CN202005034U - Buck-boost bidirectional conversion circuit for photovoltaic LED illumination - Google Patents
Buck-boost bidirectional conversion circuit for photovoltaic LED illumination Download PDFInfo
- Publication number
- CN202005034U CN202005034U CN2011200745336U CN201120074533U CN202005034U CN 202005034 U CN202005034 U CN 202005034U CN 2011200745336 U CN2011200745336 U CN 2011200745336U CN 201120074533 U CN201120074533 U CN 201120074533U CN 202005034 U CN202005034 U CN 202005034U
- Authority
- CN
- China
- Prior art keywords
- circuit
- relay
- switching tube
- inductance
- earth point
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
A buck-boost bidirectional conversion circuit for photovoltaic LED illumination comprises a Zeta converter and a Sepic (single-ended primary-inductor converter), wherein the Zeta converter comprises a relay K1, a switch tube VS1, an inductor L1, a capacitor C1 and a freewheeling diode VD2. The Sepic comprises a relay K2, a switch tube VS2, an inductor L2, a capacitor C1 and a freewheeling diode VD1. The buck-boost bidirectional conversion circuit enables effective reduction of cost of a photovoltaic LED illuminating system, improved flexibility of a circuit and improved system efficiency and reliability.
Description
Technical field
The utility model relates to a kind of two-way changing circuit, particularly relates to the two-way changing circuit that a kind of photovoltaic LED lighting is pressed with liftable.
Background technology
It is the relatively independent DC/DC translation circuit structures of two covers that existing photovoltaic LED lighting system adopts photovoltaic generation, battery charging circuit and LED constant-current drive circuit, and system exists complex structure, low, the not high shortcoming of efficient of reliability.Reversible transducer is introduced in the photovoltaic lighting system, can be simplified circuit structure, improve the performance of system and the efficient of raising system.If but adopt single boosting or buck functionality two-way changing circuit, and can reduce the scope of application and the flexibility of system, particularly under the situation that intensity of illumination weakens or the storage battery electric energy reduces, can not well satisfy the work of LED lighting circuit.
Summary of the invention
The purpose of this utility model is exactly in order to overcome the deficiency in the above-mentioned background technology, the two-way changing circuit that provides a kind of photovoltaic LED lighting to use, it can improve the whole efficiency of solar illuminating system effectively, and can effectively reduce the flexible and practical of cost enhanced system, key equipment can be carried out the fault electrical isolation fast when the improvement of circuit is broken down in system, improve the reliability of system greatly.
The technical solution of the utility model is:
The two-way changing circuit that a kind of photovoltaic LED lighting is pressed with liftable, comprise Zeta converter and Sepic converter, wherein the Zeta converter comprises relay K 1, switching tube VS1, inductance L 1, capacitor C 1, fly-wheel diode VD2, the Sepic converter comprises relay K 2, switching tube VS2, inductance L 2, capacitor C 1, fly-wheel diode VD1, import contact with the photovoltaic cell that has that relay K 1 is joined, the circuit that load contacts and switching tube VS1 are in parallel with fly-wheel diode VD1, another termination capacitor C 1 of circuit after this parallel connection, import contact and inductance L 2 with the storage battery that has that relay K 2 is joined, switching tube VS2 is in parallel with fly-wheel diode VD2, circuit one after this parallel connection terminates between capacitor C 1 and the inductance L 2, the other end is connected on the circuit between left earth point and the right earth point, inductance L 1 one terminates between switching tube VS1 and the capacitor C 1, the other end is connected on the circuit between left earth point and the right earth point, and capacitor C 2 one ends connect load contacts and relay K 1, and the other end is connected on the circuit between left earth point and the right earth point.
The control end of above-mentioned relay K 1, relay K 2, switching tube VS1, switching tube VS2 all links to each other with a controller respectively, and controlled device is controlled.
The beneficial effects of the utility model are can reduce the cost of photovoltaic LED lighting system effectively, improve the flexibility of circuit and improve the efficient and the reliability of system.
Description of drawings
Further specify the utility model below in conjunction with the drawings and specific embodiments.
Fig. 1 is a control circuit schematic diagram of the present utility model;
Fig. 2 is the schematic diagram of an embodiment of the present utility model.
