CN201608543U - Photovoltaic power supply system - Google Patents
Photovoltaic power supply system Download PDFInfo
- Publication number
- CN201608543U CN201608543U CN2010201485929U CN201020148592U CN201608543U CN 201608543 U CN201608543 U CN 201608543U CN 2010201485929 U CN2010201485929 U CN 2010201485929U CN 201020148592 U CN201020148592 U CN 201020148592U CN 201608543 U CN201608543 U CN 201608543U
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- Prior art keywords
- photovoltaic
- power supply
- photovoltaic power
- utility network
- transformer
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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 discloses a photovoltaic power supply system which includes a photovoltaic component and also includes a control switch, a transformer and an electric quality transmission line; wherein the control switch is connected with the photovoltaic component for converting the power supply way of the photovoltaic component; the transformer is connected with the output lead of the photovoltaic component for boosting the low voltage power outputted by the photovoltaic component to a voltage needed by users, or to a voltage needed by the power generation system of a public power network; and the electric quality transmission line is used for feeding the high voltage power boosted by the transformer to terminal user equipment or the power generation system of the public power network. The photovoltaic power supply system can improve the utilization rate of photovoltaic power generation.
Description
Technical field
The utility model relates to the solar energy generation technology field, particularly relates to a kind of photovoltaic power supply system.
Background technology
Photovoltaic generation is to utilize solar energy and semiconductor device to absorb the solar radiation energy effectively, and makes it to be transformed into the direct generation of electricity mode of electric energy, is the main flow of solar power generation.Its major advantage comprises following various aspects: can effectively utilize building roof and curtain wall, need not the land occupation resource; But use in original place generating, original place, reduces the line loss that electric power is carried; Various colourama photovoltaic assemblies can replace or save outer exterior material (as glass curtain wall etc.) peak times of power consumption power supply by day, thereby releive the peak power demand; After being equipped with storage battery, can also satisfy the requirement of not cutting off the power supply of safety utilization of electric power facility; The solar power generation plate array directly absorbs solar energy, reduces the temperature on metope and roof, alleviates the building air conditioning load.
Because therefore the above-mentioned various advantages of photovoltaic generation has application promise in clinical practice.But, present photovoltaic generation industry still is in the starting stage, and because photovoltaic generation is subjected to round the clock easily, the influence of weather, season etc., all is to carry out dispersedly usually therefore, be mainly used in every family at present and generate electricity separately, electric energy is not utilized fully.As seen, the utilance that how to improve photovoltaic generation is to need the problem that solves at present.
The utility model content
The utility model provides a kind of photovoltaic power supply system, can effectively realize the conveying of being incorporated into the power networks of photovoltaic generation, the integration control that electricity consumption is used, and improves the utilance of photovoltaic generation.
The utility model provides following scheme:
A kind of photovoltaic power supply system comprises photovoltaic module, also comprises: control switch, transformer and electric weight transmission line, wherein:
Described control switch is connected with described photovoltaic module, is used for the supply power mode of conversion photovoltaic module;
Described transformer is connected with the output lead of described photovoltaic module, is used for the supply power mode according to photovoltaic module, and the low tension that photovoltaic module is exported boosts to user's required voltage, or is transported to the electricity generation system required voltage of utility network;
Described electric weight transmission line, the high-tension electricity after being used for described transformer boosted is transported to the electricity generation system of end user device or utility network.
Preferably, also comprise:
First automatic metering equipment is connected between described transformer and the described end user device, is used for user's use amount of photovoltaic generation is counted.
Preferably, described first automatic metering equipment is installed on indoor.
Preferably, also comprise:
Second automatic metering equipment is connected between the electricity generation system of described transformer and described utility network, and the conveying capacity that is used for photovoltaic generation is transported to the utility network electricity generation system is counted.
Preferably, described second automatic metering equipment is installed on indoor.
Preferably, the conductor material of described electric weight transmission line is a Pot metal.
Preferably, described control switch is positioned at indoor.
Preferably, the electricity generation system of described utility network also is used for, and end user device is powered.
Preferably, also comprise:
The 3rd automatic metering equipment is connected between the electricity generation system and described end user device of described utility network, is used for using the power generation system electric quantity of described utility network to count to end user device.
Preferably, described second automatic metering equipment is installed on indoor.
