A new approach to model switched reluctance motor drive application to dynamic performance prediction, control and design
A new approach to model switched reluctance motor drive application to dynamic performance prediction, control and design
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DOI：
10.1109/pesc.1998.703469
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发表时间：
1998-05
期刊：
影响因子：
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通讯作者：
B. Fahimi;G. Suresh;J. Mahdavi;M. Ehsami
中科院分区：
文献类型：
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作者：
B. Fahimi;G. Suresh;J. Mahdavi;M. Ehsami
提出了一种以相电流为状态变量的开关磁阻电动机（SRM）模型。相位电感的位置依赖性由有限数量的傅立叶级数项表示，电感随相电流的非线性变化由多项式函数表示。傅立叶级数中的项的系数由对准位置电感、未对准位置电感和从对准位置起的中间点处的电感确定。所提出的模型的主要优点是，它需要最少的测量量，并预测驱动系统的完整动态性能，即，恒定转矩、恒定功率和自然模式区域。任何类型的控制策略都可以结合在模拟中。对一个低压大电流开关磁阻电机驱动器进行了仿真，并与有限元和实验结果进行了比较。
In this paper a new model for the switched reluctance motor (SRM) based on phase currents as state variables is presented. Position dependency of the phase inductance is represented by a limited number of Fourier series terms and the nonlinear variation of the inductance with phase current is expressed by means of polynomial functions. The coefficients of the terms in the Fourier series are determined by the aligned position inductance, the unaligned position inductance and the inductance at the midway point from the aligned position. The main advantage of the proposed model is that it requires minimum amount of measurements and predicts the complete dynamic performance of the drive system, viz., constant torque, constant power and natural mode regions. Any type of control strategy can be incorporated in the simulation. A low-voltage, high current SRM drive has been simulated and the results are validated by comparing with finite element and experimental results.