CN101854074A - Direct current power supply system based on independent solar photovoltaic power generation - Google Patents
Direct current power supply system based on independent solar photovoltaic power generation Download PDFInfo
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- CN101854074A CN101854074A CN201010209344A CN201010209344A CN101854074A CN 101854074 A CN101854074 A CN 101854074A CN 201010209344 A CN201010209344 A CN 201010209344A CN 201010209344 A CN201010209344 A CN 201010209344A CN 101854074 A CN101854074 A CN 101854074A
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- direct current
- power supply
- supply system
- solar photovoltaic
- power
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
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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 invention relates to a direct current power supply system based on independent solar photovoltaic power generation, which comprises a solar photovoltaic cell, a storage battery, a storage battery detection and control circuit and a DC-DC power supply, wherein in the solar photovoltaic cell, a suitable photovoltaic battery panel is selected according to the capacity of electric equipment to be arranged on the roof of a building. Because of the novel concept and the special design of the design of the direct current power supply system, the direct current multiple constant current voltage-reducing drive unit is integrated and the uniform electricity utilization management is carried out, the problem of the traditional multiple constant current voltage-reducing drive is solved, and the reliability and the direct current power supply use efficacy can be improved when in use, thereby ensuring the applicability of the direct current power supply system. The design ensures the performance of the detection system and the use value of the current household direct current equipment and the LED illumination, and is a direct current power supply system design with higher innovative concept based on the solar photovoltaic power generation.
Description
Technical field
Patent of the present invention relates to a kind of DC power-supply system, especially based on the DC power-supply system of independent solar photovoltaic power generation, it is a kind of simple in structure, work effectiveness height, a kind of DC power-supply system of good stability, being current society and in the future all very popular a kind of direct current supply mode, is a kind of development trend of LED mains lighting supply from now on.
Background technology
Will find that instrument and meter, power consumption equipment and the household electrical appliance etc. of current society all use direct current as long as think about it you, for example: television set, PC, phone, printer, mobile phone, game machine and portable music player etc., the various electrical equipment of ours at one's side in fact all use direct current work.And recently products such as washing machine, air-conditioning and fluorescent lamp also have been equipped with inverter, and excellent its is that present LED illumination also is direct current supply, so these products also can be converted to direct current by alternating current, and then it is modulated to high-frequency alternating current.Therefore, existing alternating current is not provided, and directly provides direct current, transfer direct current to or transfer the AC-DC conversion times of interchange to, reduce conversion loss, the purpose of direct current supply mode that Here it is by direct current by reducing by interchange to equipment.At present, every field such as data center, family, factory and shop are all stepping up to take the direct current supply measure.What wherein actively introduce DC power-supply system is data center.As the effective measures that can reduce information technoloy equipment power consumption such as server, the example of introducing DC power-supply system is more and more.The household DC electric power system also comes into one's own day by day.
Summary of the invention
The purpose of patent of the present invention is to design a kind of work and renders a service height, and good stability is with low cost, is convenient to control, a kind of DC power-supply system of flexible operation.The content that patent of the present invention is invented is the unified management of household DC power consumption equipment, direct-flow electricity utilization apparatus in the past such as each LED illuminating lamp all must come to power to LED illumination with a step-down constant-current device, patent of the present invention directly adopts solar photovoltaic generation system, carry out unified DC equipment power supply for whole room by controller, and having back-up source when not having electricity continues to power devices, can come storage battery according to the size of power consumption, to reach optimum state, the key point of heat dissipation technology is to improve the radiating efficiency of LED illumination and other equipment and the thermal impedance in the reduction heat transfer process.This DC power-supply system has solved the problem of a plurality of step-down constant-current devices and has designed back-up source on this basis, has guaranteed that patent structure of the present invention is simple because of power failure causes loss unnecessary, and stability is good during work.
Patent of the present invention solves its technical problem and is achieved through the following technical solutions:
This DC power-supply system, by solar-energy photo-voltaic cell, batteries, storage battery Detection ﹠ Controling circuit, DC-DC power supply, described solar-energy photo-voltaic cell is installed on roof according to the suitable photovoltaic battery panel of the Capacity Selection of power consumption equipment, label 5 is storage battery Detection ﹠ Controling circuit among described Fig. 2, main being responsible for charge in batteries control, the useful life of assurance storage battery.The capacity of described solar-energy photo-voltaic cell calculates the quantity of solar photovoltaic cell panel according to the requirement of load, and described DC-DC power supply is can give load constant electric current under the situation that civil power does not have, and concrete parameter is selected according to the requirement of load.Power by the direct current unification that just can realize current family with top, but difficult point is each other cooperation and computational problem that this requirement to integration capability is quite high.
