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基于矢量控制的异步电机预测电流控制算法

DOI: 10.13334/j.0258-8013.pcsee.2014.21.007, PP. 3448-3455

Keywords: 异步电机,预测电流控制,矢量控制,鲁棒性,转子磁场定向

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Abstract:

该文提出一种基于异步电机间接矢量控制的预测电流鲁棒控制方法。分析了传统间接矢量控制中电流环比例积分控制器带宽提升受限制的原因,提出基于同步旋转坐标下异步电机数学模型的预测电流控制方法,以提高系统带宽和动态性能。为了增强预测电流控制器的鲁棒性,分析了预测电流控制器使系统不稳定运行的原因,引入鲁棒控制因子来增强系统鲁棒性,降低预测电流控制器对电机参数的敏感度。实验结果表明,与传统的比例积分控制器相比,该文提出的预测电流鲁棒控制能有效增强系统的鲁棒性,提高系统响应速度并且优化系统动态特性。

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