According to the specific embodiment that the utility model provides, the utility model discloses following technique effect:
The utility model is owing to have control switch and transformer, can change the supply power mode of photovoltaic module by control switch, and directly will be according to the supply power mode of photovoltaic module by transformer, the low tension of photovoltaic module output is boosted to user's required voltage, or be transferred to the electrical network required voltage, so that offering the user uses, perhaps be transported to electrical network, the realization conveying of being incorporated into the power networks, as seen, the utility model can effectively be realized the conveying of being incorporated into the power networks of photovoltaic generation, the integration control that electricity consumption is used makes supply power mode to select flexibly, and no longer be confined to a certain, thereby improve the utilance of photovoltaic generation.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use among the embodiment below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic diagram of the first photovoltaic power supply system that provides of the utility model;
Fig. 2 is the schematic diagram of the second photovoltaic power supply system that provides of the utility model;
Fig. 3 is the schematic diagram of the 3rd photovoltaic power supply system that provides of the utility model;
Fig. 4 is the schematic diagram of the 4th photovoltaic power supply system that provides of the utility model.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skills obtained belongs to the scope that the utility model is protected.
Embodiment one
Referring to Fig. 1, in this embodiment one, the photovoltaic power supply system that the utility model provides comprises photovoltaic module 11, control switch 12, transformer 13 and electric weight transmission line 14, wherein, the major function of photovoltaic module 11 is to be electric energy with solar energy converting, this function is identical with traditional photovoltaic module, difference is, also comprise control switch 12 in the electric power system of the present utility model, can change the supply power mode of photovoltaic module by this control switch 12, in other words, photovoltaic module 11 can adopt different supply power modes according to control switch 12.Supply power mode described herein comprises for the user to be used (from the net generating) or is transported to utility network (generating electricity by way of merging two or more grid systems).That is, in the utility model, the supply power mode of photovoltaic module 11 can not be fixed in a certain, but can be according to the control of control switch 12 and conversion neatly.
Wherein, control switch 12 can for example, when the needs end user device is worked, then be transformed to the supply power mode of photovoltaic module 11 to end user device by control switch 12 and power by user's manually control as required; After end user device quits work, can the supply power mode of photovoltaic module 11 be transformed to by control switch 12 again and be transported to utility network.And that traditional photovoltaic power supply system all is mounted in usually is outdoor, if control switch 12 also is installed in outdoor, makes troubles (user may need to climb to the operation that the conversion supply power mode just can be finished in the roof) obviously can for user's operation; Therefore, user's operation for convenience, control switch 12 can be installed on indoor, in other words, indoor be the supply power mode of convertible photovoltaic module 11.
Output lead place at photovoltaic module 11 is connected with transformer 13, because what photovoltaic module obtained is generally low tension, this voltage can't satisfy the user demand of subscriber equipment, can't satisfy the delivery requirements when being transported to utility network more, therefore, the electric energy that wants photovoltaic module is obtained is used effectively, should carry out boost operations.The effect of this transformer 13 is exactly in order to realize this boost operations.
Because the supply power mode of photovoltaic module can conversion, and end user device to the requirement of voltage when being transported to utility network to voltage require different, as, the end user device required voltage is relatively low, be generally 220V or 110V etc., and when being transported to utility network, the conveying of electric current often causes causing loss because of the circuit heating, so when carrying, need boosted voltage, allow electric current diminish to reduce the heating loss.Promptly in order to reduce the loss of electric weight in course of conveying, required voltage is higher relatively, usually be at least 50KV, (the high more electric current of same power voltage is more little also may to need 500KV or 1000KV even higher voltage, the little loss on the line of electric current is little), therefore, the boosting mode of transformer 13 neither be changeless, but can change according to the difference of supply power mode.Concrete, supply power mode that can be current according to photovoltaic module 11 boosts to user's required voltage with the low tension of photovoltaic module 11 outputs, or is transported to the utility network required voltage.
Wherein, when needs were transported to utility network, required voltage was very high, therefore, can adopt the mode (not shown) of a plurality of transformers series connection, was transported to the utility network required voltage so that the low tension of photovoltaic module 11 outputs boosted to.
Can obtain voltage required under the various supply power modes by transformer 13, then, just can electric weight be transported to end user device, perhaps utility network by electric weight transmission line 14.The conductor material of electric weight transmission line 14 can be Pot metal, and this material has characteristics such as conductance height, resistance is little, line loss is low, can effectively reduce the loss in the electric weight transmission course.
