In this paper, unipolar excitation-based speed sensorless vector-controlled switched reluctance motor (SRM) drive is addressed. The use of position/speed sensors has few apprehensions in terms of price, dependability, compactness, especially from electric vehicle (EV) application view point. Therefore, for speed/torque control of SRM, it is mandatory to have some estimation technique which estimates the speed/position satisfactorily and with ease. In this paper, F-MRAS (flux-based model reference adaptive system) speed estimator is employed for estimating the speed/position. The reason for selection of this speed estimator is because of its simplicity, no large lookup table requirement and no external circuitry requirement for pulses injection. This estimator depends on stator resistance of the machine. Therefore, to make the speed estimator robust to stator resistance variations, on-line estimation of the resistance and its compensation is required. From this view point, a novel stator resistance estimator is proposed which estimates the resistance on-line. Further, this paper discusses in detail about the stability analysis of proposed resistance estimator and F-MRAS-based speed estimator. The speed estimator in combination with the proposed resistance estimator performs well in both motoring and regeneration modes. An exhaustive simulation of the drive has been carried out in MATLAB/SIMULINK. Also, the results are confirmed experimentally on a dSPACE-1104 platform.

在本文中，解决了基于单极激励的无速度矢量控制开关磁阻电动机（SRM）驱动器。位置/速度传感器的使用在价格，可靠性，紧凑性方面几乎没有什么问题，特别是从电动汽车（EV）应用的角度来看。因此，对于SRM的速度/转矩控制，必须具有一些令人满意的并且容易地估计速度/位置的估计技术。在本文中，F-MRAS（基于流量的模型参考自适应系统）速度估计器用于估计速度/位置。选择该速度估算器的原因是因为它简单，不需要大的查找表并且不需要用于脉冲注入的外部电路。该估计器取决于电机的定子电阻。因此，为了使速度估算器对定子电阻变化具有鲁棒性，需要对电阻及其补偿进行在线估算。从这个观点出发，提出了一种新颖的在线估计定子电阻的估计器。此外，本文详细讨论了所提出的电阻估算器和基于F-MRAS的速度估算器的稳定性分析。速度估算器与建议的电阻估算器结合使用在电动和再生模式下均表现良好。在MATLAB / SIMULINK中对驱动器进行了详尽的仿真。同样，结果在dSPACE-1104平台上通过实验得到了证实。提出了一种新颖的在线估计定子电阻的方法。此外，本文详细讨论了所提出的电阻估算器和基于F-MRAS的速度估算器的稳定性分析。速度估算器与建议的电阻估算器结合使用在电动和再生模式下均表现良好。在MATLAB / SIMULINK中对驱动器进行了详尽的仿真。同样，结果在dSPACE-1104平台上通过实验得到了证实。提出了一种新颖的在线估计定子电阻的方法。此外，本文详细讨论了所提出的电阻估算器和基于F-MRAS的速度估算器的稳定性分析。速度估算器与建议的电阻估算器结合使用在电动和再生模式下均表现良好。在MATLAB / SIMULINK中对驱动器进行了详尽的仿真。同样，结果在dSPACE-1104平台上通过实验得到了证实。在MATLAB / SIMULINK中对驱动器进行了详尽的仿真。同样，结果在dSPACE-1104平台上通过实验得到了证实。在MATLAB / SIMULINK中对驱动器进行了详尽的仿真。同样，结果在dSPACE-1104平台上通过实验得到了证实。