CN203491708U - AC-DC intelligent allocating energy-storage current commutation apparatus - Google Patents
AC-DC intelligent allocating energy-storage current commutation apparatus Download PDFInfo
- Publication number
- CN203491708U CN203491708U CN201320580436.3U CN201320580436U CN203491708U CN 203491708 U CN203491708 U CN 203491708U CN 201320580436 U CN201320580436 U CN 201320580436U CN 203491708 U CN203491708 U CN 203491708U
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- circuit module
- direct current
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- converter circuit
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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
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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- Supply And Distribution Of Alternating Current (AREA)
- Direct Current Feeding And Distribution (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model belongs to the technical field of new energy electric power and particularly relates to an AC-DC intelligent allocating energy-storage current commutation apparatus. A photovoltaic array is taken as a second DC electric power source to be connected with a second DC electric power input port of the AC-DC intelligent allocating energy-storage current commutation apparatus and then connected to a grid-connected inverter via a second DC electric power roll-out connection port of the AC-DC intelligent allocating energy-storage current commutation apparatus. After the over-discharge of a storage battery and when the photovoltaic array satisfies a power generation condition, a control circuit module is used to regulate and control an electric control switch and a protection circuit via a system bus so as to enable the second DC electric power input port to be communicated with a DC bus and enable a bidirectional current commutation circuit module to complete black-start. When the weather satisfies the power generation condition, a micro power grid is enabled to start a voltage source device and power lines of the micro power grid are enabled to establish voltage and frequency, so that the operation of the micro power grid is restored to perform power generation and supply.
Description
technical field
The utility model belongs to new forms of energy power technology field, is specifically related to a kind of alternating current-direct current intelligent allocation energy storage current converter.
background technology
It is main micro-electrical network mode that distributed new electric power application development trends towards using by oneself, mostly form from the micro-electrical network of net type, particularly photoelectricity or wind-powered electricity generation are main generation of electricity by new energy power supply micro-grid system, for do not have Diesel engine or other controlled electric power Power supplies from the micro-electrical network of net type, prior art and equipment are when application, utilize bidirectional energy-storage converter as the voltage source of micro-electrical network, but the energy storage current converter moving as voltage source V F mode cannot implement to discharge and recharge control to storage battery, and be discharged to after protection at it, because the starting resistor of energy storage bi-directional inverter is higher than discharge prevention voltage, so cannot start, during particularly from the micro-power grid application of net type, even if generator unit (as photovoltaic generation) can generate electricity by the time, also the voltage source V F unit energy storage bi-directional inverter because of micro-electrical network cannot start operation, cause micro-electric network power line cannot set up voltage and frequency and generator unit cannot be powered, cause microgrid cannot move power supply and paralyse, therefore prior art and scheme depends on Diesel engine or other controlled electric supplies carry out black startup.
summary of the invention
In order to overcome this defect of prior art, make micro-electrical network when weather possesses the condition of generating, just energy starting resistor source apparatus, makes micro-electric network power line set up voltage and frequency, recovers operation the generating power supply of micro-electrical network.The utility model proposes a kind of alternating current-direct current intelligent allocation energy storage current converter, comprise: two-way converter circuit module, DC bus, batteries direct-flow input end mouth, control circuit module, electric-controlled switch and protective circuit, the second direct current power input port, converter circuit ac output end mouth, the second direct current power produces connectivity port, system power-on switch and system bus, it is characterized in that: batteries direct-flow input end mouth connects two-way converter circuit module by DC bus, by two-way converter circuit module, connect converter circuit ac output end mouth, form the two-way change of current electrical path of energy storage,
By the second direct current power input port access electric-controlled switch and protective circuit, by DC bus and be communicated with two-way converter circuit module, by two-way converter circuit module, connect converter circuit ac output end mouth, form the second direct current power power supply change of current path;
By connecting the second direct current power after the second direct current power input port access electric-controlled switch and protective circuit, produce connectivity port, form the second direct current power and produce connection electrical path;
Control circuit module connected system starting switch also connects two-way converter circuit module, electric-controlled switch and protective circuit by system bus, forms monitoring communications path;
The utility model has overcome the defect of prior art, generator unit make micro-electrical network when can generate electricity, two-way converter circuit module as voltage source V F convertor unit just can complete black startup, thereby make the normal operation of micro-electrical network and generating power supply, thoroughly solved a black startup key technology difficult problem for micro-electrical network and generation of electricity by new energy electric power system, make generation of electricity by new energy electric power system no longer rely on diesel engine generator or other controlled energy sources carry out black startup, not only reduce investment outlay and O&M cost, and clean environment firendly more.
accompanying drawing explanation
Fig. 1 is the principle function schematic diagram of a kind of alternating current-direct current intelligent allocation of the utility model energy storage current converter.
