment of low-pressure side distribution static reacance generator (DSTATCOM) and intelligent powerless compensation device (IVC) or its isolated operation device and active filter (APF), and distributed multi-node collaborative Optimal Reactive Power compensation and the harmonic wave of realizing power distribution network low-pressure side suppress.Major function is: the harmonic pollution that 1, the micro-source of the photovoltaic of compensation based on power electronic technology grid-connected inverters produces; 2, quick compensating reactive power, regulates the voltage jump bringing due to microgrid on bus at the same level; 3, the three-phase imbalance that regulates single-phase micro-source to bring.
Bus control terminal (Bus Agent) is disposed at each bus in system, it is the most basic level of multi-agent system, for the power quality problem on bus, first send record ripple information by Bus Agent to Center Agent, adjust signal to LVMG/PV Agent or the LV/MV Agent request of sending of same electric pressure simultaneously, the configuration mode of change bus connection switch and other interconnection switches makes the bus that need to adjust the quality of power supply obtain best support, for example detect that voltage occurs falls phenomenon, to ask same level bus PV, photovoltaic microgrid, high-low pressure quality of power supply adjusting device is supported.
The insensitive load of control command switching that load control terminal (Load Agent) is mainly accepted each Agent to be to coordinate the stable needs of the quality of power supply, controls sensitive load and powered as microgrid or distributed power source by the more stable power supply source closing on.
PQ control mode: when the networking operation of photovoltaic microgrid, the micro-source of photovoltaic is controlled as maximum power output pattern or access point constant power operation mode; PV control mode: when the networking operation of photovoltaic microgrid, the micro-source of photovoltaic is controlled as maximum meritorious output and the constant control strategy of load terminal voltage; V/f control mode: when photovoltaic microgrid departs from from power distribution network, when islet operation, serve as the role of public network by the micro-source of one or several photovoltaic, photovoltaic microgrid is carried out to voltage and FREQUENCY CONTROL.
The communication mode of the distribution network electric energy quality complex control system containing distributed photovoltaic power generation based on Multi-Agent is: 1, direct information transmission, i.e. the direct information exchanged form of point-to-point, point-to-area connected network communication and broadcast communication; 2, collateral information transmission-" blackboard ", shares in " blackboard " global data base by all necessary informations, carries out indirect type information exchange for identical electric pressure Agent, and this method is carried out Collaborative Control for Agent provides enough data.
Although in communication process, Center Agent plans as a whole communication and the decision-making of whole system, but because each Agent has independence highly, therefore multi-level Agent can complete reflection state separately, improve the substantivity of linking up, multiechelon system has reduced communication intersects, and adjusts the time also helpful for the quality of power supply.Extensive use by high-speed field bus technology in integrated energy-saving and underlying device level protection supervising device; can set up the integrated supervisory control system of power distribution network Multi-Agent electric energy-saving and the energy-optimised dispatching platform of a set of open architecture, realize the optimization of distribution network electric energy quality problem and administer.
By reference to the accompanying drawings the present invention is exemplarily described above; obviously specific implementation of the present invention is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; or without improving, design of the present invention and technical scheme are directly applied to other occasion, all within protection scope of the present invention.
Claims (3)
1. distributed photovoltaic power generation complex control system, is characterized in that:
Low voltage electric network has access to low pressure microgrid control terminal, low-voltage electric energy quality control equipment, described low pressure microgrid control terminal comprises photo-voltaic power supply and energy storage device, and described low-voltage electric energy quality control equipment comprises power distribution network static reacance generator, Intelligent reactive CO automatic compensation and active filter;
Medium voltage network has access to middle piezoelectricity energy quality control equipment, middle pressure distributed power generation control terminal, described middle pressure distributed power generation control terminal comprises photo-voltaic power supply, and described middle piezoelectricity energy quality control equipment comprises high-capacity hybrid active power filter and high voltage static reactive-load compensator;
Described low pressure microgrid control terminal, low-voltage electric energy quality control equipment, middle piezoelectricity energy quality control equipment are all connected control centre by optical fiber with middle pressure distributed power generation control terminal;
Described control centre connects respectively the load control terminal on medium voltage network and low voltage electric network by bus control terminal.
