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首页> 外文期刊>Journal of power electronics >An Optimized Control Method Based on Dual Three-Level Inverters for Open-end Winding Induction Motor Drives
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An Optimized Control Method Based on Dual Three-Level Inverters for Open-end Winding Induction Motor Drives

机译：基于双三电平逆变器的开放式绕组感应电动机驱动器的优化控制方法

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摘要

An optimized space vector pulse width modulation (SVPWM) method with common mode voltage elimination and neutral point potential balancing is proposed for an open-end winding induction motor. The motor is fed from both of the ends with two neutral point clamped (NPC) three-level inverters. In order to eliminate the common mode voltage of the motor ends and balance the neutral point potential of the DC link, only zero common mode voltage vectors are used and a balancing control factor is gained from calculation in the strategy. In order to improve the harmonic characteristics of the output voltages and currents, the balancing control factor is regulated properly and the theoretical analysis is provided. Simulation and experimental results show that by adopting the proposed method, the common mode voltage can be completely eliminated, the neutral point potential can be accurately balanced and the harmonic performance for the output voltages and currents can be effectively improved.
机译：针对开放式绕组感应电动机，提出了一种具有共模电压消除和中性点电势平衡的优化空间矢量脉宽调制方法。电机的两端由两个中性点钳位（NPC）三电平逆变器供电。为了消除电动机端部的共模电压并平衡直流母线的中性点电位，仅使用零个共模电压矢量，并从该策略的计算中获得平衡控制因子。为了改善输出电压和电流的谐波特性，适当地调节了平衡控制因子，并提供了理论分析。仿真和实验结果表明，采用该方法可以完全消除共模电压，可以准确平衡中性点电位，可以有效提高输出电压和电流的谐波性能。

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