CN103280844B - Alternating/direct current hybrid multi-level micro grid system - Google Patents
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Abstract
The invention relates to an alternating/direct current hybrid multi-level micro grid system. The system comprises a main alternating current micro grid system, a sub alternating current micro grid system, a direct current micro grid system and a micro grid control system, wherein the main alternating current micro grid system comprises a bus of a main alternating current micro grid section I, a bus of a main alternating current micro grid section II, a parallel network switch PCC1 (program-controlled computer 1), a compensating device, a super capacitor energy storing device, a main energy storing battery, a photovoltaic battery pack, first and second converter devices, an invertion device and first to seventh controllable switches; and the sub alternating current micro grid system comprises a sub alternating current micro grid bus, grid-connected point switches PCC3 and PCC4 and first and second user type systems. The system is flexible in structure and has a modular structure, can form various system structures and can be used for researching the grid-connected and off-grid switching of the systems at different levels.
Description
Technical field
The present invention relates to a kind of alternating/direct current hybrid multi-level micro grid system.
Background technology
Distributed power generation utilizes form as the one of regenerative resource is important, is worldwide developed rapidly.Compared with relying on the centralized generating of tradition of remote conveying distribution, distributed power generation has adapted to electricity needs and the resource distribution of dispersion to a certain extent, simultaneously for subsequent use each other with centralized bulk power grid, and power supply reliability is also improved; And the distributed generation technology based on clean energy resource have pollution less, reliability and many-sided advantage such as efficiency of energy utilization is high, infield is flexible.But, distributed power generation accesses the operation and management of bulk power grid to conventional electric power system on a large scale and brings new problem: on the one hand, distributed power generation is a uncontrollable source relative to bulk power grid, therefore bulk power grid often take to limit, the mode of isolation to dispose distributed power generation, to reducing impact to bulk power grid; On the other hand, unidirectional, the single path feature of the passive radiation shape operating structure that current bulk power grid distribution system has and energy flow, distributed power generation is made to be incorporated to borne forms and to run, namely the energy output of distributed power generation must be less than the customer charge of infield, causes distributed power generation ability to be structurally just extremely restricted.
Micro-capacitance sensor is a kind of local hair electricity electrical network organizational form comprising multiple distributed power source and contiguous load thereof, its appearance solves distributed power generation access problem well, the requirement of the continued power of important load after bulk power grid has a power failure can be ensured simultaneously, become a kind of development trend of the bulk power grid of distributed power generation access from now on.
Comprise a large amount of power electronic equipments in micro-capacitance sensor, operationally can bring more current harmonics to micro-capacitance sensor.The supplementary function of micro-capacitance sensor to electrical network not yet fully demonstrates, and the peak load shifting of micro-capacitance sensor and bulk power grid, each other for subsequent use etc. acting on there is no effective control device as support.Meanwhile, the micro-grid system come into operation at present is mostly centralized application, applies dumb, not easily modularization management.And the system features of distributing micro-capacitance sensor is remarkable, diverse in function, but relevant paractical research is less, to be studied abundant in content at present.