Embodiment
The two-way changing circuit of photovoltaic LED lighting as shown in Figure 1, comprise diode (D1), relay (K1, K2), inductance (L1, L2), electric capacity (C1, C2), switching tube (VS1, VS2), fly-wheel diode (VD1, VD2), its repeat circuit (K1), switching tube (VS1), inductance (L1), electric capacity (C1), fly-wheel diode (VD2) is formed the Zeta converter; Its repeat circuit (K2), switching tube (VS2), inductance (L2), electric capacity (C1), fly-wheel diode (VD1) is formed the Sepic converter; Relay (K1) is connected on photovoltaic cell input contact (1), load output contact (2) and the main line, and relay (K2) is connected on the circuit of accumulator output end (4).Switching tube (VS1) and fly-wheel diode (VD1) also are connected on the circuit, and the circuit one after this parallel connection terminates between electric capacity (C1) and the inductance (L2), and the other end is connected on the circuit between left earth point (3) and the right earth point (5).
As shown in Figure 2: under the battery charger operation mode, switching controls switch relay K1 connects the photovoltaic cell power supply, and the electric energy of opto-electronic conversion passes through charge tunnel (Zeta converter) to charge in batteries.After the parameters such as controller collection photovoltaic cell voltage and electric current, battery tension, by the maximal power tracing control algolithm, the control signal duty ratio of control switch pipe (VS1), thus realize charge function.Under the discharge mode of operation, switching controls switch relay (K2) connects the LED lighting load, and storage battery is powered to LED.The electric energy of storage battery passes through discharge channel (Sepic converter) to the charge in batteries accumulation of energy.After the parameters such as controller collection LED current/voltage, change the duty ratio of switching tube (VS2) control signal, thereby realize the constant current control of LED lighting load.When detecting event of failures such as output short-circuit, overcurrent, overvoltage when controller and taking place; relay (K1) switches to load-side rapidly; switching tube (VS1) drive signal is closed; relay (K2) disconnects; realize the quick electrical isolation of storage battery, photovoltaic cell and converter; reduce the coverage of fault, protect key core equipment, further improved the reliability of system.The experiment proved that the utility model can reduce the efficient and the reliability of the cost of photovoltaic LED lighting system, the flexibility that improves circuit and raising system effectively.
The content that is not described in detail in this specification belongs to this area professional and technical personnel's known prior art.
Claims (2)
1. the photovoltaic LED lighting two-way changing circuit of pressing with liftable, it is characterized in that this circuit comprises Zeta converter and Sepic converter, wherein the Zeta converter comprises relay (K1), switching tube (VS1), inductance (L1), electric capacity (C1), fly-wheel diode (VD2), the Sepic converter comprises relay (K2), switching tube (VS2), inductance (L2), electric capacity (C1), fly-wheel diode (VD1), import contact with the photovoltaic cell that has that relay (K1) joins, load contacts and switching tube (VS1) and fly-wheel diode (VD1) circuit in parallel, another termination capacitor of circuit after this parallel connection (C1), import contact and inductance (L2) with the storage battery that has that relay (K2) joins, switching tube (VS2) is in parallel with fly-wheel diode (VD2), circuit one after this parallel connection terminates between electric capacity (C1) and the inductance (L2), the other end is connected on the circuit between left earth point and the right earth point, inductance (L1) one terminates between switching tube (VS1) and the electric capacity (C1), the other end is connected on the circuit between left earth point and the right earth point, electric capacity (C2) end connects load contacts and relay (K1), and the other end is connected on the circuit between left earth point and the right earth point.