2. distributed photovoltaic power generation complex control system according to claim 1, is characterized in that:
Described control centre gathers the information of described low pressure microgrid control terminal, low-voltage electric energy quality control equipment, middle piezoelectricity energy quality control equipment and middle pressure distributed power generation control terminal and shares, and sends simultaneously and starts to adjust and finish to adjust signal;
Described middle piezoelectricity energy quality control equipment and middle pressure distributed power generation control terminal are in same electric pressure, adjust after signal when receiving control centre's request, comprehensively adjust with together with the middle pressure quality of power supply adjusting device of same level, make points of common connection power quality index recover normal, and piezoelectricity energy quality control equipment incision in can controlling;
Described low pressure microgrid control terminal and low-voltage electric energy quality control are equipped in same electric pressure, control the operation of photovoltaic microgrid, and receive control centre's control.
3. according to claim 1 or described distributed photovoltaic power generation complex control system, it is characterized in that: described low pressure microgrid control terminal and low-voltage electric energy quality control equipment adopt networking pattern or island mode control strategy;
When described networking pattern control strategy is the networking operation of photovoltaic microgrid, the micro-source of photovoltaic is controlled as maximum power output pattern or access point constant power operation mode; Or when the networking operation of photovoltaic microgrid, the micro-source of photovoltaic is controlled as maximum meritorious output and the constant control strategy of load terminal voltage
Described island mode control strategy, for departing from from power distribution network when photovoltaic microgrid, when islet operation, by serving as the role of public network in the micro-source of one or several photovoltaic, carries out voltage and FREQUENCY CONTROL to photovoltaic microgrid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410061844.7A CN103795059A (en) | 2014-02-24 | 2014-02-24 | Distributed photovoltaic power generation integrated control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410061844.7A CN103795059A (en) | 2014-02-24 | 2014-02-24 | Distributed photovoltaic power generation integrated control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103795059A true CN103795059A (en) | 2014-05-14 |
Family
ID=50670498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410061844.7A Pending CN103795059A (en) | 2014-02-24 | 2014-02-24 | Distributed photovoltaic power generation integrated control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103795059A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104333013A (en) * | 2014-11-07 | 2015-02-04 | 国家电网公司 | SVG (Scalable Vector Graphics) based over-frequency/ under-frequency anti-islanding device of distributive photovoltaic generating system |
| CN104934972A (en) * | 2015-06-14 | 2015-09-23 | 浙江大学 | Active tide control power grid and control method of power exchange power node and medium-voltage distribution network |
| CN106849151A (en) * | 2015-12-03 | 2017-06-13 | 甘肃省电力公司风电技术中心 | A kind of photovoltaic plant accesses power network point voltage flicker assessment detection method |
| CN106849086A (en) * | 2017-04-01 | 2017-06-13 | 中国神华能源股份有限公司 | Electric filtering apparatus and method in a kind of power plants generating electricity system |
| CN108183485A (en) * | 2017-12-27 | 2018-06-19 | 阳光电源股份有限公司 | A kind of micro-capacitance sensor and its control system and control method |
| CN105162118B (en) * | 2015-09-21 | 2018-09-14 | 中国电力科学研究院 | A kind of more direct currents coordinate dc power in control and control method for determination of amount |
| CN109873498A (en) * | 2018-09-28 | 2019-06-11 | 安徽大学 | A kind of low-voltage network comprehensive power quality monitoring method containing distributed photovoltaic |
| CN112054516A (en) * | 2020-09-04 | 2020-12-08 | 广东电网有限责任公司广州供电局 | Hierarchical power supply framework, method and equipment for industrial park with distributed power supply |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050034023A1 (en) * | 2002-12-16 | 2005-02-10 | Maturana Francisco P. | Energy management system |
| CN102571514A (en) * | 2011-12-06 | 2012-07-11 | 山东电力集团公司济宁供电公司 | Intelligent power consumption cell system |
-
2014
- 2014-02-24 CN CN201410061844.7A patent/CN103795059A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050034023A1 (en) * | 2002-12-16 | 2005-02-10 | Maturana Francisco P. | Energy management system |
| CN102571514A (en) * | 2011-12-06 | 2012-07-11 | 山东电力集团公司济宁供电公司 | Intelligent power consumption cell system |
