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船舶电力推进中开关磁阻电机直接转矩控制策略

DOI: 10.16411/j.cnki.issn1006-7736.2015.02.018, PP. 98-102

Keywords: 船舶电力推进,开关磁阻电机(SRM),直接转矩控制(DTC),空间电压矢量,磁链和转矩观测器

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Abstract:

采用基于电压矢量的直接转矩控制策略对转矩进行控制,电压矢量控制器采用Bang-Bang滞环控制,磁链观测器采用在线估算同时提高定子电压、电流测量的精度以提高磁链精度,转矩观测器采用自适应神经网络的智能辨识方法获得瞬时转矩.仿真和实验结果表明,直接转矩控制策略在保证电机可靠运行的前提下,实现了转矩在一定范围内的恒定,一定程度上有效抑制了转矩脉动.

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