CN102738865A - A large-capacity off-grid photovoltaic storage power generation system - Google Patents
A large-capacity off-grid photovoltaic storage power generation system Download PDFInfo
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- CN102738865A CN102738865A CN2012102065891A CN201210206589A CN102738865A CN 102738865 A CN102738865 A CN 102738865A CN 2012102065891 A CN2012102065891 A CN 2012102065891A CN 201210206589 A CN201210206589 A CN 201210206589A CN 102738865 A CN102738865 A CN 102738865A
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Abstract
The invention discloses a high-capacity off-grid type optical storage power generation system, which comprises a direct current bus, a plurality of photovoltaic assemblies, a plurality of power electronic controllers which are in one-to-one correspondence with the photovoltaic assemblies, a plurality of energy storage devices and a plurality of inverters which are in one-to-one correspondence with the loads, wherein: each photovoltaic assembly is connected with the direct current bus through a corresponding power electronic controller; each energy storage device is connected with the direct current bus respectively; and the inverters are respectively connected with the direct current bus and the corresponding loads. The invention obviously increases the spare capacity of the system and improves the reasonable power distribution of the system, thereby ensuring the continuity and stability of the power supply of the system.
Description
Technical field
The present invention relates to a kind of electricity generation system, relate in particular to a kind of big capacity from net type light storage electricity generation system.
Background technology
Along with solar photovoltaic grid-connection generating cause develops rapidly, the intermittence of photovoltaic generation self, randomness are given to be incorporated into the power networks and are brought certain influence.At present, photovoltaic generating system has apparent in view randomness and uncontrollability.Because the electric power supply and demand there are differences on time and space, need carry out control, adjusting, the distribution of electric power to existing photovoltaic generating system, thereby realize the reasonable, efficient of the energy utilized.Power conversion and storing technology are the novel energy-conserving technology, though can not be characterized by energy source, can improve the quality of power supply, improve the stability and the reliability of power supply.Therefore, how power conversion and storing technology more reasonably being applied to photovoltaic generating system is the direction that the applicant is devoted to study.
Summary of the invention
The object of the present invention is to provide a kind of big capacity from net type light storage electricity generation system, significantly increased the reserve capacity of system, improved the rational distribute power of system, thereby guaranteed the continuity and the stability of system's power supply.
The technical scheme that realizes above-mentioned purpose is:
A kind of big capacity is from net type light storage electricity generation system; Connect some loads; Said light storage electricity generation system comprise dc bus, some photovoltaic modulies, with the some one to one power electronic controllers of each photovoltaic module, some energy storage devices and with the some one to one inverters of said each load, wherein:
Said each photovoltaic module connects said dc bus through each self-corresponding power electronic controller respectively;
Said each energy storage device connects said dc bus respectively;
Said each inverter connects dc bus and corresponding load separately respectively.
Above-mentioned big capacity is from net type light storage electricity generation system, and wherein, said each inverter will be an alternating current through the dc inverter that said dc bus transmission obtains respectively, supply with corresponding load separately.
Above-mentioned big capacity is from net type light storage electricity generation system, and wherein, said energy storage device is an energy storage battery.
The invention has the beneficial effects as follows: among the present invention; Big capacity energy storage device has significantly increased the reserve capacity of system; Thereby greatly improve the rational distribute power of system and (especially avoided the long-distance transmissions of big capacity reactive power; Basically realized the in-situ balancing of reactive power in each zone) and strong voltage support, guarantee the continuity and the stability of system's power supply, thereby guaranteed the safety and stability and the economical operation of electrical network.
Description of drawings
Fig. 1 is the structure chart of big capacity of the present invention from net type light storage electricity generation system.
Embodiment
Below in conjunction with accompanying drawing the present invention is described further.
