Inductance model-based sensorless control of the switched reluctance motor drive at low speed
Inductance model-based sensorless control of the switched reluctance motor drive at low speed
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DOI：
10.1109/tpel.2004.836632
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发表时间：
2004-11
影响因子：
6.7
通讯作者：
Hongwei Gao;F. R. Salmasi;Mehrdad Ehsani
中科院分区：
文献类型：
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作者：
Hongwei Gao;F. R. Salmasi;Mehrdad Ehsani
提出了一种开关磁阻电动机（SRM）低速无位置传感器控制方案。每个有源相的增量电感使用该相的终端测量来估计。将估计的相增量电感与表示相增量电感、相电流和转子位置之间的函数关系的分析模型进行比较，以估计转子位置。所提出的无传感器控制方案既不需要额外的硬件，也不需要巨大的存储空间来实现。它可以提供准确的转子位置信息，即使SRM的磁特性由于老化而改变。结合其他基于电感模型的无传感器控制技术，所提出的方法可以用来开发一个基于电感模型的无传感器控制方案运行的SRM从静止到高速。仿真和实验结果验证了所提出的方案。
A sensorless control scheme for the switched reluctance motor (SRM) drive at low speed is presented in this paper. The incremental inductance of each active phase is estimated using the terminal measurement of this phase. The estimated phase incremental inductance is compared to an analytical model, which represents the functional relationships between the phase incremental inductance, phase current, and rotor position, to estimate the rotor position. The presented sensorless control scheme requires neither extra hardware nor huge memory space for implementation. It can provide accurate rotor position information even as the magnetic characteristics of the SRM change due to aging. Combined with other inductance model-based sensorless control techniques, the proposed method can be used to develop an inductance model-based sensorless control scheme to run the SRM from standstill to high-speed. Simulation and experimental results are presented to verify the proposed scheme.