CN204334417U - Wind-photovoltaic complementary power supply system - Google Patents
Wind-photovoltaic complementary power supply system Download PDFInfo
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- CN204334417U CN204334417U CN201520006638.6U CN201520006638U CN204334417U CN 204334417 U CN204334417 U CN 204334417U CN 201520006638 U CN201520006638 U CN 201520006638U CN 204334417 U CN204334417 U CN 204334417U
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- assembly module
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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
Abstract
The utility model discloses a kind of wind-photovoltaic complementary power supply system to comprise: solar photovoltaic cell panel assembly module, wind-driven generator and accumulator cell assembly module, also comprise: intelligent control module; Intelligent control module comprises power control unit and power inverter unit; Power control unit, its input is all electrically connected with the output of solar photovoltaic cell panel assembly module, wind-driven generator, its output is electrically connected with the input of power inverter unit, its output is also electrically connected with the input of accumulator cell assembly module, for when solar photovoltaic cell panel assembly module or wind-driven generator output current being detected, described output current being converted to galvanic current and being transported to power inverter unit and accumulator cell assembly module; Power inverter unit, its output is electrically connected with each load, and after receiving galvanic current, being converted to civil power is each load supplying.The technical solution of the utility model achieves the round-the-clock power supply of more low cost.
Description
Technical field
The utility model relates to generating for electrical domain, particularly relates to a kind of wind-photovoltaic complementary power supply system.
Background technology
China is vast in territory, with a varied topography, and the electrical network adopting traditional stringing mode to power can't cover all regions, such as, away from the island in continent.
At present, the area covered without electrical network generally adopts diesel engine or photovoltaic power supply.But, the long-time running of diesel engine and maintenance cost (cost that such as fuel oil is purchased and transported) all higher; Photovoltaic power supply amount is less, is difficult to meet the need for electricity without electrical network covering area.
Therefore, be necessary to provide a kind of wind-photovoltaic complementary power supply system, meet the need for electricity without electrical network covering area at lower cost.
Utility model content
For the defect that above-mentioned prior art exists, the utility model provides a kind of wind-photovoltaic complementary power supply system, meets the need for electricity without electrical network covering area at lower cost.
The technical solution of the utility model, provides a kind of wind-photovoltaic complementary power supply system, comprising: solar photovoltaic cell panel assembly module, wind-driven generator and accumulator cell assembly module, and described system also comprises: intelligent control module;
Described intelligent control module specifically comprises: power control unit and power inverter unit;
Described power control unit, its input and described solar photovoltaic cell panel assembly module, the output of wind-driven generator is all electrically connected, its output is electrically connected with the input of described power inverter unit, its output is also electrically connected with the input of described accumulator cell assembly module, for when described solar photovoltaic cell panel assembly module or wind-driven generator output current being detected, by described solar photovoltaic cell panel assembly module, with wind-driven generator export current conversion be galvanic current, and galvanic current is transported to described power inverter unit and described accumulator cell assembly module respectively according to the ratio of setting,
Described power inverter unit, its output is electrically connected with each load, and after receiving galvanic current, being converted to civil power is each load supplying.
In the technical solution of the utility model, wind-photovoltaic complementary power supply system can night and overcast and rainy without during sunlight by wind turbine power generation, and fine day is generated electricity by solar photovoltaic cell panel assembly module, and when existing wind has again the sun, both generate electricity simultaneously; And accumulator cell assembly module is not only to power without solar energy but also without the period of wind energy, and achieving round-the-clock all the period of time powers, thus can meet the need for electricity without electrical network covering area.Generating more economical, the science of power supply and practicality is carried out than being used alone wind-driven generator, solar photovoltaic cell panel assembly module or oil production machine.
And the equipment normally one-time investment of solar power generation and wind power generation, equipment is reliable, and maintenance cost is very low, and the average daily cost generated electricity is far below the cost of diesel power generation.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the wind-photovoltaic complementary power supply system of the utility model embodiment and the internal structure of intelligent control module.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly understand, enumerate preferred embodiment referring to accompanying drawing, the utility model is further described.But it should be noted that, the many details listed in specification are only used to make reader to have a thorough understanding, even if do not have these specific details also can realize these aspects of the present utility model to one or more aspect of the present utility model.
Inventor of the present utility model considers, without electrical network covering area except utilizing except solar power generation, wind energy can also be utilized to generate electricity; And the electric energy of set amount can be stored, not only to power without solar energy but also without the period of wind energy; Thus the need for electricity that can meet without electrical network covering area.And the equipment normally one-time investment of solar power generation and wind power generation, equipment is reliable, and maintenance cost is very low, the cost that the average daily cost generated electricity generates electricity far below full diesel.
