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High-gain single-phase inverter, control method and three-phase inverter

A single-phase inverter, high-gain technology, applied in the direction of irreversible DC power input conversion to AC power output, AC power input conversion to DC power output, output power conversion devices, etc.

Active Publication Date: 2021-04-09
SHENZHEN GROWATT NEW ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to provide a high-gain single-phase inverter, a control method and a three-phase inverter to solve the problem that the existing inverter can only achieve a maximum gain of 1 times

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[0029] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Several embodiments of the invention are shown in the drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present invention will be thorough and complete.

[0030] It should be noted that when an element is referred to as being “fixed on” another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only.

[0031] Unless otherwise def...

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Abstract

The present invention provides a high-gain single-phase inverter, including a DC power supply, a first inductance, a second inductance, a first capacitor, a second capacitor, a second bidirectional switch, a first bidirectional switch, a fifth switching tube, a Five diodes. The above-mentioned high-gain single-phase inverter, when the gain to be achieved <0 or the gain to be achieved>1, works in the first working mode, which is the discontinuous inverter working mode at this time, when 0

Description

technical field [0001] The invention relates to the technical field of inverters, in particular to a high-gain single-phase inverter, a control method and a three-phase inverter. Background technique [0002] Inverters are divided into voltage source inverters and current source inverters, and most of the traditional voltage source inverters are step-down circuits, that is, the output AC voltage is lower than the input DC voltage. Therefore, at present, many applications are to add a step-up circuit (such as Boost circuit) before the inverter circuit, so that the inverter becomes a two-stage structure, which will increase the volume and reduce the stability of the system, so the study of single-stage high-gain The inverter is very important, so some scholars have proposed Z-source inverter, which is an impedance network composed of two inductors and two capacitors, which can realize the function of boosting voltage, so it has been widely studied. [0003] For the leakage cu...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M7/48H02M7/493
CPCH02M7/48H02M7/493
Inventor 丁永强汪洪亮吴良材
Owner SHENZHEN GROWATT NEW ENERGY TECH