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Research on a Novel Control Method of a HF Link DC/AC Converter
Author(s): 
Pages: 19-22,36
Year: Issue:  6
Journal: TRANSACTIONS OF CHINA ELECTROTECHNICAL SOCIETY

Keyword:  高频环节移相控制零电压开关重叠换相谐波分析;
Abstract: 在简要论述了具有高频环节的DC/AC变换器特点基础上,提出了一种基于移相控制思想的控制方法,该方法可以使交-交变频器的所有开关都在零电压条件下开通和关断,而且可以安全地重叠换相,从而有利于高频变压器漏感中储能放电.同时也提出将用于通用型直流电压源逆变器的PWM波生成方法,经过同步处理后,可以应用到该交-交变频器中.本文以空间电压矢量生成软化PWM波为例,进行了输出电压的谐波分析,并且针对三相感应电动机负载,进行了实验研究,实验结果表明上述控制方法是正确的.
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