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dan rao zu ci xuan fu kai guan ci zu dian ji wu jing xiang wei yi chuan gan qi kong zhi
Author(s): 
Pages: 259-267
Year: Issue:  8
Journal: Transactions of China Electrotechnical Society

Keyword:  Single-windingbearingless switched reluctance motorrelevance vector machine(RVM)adaptive algorithmdisplacement sensorless;
Abstract: 为实现单绕组磁悬浮开关磁阻电机的高性能径向位移自检测,研究一种基于自适应相关向量机的无径向位移传感器控制策略。基于相关向量机回归理论,将电机在有位移传感器运行条件下获得的磁链、电流、转角和位移作为样本数据,通过对样本数据的训练与学习,构建电机转子径向位移的非线性相关向量机预测模型。针对电机不同运行状态下的样本特性,提出了优化相关向量机模型参数的自适应算法,以进一步提高预测模型的泛化能力和估计精度。针对三相12/8极实验样机,设计闭环控制系统,开展相关的仿真和实验研究。结果表明所设计控制策略在仿真和实验条件下均能正确地估计出单绕组磁悬浮开关磁阻电机的转子径向位移,且实时性较好、预测精度较高。
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