Fig. 2 is the complementary micro-power grid application example schematic diagram of light storage.
embodiment
As examples of implementation, in conjunction with Fig. 1, a kind of alternating current-direct current intelligent allocation energy storage current converter is described, still, technology of the present utility model and scheme are not limited to the content that the present embodiment provides.
As shown in Figure 1, the utility model proposes a kind of alternating current-direct current intelligent allocation energy storage current converter, comprise: two-way converter circuit module (1), DC bus (2), batteries direct-flow input end mouth (3), control circuit module (4), electric-controlled switch and protective circuit (5), the second direct current power input port (6), converter circuit ac output end mouth (7), the second direct current power produces connectivity port (8), system power-on switch (9) and system bus (10), it is characterized in that: batteries direct-flow input end mouth (3) connects two-way converter circuit module (1) by DC bus (2), by two-way converter circuit module (1), connect converter circuit ac output end mouth (7), form the two-way change of current electrical path of energy storage,
By the second direct current power input port (6) access electric-controlled switch and protective circuit (5) by DC bus (2) and be communicated with two-way converter circuit module (1), by two-way converter circuit module (1), connect converter circuit ac output end mouth (7), form the second direct current power power supply change of current path;
By connecting the second direct current power after the second direct current power input port (6) access electric-controlled switch and protective circuit (5), produce connectivity port (8), form the second direct current power and produce connection electrical path;
Control circuit module (4) connected system starting switch (9) also connects two-way converter circuit module (1), electric-controlled switch and protective circuit (5) by system bus (10), forms monitoring communications path;
A kind of alternating current-direct current intelligent allocation of the utility model energy storage current converter, is further characterized in that: < change of current module starting resistor < the second direct current power source voltage is pressed in overdischarge.
A kind of alternating current-direct current intelligent allocation of the utility model energy storage current converter, is further characterized in that, the second direct current power source can be photovoltaic electric, wind-powered electricity generation and direct current power power supply unit.
As the complementary micro-power grid application example of light storage as shown in Figure 2, by photovoltaic array and combining inverter, form generator unit, by batteries and alternating current-direct current intelligent allocation energy storage current converter, form VF unit, micro-line voltage source, by micro-electric network power line and user load, connect in the lump the complementary micro-electrical network of light storage, different from prior art and scheme is that photovoltaic array is not to be directly connected to combining inverter, but as the second direct current power source, connect the second direct current power input port (6) of alternating current-direct current intelligent allocation energy storage current converter, the second direct current power by alternating current-direct current intelligent allocation energy storage current converter produces connectivity port (8) access grid-connected inverter again, after storage battery is crossed and is put, when photovoltaic array possesses power generation conditions, by control circuit module (4), by system bus (10), regulate and control electric-controlled switch and protective circuit (5), the second direct current power input port (6) is communicated with DC bus (2), makes two-way converter circuit module (1) complete black startup, after the normal operation of alternating current-direct current intelligent allocation energy storage current converter, by control circuit module (4), by system bus (10), regulate and control electric-controlled switch and protective circuit (5), make the second direct current power input port (6) and DC bus (2) disconnect and connect the second direct current power and produce connectivity port (8), photovoltaic array is communicated with combining inverter.
