CN101277028A - Solar battery power supply system storing power using double accumulators - Google Patents
Solar battery power supply system storing power using double accumulators Download PDFInfo
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- CN101277028A CN101277028A CNA2007100346391A CN200710034639A CN101277028A CN 101277028 A CN101277028 A CN 101277028A CN A2007100346391 A CNA2007100346391 A CN A2007100346391A CN 200710034639 A CN200710034639 A CN 200710034639A CN 101277028 A CN101277028 A CN 101277028A
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Abstract
A solar battery electric power supply system which adopts double accumulator for electric power storage is composed of a solar battery module 1, an unilateral diode 2, a capacitor 3, a single-chip computer control circuit 4, a voltage transducer 5, a voltage transducer 6, a power switch device 7, a power switch device 8, a power switch device 11, a power switch device 12, an accumulator 9, an accumulator 10, a DC-AC inverter 13, a direct current load 14 and a sunshine intensity sensor 15. Two sets of accumulator are provided in the solar battery electric power supplying system. The computer controls the alternate charging and operation of two sets of accumulator thereby that each group can realize the sufficient charging and discharging and the service lifetime of the accumulator is prolonged greatly.
Description
Technical field
The present invention relates to a kind of solar energy generation technology, particularly a kind of solar cell power system that adopts two storage battery electric power storages.
Background technology
At present, along with expanding economy, the progress of society, people have proposed more and more higher requirement to the energy, and seeking new forms of energy becomes the urgent problem that current mankind faces.Since solar power generation have thermoelectricity, water power, nuclear power advantages such as the popularity of incomparable spatter property, fail safe, resource and abundance, solar energy is considered to most important new forms of energy of 21st century.The Application of Solar Energy technology obtains than quantum jump at present, and is applied to build systems such as corridor lighting, city lighting illumination, solar energy hot water supply and heating more maturely.Especially the development of solar-photovoltaic technology has brought wide prospect more for the application of solar energy in illumination.Solar-photovoltaic technology is to utilize solar module solar energy directly to be changed into the technology of electric energy.General solar photovoltaic powered system mainly comprises: solar module, storage battery, controller, DC-AC inverter, load etc.When load is direct current, then without the DC-AC inverter.In solar cell power system, the output energy level instability of solar cell is so need configuration battery system ability operate as normal.Lifting solar powered illuminator is example, and the direct current energy that solar cell produces is introduced into battery stores, reaches certain threshold value, supplies lighting load again.The characteristic of storage battery directly influences operating efficiency, reliability and the price of system.The rule that battery capacity is selected is: under the prerequisite that can satisfy night lighting, the energy of solar module stores as far as possible on daytime, also wants the electric energy of continuous overcast and rainy night lighting needs that can be storing predetermined simultaneously.In solar powered illuminator, the useful life of solar cell and control device is more than 25 years, and be 2～3 years the general useful life of conventional accumulators, so storage battery is a link the weakest in the solar electric power supply system.Adopt storage capacitor to address this problem to a certain extent, can reach the useful life of storage capacitor more than 10 years, but expensive price limit its application.So the solar electric power supply system that uses all adopts the conventional accumulators electric power storage at present, and the useful life of conventional accumulators is not long, will change in general 2～3 years.
Summary of the invention
The objective of the invention is to overcome the above-mentioned deficiency of prior art and a kind of solar cell power system that adopts two storage battery electric power storages is provided.
Technical scheme of the present invention is: a kind of solar cell power system that adopts two storage battery electric power storages, form by solar module 1, unilateral diode 2, capacitor 3, monolithic computer control circuit 4, voltage sensor 5, voltage sensor 6, device for power switching 7, device for power switching 8, device for power switching 11, device for power switching 12, storage battery 9, storage battery 10, DC-AC inverter 13, DC load 14, intensity of sunshine transducer 15.
