CN201018312Y - A Photoelectric Complementary Control System - Google Patents
A Photoelectric Complementary Control System Download PDFInfo
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- CN201018312Y CN201018312Y CNU2007200000064U CN200720000006U CN201018312Y CN 201018312 Y CN201018312 Y CN 201018312Y CN U2007200000064 U CNU2007200000064 U CN U2007200000064U CN 200720000006 U CN200720000006 U CN 200720000006U CN 201018312 Y CN201018312 Y CN 201018312Y
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- 230000000295 complement effect Effects 0.000 title claims description 11
- 230000005611 electricity Effects 0.000 claims abstract description 8
- 238000009825 accumulation Methods 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 238000013083 solar photovoltaic technology Methods 0.000 description 3
- 238000004146 energy storage Methods 0.000 description 2
- 230000009897 systematic effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005094 computer simulation Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 238000013082 photovoltaic technology Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
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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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Abstract
The utility model discloses a light and electricity control system designed for the current shortage in energy, which is composed of a solar storage and a power supply unit and an utility supply unit providing electric power to load and of solar utility power switch unit for switching the solar storage unit and utility supply units. The utility model integrates into one system with a controller, an inverter and a conventional power switch circuit facilitating the installation and maintenance of system and adopts MPPT technology maintaining the battery components at maximum power output and substantially improving the efficiency of the whole system and reducing the system costs, which is helpful to massively promote for application.
Description
Technical field
The utility model relates to the solar photovoltaic technology field, refers more particularly to full-automatic control system and electric power energy storage field that photoelectricity and conventional electric power switch.
Background technology
As everyone knows, solar energy is a kind of cleaning, inexhaustible regenerative resource resource, can not pollute environment.The energy that the sun is radiated the earth every year is 1.5 * 10
18KWh, and the human annual gross energy (primary energy) about 10 that consumes
14The energy that kWh, the sun send has been Duoed more than 15,000 times than the human energy that consumes, and studies and utilizes solar energy to be well worth doing.China still has several ten million populations to live in no electrical network covering area at present, and electricity needs is very urgent.Wideling popularize the application of heliotechnics and product is the investment of a long-term economy.The restriction that the supply of electric power deficiency is serious economic development, and these places often are the profuse places of solar energy resources, therefore utilize solar-photovoltaic technology to address this problem and are undoubtedly a kind of excellent scheme.And the key that realizes this technology is just on control system, the control system overwhelming majority on the market all is a system independently, run into many overcast and rainyly continuously just can not use, and all be low power application, it is just unstable that power is big, price is also very high, exists inconvenience in practical application, has limited its scope of applying.
China's photovoltaic industry also is in the starting stage, and development speed also lags behind the demand of domestic market development simultaneously well below developed country.But along with fast development in recent years, China's photovoltaic technology is compared with advanced international standard, and gap is constantly dwindled.Country started western province " every township will have electricity " engineering project in 2002, was satisfying outlying district people's household electricity demand, had brought into play important function in the process of raising west area people's living standard, had brought new market also for domestic photovoltaic industry.According to authoritative institution's prediction, will continue maintenance 20～30% or higher rate increase with producing to the photovoltaic market in the whole world in 2010.Growth along with technological progress and market scale, the price that predicts the year two thousand twenty dwelling house grid-connected photovoltaic power generation system will be from present De $7.0/kWp Xia Jiangdao $1.52/kWp, cost of electricity-generating will be from present De $0.24 5/kWh Xia Jiangdao $0.053/kWh, thereby possesses certain market competitiveness gradually.2008 Olympic Games will be in Held in Beijing, the Department of Science and Technology, ten departments such as Beijing release " Olympic Games science and technology (2008) action plan " jointly, propose to adopt solar photovoltaic technology, make the street lamp that comprises Olympic Green, each venue, Lawn lamp, public lavatory illumination, greenery patches irrigation etc., all use solar energy.In addition, nearly 70% supplied with by coal in the present energy consumption of China, this energy resource structure of depending on fossil fuel unduly has caused very big environment, economy and social negative effect; As not improving energy resource structure, will become the whole world first discharging rich and influential family above the U.S. to total discharging of China's greenhouse gas in 2015, by the current trends development, expect the year two thousand twenty, the discharge capacity of China CO2 will account for 28% of the total discharging in the whole world.