Summary of the invention
The present invention is directed to above problem and propose a kind of alternating/direct current hybrid multi-level micro grid system of flexible structure.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of alternating/direct current hybrid multi-level micro grid system, is characterized in that it comprises the main micro-grid system of interchange, exchanges sub-micro-grid system, DC micro power grid system and micro grid control system;
The main micro-grid system of described interchange comprises the main micro-capacitance sensor of interchange I section of bus, exchanges main micro-capacitance sensor II section of bus and site switch P CC1, compensation arrangement, super capacitor energy storage device, main energy-storage battery, photovoltaic cell group, the first to the second convertor assembly, inverter and the first to the 7th gate-controlled switch; Described compensation arrangement includes active power filter APF and reactive power compensator SVG; The main micro-capacitance sensor of described interchange I section of bus warp also site switch P CC1 connects interchange 400V power distribution network bus; Described Active Power Filter-APF APF and reactive power compensator SVG connect through the second gate-controlled switch and the 3rd gate-controlled switch respectively and exchange main micro-capacitance sensor I section of bus; Described super capacitor energy storage device connects exchange main micro-capacitance sensor I section of bus through the first convertor assembly, the 4th gate-controlled switch successively; Large-sized power load connects as first order load and exchanges main micro-capacitance sensor I section of bus; Described main energy storage battery device connects exchange main micro-capacitance sensor II section of bus through the second convertor assembly, the 5th gate-controlled switch successively; Described photovoltaic cell group connects exchange main micro-capacitance sensor II section of bus through inverter, the 6th gate-controlled switch successively; First AC load connects the main micro-capacitance sensor of interchange II section of bus as other loads exchanging main micro-capacitance sensor through the 7th gate-controlled switch; Exchange main micro-capacitance sensor I section of bus and the main micro-capacitance sensor of interchange II section of bus to be connected by the first gate-controlled switch;
The sub-micro-grid system of described interchange comprises the sub-micro-capacitance sensor bus of interchange and site switch P CC3-PCC4, the first to the second residents system; Described interchange sub-micro-capacitance sensor bus warp also site switch P CC3 connects the main micro-capacitance sensor of interchange II section of bus; Described first residents system comprises the first inversion charged integrated, the second photovoltaic cell, the second energy-storage battery, the 3rd to the 4th DC/DC increasing apparatus and the 12 gate-controlled switch; The power end of described first inversion charged integrated connects through the 12 gate-controlled switch and exchanges sub-micro-capacitance sensor bus, and the second AC load connects the AC of the first inversion charged integrated as the load of the first residents system; Described second photovoltaic cell connects the respective input of the first inversion charged integrated DC side through the 3rd DC/DC increasing apparatus; Described second energy-storage battery connects the respective input of the first inversion charged integrated DC side through the 4th DC/DC increasing apparatus; Described second residents system is identical with the first residents system configuration, and the second residents system comprises the second inversion charged integrated, the 3rd photovoltaic cell, the 3rd energy-storage battery, the 5th to the 6th DC/DC increasing apparatus and the 13 gate-controlled switch; Described second residents system and the first residents system by and site switch P CC4 be connected;
Described DC micro power grid system comprises direct-current grid bus and site switch P CC2, the first photovoltaic cell, the first energy storage battery device, wind-driven generator simulation, the 3rd convertor assembly, the first to the 2nd DC/DC increasing apparatus and the 8th to the 11 gate-controlled switch; Described direct-current grid bus successively through the 3rd convertor assembly and site switch P CC2 connect and exchange main micro-capacitance sensor I section of bus; Described first photovoltaic cell connects direct-current grid bus through a DC/DC increasing apparatus, the 8th gate-controlled switch successively; Described first energy storage battery device connects direct-current grid bus through the 2nd DC/DC increasing apparatus, the 9th gate-controlled switch successively; Described wind-driven generator simulation connects direct-current grid bus through the tenth gate-controlled switch; First DC load connects direct-current grid bus as the load of DC micro power grid system through the 11 gate-controlled switch;
The corresponding output end of described micro grid control system connects the control end of the first gate-controlled switch to the 13 gate-controlled switch respectively, the corresponding test side of micro grid control system connects and the output of site switch P CC1-PCC4 respectively, and described first convertor assembly is connected with the respective input of micro grid control system to the 3rd convertor assembly, a DC/DC increasing apparatus respectively to the corresponding output end of the 6th DC/DC increasing apparatus.
Beneficial effect of the present invention is:
System configuration of the present invention is flexible, modular construction, polymorphic type power supply, load access micro-capacitance sensor provides research, experiment porch, can according to test pattern of wants direct-current grid, exchange main micro-capacitance sensor, exchange sub-micro-capacitance sensor, the multiple systems structure such as alternating current-direct current mixing microgrid and each level system and from the research of netting switching.
