CN202940747U - Multifunctional inverter - Google Patents
Multifunctional inverter Download PDFInfo
- Publication number
- CN202940747U CN202940747U CN 201220626397 CN201220626397U CN202940747U CN 202940747 U CN202940747 U CN 202940747U CN 201220626397 CN201220626397 CN 201220626397 CN 201220626397 U CN201220626397 U CN 201220626397U CN 202940747 U CN202940747 U CN 202940747U
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- CN
- China
- Prior art keywords
- inverter
- output
- connects
- selector switch
- circuit
- 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
- 239000004065 semiconductor Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- 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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- Inverter Devices (AREA)
Abstract
The utility model discloses a multifunctional inverter. The multifunctional inverter comprises a voltage boosting circuit, a selecting switch and an inverter circuit, wherein an input end of the voltage boosting circuit is connected with an output end of a photovoltaic array; an output end of the voltage boosting circuit is connected with a movable contact of the selecting switch; a first fixed contact of the selecting switch is connected with an output end of the inverter circuit, and a second fixed contact of the selecting switch is connected with an input end of the inverter circuit. The multifunctional inverter has the advantages that through the selection of the selecting switch, direct current after voltage boosting is directly output or is inverted through a full-bridge inverter circuit to output alternating current, the alternating current or the direct current can be selected according to practical requirements, and the utilization rate of electrical energy generated by a solar photovoltaic electricity generation system is improved.
Description
Technical field
The utility model relates to a kind of inverter, relate in particular to a kind ofly realize exchanging, Multifunctional inverter that direct current is selected output.
Background technology
At present, along with oil, the carbon equal energy source critical shortage in the whole world, each state has all stepped up the paces of development solar energy power generating.Photovoltaic generation is according to the photovoltaic effect principle, utilizes solar cell that solar energy is converted into electric energy.No matter be independently use or generate electricity by way of merging two or more grid systems, photovoltaic generating system is mainly the converting direct-current power into alternating-current power that solar components is produced.Yet, in daily life and producing, all adopt DC power supply as power consumption equipments such as the storage battery of electric bicycle, mobile phone, notebook computer, CD players, television set, microwave oven, computer, radio-cassette player, video disc player etc., be that alternating current is converted into direct current through rectifier transformer, using.Simultaneously, China begins to build the high-voltage dc transmission electric wire successively, comprise that electric pressure is positive and negative 500kV(Ge Zhou Ba---Shanghai south bridge line, natural bridge---Guangzhou line, Guizhou---Guangdong line, Three Gorges---the Guangdong line), 50kV(Shanghai---Shengsi island line), 100kV(Ningbo---Zhoushan line), it is positive and negative 800kV extra-high voltage direct-current transmission line that Southern Power Grid Company will build electric pressure, and the direct current that produces for solar energy power generating carries out directly carrying having created advantage.And the conversion efficiency of domestic inverter has had a strong impact on the utilization ratio of solar photovoltaic generation system generation electric energy mostly below 90%.
The utility model content
The purpose of this utility model is to provide a kind of Multifunctional inverter, can select according to the actual requirements output AC electricity or direct current, improves the utilization ratio that solar photovoltaic generation system produces electric energy.
The utility model adopts following technical proposals:
A kind of Multifunctional inverter, comprise booster circuit, selector switch and inverter circuit, the input of booster circuit connects the output of photovoltaic array, the output of booster circuit connects the moving contact of selector switch, the first fixed contact of selector switch connects the output of inverter circuit, and the second fixed contact of selector switch connects the input of inverter circuit.
Described booster circuit comprises the first electric capacity, the first inductance, the first switching tube and the first diode, the first output of photovoltaic array connects the moving contact of selector switch by the first inductance, the first diode, the second output of photovoltaic array connects the positive pole of the first diode by the first switching tube, the second output of photovoltaic array also connects the moving contact of selector switch by the first electric capacity.
The full bridge inverter that described inverter circuit mainly is comprised of first to fourth switching tube, the second to the 5th diode, the second inductance and the second electric capacity.
Described the first switching tube adopts metal-oxide-semiconductor.
