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电工技术学报 2015

PWM调制模式对TSMC-S/G系统的影响

, PP. 94-102

刘晓宇,周波,梁莹

Keywords: 双级矩阵变换器起动/发电系统,PWM调制模式,母线电流,安全换流,转矩脉动,非导通相电流

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Abstract:

将双级矩阵变换器（TSMC）引入起动/发电系统,构成基于TSMC的新型起发系统（TSMC-S/G系统）。系统起动时采用三相六拍控制策略,并对TSMC采用PWM调制进行电流调节。针对系统特点,详细分析了不同PWM调制模式对TSMC母线电流、安全换流策略、转矩脉动以及非导通相端电压、电流的影响,研究了各种调制模式的特点,提出了优化的调制策略,最终确定了最适合TSMC-S/G系统起动的调制模式。仿真分析与实验结果均验证了理论分析的正确性与可行性。

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