CN201928036U - Schedulable-type photovoltaic power-generating grid-connected power station - Google Patents
Schedulable-type photovoltaic power-generating grid-connected power station Download PDFInfo
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- CN201928036U CN201928036U CN2010206860422U CN201020686042U CN201928036U CN 201928036 U CN201928036 U CN 201928036U CN 2010206860422 U CN2010206860422 U CN 2010206860422U CN 201020686042 U CN201020686042 U CN 201020686042U CN 201928036 U CN201928036 U CN 201928036U
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- microprocessor
- inverter
- switch
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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
Abstract
The utility model relates to a schedulable-type photovoltaic power-generating grid-connected power station, which comprises a photovoltaic-battery assembly (1), a microprocessor (2), a storage-battery control circuit (3), a storage-battery unit (4), an inverting device (5), a photosensitive tracker (6) and a motor control system (7), and has the key points that the schedulable-type photovoltaic power-generating grid-connected power station also comprises a maximum-power tracking module (11), wherein the input of the maximum-power tracking module (11) is connected to the photovoltaic-battery assembly (1), the output of the maximum-power tracking module (11) is connected to the microprocessor (2), meanwhile, the storage-battery control circuit (3) comprises a two-way selecting switch (301), and the output of the two-way selecting switch (301) is respectively connected to the inverting device (5) and the storage-battery unit (4). Through the schedulable-type photovoltaic power-generating grid-connected power station, the problems of lower operating efficiency of the prior art and large loss of the storage-battery unit (4) are effectively solved.
Description
Technical field
The utility model relate to a kind of can scheduling type photovoltaic power generation grid-connecting power station, it belongs to the field of photovoltaic power generation class.
Background technology
Serious day by day along with global energy and problem of environmental pollution seeks the cardinal task that the clean energy resource that substitutes has become the world today, clean energy resource known today, first-elected solar energy.Photovoltaic generation more and more receives people's approval and concern for this reason, and the particularly the sort of photovoltaic generation power station that can generate electricity by way of merging two or more grid systems has obtained significant progress in recent years.The photovoltaic power generation grid-connecting power station totally is divided into the photovoltaic power generation grid-connecting power station and the schedulable photovoltaic power generation grid-connecting power station of non-scheduling, and both difference is that mainly the former is not with batteries.Existing can scheduling type photovoltaic power generation grid-connecting power station be that CN200920129423.6 is disclosed, as shown in Figure 1, comprise photovoltaic cell component (1), microprocessor control circuit (2), rechargeable battery control circuit (3), secondary battery unit (4), inverter (5), photosensitive tracker (6), electric machine control system (7), described photovoltaic cell component (1) is connected with the current input terminal of rechargeable battery control circuit (3); Described microprocessor control circuit (2) connects and outputs control signals to electric machine control system (7), rechargeable battery control circuit (3), inverter (5), and gathers the signal that receives photosensitive tracker (6); Described rechargeable battery control circuit (3), its current input terminal is connected with photovoltaic cell component (1), and current output terminal is connected with secondary battery unit (4), and is controlled by microprocessor control circuit (2); Described secondary battery unit (4) connects and is controlled by rechargeable battery control circuit (3), and its output is connected with the direct-flow input end of inverter (5); Described inverter (5), its direct-flow input end are connected to secondary battery unit (4), and control end connects microprocessor control circuit (2), and ac output end is connected with AC load (10) through AC distribution device (8), and its bypass input is connected with utility grid (9); Described photosensitive tracker (6) is installed on photovoltaic cell component (1) surface, is electrically connected on microprocessor control circuit (2); Described electric machine control system (7) connects and is controlled by microprocessor control circuit (2), drives the rotation of photovoltaic cell component (1) simultaneously.
The disclosed this problem that can scheduling type photovoltaic power generation grid-connecting power station exists of CN200920129423.6 is; disappearance is to the tracking of the possible maximum power point of photovoltaic cell component (1); the power that such disappearance has directly caused the photovoltaic power generation grid-connecting power station to be carried to external electrical network does not reach the maximum power of photovoltaic cell component (1) work; in addition; CN200920129423.6 disclosed this can scheduling type photovoltaic power generation grid-connecting power station; lack necessary isolation and safeguard measure between utility grid and photovoltaic power generation grid-connecting power station; when having a power failure, utility grid forms island effect very easily; the formation accident; moreover; the input power supply of inverter (5) is to derive from secondary battery unit (4); the loss and the reduction in secondary battery unit (4) life-span of efficient have been caused like this; the above has proved absolutely that prior art has further improved necessity.