Accompanying drawing explanation
Fig. 1 is system architecture diagram of the present invention.
Embodiment
From embodiment shown in the drawings, the present embodiment comprises the main micro-grid system of interchange, exchanges sub-micro-grid system, DC micro power grid system and micro grid control system;
The main micro-grid system of described interchange comprises the main micro-capacitance sensor of interchange I section of bus, exchanges main micro-capacitance sensor II section of bus and site switch P CC1, compensation arrangement, super capacitor energy storage device, main energy-storage battery, photovoltaic cell group, the first to the second convertor assembly, inverter and the first to the 7th gate-controlled switch; Described compensation arrangement includes active power filter APF and reactive power compensator SVG; The main micro-capacitance sensor of described interchange I section of bus warp also site switch P CC1 connects interchange 400V power distribution network bus; Described Active Power Filter-APF APF and reactive power compensator SVG connect through the second gate-controlled switch and the 3rd gate-controlled switch respectively and exchange main micro-capacitance sensor I section of bus; Described super capacitor energy storage device connects exchange main micro-capacitance sensor I section of bus through the first convertor assembly, the 4th gate-controlled switch successively; Large-sized power load connects as first order load and exchanges main micro-capacitance sensor I section of bus; Described main energy storage battery device connects exchange main micro-capacitance sensor II section of bus through the second convertor assembly, the 5th gate-controlled switch successively; Described photovoltaic cell group connects exchange main micro-capacitance sensor II section of bus through inverter, the 6th gate-controlled switch successively; First AC load connects the main micro-capacitance sensor of interchange II section of bus as other loads exchanging main micro-capacitance sensor through the 7th gate-controlled switch; Exchange main micro-capacitance sensor I section of bus and the main micro-capacitance sensor of interchange II section of bus to be connected by the first gate-controlled switch;
The sub-micro-grid system of described interchange comprises the sub-micro-capacitance sensor bus of interchange and site switch P CC3-PCC4, the first to the second residents system; Described interchange sub-micro-capacitance sensor bus warp also site switch P CC3 connects the main micro-capacitance sensor of interchange II section of bus; Described first residents system comprises the first inversion charged integrated, the second photovoltaic cell, the second energy-storage battery, the 3rd to the 4th DC/DC increasing apparatus and the 12 gate-controlled switch; The power end of described first inversion charged integrated connects through the 12 gate-controlled switch and exchanges sub-micro-capacitance sensor bus, and the second AC load connects the AC of the first inversion charged integrated as the load of the first residents system; Described second photovoltaic cell connects the respective input of the first inversion charged integrated DC side through the 3rd DC/DC increasing apparatus; Described second energy-storage battery connects the respective input of the first inversion charged integrated DC side through the 4th DC/DC increasing apparatus; Described second residents system is identical with the first residents system configuration, and the second residents system comprises the second inversion charged integrated, the 3rd photovoltaic cell, the 3rd energy-storage battery, the 5th to the 6th DC/DC increasing apparatus and the 13 gate-controlled switch; Described second residents system and the first residents system by and site switch P CC4 be connected;
Described DC micro power grid system comprises direct-current grid bus and site switch P CC2, the first photovoltaic cell, the first energy storage battery device, wind-driven generator simulation, the 3rd convertor assembly, the first to the 2nd DC/DC increasing apparatus and the 8th to the 11 gate-controlled switch; Described direct-current grid bus successively through the 3rd convertor assembly and site switch P CC2 connect and exchange main micro-capacitance sensor I section of bus; Described first photovoltaic cell connects direct-current grid bus through a DC/DC increasing apparatus, the 8th gate-controlled switch successively; Described first energy storage battery device connects direct-current grid bus through the 2nd DC/DC increasing apparatus, the 9th gate-controlled switch successively; Described wind-driven generator simulation connects direct-current grid bus through the tenth gate-controlled switch; First DC load connects direct-current grid bus as the load of DC micro power grid system through the 11 gate-controlled switch;
The corresponding output end of described micro grid control system connects the control end of the first gate-controlled switch to the 13 gate-controlled switch respectively, the corresponding test side of micro grid control system connects and the output of site switch P CC1-PCC4 respectively, and described first convertor assembly is connected with the respective input of micro grid control system to the 3rd convertor assembly, a DC/DC increasing apparatus respectively to the corresponding output end of the 6th DC/DC increasing apparatus.