Surge phenomenon in the various DC power-supply system is mainly produced by two kinds of reasons: external cause and inner reason.External cause mainly comprises: directly hit the direct stroke of AC network or electric power system parts and hit near the earth and on AC network or electric power system parts, induce the indirect stroke of high current and voltage by electromagnetic induction.And inner reason master is the inside surge that produces owing to reasons such as equipment start-stop, line fault and switching actions.Patent of the present invention designs a kind of work and renders a service height, and good stability is convenient to install and transform existing family supply power mode in batches, and flexible operation has a extensive future.
The advantage of patent of the present invention and beneficial effect are:
Existing DC power-supply system and patent of the present invention are carried out contact analysis, and the result shows:
Existing DC power-supply system structure and control are complicated, when misoperation, must cause the damage of DC power-supply system, and the generation that must cause a serious accident in the time of serious concerning personal safety, also is a significant threat sometimes.
This DC power-supply system is installed on the total input-wire place of power consumption equipment, the power consumption equipments all to family have all carried out galvanic unified management, replaced many constant-current decompressions driver element in the past, for example: have several LED illuminating lamps what constant-current decompression driver elements are just arranged.Label 1 directly adopts solar photovoltaic generation system among Fig. 1, carry out unified DC equipment power supply for whole room by controller, carry out energy storage power supply in support by storage battery Detection ﹠ Controling circuit again, use when the direct powering load of process DC-DC power supply has guaranteed the storage battery powering load like this under the situation that civil power does not have is renderd a service, show that according to the control experimental phenomena the designed DC power-supply system of this patent is very reasonable and job stability is than higher from experiment, key is reasonable in design, design ingeniously, so just avoided the shortcoming of many constant-current decompressions of direct current driver element.
Description of drawings
Fig. 1 is the structured flowchart of patent of the present invention;
Fig. 2 is the circuit theory diagrams of patent of the present invention:
Wherein
1 solar-energy photo-voltaic cell 2: direct-flow electricity utilization apparatus
3: batteries 4:DC-DC transducer
5: Detection ﹠ Controling circuit 6: controller
Embodiment
Below by specific embodiment patent of the present invention is described in further detail, following patent of invention is descriptive, is not determinate, can not limit the protection range of patent of the present invention with this.
This DC power-supply system is made of solar-energy photo-voltaic cell, batteries, storage battery Detection ﹠ Controling circuit, DC-DC power supply.
It is the Switching Power Supply of SDZA-25A-5 that described DC-DC power supply is selected model for use, described solar-energy photo-voltaic cell is installed on roof according to the suitable photovoltaic battery panel of the Capacity Selection of power consumption equipment, and its innovative point is: realized the design of many constant-current decompressions of direct current driver element.
Among described Fig. 1 and Fig. 2 label 1 be solar-energy photo-voltaic cell, since among Fig. 2 label 5 be that the control principle of the concrete Detection ﹠ Controling circuit of Detection ﹠ Controling circuit of storage battery is: in power supply just often, J1 gets electric adhesive among Fig. 2, its moving contact and N/O connect, and the end of oppisite phase of LM308 links among backup battery anode and Fig. 2.LM308 and D3, D4 form voltage comparator among Fig. 2, and reference voltage is by D3, D4 decision among Fig. 2.Here form reference voltage with a silicon diode D3 and a voltage stabilizing didoe D4, charging voltage voltage is monitored.When the 2 pin battery tensions of LM308 among Fig. 2 are lower than reference voltage, 6 pin of LM308 output high level among Fig. 2, among Fig. 2 T1 conducting J2 get electric, its moving contact and N/O connection, to charge in batteries, light-emitting diode D6 lights up as the charging indication to supply voltage simultaneously by R5.Change the R5 resistance and can adjust charging current.Along with the charging interval increases, the 2 pin voltages of LM308 increase gradually among Fig. 2, and when voltage during greater than reference voltage, the 6 pin output low levels of LM308 among Fig. 2, T1 disconnects charge circuit by the J2 dead electricity among Fig. 2, realizes automatic charge protection function.When having a power failure, J1 loses power supply among Fig. 2, and its moving contact and N/C connect, and storage battery is given the power supply of DC-DC transducer, automatic switching function when realizing having a power failure.