Summary of the invention
Of the present utility model a kind of can scheduling type photovoltaic power generation grid-connecting power station, comprise photovoltaic cell component (1), microprocessor (2), rechargeable battery control circuit (3), secondary battery unit (4), inverter (5), photosensitive tracker (6), electric machine control system (7), the current output terminal of described photovoltaic cell component (1) is connected with the current input terminal of rechargeable battery control circuit (3); Described microprocessor (2) connects and outputs control signals to electric machine control system (7), rechargeable battery control circuit (3), inverter (5), and gathers the signal that receives photosensitive tracker (6) by connecting; The ac output end of described inverter (5) is connected with AC load (10) through AC distribution device (8), described electric machine control system (7) drives the rotation of photovoltaic cell component (1), it is characterized in that also comprising a maximal power tracing module (11), the input of described maximal power tracing module (11) is connected to photovoltaic cell component (1), output is connected to microprocessor (2), described rechargeable battery control circuit (3) comprises a two-way selector switch (301) simultaneously, and the output of two-way choice switch (301) is connected to inverter (5) and secondary battery unit (4) respectively.
Of the present utility model this can scheduling type photovoltaic power generation grid-connecting power station, owing in system, increased by a maximal power tracing module (11), the electric energy situation that photovoltaic cell component (1) sends is mainly followed the tracks of and detected to maximal power tracing module (11), and tracking results exported to microprocessor (2), microprocessor (2) can be controlled the power output of inverter (5) according to this result, has so just improved described operational efficiency that can scheduling type photovoltaic power generation grid-connecting power station greatly.
Of the present utility model this can scheduling type photovoltaic power generation grid-connecting power station, because described rechargeable battery control circuit (3) comprises a two-way selector switch (301), the output of described two-way choice switch (301) simultaneously is connected to inverter (5) and secondary battery unit (4) respectively, like this, no longer need by secondary battery unit (4) at the electric current that is transported to inverter (5) from photovoltaic cell component (1), what obviously this will reduce secondary battery unit (4) discharges and recharges number of times and frequency, thereby promoted the life-span of secondary battery unit (4), reduce operating cost, simultaneously, do not needing by inverter (5) to local AC load (10) power supply and do not need to utility grid (9) when transmitting electric power, microprocessor (2) control rechargeable battery control circuit (3) is directly sent the electric power that photovoltaic cell component (1) sends into secondary battery unit (4).In sum, the purpose of this utility model obviously is achieved.
As further improvement; the utility model also comprises a protection power supply unit (12); described protection power supply unit (12) is situated between and is located between utility grid (9) and the inverter (5); described protection power supply unit (12) comprises the tandem tap unit (1201) that two switches are connected mutually and formed at least; two switches in the described tandem tap unit (1201); be controlled by utility grid (9) and microprocessor (2) respectively; the switch that is controlled by utility grid (9); when utility grid (9) has a power failure owing to decompression disconnects; like this; in the time of can guaranteeing that utility grid (2) has a power failure; the switch element (1201) of the series connection of protection power supply unit (12) is in off-state; thereby avoid the generation of " island effect ", reach the purpose of effectively avoiding accident.
A switch in the tandem tap unit (1201) of described protection power supply unit (12) is controlled by microprocessor (2); then be for guarantee described can scheduling type photovoltaic power generation grid-connecting power station to the controllability that utility grid (9) transmits electric power, guarantee that the electric weight that only sends at photovoltaic cell component (1) satisfies this locality and needs under the situation more than needed and just transmit electric power to utility grid (9).
As further improvement, the utility model also comprises a switch module (13), described switch module (13) connects and is controlled by microprocessor (2), and described switch module (13) is situated between and is located between inverter (5) and the secondary battery unit (4), the purpose of She Zhiing is that the behavior that secondary battery unit (4) is outwards transmitted electric power becomes controlled like this, make it to become a kind of behavior that just takes place under certain condition, such as secondary battery unit (4) only in self electric energy stored abundance, simultaneously under the situation of the electric weight deficiency sent of photovoltaic cell component (1) just to transmitting electric power outward.
As further improvement; protection power supply unit of the present utility model (12) comprises the first reverse switch (1202) and the second reverse switch (1203); the input of the described first reverse switch (1202) and the second reverse switch (1203) is connected to utility grid (9); output is connected to AC distribution device (8) and respectively and exports the rectification unit (14) that is connected to secondary battery unit (4); the control end of the described first reverse switch (1202) and the second reverse switch (1203) all is connected to microprocessor (2), is switched on or switched off according to the instruction of microprocessor (2).The purpose of She Zhiing is the electric weight deficiency sent at photovoltaic cell component (1) like this, when the electric weight of secondary battery unit (4) stored is also not enough simultaneously, by utility grid by AC distribution device (8) to AC load (10) and secondary battery unit (4) power supply.