Described DC micro power grid system also comprises DC/DC potential device, direct-current grid primary and secondary line and the 14 gate-controlled switch; Described direct-current grid primary and secondary line connects direct-current grid bus through DC/DC potential device, and the second DC load connects direct-current grid primary and secondary line as load through the 14 gate-controlled switch; The corresponding output end of micro grid control system described in the control termination of described 14 gate-controlled switch.
Described micro grid control system is NMC1000 distributed power generation/energy storage and the micro-capacitance sensor operation control system of model.
When micro grid control system detects that power distribution network (bulk power grid) breaks down or initiatively gives the instruction of micro-capacitance sensor islet operation for the object of testing, and site switch P CC1 disconnects, and micro-capacitance sensor enters islet operation pattern.In micro-capacitance sensor, power supply is by the photovoltaic battery pack for power generation exchanged in main micro-grid system, and to be provided by the grid-connected form of current source, under main energy-storage battery operates in voltage source mode, provides the support exchanging main micro-capacitance sensor voltage and frequency.Meanwhile, utilize the feature of super capacitor energy storage device fast response time, stabilize the voltage fluctuation exchanging main micro-capacitance sensor and occur when starting large-sized power load.Compensation arrangement APF, SVG, be used for eliminating the idle and harmonic current exchanged in main micro-capacitance sensor.Large-sized power load provides by exchanging photovoltaic cell and main energy storage battery device in main micro-capacitance sensor with the power of the first AC load consumption, when institute's consumed power is less than the power of photovoltaic cell and the generation of main energy storage battery device, its power that produces can be limited, maintain exchange voltage in main micro-capacitance sensor, frequency stable.
When micro grid control system detects that power distribution network (bulk power grid) recovers normal, when can be incorporated into the power networks, and site switch P CC1 closes a floodgate, and control exchanges main micro-capacitance sensor and distribution system (bulk power grid) is incorporated into the power networks.Now, exchange all inverters in main micro-capacitance sensor and be all incorporated into the power networks with current source form, photovoltaic cell group is by MPPT track algorithm Maximum Power Output.In order to reduce the loss of main energy-storage battery, increase the service time of main energy-storage battery, main energy-storage battery remains full of electricity condition, and in one week or longer time, electric discharge once.Exchanging between main micro-capacitance sensor and power distribution network (bulk power grid) power can free flow, exchanges voltage in main micro-capacitance sensor, frequency is supported by power distribution network (bulk power grid).
When exchanging sub-micro-capacitance sensor and detecting that the main micro-capacitance sensor of interchange breaks down or micro grid control system sends command adapted thereto, and site switch P CC3 disconnects, and exchanges sub-micro-capacitance sensor to the main micro-capacitance sensor of interchange from network operation.Exchange sub-micro-capacitance sensor in the present embodiment to be made up of two equal modules.Photovoltaic cell connects inversion charged integrated with energy storage battery device and forms DC bus after the boosting of DC/DC increasing apparatus, under inversion charged integrated is in inverter mode operating state, run with voltage source form, support the stable operation exchanging voltage, frequency in sub-micro-capacitance sensor, after the inversion of inversion charged integrated, belt AC load is run.
