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电流增量预测控制策略参数稳定域拓展

, PP. 50-56

Keywords: 永磁同步电机,伺服系统,增量预测控制策略,参数稳定域

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Abstract:

高性能永磁同步电机伺服系统要求快速响应的电流内环以保证系统的高动态性能。电流增量预测控制策略可以获得快速的电流响应速度,但依赖电感参数的准确性。电感参数不准确时,系统稳定性难以保证。本文通过使用更多的电压及电流信息来提高参考电压计算式的阶次,以此拓宽电流增量预测控制策略对电感参数的适应性。该方法对处理器的占空比更新能力或运算速度没有特殊要求,仅需增加少量计算量就可以显著拓宽电感参数稳定域。仿真和实验结果证明了所提方法的有效性与实用性。

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