Direct current after the utility model is selected to boost by selector switch is directly exported or is carried out inversion output AC electricity through full bridge inverter, can select according to the actual requirements output AC electricity or direct current, improve the utilization ratio that solar photovoltaic generation system produces electric energy.
Description of drawings
Fig. 1 is circuit diagram of the present utility model.
Embodiment
As shown in Figure 1, the utility model comprises booster circuit, selector switch and inverter circuit, the input of booster circuit connects the output of photovoltaic array, the output of booster circuit connects the moving contact K1 of selector switch, the first fixed contact K2 of selector switch connects the output of inverter circuit, and the second fixed contact K3 of selector switch connects the input of inverter circuit.Described booster circuit comprises the first capacitor C 1, the first inductance L 1, the first switching tube Q1 and the first diode D1, the first output of photovoltaic array connects the moving contact K1 of selector switch by the first inductance L 1, the first diode D1, the second output of photovoltaic array connects the positive pole of the first diode D1 by the first switching tube Q1, the second output of photovoltaic array also connects the moving contact K1 of selector switch by the first capacitor C 1.The full bridge inverter that described inverter circuit mainly is comprised of first to fourth switching tube V1, V2, V3, V4, the second to the 5th diode VD1, VD2, VD3, VD4, the second inductance L 2 and the second capacitor C 2.Full bridge inverter does not repeat them here for existing ripe inverter circuit.The first switching tube can adopt metal-oxide-semiconductor.
The utility model in use, conducting and the cut-off of booster circuit by the first switching tube Q1 boosted to the direct voltage of photovoltaic array output.Direct current after selector switch can be used for selecting to boost is directly exported or is carried out inversion output AC electricity through full bridge inverter.Full bridge inverter can carry out PWM to the first switching tube V1, the 4th switching tube V4 and second switch pipe V2, the 3rd switching tube V3 by controller to be controlled, and presses with net and keeps same-phase thereby regulate the inverter output current, reaches output power factor and be 1 purpose.When the moving contact K1 that selects switch is communicated with the first fixed contact K2 of selector switch, but the utility model direct output of DC current is incorporated into the power networks with DC transmission line or for to user side; When the moving contact K1 that selects switch was communicated with the second fixed contact K3 of selector switch, the utility model directly output AC was electric, was incorporated into the power networks with AC power line or for to user side.
Claims (4)
1. Multifunctional inverter, it is characterized in that: comprise booster circuit, selector switch and inverter circuit, the input of booster circuit connects the output of photovoltaic array, the output of booster circuit connects the moving contact of selector switch, the first fixed contact of selector switch connects the output of inverter circuit, and the second fixed contact of selector switch connects the input of inverter circuit.
2. Multifunctional inverter according to claim 1, it is characterized in that: described booster circuit comprises the first electric capacity, the first inductance, the first switching tube and the first diode, the first output of photovoltaic array connects the moving contact of selector switch by the first inductance, the first diode, the second output of photovoltaic array connects the positive pole of the first diode by the first switching tube, the second output of photovoltaic array also connects the moving contact of selector switch by the first electric capacity.
3. Multifunctional inverter according to claim 2, is characterized in that: the full bridge inverter that described inverter circuit mainly is comprised of first to fourth switching tube, the second to the 5th diode, the second inductance and the second electric capacity.
4. Multifunctional inverter according to claim 3, is characterized in that: described the first switching tube employing metal-oxide-semiconductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220626397 CN202940747U (en) | 2012-11-23 | 2012-11-23 | Multifunctional inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220626397 CN202940747U (en) | 2012-11-23 | 2012-11-23 | Multifunctional inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202940747U true CN202940747U (en) | 2013-05-15 |
Family
ID=48324969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220626397 Expired - Fee Related CN202940747U (en) | 2012-11-23 | 2012-11-23 | Multifunctional inverter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202940747U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102957331A (en) * | 2012-11-23 | 2013-03-06 | 郑州计量节能检测中心 | Multifunctional inverter |
-
2012
- 2012-11-23 CN CN 201220626397 patent/CN202940747U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102957331A (en) * | 2012-11-23 | 2013-03-06 | 郑州计量节能检测中心 | Multifunctional inverter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130515 Termination date: 20151123 |