When exchanging sub-micro-capacitance sensor and detecting that exchanging main micro-capacitance sensor recovers normal, micro grid control system sends corresponding control command, and site switch P CC3 closes a floodgate, and exchanges sub-micro-capacitance sensor and exchanges main micro-grid connection and run.Inversion charged integrated runs in a charge mode, grid-connected with current source form.Prime energy-storage battery absorbed power, the preferential power using photovoltaic cell to send.When after energy-storage battery charging complete, in order to Loss reducing, increase the life-span that energy-storage battery uses, energy-storage battery departs from the sub-micro-grid system of interchange.Exchange sub-micro-capacitance sensor with exchange power between main micro-capacitance sensor can free flow.
When direct-current grid detect exchange main micro-capacitance sensor break down or micro grid control system sends command adapted thereto time, and site switch P CC2 disconnects, direct-current grid with exchange main micro-capacitance sensor from network operation.3rd convertor assembly is out of service, and the first energy-storage battery and photovoltaic cell are incorporated into the power networks with the main microgrid bus of direct current after increasing apparatus boosting, and blower fan is incorporated into the power networks simultaneously.DC load institute consumed power is born by the main microgrid bus of direct current.
When direct-current grid detects that exchanging main micro-capacitance sensor recovers normal, micro grid control system sends corresponding control command, and site switch P CC2 closes a floodgate, direct-current grid with exchange main micro-grid connection and run.In order to Loss reducing, increase energy-storage battery useful life, energy-storage battery can be made to quit work, and the 3rd convertor assembly brings into operation.When DC load institute consumed power in direct-current grid exceed direct-current grid produce power time, the 3rd convertor assembly runs under rectification mode, and direct-current grid power demand provides by exchanging main micro-capacitance sensor.When DC load institute consumed power in direct-current grid be less than direct-current grid produce power time, the 3rd convertor assembly to be had nothing to do lower operation in inversion, with current source form with exchange main micro-grid connection and run.
The following is the group net operation mode that the present embodiment is different:
(1) when and site switch P CC1, the first gate-controlled switch site switch P CC2 and site switch P CC3 all closed time, exchange main micro-grid system, exchange sub-micro-grid system and DC micro power grid system is all incorporated into the power networks with power distribution network (bulk power grid);
(2) when and site switch P CC1 disconnects, the first gate-controlled switch site switch P CC2 and site switch P CC3 all closed time, form the main micro-grid system of interchange, exchange the micro-capacitance sensor pilot system of sub-micro-grid system and DC micro power grid system;
(3) when and site switch P CC1, the first gate-controlled switch site switch P CC3 are all closed time, and during site switch P CC2 disconnection, exchange main micro-grid system, exchange sub-micro-grid system and power distribution network (bulk power grid) is incorporated into the power networks, DC micro power grid system is from network operation;
(4) when and site switch P CC1 site switch P CC2 site switch P CC3 close, when first gate-controlled switch disconnects, exchange main micro-grid system, exchange sub-micro-grid system to power distribution network (bulk power grid) from network operation, DC micro power grid system is incorporated into the power networks to power distribution network (bulk power grid);
And site switch P CC1 site switch P CC2, the first gate-controlled switch are closed (5), and during site switch P CC3 disconnection, exchange main micro-grid system, DC micro power grid system is incorporated into the power networks to power distribution network (bulk power grid), exchange sub-micro-grid system to power distribution network (bulk power grid) from network operation;
And site switch P CC3, the first gate-controlled switch are closed (6), and site switch P CC1 site switch P CC2 are when disconnecting, exchange sub-micro-grid system with exchange main micro-grid system be incorporated into the power networks and to electrical network (bulk power grid) from network operation, DC micro power grid system islet operation;
And site switch P CC1, the first gate-controlled switch are closed (7), and site switch P CC2 site switch P CC3 are when disconnecting, exchange main micro-grid system to be incorporated into the power networks to power distribution network (bulk power grid), exchange sub-micro-grid system, the equal islet operation of DC micro power grid system;
And site switch P CC2, the first gate-controlled switch are closed (8), and site switch P CC1 site switch P CC3 are when disconnecting, exchange main micro-grid system and DC micro power grid system be incorporated into the power networks and to electrical network (bulk power grid) from network operation, exchange sub-micro-grid system islet operation;
(9) first gate-controlled switches close, and site switch P CC1 site switch P CC2 site switch P CC3 are when disconnecting, exchange main micro-grid system to power distribution network (bulk power grid) from network operation, exchange sub-micro-grid system to the main micro-grid system of interchange from network operation, DC micro power grid system is to exchanging main micro-grid system from network operation.