Non-Patent Citations (1)
| Title |
|---|
| 吕志鹏: "含分布式发电的配电网电能质量综合控制研究", 《中国优秀硕士论文全文数据库》, 30 April 2011 (2011-04-30), pages 43 - 51 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104333013A (en) * | 2014-11-07 | 2015-02-04 | 国家电网公司 | SVG (Scalable Vector Graphics) based over-frequency/ under-frequency anti-islanding device of distributive photovoltaic generating system |
| CN104934972A (en) * | 2015-06-14 | 2015-09-23 | 浙江大学 | Active tide control power grid and control method of power exchange power node and medium-voltage distribution network |
| CN104934972B (en) * | 2015-06-14 | 2017-05-31 | 浙江大学 | Power Exchange node and medium voltage distribution network active power flowcontrol power network and control method |
| CN105162118B (en) * | 2015-09-21 | 2018-09-14 | 中国电力科学研究院 | A kind of more direct currents coordinate dc power in control and control method for determination of amount |
| CN106849151A (en) * | 2015-12-03 | 2017-06-13 | 甘肃省电力公司风电技术中心 | A kind of photovoltaic plant accesses power network point voltage flicker assessment detection method |
| CN106849086A (en) * | 2017-04-01 | 2017-06-13 | 中国神华能源股份有限公司 | Electric filtering apparatus and method in a kind of power plants generating electricity system |
| CN108183485A (en) * | 2017-12-27 | 2018-06-19 | 阳光电源股份有限公司 | A kind of micro-capacitance sensor and its control system and control method |
| CN109873498A (en) * | 2018-09-28 | 2019-06-11 | 安徽大学 | A kind of low-voltage network comprehensive power quality monitoring method containing distributed photovoltaic |
| CN112054516A (en) * | 2020-09-04 | 2020-12-08 | 广东电网有限责任公司广州供电局 | Hierarchical power supply framework, method and equipment for industrial park with distributed power supply |
| CN112054516B (en) * | 2020-09-04 | 2022-06-21 | 广东电网有限责任公司广州供电局 | Hierarchical power supply framework, method and equipment for industrial park with distributed power supply |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103795059A (en) | Distributed photovoltaic power generation integrated control system | |
| CN105514966B (en) | A kind of direct-current grid group energy storage optimization and control method for coordinating | |
| CN107612051B (en) | AC/DC hybrid system based on dual-redundancy power electronic transformer | |
| CN110556856B (en) | Communication-independent multi-mode electric energy router and seamless switching control method thereof | |
| CN110601248B (en) | Multi-mode coordination control method of annular alternating current-direct current hybrid micro-grid system | |
| CN105932779A (en) | Energy router-based micro-grid | |
| CN110416991B (en) | Modularized multi-terminal flexible direct-current micro-grid networking and layered control method thereof | |
| CN105552914A (en) | Alternating-current/direct-current hybrid micro-grid layered control method based on electricity price | |
| CN207753466U (en) | A kind of Ac/dc Power Systems based on dual redundant electric power electric transformer | |
| CN108649568A (en) | A kind of off-network type micro-grid system and control method | |
| CN108599379A (en) | A kind of power monitoring system for micro-capacitance sensor group | |
| Kumar et al. | A review on microgrids with distributed energy resources | |
| CN108347067B (en) | Micro-grid architecture containing battery energy storage and generator and control method | |
| CN115441498A (en) | Platform area micro-grid system based on flexible direct current interconnection and control method thereof | |
| CN109659941A (en) | A kind of alternating current-direct current mixing micro-capacitance sensor autonomous control method and system | |
| CN110797899B (en) | Direct current system with dynamic reactive power compensation device and control method thereof | |
| Wang et al. | Voltage prevention and emergency coordinated control strategy for photovoltaic power plants considering reactive power allocation | |
| CN102570456B (en) | Distribution network intermittent energy consumption system and method based on active mechanism | |
| CN108923437B (en) | Multi-branch unified power flow controller based on self-adaptive control | |
| CN112104306B (en) | Mixed type flexible loop closing device and optical storage sharing interface control method | |
| CN112072664A (en) | Multi-input multi-output power supply device and integrated cabinet | |
| CN113555878A (en) | Platform district electric energy quality synthesizes compensation system | |
| CN106410819B (en) | The receiving end power grid dynamic reactive power optimization method and device of the infeasible node containing voltage | |
| CN209488190U (en) | Multi-purpose station electric system | |
| CN116094032A (en) | High-permeability photovoltaic access power distribution network Yun Bianduan cooperative energy self-balancing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140514 |
|
| RJ01 | Rejection of invention patent application after publication |