The minus earth of solar module 1, the anodal positive pole that connects unilateral diode 2, the negative pole of unilateral diode 2 connects the positive pole of capacitor 3, and is connected to the input of device for power switching 7, device for power switching 8, the minus earth of capacitor 3.The output of device for power switching 7, device for power switching 8 is connected respectively to the positive pole of storage battery 9, storage battery 10.The power cathode ground connection of monolithic computer control circuit 4, positive source is connected to the positive pole of capacitor 3.The input port IN1 of monolithic computer control circuit 4 and input port IN2 are connected respectively to the output of voltage sensor 5, voltage sensor 6, and the input of voltage sensor 5, voltage sensor 6 is connected respectively to the positive pole of storage battery 9, storage battery 10.The output OUT1 of monolithic computer control circuit 4, output OUT2, output OUT3 and output OUT4 are connected respectively to the control end of device for power switching 7, device for power switching 8, device for power switching 11 and device for power switching 12.Device for power switching 11, device for power switching 12 inputs are connected to the positive pole of storage battery 9, storage battery 10, device for power switching 11, device for power switching 12 outputs are connected to the positive pole of DC-AC inverter 13 input anode and DC load 14, the minus earth of DC-AC inverter 13 input cathode and DC load 14.The minus earth of storage battery 9, storage battery 10.The output of intensity of sunshine transducer 15 is connected to the input IN3 of monolithic computer control circuit 4, other end ground connection.
Its operation principle is: to storage battery 9,10 chargings, realized by monolithic computer control circuit 4 power controlling switching devices 7, device for power switching 8 by charging procedure by unilateral diode 2, capacitor 3, device for power switching 7, device for power switching 8 for solar module 1.During start, the battery-operated state of memory when computer shut down according to last time, controlling a group storage battery is discharge condition, another group storage battery is a charged state.Voltage sensor 3 and voltage sensor 4 are sent into monolithic computer control circuit 2 to the terminal voltage of storage battery 9 and storage battery 10 respectively, after the AD conversion:
1, computer detects the battery tension that is being in discharge condition at any time and whether is lower than threshold value (be generally nominal voltage 0.85 times), in case be lower than threshold value, the power controlling switching device, make this group storage battery be transformed into charged state, simultaneously, another group storage battery is transformed into discharge condition from charged state.Design by to the control computer software makes two group storage batteries be in different operating states all the time.
When 2, storage battery began to charge, monolithic computer carried out fast-pulse charging or constant current charge according to intensity of sunshine power controlling switching device 7 or 8 pairs of storage batterys of device for power switching.In the charging process, whether the voltage that computer detects storage battery at any time is higher than threshold value (be generally nominal voltage 1.15 times), in case be higher than threshold value, the power controlling switching device makes this group storage battery be transformed into the trickle charge state.
3, in the trickle charge process, whether the voltage that computer detects storage battery at any time is higher than threshold value (be generally nominal voltage 1.2 times), in case be higher than threshold value, the power controlling switching device makes this group storage battery be transformed into the floating charge state.
4, during the intensity of sunshine wretched insufficiency, monolithic computer control circuit 4 switch-off power switching devices 7 and device for power switching 8.
Intensity of sunshine transducer 15 is sent into monolithic computer control circuit 4 to the intensity of sunshine signal.When sunshine intensity be elevated to more than the threshold value, monolithic computer control circuit 4 power controlling switching devices 7 or device for power switching 8 make storage battery carry out quick charge according to setting program, when sunshine intensity be reduced to below the threshold value, monolithic computer control circuit 4 power controlling switching devices 7 or device for power switching 8 change storage battery over to decide the electric current constant current charge.When sunshine during the intensity wretched insufficiency, monolithic computer control circuit 4 switch-off power switching devices 7 and device for power switching 8.
Monolithic computer control circuit 4 power controlling switching devices 11 or device for power switching 12 select storage battery 9 or storage battery 10 DC power outputs to supply with dc lighting load 14 or DC-AC inverter 13.
DC-AC inverter 13 can be converted into the direct current of system's output the alternating current of voltage 220V.
The present invention compared with prior art has following characteristics:
1, prolonged the battery service replacement cycle of solar electric power supply system.In the general solar electric power supply system, the too small needs that can not satisfy night lighting of the battery capacity of selecting for use, and the battery capacity of selecting for use is excessive, can make storage battery be in the power shortage state all the time again, influences the life of storage battery, and cause waste.Because the present invention adopts two group storage batteries, can select suitable battery capacity for use on the one hand, can adopt the mode that takes turns to operate on the other hand, every like this group storage battery can be realized discharging and recharging fully, has prolonged the useful life of storage battery greatly.Simultaneously,, therefore adopt the battery service replacement cycle of solar electric power supply system of the present invention can prolong more than one times, promptly extend to more than 6 years from present 2-3 because two group storage batteries take turns to operate.
2, reduced the cost of solar electric power supply system.The prime cost of solar electric power supply system is from solar cell.Generally, relation approximately is 2～4: 1 between solar module rated output power and the load input power, because the two group storage batteries mode that is designed to take turns to operate in the present invention, another group storage battery is in charging when a group storage battery is powered, therefore, the charging interval of every group storage battery is longer than single storage battery electric power storage mode that adopts.So, the solar electric power supply system of equal output power level, adopt the solar panel of wanting required for the present invention to reduce 1/3rd to 1/2nd approximately than the system that adopts single group storage battery, and the cost of solar cell is far above the cost of storage battery, so, adopt the present invention to greatly reduce the cost of solar electric power supply system.