See also Fig. 1; Big capacity of the present invention is from net type light storage electricity generation system; Connect some loads 200; Said light storage electricity generation system comprise dc bus 1, some photovoltaic modulies 2, with the some one to one power electronic controller of each photovoltaic module 23, some energy storage devices 4 and with the some one to one inverters 5 of said each load 200, wherein:
Each photovoltaic module 2 connects dc bus 1 through each self-corresponding power electronic controller 3 respectively;
Each energy storage device 4 connects dc bus 1 respectively, and in the present embodiment, energy storage device 4 is an energy storage battery;
Each inverter 5 connects dc bus 1 and corresponding load 200 separately respectively.
Each photovoltaic module 2 absorbs solar energy and is converted into electric energy, directly is transferred to each inverter 5 through each self-corresponding power electronic controller 3 and dc bus 1, perhaps is transferred to each energy storage device 4, and electrical power storage is got up, and exports when needing again; Each inverter 5 will be an alternating current through the dc inverter that dc bus 1 transmission obtains respectively, supply with corresponding load 200 separately.
The present invention has greatly improved the rational distribute power of system, and has peak-valley difference between elimination round the clock, and level and smooth load improves system's operation stability, adjusts frequency and compensate functions such as load fluctuation.
Above embodiment only supplies to explain the present invention's usefulness; But not limitation of the present invention; The technical staff in relevant technologies field without departing from the present invention, can also make various conversion or modification; Therefore all technical schemes that are equal to also should belong to category of the present invention, should be limited each claim.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102065891A CN102738865A (en) | 2012-06-21 | 2012-06-21 | A large-capacity off-grid photovoltaic storage power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102065891A CN102738865A (en) | 2012-06-21 | 2012-06-21 | A large-capacity off-grid photovoltaic storage power generation system |
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| Publication Number | Publication Date |
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| CN102738865A true CN102738865A (en) | 2012-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012102065891A Pending CN102738865A (en) | 2012-06-21 | 2012-06-21 | A large-capacity off-grid photovoltaic storage power generation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107681762A (en) * | 2017-09-30 | 2018-02-09 | 北京航空航天大学 | A kind of stratosphere aerostatics electric power-feeding structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1650847A2 (en) * | 2000-09-07 | 2006-04-26 | Aloys Wobben | Island network and method for operation of an island network |
| CN201562980U (en) * | 2009-10-29 | 2010-08-25 | 江苏金敏能源股份有限公司 | Small off-net solar power station system |
| CN102097975A (en) * | 2009-12-23 | 2011-06-15 | 珠海兴业新能源科技有限公司 | Complementary solar power generation system |
| CN202712893U (en) * | 2012-06-21 | 2013-01-30 | 上海市电力公司 | A large-capacity off-grid photovoltaic storage power generation system |
-
2012
- 2012-06-21 CN CN2012102065891A patent/CN102738865A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1650847A2 (en) * | 2000-09-07 | 2006-04-26 | Aloys Wobben | Island network and method for operation of an island network |
| CN201562980U (en) * | 2009-10-29 | 2010-08-25 | 江苏金敏能源股份有限公司 | Small off-net solar power station system |
| CN102097975A (en) * | 2009-12-23 | 2011-06-15 | 珠海兴业新能源科技有限公司 | Complementary solar power generation system |
| CN202712893U (en) * | 2012-06-21 | 2013-01-30 | 上海市电力公司 | A large-capacity off-grid photovoltaic storage power generation system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107681762A (en) * | 2017-09-30 | 2018-02-09 | 北京航空航天大学 | A kind of stratosphere aerostatics electric power-feeding structure |
| CN107681762B (en) * | 2017-09-30 | 2021-04-30 | 北京航空航天大学 | Stratospheric aerostat power supply structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20121011 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20121011 Address after: 200122 Shanghai City, Pudong New Area source deep road, No. 1122 Applicant after: Shanghai Electric Power Corporation Applicant after: State Grid Corporation of China Address before: 200122 Shanghai City, Pudong New Area source deep road, No. 1122 Applicant before: Shanghai Electric Power Corporation |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121017 |