As seen, the electric power system that the utility model provides can effectively realize the integration control that the conveying of being incorporated into the power networks, electricity consumption of photovoltaic generation are used, and makes supply power mode to select flexibly, and no longer be confined to a certain, thereby improve the utilance of photovoltaic generation.
For example, daytime, photovoltaic battery panel can operate as normal, and the photovoltaic generation amount can be preferably the end user device power supply; Simultaneously, the unnecessary electric weight that the photovoltaic generation amount satisfies behind the end user device can be transported to shared electrical network, and need not be stored in the storage battery again; When night, photovoltaic battery panel did not generate electricity, then can use the electric weight of utility network to satisfy the needs (referring to Fig. 1, from the electricity generation system of utility network to also having electric weight transmission line 14 end user device) of end user device.
In addition,, therefore exempt the configuration storage battery, saved the process of batteries to store energy and release, can make full use of the electric power that sun the subject of knowledge and the object of knowledge sends, reduce energy loss, reduce system cost owing to directly electric energy is imported utility network.Grid-connected system can walk abreast and use civil power and the regenerative resource power supply as local AC load, reduces the load short of electricity rate of whole system.In addition, utilize solar energy source to generate electricity by way of merging two or more grid systems and to play the peak regulation effect to utility network.
Embodiment two
Referring to Fig. 2, in the photovoltaic power supply system that this embodiment two provides, can also comprise first automatic metering equipment 15, this first automatic metering equipment 15 is connected between transformer 13 and the described end user device, be used for user's use amount of photovoltaic generation is counted, the user can clearly understand the power consumption information that photovoltaic generation is used for end user device by the count results of these first automatic metering equipment, 15 demonstrations like this.
In addition, referring to Fig. 3, in the photovoltaic power supply system that this embodiment two provides, can also comprise second automatic metering equipment 16, this second automatic metering equipment 16 is connected between transformer 13 and the utility network, and the conveying capacity that is used for photovoltaic generation is transported to utility network is counted.Similarly, the user can clearly understand the conveying capacity information that photovoltaic generation is transported to the utility network electricity generation system by the count results of these second automatic metering equipment, 16 demonstrations.
Simultaneously, for the electric weight that is transported to the utility network electricity generation system, relevant department may give certain generating expense, makes the user obtain economic benefit, therefore, by the count results that second automatic metering equipment 16 shows, can also be convenient to charge.
In addition, as mentioned before, when photovoltaic module can't provide electric weight, the electricity generation system of utility network can be powered to end user device, therefore, referring to Fig. 4, can also comprise in this system: the 3rd automatic metering equipment 17, the 3rd automatic metering equipment 17 is connected between the electricity generation system and described end user device of described utility network, is used for using the electric weight of the electricity generation system of described utility network to count to end user device.
Because subscriber equipment needs to pay when using the electric weight of electricity generation system of described utility network, therefore, by the 3rd automatic metering equipment 17 count results, the user also can in time understand the expense that produces in this process.
Count results that above-mentioned first automatic metering equipment 15, second automatic metering equipment 16, the 3rd automatic metering equipment 17 provide provides to the user and sees, and is therefore similar with control switch 12, also can be installed on indoor, with user-friendly.In addition, above-mentioned each automatic metering equipment may be exist simultaneously with system in, repeat no more here.
In a word, in the utility model, the photovoltaic low tension is boosted to demand voltage by transformer, can support the domestic consumer to use the electricity generation system that also can be transported to utility network, and,, therefore can reduce the loss of electric weight in course of conveying owing to before carrying, boost.In addition, automatic metering equipment can have display unit, electricity generation system with photovoltaic generation, utility network is connected respectively, utilize this equipment can be clear the demonstration electric weight carry, operating position, and, control switch and automatic metering equipment can be installed on indoor, may command and timely conveying, the user's operating position of understanding photovoltaic generation.In addition, the conductor material of electric weight transmission line is selected Pot metal for use, and resistance is little, conductance is high, line loss is low owing to have, and therefore can effectively reduce the loss in the electric weight course of conveying.
