A family of resonant DC-link voltage source inverters

P. Donoso Garcia, I. Barbi
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引用次数: 15

Abstract

A family of circuits that can be used as interfaces between the DC voltage supply and the voltage source pulsewidth modulation (PWM) inverter to provide oscillation of DC bus voltage and allow commutation of PWM inverter switches under zero voltage is presented. A technique for reducing device voltage stresses that consists of using a nonlinear resonant capacitor is introduced. To allow the inverter to be regulated by the conventional PWM strategies, a technique is proposed which consists of interrupting the resonant cycle by an auxiliary switch. The principle of operation and a theoretical analysis of one of the topologies are presented. A laboratory prototype of a single-phase inverter regulated by PWM with harmonic elimination has been built and tested. The results of the experimental studies are reported.<>
谐振直流电压源逆变器系列
提出了一种用于直流电源和电压源脉宽调制(PWM)逆变器之间的接口电路,提供直流母线电压的振荡,并允许零电压下PWM逆变器开关的换相。介绍了一种利用非线性谐振电容降低器件电压应力的技术。为了使逆变器能够通过传统的PWM策略进行调节,提出了一种由辅助开关中断谐振周期的技术。介绍了其中一种拓扑的工作原理和理论分析。建立了一种谐波消除PWM调节单相逆变器的实验室样机并进行了测试。报道了实验研究的结果
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CiteScore
1.40
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0.00%
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