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基于双矢量MPCC的无电解电容电机驱动系统谐振抑制方法
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CN120729101B
Improve control effect
Improve control
本发明公开了一种基于双矢量MPCC的无电解电容电机驱动系统谐振抑制方法,首先利用电压模型预测出目标电压矢量的区间范围,然后根据不同的区间选取相应的待选电压矢量,最后通过设计的代价函数逐一比较不同的矢量对最后得到最优的两个电压矢量及相应的作用时间,直接作用于逆变器上。本发明在实现降低电流控制误差的同时大幅度降低计算的复杂度和运算时间,其次基于网侧电感并联电阻的方式提出了在q轴电流上叠加等效阻尼电流的方法,并根据二阶系统的响应特性选取合适的系统阻尼,直接自动计算出最佳的虚拟电阻阻值,降低网侧电流的总谐波畸变率,提高了驱动系统稳定性。
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ZHEJIANG UNIV
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