Claims (3)
1. an alternating/direct current hybrid multi-level micro grid system, is characterized in that it comprises the main micro-grid system of interchange, exchanges sub-micro-grid system, DC micro power grid system and micro grid control system;
The main micro-grid system of described interchange comprises the main micro-capacitance sensor of interchange I section of bus, exchanges main micro-capacitance sensor II section of bus and site switch P CC1, compensation arrangement, super capacitor energy storage device, main energy-storage battery, photovoltaic cell group, the first to the second convertor assembly, inverter and the first to the 7th gate-controlled switch; Described compensation arrangement includes active power filter APF and reactive power compensator SVG; The main micro-capacitance sensor of described interchange I section of bus warp also site switch P CC1 connects interchange 400V power distribution network bus; Described Active Power Filter-APF APF and reactive power compensator SVG connect through the second gate-controlled switch and the 3rd gate-controlled switch respectively and exchange main micro-capacitance sensor I section of bus; Described super capacitor energy storage device connects exchange main micro-capacitance sensor I section of bus through the first convertor assembly, the 4th gate-controlled switch successively; Large-sized power load connects as first order load and exchanges main micro-capacitance sensor I section of bus; Described main energy storage battery device connects exchange main micro-capacitance sensor II section of bus through the second convertor assembly, the 5th gate-controlled switch successively; Described photovoltaic cell group connects exchange main micro-capacitance sensor II section of bus through inverter, the 6th gate-controlled switch successively; First AC load connects the main micro-capacitance sensor of interchange II section of bus as other loads exchanging main micro-capacitance sensor through the 7th gate-controlled switch; Exchange main micro-capacitance sensor I section of bus and the main micro-capacitance sensor of interchange II section of bus to be connected by the first gate-controlled switch;
The sub-micro-grid system of described interchange comprises the sub-micro-capacitance sensor bus of interchange and site switch P CC3-PCC4, the first to the second residents system; Described interchange sub-micro-capacitance sensor bus warp also site switch P CC3 connects the main micro-capacitance sensor of interchange II section of bus; Described first residents system comprises the first inversion charged integrated, the second photovoltaic cell, the second energy-storage battery, the 3rd to the 4th DC/DC increasing apparatus and the 12 gate-controlled switch; The power end of described first inversion charged integrated connects through the 12 gate-controlled switch and exchanges sub-micro-capacitance sensor bus, and the second AC load connects the AC of the first inversion charged integrated as the load of the first residents system; Described second photovoltaic cell connects the respective input of the first inversion charged integrated DC side through the 3rd DC/DC increasing apparatus; Described second energy-storage battery connects the respective input of the first inversion charged integrated DC side through the 4th DC/DC increasing apparatus; Described second residents system is identical with the first residents system configuration, and the second residents system comprises the second inversion charged integrated, the 3rd photovoltaic cell, the 3rd energy-storage battery, the 5th to the 6th DC/DC increasing apparatus and the 13 gate-controlled switch; Described second residents system and the first residents system by and site switch P CC4 be connected;
Described DC micro power grid system comprises direct-current grid bus and site switch P CC2, the first photovoltaic cell, the first energy storage battery device, wind-driven generator simulation, the 3rd convertor assembly, the first to the 2nd DC/DC increasing apparatus and the 8th to the 11 gate-controlled switch; Described direct-current grid bus successively through the 3rd convertor assembly and site switch P CC2 connect and exchange main micro-capacitance sensor I section of bus; Described first photovoltaic cell connects direct-current grid bus through a DC/DC increasing apparatus, the 8th gate-controlled switch successively; Described first energy storage battery device connects direct-current grid bus through the 2nd DC/DC increasing apparatus, the 9th gate-controlled switch successively; Described wind-driven generator simulation connects direct-current grid bus through the tenth gate-controlled switch; First DC load connects direct-current grid bus as the load of DC micro power grid system through the 11 gate-controlled switch;
The corresponding output end of described micro grid control system connects the control end of the first gate-controlled switch to the 13 gate-controlled switch respectively, the corresponding test side of micro grid control system connects and the output of site switch P CC1-PCC4 respectively, and described first convertor assembly is connected with the respective input of micro grid control system to the 3rd convertor assembly, a DC/DC increasing apparatus respectively to the corresponding output end of the 6th DC/DC increasing apparatus.
