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Soft switch back exciting converter used for solar energy photovoltaic generation incorporate in power network

A flyback inverter, solar photovoltaic technology, applied in photovoltaic power generation, conversion of irreversible DC power input to AC power output, high-efficiency power electronic conversion, etc., can solve the problem that the inverter cannot improve switching loss and power solution at the same time Coupling and other issues

Inactive Publication Date: 2008-11-12
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the existing inverters for solar photovoltaic grid-connected power generation cannot simultaneously improve switching loss and power decoupling, the present invention provides a soft-switching flyback inverter for solar photovoltaic grid-connected power generation

Method used

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  • Soft switch back exciting converter used for solar energy photovoltaic generation incorporate in power network
  • Soft switch back exciting converter used for solar energy photovoltaic generation incorporate in power network
  • Soft switch back exciting converter used for solar energy photovoltaic generation incorporate in power network

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Embodiment Construction

[0032] see Figure 4 As shown, the soft-switching flyback inverter in this specific embodiment consists of a switch tube drive circuit 1, a solar panel photovoltaic array PV, a flyback transformer T, a first controllable switch tube S3, a second controllable switch tube S4, The third controllable switch tube S2, the first diode D3, the second diode D4, the output capacitor C3, and the first inductor L f , input capacitor C1, second inductance L1, first capacitor C2, second capacitor C s1 , the third capacitor C s2 , the fourth controllable switch tube S1, the third diode D1 and the fourth diode D2, the photovoltaic array PV of the solar panel is located on the same side of the primary winding L2 of the flyback transformer T, and the secondary winding of the flyback transformer T The non-identical end of the first winding L3 is connected to the collector of the first controllable switch tube S3, the emitter of the first controllable switch tube S3 is connected to the positive...

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Abstract

This invention relates to solar volt flexible switch reverser, which belongs to solar volt power generation technique field, which exerts direct voltage of the solar energy board into input capacitor two ends, wherein, input capacity end is connected to second induction end; other end of second induction is connected to integration electrode and first capacitor end; the first capacitor other end is connected to the encode end of third, second tubes and emission electrode of thirst control switch.

Description

technical field [0001] The invention belongs to the technical field of solar photovoltaic grid-connected power generation, and specifically relates to a soft-switching flyback inverter that can be used for solar photovoltaic (Photovoltaic, PV) grid-connected power generation. Background technique [0002] With the growth of traditional energy consumption, the deteriorating ecological environment and the requirement of sustainable human development, all countries in the world are actively developing non-polluting and renewable new energy. Solar energy resources are abundant, widely distributed, renewable, and do not pollute the environment, making solar photovoltaic power generation the mainstream of new energy development. The photovoltaic inverter is the core part of the photovoltaic power generation system, and its efficiency and reliability will directly affect the performance and investment of the entire photovoltaic system. In a traditional photovoltaic power generatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M7/44
CPCY02E10/56Y02B70/1491Y02B70/10
Inventor 谭光慧纪延超王建赜李明成
Owner HARBIN INST OF TECH
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