2. the two-way changing circuit that photovoltaic LED lighting as claimed in claim 1 is pressed with liftable is characterized in that described relay (K1, K2), and the control end of switching tube (VS1, VS2) all links to each other with a controller respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200745336U CN202005034U (en) | 2011-03-21 | 2011-03-21 | Buck-boost bidirectional conversion circuit for photovoltaic LED illumination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200745336U CN202005034U (en) | 2011-03-21 | 2011-03-21 | Buck-boost bidirectional conversion circuit for photovoltaic LED illumination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202005034U true CN202005034U (en) | 2011-10-05 |
Family
ID=44707758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200745336U Expired - Fee Related CN202005034U (en) | 2011-03-21 | 2011-03-21 | Buck-boost bidirectional conversion circuit for photovoltaic LED illumination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202005034U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102548154A (en) * | 2012-02-07 | 2012-07-04 | 黄克亚 | Control device for solar light-emitting diode (LED) lighting system |
| CN103025003A (en) * | 2012-11-30 | 2013-04-03 | 苏州市职业大学 | Integrated control drive device for solar light-emitting diode (LED) illumination |
| CN103267258A (en) * | 2013-05-23 | 2013-08-28 | 宁夏新航能源环境科技有限公司 | Solar lighting device and method |
| CN103312168A (en) * | 2013-05-09 | 2013-09-18 | 燕山大学 | Bidirectional double-input ZETA direct-current converter and power distribution method thereof |
| CN107517001A (en) * | 2017-09-20 | 2017-12-26 | 重庆聚陆新能源有限公司 | A kind of DC/DC converters of restructural |
| CN113346589A (en) * | 2021-06-10 | 2021-09-03 | 浙江交通职业技术学院 | Battery management system with bidirectional voltage-regulating charge-discharge function and management method |
| WO2023179142A1 (en) * | 2022-03-21 | 2023-09-28 | 深圳锐盟半导体有限公司 | Driver circuit and piezoelectric actuator |
-
2011
- 2011-03-21 CN CN2011200745336U patent/CN202005034U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102548154A (en) * | 2012-02-07 | 2012-07-04 | 黄克亚 | Control device for solar light-emitting diode (LED) lighting system |
| CN103025003A (en) * | 2012-11-30 | 2013-04-03 | 苏州市职业大学 | Integrated control drive device for solar light-emitting diode (LED) illumination |
| CN103312168A (en) * | 2013-05-09 | 2013-09-18 | 燕山大学 | Bidirectional double-input ZETA direct-current converter and power distribution method thereof |
| CN103267258A (en) * | 2013-05-23 | 2013-08-28 | 宁夏新航能源环境科技有限公司 | Solar lighting device and method |
| CN107517001A (en) * | 2017-09-20 | 2017-12-26 | 重庆聚陆新能源有限公司 | A kind of DC/DC converters of restructural |
| CN113346589A (en) * | 2021-06-10 | 2021-09-03 | 浙江交通职业技术学院 | Battery management system with bidirectional voltage-regulating charge-discharge function and management method |
| WO2023179142A1 (en) * | 2022-03-21 | 2023-09-28 | 深圳锐盟半导体有限公司 | Driver circuit and piezoelectric actuator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202005034U (en) | Buck-boost bidirectional conversion circuit for photovoltaic LED illumination | |
| CN203617954U (en) | Novel wind and light storage combination power generation system | |
| CN103684214A (en) | Multi-mode wind-and-solar electricity generation system | |
| CN203120214U (en) | Control and driving integration apparatus used for solar energy LED illumination | |
| CN102548154A (en) | Control device for solar light-emitting diode (LED) lighting system | |
| CN203243061U (en) | MPPT solar controller | |
| CN103312153B (en) | A kind of parallel multi input coupling inductance buck-boost converter | |
| CN103731039A (en) | Two-way direct current converter with high conversion efficiency | |
| CN103025003A (en) | Integrated control drive device for solar light-emitting diode (LED) illumination | |
| CN203522307U (en) | Wind-light-storage battery supplementary electricity generation device based on coupling inductance inverter | |
| CN104270085A (en) | DC/DC conversion circuit in solar photovoltaic power generation system | |
| CN104638746A (en) | Two-way alternative charge-discharge solar photovoltaic controller | |
| CN103532480A (en) | Power device of high-voltage direct current power transmission line fault monitoring terminal | |
| CN104734326A (en) | Solar power supply and mains supply complementary usage regulation and control device | |
| CN201194436Y (en) | Solar energy LED road lamp controller | |
| CN208589785U (en) | A kind of system for chain type energy storage structure that can eliminate secondary pulsation | |
| CN201383693Y (en) | Solar charge/discharge controller | |
| CN103312154B (en) | A kind of tandem multi input coupling inductance buck-boost converter | |
| CN203645388U (en) | Two-way alternative charge-discharge solar photovoltaic controller | |
| CN203312866U (en) | Mobile power supply | |
| CN202798466U (en) | Isolated-type new energy power supply unit based on three-port power converter | |
| CN201690251U (en) | Storage battery charging circuit based on photovoltaic power generation | |
| CN107401720A (en) | One kind carries stand-by power supply solar LED street lamp | |
| CN203661372U (en) | Solar street lamp double-power source automatic switching circuit | |
| CN107396486A (en) | A kind of solar LED street lamp far-end monitoring system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20140321 |