2. a kind of alternating/direct current hybrid multi-level micro grid system according to claim 1, is characterized in that described DC micro power grid system also comprises DC/DC potential device, direct-current grid primary and secondary line and the 14 gate-controlled switch; Described direct-current grid primary and secondary line connects direct-current grid bus through DC/DC potential device, and the second DC load connects direct-current grid primary and secondary line as load through the 14 gate-controlled switch; The corresponding output end of micro grid control system described in the control termination of described 14 gate-controlled switch.
3. a kind of alternating/direct current hybrid multi-level micro grid system according to claim 2, is characterized in that described micro grid control system is NMC1000 distributed power generation/energy storage and the micro-capacitance sensor operation control system of model.
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527416A (en) * | 2013-10-23 | 2014-01-22 | 国家电网公司 | User wind and photovoltaic complementary power generation system suitable for sea island micro-grid power supply mode |
| CN105515032B (en) * | 2016-01-27 | 2018-07-17 | 广东工业大学 | intelligent micro-grid energy storage control method |
| CN106329530B (en) * | 2016-10-26 | 2019-02-22 | 广东工业大学 | A kind of alternating current-direct current wired home microgrid cooperative system and its operation method |
| CN108347056B (en) * | 2018-01-30 | 2020-06-26 | 北京四方继保自动化股份有限公司 | AC/DC hybrid micro-grid control method |
| CN110601248B (en) * | 2019-09-11 | 2023-01-10 | 华北电力大学（保定） | Multi-mode coordination control method of annular alternating current-direct current hybrid micro-grid system |
| CN110970943B (en) * | 2019-12-20 | 2023-05-26 | 南方科技大学 | Hybrid micro-grid system and control method thereof |
| CN111463827A (en) * | 2020-04-20 | 2020-07-28 | 江苏镇安电力设备有限公司 | Multi-machine parallel small-sized micro-grid system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664415A (en) * | 2012-04-27 | 2012-09-12 | 湖北省电力公司电力试验研究院 | Classified microgrid networking system based on terminal users |
| CN103078325A (en) * | 2012-12-31 | 2013-05-01 | 河北省电力公司电力科学研究院 | Alternating current and direct current mixed micro power grid system and control method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5272033B2 (en) * | 2011-03-23 | 2013-08-28 | 三菱重工業株式会社 | Battery system |
-
2013
- 2013-05-14 CN CN201310176402.2A patent/CN103280844B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664415A (en) * | 2012-04-27 | 2012-09-12 | 湖北省电力公司电力试验研究院 | Classified microgrid networking system based on terminal users |
| CN103078325A (en) * | 2012-12-31 | 2013-05-01 | 河北省电力公司电力科学研究院 | Alternating current and direct current mixed micro power grid system and control method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 交直流混合微网关键技术研究;殷晓刚等;《高压电器》;20120930;第48卷(第9期);全文 * |
| 微电网结构特性分析与设计;黄文焘等;《电力系统保护与控制》;20120916;第40卷(第18期);全文 * |
| 适用于交直流混合微电网的直流分层控制系统;陆晓楠等;《电工技术学报》;20130430;第28卷(第4期);全文 * |
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