摘要:Vienna整流器输出电容纹波电流决定输出电容的选型和温升,通常采用估算或仿真的方法进行计算,存在误差大或复杂、不直观等缺点。通过对三相四线制Vienna整流器工作原理的分析,推导出了直流母线电容电流有效值的计算公式,与仿真及实验结果的验算进行比较,误差在5%以内,具有简单、精确等优点,可直接用于直流母线电容的设计。
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