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A nonlinearity-feed-forward compensation method for output voltage of matrix converter
Author(s): 
Pages: 74-78
Year: Issue:  7
Journal: Relay

Abstract: 矩阵变换器通常采用基于输出电流方向检测的四步换流策略,但四步换流延迟及半导体器件压降会引起输出电压误差和谐波,降低了矩阵变换器输出电压质量.详细分析电压误差产生的原因,并提出了一种非线性前馈补偿方法.该方法是根据具体的四步换流次序及半导体器件压降,通过查表的方法,预先计算出实际电压误差,再通过前馈补偿输出电压误差,从而减少了输出电压谐波.将该方法应用于V/F控制进行验证,实验结果表明,该方法可以减...
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