As further improving, there is interlocked relationship in described tandem tap unit (1201) with the first reverse switch (1202) and the second reverse switch (1203), can guarantee that like this they can not connect simultaneously, to prevent the generation of accident.
Description of drawings
Fig. 1 be CN200920129423.6 disclosed a kind of can scheduling type photovoltaic power generation grid-connecting power station structural representation.
Fig. 2 is that a kind of that the utility model preferred embodiment provides can scheduling type photovoltaic power generation grid-connecting power station structural representation.
Among each figure; 1 is photovoltaic cell component; 2 is microprocessor; 3 is rechargeable battery control circuit; 301 are the two-way choice switch; 4 is secondary battery unit; 5 is inverter; 6 is photosensitive tracker; 7 is electric machine control system; 8 is the AC distribution device; 9 is utility grid; 10 is AC load; 11 is the maximal power tracing module; 12 are the protection power supply unit; 1201 is the tandem tap unit; 1202 is the first reverse switch; 1203 is the second reverse switch; 13 is switch module; band arrow solid line is the power channel line among the figure; the setting-out of band arrow single-point is a control signal wire, and the two-dot chain line of band arrow is a status signal lines.
Embodiment
Below with reference to the utility model preferred embodiment provide a kind of can scheduling type photovoltaic power generation grid-connecting power station and accompanying drawing the utility model is described in further detail.
The utility model preferred embodiment provides a kind of can scheduling type photovoltaic power generation grid-connecting power station, as shown in Figure 2, comprise photovoltaic cell component 1, microprocessor 2, rechargeable battery control circuit 3, secondary battery unit 4, inverter 5, photosensitive tracker 6, electric machine control system 7, the current output terminal of described photovoltaic cell component 1 is connected with the current input terminal of rechargeable battery control circuit 3; Described microprocessor control circuit 2 connects and outputs control signals to electric machine control system 7, rechargeable battery control circuit 3, inverter 5, and gathers the signal that receives photosensitive tracker 6 by connecting; The ac output end of described inverter 5 is connected with AC load 10 through AC distribution device 8, described electric machine control system drives the rotation of photovoltaic cell component 1, in this preferred embodiment, also comprise a maximal power tracing module 11, the input of described maximal power tracing module 11 is connected to photovoltaic cell component 1, output is connected to microprocessor 2, described rechargeable battery control circuit 3 comprises a two-way selector switch 301 simultaneously, and the output of two-way choice switch 301 is connected to inverter 5 and secondary battery unit 4 respectively.
In this preferred embodiment; the utility model also comprises a protection power supply unit 12; described protection power supply unit 12 is situated between and is located between utility grid 9 and the inverter 5; described protection power supply unit 12 comprises the tandem tap unit 1201 that two switches are connected mutually and formed; two switches in the described tandem tap unit 1201 are controlled by utility grid 9 and microprocessor 2 respectively.
In this preferred embodiment; protection power supply unit 12 of the present utility model also comprises the first reverse switch 1202 and the second reverse switch 1203; the input of the described first reverse switch 1202 and the second reverse switch 1203 is connected to utility grid 9; output is connected to AC distribution device 8 and respectively and exports the rectification unit 14 that is connected to secondary battery unit 4; the control end of the described first reverse switch 1202 and the second reverse switch 1203 all is connected to microprocessor 2, is switched on or switched off according to the instruction of microprocessor 2.
In this preferred embodiment, there are interlocked relationship in the switch element 1201 of described series connection and the first reverse switch 1202 and the second reverse switch 1203.
In this preferred embodiment, the input of described maximal power tracing module 11 also is connected to secondary battery unit 4, output is connected to microprocessor 2, help like this at secondary battery unit 4 when inverter 5 is sent electric power, also can follow the tracks of and detect the electric energy situation of secondary battery unit 4 by maximal power tracing module 11, and tracking results exported to microprocessor 2, microprocessor 2 can be controlled the power output of inverter 5 according to this result, thereby improves operational efficiency.
In sum, of the present utility model a kind of can scheduling type photovoltaic power generation grid-connecting power station, comprise photovoltaic cell component (1), microprocessor (2), rechargeable battery control circuit (3), secondary battery unit (4), inverter (5), Deng, its main points are also to comprise a maximal power tracing module (11), the input of described maximal power tracing module (11) is connected to photovoltaic cell component (1), output is connected to microprocessor (2), described rechargeable battery control circuit (3) comprises a two-way selector switch (301) simultaneously, the output of two-way choice switch (301) is connected to inverter (5) and secondary battery unit (4) respectively, it is not high that the utility model has effectively overcome the prior art operational efficiency, the big problem of secondary battery unit (4) loss.