The technical scheme of the utility model embodiment is specifically introduced below in conjunction with accompanying drawing.
The structural representation of the wind-photovoltaic complementary power supply system of the utility model embodiment, as shown in Figure 1, comprising: solar photovoltaic cell panel assembly module 101, wind-driven generator 102, accumulator cell assembly module 103 and intelligent control module 104.
Wherein, as shown in Figure 1, intelligent control module 104 comprises power control unit 141 and power inverter unit 142.
Power control unit 141, its input is by cable and solar photovoltaic cell panel assembly module 101, the output of wind-driven generator 102 is all electrically connected, its output is electrically connected with the input of power inverter unit 142, its output is also electrically connected by the input of cable with accumulator cell assembly module 103, for when solar photovoltaic cell panel assembly module 101 or wind-driven generator 102 output current being detected, by solar photovoltaic cell panel assembly module 101, with wind-driven generator 102 export current conversion be galvanic current, and galvanic current is transported to power inverter unit 142 and accumulator cell assembly module 103 respectively according to the ratio of setting.
Power inverter unit 142, its output is electrically connected with each load of wind-photovoltaic complementary power supply system region, and after receiving galvanic current, being converted to civil power is each load supplying.
In the utility model embodiment, the output of accumulator cell assembly module 103 is connected with the input of power inverter unit 142.
Energy supply control module 141 also for when solar photovoltaic cell panel assembly module 101 and wind-driven generator 102 being detected output current and the voltage of accumulator cell assembly module 103 not being greater than setting voltage, stops carrying direct current to power inverter unit 142.
Power inverter unit 142 also for do not receive energy supply control module 141 carry direct current time, obtain direct current from accumulator cell assembly module 103.
More excellent, if energy supply control module 141 is also for detecting that the voltage of accumulator cell assembly module 103 is not more than lower threshold voltage, then make power inverter unit 142 stop from accumulator cell assembly module 103 power taking.Because whole system has good protection for accumulator cell assembly module 103 overvoltage, under-voltage condition; be unlikely to accumulator cell assembly module 103 and produce deep discharge; therefore substantially increase the useful life of accumulator cell assembly module 103, the input of later maintenance cost can be greatly reduced.
Particularly, solar photovoltaic cell panel assembly module 101 comprises the multiple solar cells consisting of square formation series and parallel.The material of solar cell comprises polysilicon; Transform light energy is the efficiency of electric energy by solar cell is 12%-15%.
Power control unit 141 in intelligent control module 104 can obtain the voltage of solar photovoltaic cell panel assembly module 101, electric current and power by the cable be connected with solar photovoltaic cell panel assembly module 101 output; Power control unit 141 can obtain the voltage of wind-driven generator 102, electric current and power by the cable be connected with the output of wind-driven generator 102; Judge whether the electric current summation of solar photovoltaic cell panel the assembly module 101 and wind-driven generator 102 obtained is greater than setting electric current, if, then power control unit 141 determines solar photovoltaic cell panel assembly module 101 and wind-driven generator 102 output current, and is that galvanic current is transported to power inverter unit 142 by the current conversion of acquisition; Otherwise, power control unit 141 determines solar photovoltaic cell panel assembly module 101 and wind-driven generator 102 not output current, does not change or the current conversion of acquisition is no longer transported to power inverter unit 142 into being transported to accumulator cell assembly module 103 after direct current the electric current obtained.
Power control unit 141 can obtain the voltage of accumulator cell assembly module 103 by the cable be connected with the input of accumulator cell assembly module 103.More excellent, power control unit 141 pairs of accumulator cell assembly modules 103 carry out current limliting constant voltage charge, to improve the useful life of accumulator cell assembly module 103.
Accumulator cell assembly module 103 specifically comprises: non-maintaining type valve-regulated sealed lead-acid batteries.The advantages such as it is little that non-maintaining type valve-regulated sealed lead-acid batteries has volume, safe to use, and discharge performance is good, non-maintaining.
The accumulate capacity of accumulator cell assembly module 103 can for each load electricity consumption 8 hours.The accumulate capacity of accumulator cell assembly module 103 can be determined according to factors such as the power of each load of wind-photovoltaic complementary power supply system region, power-on time and continuous calm unglazed number of days, and the special case that concrete determination methods combining is follow-up describes in detail.
In the utility model embodiment, as shown in Figure 1, wind-photovoltaic complementary power supply system, also comprises: output is connected to the diesel engine generator 105 of the input of power control unit 141.
