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A high-gain wide-input dual-quasi z-source inverter circuit

An inverter circuit, wide input technology, applied in the direction of converting DC power input to DC power output, electrical components, adjusting electrical variables, etc. stable effect

Active Publication Date: 2020-08-11
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the object of the present invention is to provide a high-gain wide-input double quasi-Z source inverter circuit, which solves the defects of poor boosting capability and small input range of traditional inverters

Method used

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  • A high-gain wide-input dual-quasi z-source inverter circuit
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  • A high-gain wide-input dual-quasi z-source inverter circuit

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the drawings and embodiments.

[0022] Please refer to figure 1 , The present invention provides a dual quasi-Z source inverter circuit with high gain and wide input, comprising a DC power supply, a first quasi-Z source circuit, an inverter, and a second quasi-Z source circuit connected in sequence; the first quasi-Z source The circuit includes a first inductor L1, a second inductor L2, a first electrolytic capacitor C1, a second electrolytic capacitor C2, a first diode D1, a second diode D2, and a first switch S1; the first inductor L1 One end of the first diode D1 is connected to the anode of the first diode D1 and the cathode of the second electrolytic capacitor C2. The cathode of the first diode D1 is connected to the anode of the first electrolytic capacitor C1 and one end of the second inductor L2. The other end of the inductor L2 is connected to the anode of the second electrolytic capacitor C...

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Abstract

The invention relates to a high-gain wide-input double-quasi-Z-source inverter circuit, which is characterized in that the inverter circuit comprises a DC power supply, a first quasi-Z-source circuit,an inverter and a second quasi-Z-source circuit; the inverter circuit comprises a DC power supply, a first quasi-Z-source circuit and a second quasi-Z-source circuit. A DC power supply is respectively connected with input terminal of a first quasi-Z source circuit and a second quasi-Z source circuit; One end of the inverter is connected with a first quasi-Z source circuit, and the other end is connected with a second quasi-Z circuit. As that device voltage stress is small and the device voltage change is small when the input fluctuates, the invention is particularly suitable for working in the work condition of high gain and wide input.

Description

Technical field [0001] The invention relates to the field of inverters, in particular to a dual quasi-Z source inverter circuit with high gain and wide input. Background technique [0002] Out of the need to protect the environment and with the continuous emergence of the energy crisis, the photovoltaic industry in major countries in the world has experienced rapid development. Although photovoltaic power generation has a considerable market share in my country, compared with developed countries, the proportion of new energy power generation in my country is still very limited. In the cost distribution of photovoltaic power generation, inverter cost ranks second. In this context, the research and development of high-efficiency, low-energy, safe and reliable inverters is of great significance for promoting the integration of new energy sources, promoting the healthy development of my country's photovoltaic industry, and achieving clean energy. [0003] With the increase of photovo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/158
CPCH02M3/1584
Inventor 陈艳慧朱康杰江鸿翔
Owner FUZHOU UNIV