Claims (1)
1. an alternating current-direct current intelligent allocation energy storage current converter, comprise: two-way converter circuit module (1), DC bus (2), batteries direct-flow input end mouth (3), control circuit module (4), electric-controlled switch and protective circuit (5), the second direct current power input port (6), converter circuit ac output end mouth (7), the second direct current power produces connectivity port (8), system power-on switch (9) and system bus (10), it is characterized in that: batteries direct-flow input end mouth (3) connects two-way converter circuit module (1) by DC bus (2), by two-way converter circuit module (1), connect converter circuit ac output end mouth (7),
By the second direct current power input port (6) access electric-controlled switch and protective circuit (5), by DC bus (2) and be communicated with two-way converter circuit module (1), by two-way converter circuit module (1), connect converter circuit ac output end mouth (7);
By connecting the second direct current power after the second direct current power input port (6) access electric-controlled switch and protective circuit (5), produce connectivity port (8);
Control circuit module (4) connected system starting switch (9) also connects two-way converter circuit module (1), electric-controlled switch and protective circuit (5) by system bus (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320580436.3U CN203491708U (en) | 2013-09-22 | 2013-09-22 | AC-DC intelligent allocating energy-storage current commutation apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320580436.3U CN203491708U (en) | 2013-09-22 | 2013-09-22 | AC-DC intelligent allocating energy-storage current commutation apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203491708U true CN203491708U (en) | 2014-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320580436.3U Expired - Lifetime CN203491708U (en) | 2013-09-22 | 2013-09-22 | AC-DC intelligent allocating energy-storage current commutation apparatus |
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| CN (1) | CN203491708U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015149619A1 (en) * | 2014-04-01 | 2015-10-08 | 阳光电源股份有限公司 | Black-start method, energy management system and off-grid light storage micro-grid with shared alternating-current bus |
| CN109217348A (en) * | 2017-06-29 | 2019-01-15 | 周锡卫 | A kind of the black starting-up device and control method of scene power supply micro-capacitance sensor |
| CN109787345A (en) * | 2017-11-15 | 2019-05-21 | 丹佛斯移动电气化有限公司 | Work machine |
| CN115189341A (en) * | 2022-09-09 | 2022-10-14 | 国网浙江省电力有限公司电力科学研究院 | Full direct current power system |
-
2013
- 2013-09-22 CN CN201320580436.3U patent/CN203491708U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015149619A1 (en) * | 2014-04-01 | 2015-10-08 | 阳光电源股份有限公司 | Black-start method, energy management system and off-grid light storage micro-grid with shared alternating-current bus |
| CN109217348A (en) * | 2017-06-29 | 2019-01-15 | 周锡卫 | A kind of the black starting-up device and control method of scene power supply micro-capacitance sensor |
| CN109217348B (en) * | 2017-06-29 | 2024-03-08 | 周锡卫 | Control method of black start device of wind-light power supply micro-grid |
| CN109787345A (en) * | 2017-11-15 | 2019-05-21 | 丹佛斯移动电气化有限公司 | Work machine |
| CN115189341A (en) * | 2022-09-09 | 2022-10-14 | 国网浙江省电力有限公司电力科学研究院 | Full direct current power system |
| CN115189341B (en) * | 2022-09-09 | 2022-12-06 | 国网浙江省电力有限公司电力科学研究院 | Full direct current power system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170122 Address after: 100000 Beichen East Road, Chaoyang District, No. 8, building No. 1, building No. 1601, No. 1603, No. Patentee after: BEIJING TIANSHI NEW ENERGY TECHNOLOGY CO.,LTD. Address before: 100102 Chaoyang District, South Lake Road, No. 8, North building, room 2, room, No. 301 Patentee before: Zhou Xiwei |
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| TR01 | Transfer of patent right |
Effective date of registration: 20200303 Address after: 100025 A218, 2nd Floor, Building A, Shifoying Xili 12, Chaoyang District, Beijing Patentee after: Beijing Tianqi Hongyuan New Energy Technology Co.,Ltd. Address before: 100000 Beichen East Road, Chaoyang District, No. 8, building No. 1, building No. 1601, No. 1603, No. Patentee before: BEIJING TIANSHI NEW ENERGY TECHNOLOGY CO.,LTD. |
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| TR01 | Transfer of patent right | ||
| DD01 | Delivery of document by public notice |
Addressee: BEIJING TIANSHI NEW ENERGY TECHNOLOGY Co.,Ltd. Document name: Notification of Passing Examination on Formalities |
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| DD01 | Delivery of document by public notice | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140319 |
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| CX01 | Expiry of patent term |