Energy supply control module 141 is also for when solar photovoltaic cell panel assembly module 101 and wind-driven generator 102 being detected output current and the voltage of accumulator cell assembly module 103 not being not more than setting voltage, alternating current is obtained from diesel engine generator 105, and after the alternating current of acquisition is converted to galvanic current, be transported to power inverter unit 142.
In the utility model embodiment, as shown in Figure 1, wind-photovoltaic complementary power supply system, also comprises: distribution box 106.Power inverter unit 142 is each load supplying by distribution box 106.
In the utility model embodiment, intelligent control module 104, also comprises: lightning-protection module (not marking in figure).The lightning protection region of lightning-protection module contains the setting area of solar photovoltaic cell panel assembly module 101 and wind-driven generator 102 interior.Lightning-protection module, for the surge damnification preventing wind-photovoltaic complementary power supply system from suffering because indirect lightning strike or direct stroke produce, is avoided device damage and suffers economic loss.
In the utility model embodiment, intelligent control module 104, also comprises: the display unit (not marking in figure) be connected with energy supply control module 141.Voltage, electric current and power that display unit exports for showing solar photovoltaic cell panel assembly module 101, the voltage that wind-driven generator 102 exports, electric current and power, and the information such as the voltage of accumulator cell assembly module 103, charging current, discharging current, storing electricity; Be convenient to the working condition that site operation personnel, attendant or technical staff grasp wind-photovoltaic complementary power supply system in real time.
Introduce a special case of the utility model embodiment below in detail.
Suppose that the wind-photovoltaic complementary power supply system location of the utility model embodiment is an island, the maximum 3kW of this island actual demand load power consumption, consider the lack of uniformity of this island whole day electricity consumption time, effective electricity consumption time is 4h.The day power consumption on Ze Gai island is: 3kW × 4=12kWh, if consider accumulator cell assembly module 103 efficiency for charge-discharge, calculate by 0.8, then the energy output needing wind-photovoltaic complementary power supply system to provide is 12kWh/0.8=15kWh.
The selection of accumulator cell assembly module 103.Particularly, native system is designed to 24V system.Storage battery in accumulator cell assembly module 103 adopts single-unit 2V, so series connection joint number often organized by storage battery is 12 joints.By at continuous two days calm unglazed can be for subsequent use 2 days, the battery discharge degree of depth 0.8, the accumulate capacity of calculating accumulator assembly module 103: the total accumulate capacity of accumulator cell assembly module 103=(12kWh × 2 day/0.8)/24V=1250Ah.Rated capacity then should be selected to be the batteries of 24V/1500Ah.
The calculating of wind light mutual complementing capacity.Particularly, consider that island scene resource is better, adopt wind light mutual complementing to power to equipment, suppose that the average effective of the wind energy of wind-photovoltaic complementary power supply system installation region annual every day utilizes the time for 4h, it 5 hours is benchmark that average light is shone.
Solar powered scheme.Particularly, solar photovoltaic cell panel assembly module 101 minimum power: 15kWh/5h=3kW.Consider system loss and the attenuation rate of solar photovoltaic cell panel assembly module 101, get safety factor 1.4.Consider least favorable factor, the power of solar photovoltaic cell panel assembly module 101 should be: 3kWh × 2 × 1.4=8.4kW.The photovoltaic capacity of solar photovoltaic cell panel assembly module 101 calculates, consider erection space and with the reason such as controller power grade, the day gross generation of solar photovoltaic cell panel assembly module 101, the 2 cover solar photovoltaic cell panel assembly module 101 of design lkW is: lkW × 2 × 5h=l0kWh.
Wind power supply scheme.Particularly, the minimum power of wind-driven generator 102: 15kWh/4h=3.75kW.Consider system loss and the attenuation rate of wind-driven generator 102, get safety factor 1.4.Consider least favorable factor, the power of wind-driven generator 102 should be: 3.75kWh × 1.4 × 2=10.5kW.The calculation of capacity of wind-driven generator 102, considers load and in-site installation situation, and adopt 5kW wind-driven generator 102 to carry out system, the daily generation of the wind-driven generator 102 of separate unit 5kW is: 420W × 24h=10.08kWh.
The equilibrium of supply and demand calculates.Particularly, consider the situation that wind-driven generator 102 and solar photovoltaic cell panel assembly module 101 generate electricity jointly, then gross generation is: 10+10.08=20.08kWh.Then wind-photovoltaic complementary power supply system supply and demand ratio is: 20.08/15=1.3, therefore the solar photovoltaic cell panel assembly module 101 that 1 5kW blower fan generator 102 and 2 overlaps lkW meets the need for electricity on this island completely.