The above only is an embodiment of the present utility model.But the utility model protection range is not limited thereto.Any those skilled in the art of being familiar with are in the technical scope that the utility model discloses; the variation that can expect easily or replacement; all should be encompassed within the protection range of the present utility model, therefore, protection range of the present utility model should be as the criterion with the protection range of claim.
Claims (6)
- One kind can scheduling type photovoltaic power generation grid-connecting power station, comprise photovoltaic cell component (1), microprocessor (2), rechargeable battery control circuit (3), secondary battery unit (4), inverter (5), photosensitive tracker (6), electric machine control system (7), the current output terminal of described photovoltaic cell component (1) is connected with the current input terminal of rechargeable battery control circuit (3); Described microprocessor (2) connects and outputs control signals to electric machine control system (7), rechargeable battery control circuit (3), inverter (5), and gathers the signal that receives photosensitive tracker (6) by connecting; The ac output end of described inverter (5) is connected with AC load (10) through AC distribution device (8), described electric machine control system (7) drives the rotation of photovoltaic cell component (1), it is characterized in that also comprising a maximal power tracing module (11), the input of described maximal power tracing module (11) is connected to photovoltaic cell component (1), output is connected to microprocessor (2), described rechargeable battery control circuit (3) comprises a two-way selector switch (301) simultaneously, and the output of two-way choice switch (301) is connected to inverter (5) and secondary battery unit (4) respectively.
- 2. according to claim 1 a kind of can scheduling type photovoltaic power generation grid-connecting power station; it is characterized in that also comprising a protection power supply unit (12); described protection power supply unit (12) is situated between and is located between utility grid (9) and the inverter (5); described protection power supply unit (12) comprises the tandem tap unit (1201) that two switches are connected mutually and formed at least; two switches in the described tandem tap unit (1201) are controlled by utility grid (9) and microprocessor (2) respectively.
- 3. according to claim 1 a kind of can scheduling type photovoltaic power generation grid-connecting power station, it is characterized in that also comprising a switch module (13), described switch module (13) connects and is controlled by microprocessor (2), and described switch module (13) Jie is located between inverter (5) and the secondary battery unit (4).
- 4. according to claim 2 a kind of can scheduling type photovoltaic power generation grid-connecting power station; it is characterized in that described protection power supply unit (12) also comprises the first reverse switch (1202) and the second reverse switch (1203); the input of the described first reverse switch (1202) and the second reverse switch (1203) is connected to utility grid (9); output is connected to AC distribution device (8) and respectively and exports the rectification unit (14) that is connected to secondary battery unit (4), and the control end of the described first reverse switch (1202) and the second reverse switch (1203) all is connected to microprocessor (2).
- 5. according to claim 4 a kind of can scheduling type photovoltaic power generation grid-connecting power station, it is characterized in that there are interlocked relationship in tandem tap unit (1201) and the first reverse switch (1202) and the second reverse switch (1203).
- 6. according to claim 1 a kind of can scheduling type photovoltaic power generation grid-connecting power station, it is characterized in that the input of described maximal power tracing module (11) also is connected to secondary battery unit (4), output is connected to microprocessor (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206860422U CN201928036U (en) | 2010-12-29 | 2010-12-29 | Schedulable-type photovoltaic power-generating grid-connected power station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206860422U CN201928036U (en) | 2010-12-29 | 2010-12-29 | Schedulable-type photovoltaic power-generating grid-connected power station |
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| CN201928036U true CN201928036U (en) | 2011-08-10 |
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| CN2010206860422U Expired - Fee Related CN201928036U (en) | 2010-12-29 | 2010-12-29 | Schedulable-type photovoltaic power-generating grid-connected power station |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102957331A (en) * | 2012-11-23 | 2013-03-06 | 郑州计量节能检测中心 | Multifunctional inverter |
| CN108039732A (en) * | 2017-12-29 | 2018-05-15 | 南京熊猫电子股份有限公司 | A kind of and the one-piece type photovoltaic energy-storage system power supply of off-network and its control method |
-
2010
- 2010-12-29 CN CN2010206860422U patent/CN201928036U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102957331A (en) * | 2012-11-23 | 2013-03-06 | 郑州计量节能检测中心 | Multifunctional inverter |
| CN108039732A (en) * | 2017-12-29 | 2018-05-15 | 南京熊猫电子股份有限公司 | A kind of and the one-piece type photovoltaic energy-storage system power supply of off-network and its control method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110810 Termination date: 20171229 |