Energy situation from long-range to the year two thousand fifty has only the photovoltaic utilization can solve the short of electricity problem, and wind energy also can solve a part.International foremost energy expert's prophesy, " problem that the solar energy epoch do not come or not is the year two thousand twenty, or the year two thousand thirty or the problem of the year two thousand fifty ".
According to calculating, if conversion of solar energy is 15% for the efficient of electricity, every square metre area can provide about 0.036 kilowatt electric energy its per dayly can provide about 0.41 kilowatt-hour electric energy.If desert area has 360 days hours of daylight in every year, so the desert of every square metre of area will be able to provide about 360 * 0.41=150 kilowatt-hour electric energy in year.85.4 ten thousand square kilometres desert can provide 85.4 * 150 * 1010=1.28 * 1014 degree year.With when running year of thermal power generation is to calculate the above-mentioned solar powered electric power installation that will be equivalent to 2 * 1010 kilowatts in 6400 hours.As providing 106 kilowatts electrical power to calculate with every standard nuclear power station, 850,000 square kilometres desert area can provide the electrical power of about 20000 nuclear power stations so.Some people estimates, to the year two thousand fifty, may need 2500 * 106 kilowatts electric power approximately.Therefore,, that is be about 100,000 square kilometres area, just can provide needed electric power only by 12.5% area of desert area.About 1,100,000 square kilometres of the area of Inner Mongolia Autonomous Region, wherein desert and desertification area are about 20～300,000 square kilometres, so only the solar energy of the desert area of Inner Mongolia Autonomous Region just can provide needed enough electric power in the year two thousand fifty and development from now on for China.
The utility model content
For overcoming above-mentioned defective, the purpose of this utility model provides a kind of stable performance, reasonable price, the power light-electricity complementary control system that can automatically switch with civil power up to 1500w.
For reaching above purpose, the utility model light-electricity complementary control system comprises solar energy accumulation power supply unit and mains-supplied unit that electric energy can be provided to load; Also comprise solar energy civil power switch unit, be used for solar energy accumulation power supply unit and mains-supplied unit and switch.
Wherein, above-mentioned solar energy accumulation power supply unit comprises: solar cell, control inverter and batteries are formed.
Wherein, above-mentioned control inverter comprises and is used for the live part that electricity that the electric energy with the savings of storage battery converts the power pack of alternating current to and be used for that solar cell is sent stores batteries into.
Wherein, above-mentioned power pack is the DC-AC inverter circuit.
Wherein, above-mentioned live part comprises the BUCK circuit, is arranged between solar energy energy battery and the batteries, as the charging main circuit; Charging control circuit, by the maximum power point control circuit, the PWM pulse-width modulation circuit, direct voltage control and intelligent accummulator control circuit are formed; Wherein, the maximum power point control circuit is in order to the electric current and the voltage of monitoring solar cell output, and exports relevant information to the PWM pulse-width modulation circuit by dc voltage control circuit; The intelligent accummulator control circuit is in order to the electric current and the voltage of monitoring batteries, and exports relevant information to the PWM pulse-width modulation circuit; The PWM pulse-width modulation circuit is in order to carry out resistance conversion according to relevant information to the BUCK circuit.
The utility model has the advantages that: controller, inverter, conventional electric power commutation circuit are integrated becomes a system, be convenient to installation, the maintenance of system, adopt MPPT maximum power point tracking (MPPT) technology, make battery component remain maximum power output, overall system efficiency is increased substantially, reduce the cost of system, more helped large-area applying.
Description of drawings
Fig. 1 is a systematic schematic diagram of the present utility model.
Fig. 2 is circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with accompanying drawing this reality being made novel light-electricity complementary control system is further described.