Therefore, the wind-photovoltaic complementary power supply system total installation of generating capacity on this island is 15kW, wherein wind-driven generator 102 installed capacity 10.08kW, solar photovoltaic cell panel assembly module 101 installed capacity 10kW.Accumulator cell assembly module 103 total capacity is 24V/1500Ah, wind-photovoltaic complementary power supply system when after accumulator cell assembly module 103 is saturated can calm unglazed continuous normal power supply 2 days.
In the technical scheme of the utility model embodiment, wind-photovoltaic complementary power supply system can night and overcast and rainy without during sunlight by wind turbine power generation, and fine day is generated electricity by solar photovoltaic cell panel assembly module, when existing wind has again the sun, both generate electricity simultaneously; And accumulator cell assembly module is not only to power without solar energy but also without the period of wind energy, and achieving round-the-clock all the period of time powers, thus can meet the need for electricity without electrical network covering area.Generating more economical, the science of power supply and practicality is carried out than being used alone wind-driven generator, solar photovoltaic cell panel assembly module or oil production machine.
And the equipment normally one-time investment of solar power generation and wind power generation, equipment is reliable, and maintenance cost is very low, and the average daily cost generated electricity is far below the cost of diesel power generation.
The above is only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (7)
1. a wind-photovoltaic complementary power supply system, comprising: solar photovoltaic cell panel assembly module, wind-driven generator and accumulator cell assembly module, is characterized in that, also comprise: intelligent control module;
Described intelligent control module specifically comprises: power control unit and power inverter unit;
Described power control unit, its input and described solar photovoltaic cell panel assembly module, the output of wind-driven generator is all electrically connected, its output is electrically connected with the input of described power inverter unit, its output is also electrically connected with the input of described accumulator cell assembly module, for when described solar photovoltaic cell panel assembly module or wind-driven generator output current being detected, by described solar photovoltaic cell panel assembly module, with wind-driven generator export current conversion be galvanic current, and galvanic current is transported to described power inverter unit and described accumulator cell assembly module respectively according to the ratio of setting,
Described power inverter unit, its output is electrically connected with each load, and after receiving galvanic current, being converted to civil power is each load supplying.
2. the system as claimed in claim 1, is characterized in that, the output of described accumulator cell assembly module is connected with the input of described power inverter unit; And
Described energy supply control module also for when described solar photovoltaic cell panel assembly module and wind-driven generator being detected output current and the voltage of described accumulator cell assembly module not being greater than setting voltage, stops to described power inverter unit conveying direct current;
When described power inverter unit is not also for receiving the direct current of described energy supply control module conveying, obtain direct current from described accumulator cell assembly module.
3. system as claimed in claim 2, is characterized in that, also comprise: output is connected to the diesel engine generator of the input of described power control unit; And
Described energy supply control module is also for when described solar photovoltaic cell panel assembly module and wind-driven generator being detected output current and the voltage of described accumulator cell assembly module not being not more than setting voltage, alternating current is obtained from described diesel engine generator, and after the alternating current of acquisition is converted to galvanic current, be transported to described power inverter unit.
4. the system as claimed in claim 1, is characterized in that, also comprises: distribution box;
Described power inverter unit is each load supplying by described distribution box.
5. the system as claimed in claim 1, is characterized in that, described intelligent control module, also comprises: lightning-protection module;
The lightning protection region of described lightning-protection module contains the setting area of described solar photovoltaic cell panel assembly module and wind-driven generator interior.
6. the system as claimed in claim 1, is characterized in that, described solar photovoltaic cell panel assembly module comprises the multiple solar cells consisting of square formation series and parallel;
Described solar cell, its material comprises polysilicon, and transform light energy is the efficiency of electric energy by it is 12%-15%.
7. the system as claimed in claim 1, is characterized in that, described accumulator cell assembly module specifically comprises: non-maintaining type valve-regulated sealed lead-acid batteries; And
The accumulate capacity of described accumulator cell assembly module can for described each load electricity consumption 8 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520006638.6U CN204334417U (en) | 2015-01-06 | 2015-01-06 | Wind-photovoltaic complementary power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520006638.6U CN204334417U (en) | 2015-01-06 | 2015-01-06 | Wind-photovoltaic complementary power supply system |
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| Publication Number | Publication Date |
|---|---|
| CN204334417U true CN204334417U (en) | 2015-05-13 |
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| CN201520006638.6U Expired - Fee Related CN204334417U (en) | 2015-01-06 | 2015-01-06 | Wind-photovoltaic complementary power supply system |
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2015
- 2015-01-06 CN CN201520006638.6U patent/CN204334417U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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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 |
Granted publication date: 20150513 Termination date: 20190106 |
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| CF01 | Termination of patent right due to non-payment of annual fee |