3, improved the reliability of solar electric power supply system.Because storage battery is a link the weakest in the solar electric power supply system, so two storage battery electric power storage technology that the present invention adopts will improve the reliability of solar electric power supply system greatly.
Below in conjunction with the drawings and specific embodiments detailed structure of the present utility model is further described.
Description of drawings
Accompanying drawing 1 is a circuit system structural representation of the present invention.
Embodiment
As shown in Figure 1: a kind of solar cell power system that adopts two storage battery electric power storages, form by solar module 1, unilateral diode 2, capacitor 3, monolithic computer control circuit 4, voltage sensor 5, voltage sensor 6, device for power switching 7, device for power switching 8, device for power switching 11, device for power switching 12, storage battery 9, storage battery 10, DC-AC inverter 13, DC load 14, intensity of sunshine transducer 15.
The minus earth of solar module 1, the anodal positive pole that connects unilateral diode 2, the negative pole of unilateral diode 2 connects the positive pole of capacitor 3, and is connected to the input of device for power switching 7, device for power switching 8, the minus earth of capacitor 3.The output of device for power switching 7, device for power switching 8 is connected respectively to the positive pole of storage battery 9, storage battery 10.The power cathode ground connection of monolithic computer control circuit 4, positive source is connected to the positive pole of capacitor 3.The input port IN1 of monolithic computer control circuit 4 and input port IN2 are connected respectively to the output of voltage sensor 5, voltage sensor 6, and the input of voltage sensor 5, voltage sensor 6 is connected respectively to the positive pole of storage battery 9, storage battery 10.The output OUT1 of monolithic computer control circuit 4, output OUT2, output OUT3 and output OUT4 are connected respectively to the control end of device for power switching 7, device for power switching 8, device for power switching 11 and device for power switching 12.Device for power switching 11, device for power switching 12 inputs are connected to the positive pole of storage battery 9, storage battery 10, device for power switching 11, device for power switching 12 outputs are connected to the positive pole of DC-AC inverter 13 input anode and DC load 14, the minus earth of DC-AC inverter 13 input cathode and DC load 14.The minus earth of storage battery 9, storage battery 10.The output of intensity of sunshine transducer 15 is connected to the input IN3 of monolithic computer control circuit 4, other end ground connection.
Claims (1)
1. a solar cell power system that adopts two storage battery electric power storages is characterized in that being made up of solar module 1, unilateral diode 2, capacitor 3, monolithic computer control circuit 4, voltage sensor 5, voltage sensor 6, device for power switching 7, device for power switching 8, device for power switching 11, device for power switching 12, storage battery 9, storage battery 10, DC-AC inverter 13, DC load 14, intensity of sunshine transducer 15;
The minus earth of solar module 1, the anodal positive pole that connects unilateral diode 2, the negative pole of unilateral diode 2 connects the positive pole of capacitor 3, and is connected to the input of device for power switching 7, device for power switching 8, the minus earth of capacitor 3; The output of device for power switching 7, device for power switching 8 is connected respectively to the positive pole of storage battery 9, storage battery 10; The power cathode ground connection of monolithic computer control circuit 4, positive source is connected to the positive pole of capacitor 3; The input port IN1 of monolithic computer control circuit 4 and input port IN2 are connected respectively to the output of voltage sensor 5, voltage sensor 6, and the input of voltage sensor 5, voltage sensor 6 is connected respectively to the positive pole of storage battery 9, storage battery 10; The output OUT1 of monolithic computer control circuit 4, output OUT2, output OUT3 and output OUT4 are connected respectively to the control end of device for power switching 7, device for power switching 8, device for power switching 11 and device for power switching 12; Device for power switching 11, device for power switching 12 inputs are connected to the positive pole of storage battery 9, storage battery 10, device for power switching 11, device for power switching 12 outputs are connected to the positive pole of DC-AC inverter 13 input anode and DC load 14, the minus earth of DC-AC inverter 13 input cathode and DC load 14; The minus earth of storage battery 9, storage battery 10; The output of intensity of sunshine transducer 15 is connected to the input IN3 of monolithic computer control circuit 4, other end ground connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007100346391A CN101277028B (en) | 2007-03-26 | 2007-03-26 | Solar battery power supply system storing power using double accumulators |