Need to prove, in this article, relational terms such as first and second grades only is used for an entity or operation are made a distinction with another entity or operation, and not necessarily requires or hint and have the relation of any this reality or in proper order between these entities or the operation.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby make and comprise that process, method, article or the equipment of a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or also be included as this process, method, article or equipment intrinsic key element.Do not having under the situation of more restrictions, the key element that limits by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
More than to a kind of photovoltaic power supply provided by the utility model system, be described in detail, used specific case herein principle of the present utility model and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, part in specific embodiments and applications all can change.In sum, this description should not be construed as restriction of the present utility model.
Claims (10)
1. a photovoltaic power supply system comprises photovoltaic module, it is characterized in that, also comprises: control switch, transformer and electric weight transmission line, wherein:
Described control switch is connected with described photovoltaic module, is used for the supply power mode of conversion photovoltaic module;
Described transformer is connected with the output lead of described photovoltaic module, is used for the supply power mode according to photovoltaic module, and the low tension that photovoltaic module is exported boosts to user's required voltage, or is transported to the electricity generation system required voltage of utility network;
Described electric weight transmission line, the high-tension electricity after being used for described transformer boosted is transported to the electricity generation system of end user device or utility network.
2. photovoltaic power supply according to claim 1 system is characterized in that, also comprises:
First automatic metering equipment is connected between described transformer and the described end user device, is used for user's use amount of photovoltaic generation is counted.
3. photovoltaic power supply according to claim 2 system is characterized in that described first automatic metering equipment is installed on indoor.
4. photovoltaic power supply according to claim 1 and 2 system is characterized in that, also comprises:
Second automatic metering equipment is connected between the electricity generation system of described transformer and described utility network, and the conveying capacity that is used for photovoltaic generation is transported to the utility network electricity generation system is counted.
5. photovoltaic power supply according to claim 4 system is characterized in that described second automatic metering equipment is installed on indoor.
6. photovoltaic power supply according to claim 1 and 2 system is characterized in that the conductor material of described electric weight transmission line is a Pot metal.
7. photovoltaic power supply according to claim 1 and 2 system is characterized in that described control switch is positioned at indoor.
8. photovoltaic power supply according to claim 1 and 2 system is characterized in that the electricity generation system of described utility network also is used for, and end user device is powered.
9. photovoltaic power supply according to claim 8 system is characterized in that, also comprises:
The 3rd automatic metering equipment is connected between the electricity generation system and described end user device of described utility network, is used for using the power generation system electric quantity of described utility network to count to end user device.
10. photovoltaic power supply according to claim 9 system is characterized in that described second automatic metering equipment is installed on indoor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201485929U CN201608543U (en) | 2010-03-17 | 2010-03-17 | Photovoltaic power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201485929U CN201608543U (en) | 2010-03-17 | 2010-03-17 | Photovoltaic power supply system |
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| Publication Number | Publication Date |
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| CN201608543U true CN201608543U (en) | 2010-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010201485929U Expired - Fee Related CN201608543U (en) | 2010-03-17 | 2010-03-17 | Photovoltaic power supply system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104221243A (en) * | 2012-03-01 | 2014-12-17 | 西斯维尔科技有限公司 | Method and apparatus for managing electric energy produced locally for self-consumption and distributed to multiple users belonging to one or more communities of users |
| CN104776536A (en) * | 2015-05-04 | 2015-07-15 | 珠海格力电器股份有限公司 | Photovoltaic air conditioner system |
-
2010
- 2010-03-17 CN CN2010201485929U patent/CN201608543U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104221243A (en) * | 2012-03-01 | 2014-12-17 | 西斯维尔科技有限公司 | Method and apparatus for managing electric energy produced locally for self-consumption and distributed to multiple users belonging to one or more communities of users |
| CN104221243B (en) * | 2012-03-01 | 2018-01-19 | 西斯维尔科技有限公司 | For managing as the method and apparatus of the electric energy that is locally generated and being distributed to the multiple users for belonging to one or more communities of users from consumption |
| CN104776536A (en) * | 2015-05-04 | 2015-07-15 | 珠海格力电器股份有限公司 | Photovoltaic air conditioner system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Baoding Tianwei Yingli New Engergy Co., Ltd. Assignor: Yingli Energy (China) Co., Ltd. Contract record no.: 2011990000611 Denomination of utility model: Self-maintenance and management system of intelligent monitoring of photovoltaic power supply system Granted publication date: 20101013 License type: Exclusive License Record date: 20110712 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101013 Termination date: 20150317 |
|
| EXPY | Termination of patent right or utility model |