As shown in Figure 1, this reality is made novel light-electricity complementary control system, comprises solar energy accumulation power supply unit and mains-supplied unit that electric energy can be provided to load; Also comprise solar energy civil power switch unit, be used for solar energy accumulation power supply unit and mains-supplied unit and switch.Wherein, above-mentioned solar energy accumulation power supply unit comprises solar cell, control inverter and batteries composition.Daytime, solar cell power generation charged a battery by control inverter, and evening, powering load when power shortage, provided electric power by conventional electric power to load.Its systematic schematic diagram is Fig. 1.
For making the utility model reach the purpose of energy-conserving and environment-protective to greatest extent, supply power mode by solar powered be main, conventional electric power is auxilliary, can realize switching with conventional electric power: solar powered when sufficient, by solar powered; When solar powered deficiency, automatically switch by system, by conventional mains-supplied.In case battery charge is after the recovery point amount, system switches to solar powered again, protects storage battery greatly, prolongs the useful life of battery.The whole system Automatic Control, light, time control are opened, and light, time control are closed, and need not manual operation, and be easy to use, has high economic benefit.
Charging circuit has constituted the utility model major loop part, cooperates solar cell and energy storage battery work.It should realize the maximum power output (being MPPT) of solar cell, again storage battery is carried out the charging of minimal losses pattern, is the crucial link of whole system.
Carry out theory analysis and Computer Simulation by main circuit, chosen the BUCK circuit as charging circuit main circuit form after relatively various topologys.As shown in Figure 2.
The major function advantage of charging circuit is: with voltage, the capacitance grade coupling of solar cell, storage battery, reliable and stable work when guaranteeing charging; The charging major loop structure can adapt to the control needs, adopts the BUCK circuit, the convenient MPPT maximum power point tracking that realizes solar cell; High efficiency, low-loss;
Power supply circuits mainly contain DC-AC inverter circuit conventional electric power commutation circuit and form, 12～48v the dc inverter that when the storage battery electric energy is sufficient storage battery is provided becomes 50Hz, 220v alternating current, and provide electric power to load, when system detects the battery power deficiency, system automatically switches to the conventional electric power power supply, has so not only saved electric energy but also has guaranteed Electrical Safety.
The utility model has the advantages that: controller, inverter, conventional electric power commutation circuit are integrated becomes a system, Be convenient to installation, the maintenance of system, adopt MPPT maximum power point tracking (MPPT) technology, make battery component remain peak power Output increases substantially the efficient of whole system, has reduced the cost of system, more is conducive to large-area applying.
Claims (5)
1. a light-electricity complementary control system is characterized in that: comprise solar energy accumulation power supply unit and mains-supplied unit that electric energy can be provided to load; Also comprise solar energy civil power switch unit, be used for solar energy accumulation power supply unit and mains-supplied unit and switch.
2. light-electricity complementary control system as claimed in claim 1 is characterized in that: described solar energy accumulation power supply unit comprises: solar cell, control inverter and batteries are formed.
3. light-electricity complementary control system as claimed in claim 2 is characterized in that: described control inverter comprises and is used for the live part that electricity that the electric energy with the savings of storage battery converts the power pack of alternating current to and be used for that solar cell is sent stores batteries into.
4. light-electricity complementary control system as claimed in claim 3 is characterized in that: described power pack is the DC-AC inverter circuit.