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| CN2007100346391A CN101277028B (en) | 2007-03-26 | 2007-03-26 | Solar battery power supply system storing power using double accumulators |
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| CN101277028A true CN101277028A (en) | 2008-10-01 |
| CN101277028B CN101277028B (en) | 2012-07-18 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102364810A (en) * | 2011-09-30 | 2012-02-29 | 长沙学院 | Control method and controller for controlling electric energy of multistage absorption solar photovoltaic cell |
| CN103166301A (en) * | 2011-12-19 | 2013-06-19 | 日本电气株式会社 | Uninterruptible power system, method of controlling power supply, and recording medium having power supply control program stored therein |
| CN103187789A (en) * | 2011-12-30 | 2013-07-03 | 比亚迪股份有限公司 | Quick uninterrupted power system and control method of quick uninterrupted power system |
| CN104467101A (en) * | 2014-12-18 | 2015-03-25 | 江苏宇昊新能源科技有限公司 | Storage battery charging system of photovoltaic module |
| CN104767476A (en) * | 2015-04-21 | 2015-07-08 | 福建农林大学 | Wiring method for domestic solar power generation and distribution device |
| CN108242848A (en) * | 2016-12-27 | 2018-07-03 | 中国船舶重工集团公司七五〇试验场 | A kind of uninterrupted power supply device |
| CN108988337A (en) * | 2018-08-20 | 2018-12-11 | 长沙威克电力技术科技有限公司 | A kind of design method and micro-grid system of micro-grid system energy storage device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2627713Y (en) * | 2003-05-12 | 2004-07-21 | 新疆新能源股份有限公司 | High-power solar energy charging set |
| CN2636433Y (en) * | 2003-08-01 | 2004-08-25 | 肖奇 | Solar energy power source controller device |
| CN100553398C (en) * | 2005-11-18 | 2009-10-21 | 清华大学 | Solar energy high voltage sodium lamp controller based on single-stage inverter |
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2007
- 2007-03-26 CN CN2007100346391A patent/CN101277028B/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102364810A (en) * | 2011-09-30 | 2012-02-29 | 长沙学院 | Control method and controller for controlling electric energy of multistage absorption solar photovoltaic cell |
| CN102364810B (en) * | 2011-09-30 | 2014-04-23 | 长沙学院 | Control method and controller for controlling electric energy of multistage absorption solar photovoltaic cell |
| CN103166301A (en) * | 2011-12-19 | 2013-06-19 | 日本电气株式会社 | Uninterruptible power system, method of controlling power supply, and recording medium having power supply control program stored therein |
| US9281714B2 (en) | 2011-12-19 | 2016-03-08 | Nec Corporation | Uninterruptible power system, method of controlling power supply, and recording medium having power supply control program stored therein |
| CN103187789A (en) * | 2011-12-30 | 2013-07-03 | 比亚迪股份有限公司 | Quick uninterrupted power system and control method of quick uninterrupted power system |
| CN103187789B (en) * | 2011-12-30 | 2015-09-02 | 比亚迪股份有限公司 | Quick uninterruptible power system and control method thereof |
| CN104467101A (en) * | 2014-12-18 | 2015-03-25 | 江苏宇昊新能源科技有限公司 | Storage battery charging system of photovoltaic module |
| CN104767476A (en) * | 2015-04-21 | 2015-07-08 | 福建农林大学 | Wiring method for domestic solar power generation and distribution device |
| CN108242848A (en) * | 2016-12-27 | 2018-07-03 | 中国船舶重工集团公司七五〇试验场 | A kind of uninterrupted power supply device |
| CN108988337A (en) * | 2018-08-20 | 2018-12-11 | 长沙威克电力技术科技有限公司 | A kind of design method and micro-grid system of micro-grid system energy storage device |
| CN108988337B (en) * | 2018-08-20 | 2022-06-14 | 长沙威克电力技术科技有限公司 | Design method of energy storage device of micro-grid system and micro-grid system |
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| CN101277028B (en) | 2012-07-18 |
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Effective date of registration: 20181206 Address after: 417000 Loudi Economic and Technological Development Zone, Hunan Province, 5 blocks in D District, Qianyuan International Enterprise Center, Jixing North Road Patentee after: Hunan Star Environmental Protection Technology Co., Ltd. Address before: 421001 Foreign Affairs and Overseas Chinese Affairs Office of Hengyang People's Government of Hunan Province Patentee before: Hu Haiyang |
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Granted publication date: 20120718 Termination date: 20200326 |
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