Show through above-mentioned analysis, because the novel concepts and the unique design of the design of this DC power-supply system, realized that many constant-current decompressions of direct current driver element is integrated in one and carries out the unified management of power use, solved many constant-current decompressions in the past and driven, can improve reliability and direct current supply in use and use effectiveness.Thereby guaranteed its applicability, the performance of detection system and the use value of current household DC equipment and LED illumination have been guaranteed in this design, are a kind of DC power-supply system designs based on solar energy power generating that has than the high innovation character thinking.
Claims (2)
1. DC power-supply system based on independent solar photovoltaic power generation, has controller (6), the solar-energy photo-voltaic cell (1) that is used for providing electric energy that links with the input of controller (6) to system, the equipment (2) and the batteries (3) that link with the output of controller (6), it is characterized in that, described batteries (3) links to each other with DC/DC (4), and being used for giving load when when having a power failure equipment is used storage battery electric provides a more stable direct voltage.
2. the DC power-supply system based on independent solar photovoltaic power generation according to claim 1 is characterized in that, described equipment (2) includes a plurality of power consumption equipments, connects in parallel respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010209344A CN101854074A (en) | 2010-06-25 | 2010-06-25 | Direct current power supply system based on independent solar photovoltaic power generation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010209344A CN101854074A (en) | 2010-06-25 | 2010-06-25 | Direct current power supply system based on independent solar photovoltaic power generation |
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| CN101854074A true CN101854074A (en) | 2010-10-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010209344A Pending CN101854074A (en) | 2010-06-25 | 2010-06-25 | Direct current power supply system based on independent solar photovoltaic power generation |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102790423A (en) * | 2012-08-03 | 2012-11-21 | 张伯敏 | Photovoltaic LED (light-emitting diode) residential lighting power supply |
| TWI423730B (en) * | 2010-10-07 | 2014-01-11 | ||
| CN106679734A (en) * | 2017-03-10 | 2017-05-17 | 衢州学院 | Micro-grid on-line monitoring and fault diagnosis system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000102190A (en) * | 1998-09-24 | 2000-04-07 | Matsushita Electric Works Ltd | Solar battery lighting equipment |
| CN201113514Y (en) * | 2007-09-06 | 2008-09-10 | 何星剑 | Civil solar energy electricity-generating and supplying system |
| US20090152947A1 (en) * | 2007-12-17 | 2009-06-18 | Shay-Ping Thomas Wang | Single chip solution for solar-based systems |
| CN201385685Y (en) * | 2009-03-13 | 2010-01-20 | 浙江大学 | Solar energy signal lamp system for train |
| CN101656428A (en) * | 2008-08-20 | 2010-02-24 | 深圳桑达百利电器有限公司 | Solar energy photovoltaic system and application method thereof |
-
2010
- 2010-06-25 CN CN201010209344A patent/CN101854074A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000102190A (en) * | 1998-09-24 | 2000-04-07 | Matsushita Electric Works Ltd | Solar battery lighting equipment |
| CN201113514Y (en) * | 2007-09-06 | 2008-09-10 | 何星剑 | Civil solar energy electricity-generating and supplying system |
| US20090152947A1 (en) * | 2007-12-17 | 2009-06-18 | Shay-Ping Thomas Wang | Single chip solution for solar-based systems |
| CN101656428A (en) * | 2008-08-20 | 2010-02-24 | 深圳桑达百利电器有限公司 | Solar energy photovoltaic system and application method thereof |
| CN201385685Y (en) * | 2009-03-13 | 2010-01-20 | 浙江大学 | Solar energy signal lamp system for train |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI423730B (en) * | 2010-10-07 | 2014-01-11 | ||
| CN102790423A (en) * | 2012-08-03 | 2012-11-21 | 张伯敏 | Photovoltaic LED (light-emitting diode) residential lighting power supply |
| CN106679734A (en) * | 2017-03-10 | 2017-05-17 | 衢州学院 | Micro-grid on-line monitoring and fault diagnosis system |
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Application publication date: 20101006 |