5. light-electricity complementary control system as claimed in claim 3 is characterized in that: described live part comprises the BUCK circuit, is arranged between solar energy energy battery and the batteries, as the charging main circuit;
Charging control circuit, by the maximum power point control circuit, the PWM pulse-width modulation circuit, direct voltage control and intelligent accummulator control circuit are formed;
Wherein, the maximum power point control circuit is in order to the electric current and the voltage of monitoring solar cell output, and exports relevant information to the PWM pulse-width modulation circuit by dc voltage control circuit; The intelligent accummulator control circuit is in order to the electric current and the voltage of monitoring batteries, and exports relevant information to the PWM pulse-width modulation circuit; The PWM pulse-width modulation circuit is in order to carry out resistance conversion according to relevant information to the BUCK circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200000064U CN201018312Y (en) | 2007-01-04 | 2007-01-04 | A Photoelectric Complementary Control System |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200000064U CN201018312Y (en) | 2007-01-04 | 2007-01-04 | A Photoelectric Complementary Control System |
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| Publication Number | Publication Date |
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| CN201018312Y true CN201018312Y (en) | 2008-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2007200000064U Expired - Fee Related CN201018312Y (en) | 2007-01-04 | 2007-01-04 | A Photoelectric Complementary Control System |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102468685A (en) * | 2010-11-19 | 2012-05-23 | 中兴通讯股份有限公司 | Power supply system |
| CN102625532A (en) * | 2012-03-18 | 2012-08-01 | 钟婕 | Energy-storage photoelectric induction controller |
| CN102810902A (en) * | 2012-09-04 | 2012-12-05 | 山东力诺太阳能电力工程有限公司 | Household hybrid power supply management system and power supply management method |
| CN103066687A (en) * | 2012-11-19 | 2013-04-24 | 宁波金源电气有限公司 | Uninterrupted power supply (UPS) solar charged inverter |
| CN103227483A (en) * | 2013-01-25 | 2013-07-31 | 深圳市创益科技发展有限公司 | Solar charger capable of charging various batteries |
| CN103762709A (en) * | 2014-02-26 | 2014-04-30 | 上海华测导航技术有限公司 | Device and method for achieving intelligent photovoltaic charging in GNSS |
| CN108093803B (en) * | 2017-12-08 | 2021-06-04 | 中国农业大学 | Multi-user random water supply and fertilization system and optimal design method |
-
2007
- 2007-01-04 CN CNU2007200000064U patent/CN201018312Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102468685A (en) * | 2010-11-19 | 2012-05-23 | 中兴通讯股份有限公司 | Power supply system |
| CN102625532A (en) * | 2012-03-18 | 2012-08-01 | 钟婕 | Energy-storage photoelectric induction controller |
| CN102625532B (en) * | 2012-03-18 | 2014-07-23 | 国网浙江杭州市萧山区供电公司 | Energy-storage photoelectric induction controller |
| CN102810902A (en) * | 2012-09-04 | 2012-12-05 | 山东力诺太阳能电力工程有限公司 | Household hybrid power supply management system and power supply management method |
| CN102810902B (en) * | 2012-09-04 | 2014-10-22 | 山东力诺太阳能电力工程有限公司 | Household hybrid power supply management system and power supply management method |
| CN103066687A (en) * | 2012-11-19 | 2013-04-24 | 宁波金源电气有限公司 | Uninterrupted power supply (UPS) solar charged inverter |
| CN103227483A (en) * | 2013-01-25 | 2013-07-31 | 深圳市创益科技发展有限公司 | Solar charger capable of charging various batteries |
| CN103227483B (en) * | 2013-01-25 | 2016-01-20 | 深圳市创益科技发展有限公司 | A kind of solar charger for multiple battery charging |
| CN103762709A (en) * | 2014-02-26 | 2014-04-30 | 上海华测导航技术有限公司 | Device and method for achieving intelligent photovoltaic charging in GNSS |
| CN103762709B (en) * | 2014-02-26 | 2016-01-13 | 上海华测导航技术股份有限公司 | Device and method for realizing photovoltaic smart charging in GNSS navigation system |
| CN108093803B (en) * | 2017-12-08 | 2021-06-04 | 中国农业大学 | Multi-user random water supply and fertilization system and optimal design method |
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Free format text: CORRECT: CO-PATENTEE TO: ZHAO XIAOFEI XU YUN ^ |
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| CU01 | Correction of utility model |
Correction item: Co-patentee Correct: Zhao Xiaofei|Xu Yun Number: 06 Page: The title page Volume: 24 |
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| CU03 | Publication of corrected utility model |
Correction item: Co-patentee Correct: Zhao Xiaofei|Xu Yun Number: 06 Volume: 24 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080206 Termination date: 20150104 |
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| EXPY | Termination of patent right or utility model |