【摘要】 针对开关磁阻电机(SRM)高速运行时，由于反电动势大，使得相电流难以达到较高水平，导致电机的输出转矩下降，恒功率调速范围受限的问题，开展高速时电流连续模式(CCM)的控制规律研究来提高电机高速输出性能。首先，对CCM稳定运行条件进行分析，设计了一种基于转矩闭环的导通角控制策略以确保CCM稳定运行；其次，研究了角度控制参数对SRM输出性能的影响，得出输出转矩随控制参数的变化规律。为进一步改善电机运行效率，又以最大转矩安培比(MTPA)为优化目标对不同工况进行了控制参数优化。仿真和实验结果表明，所提方法极大地拓宽了SRM的恒功率运行范围，并提高了电机运行效率。更多还原

【Abstract】 At high speed, the phase current of switched reluctance motor(SRM) is difficult to reach a high level due to the high back electromotive force, resulting in the output torque decreasing and the constant power speed range being limited.To address this problem, the control law of current continuous mode(CCM) at high speed is investigated to improve the high-speed output performance of the motor.Firstly, the stable operation condition of the current continuous mode is analyzed, and a conduction angle control strategy based on the torque closed-loop is designed for ensuring the stable operation of the CCM.Secondly, the influence of angle control parameters on the output performance of the SRM is investigated to obtain the variation rule of the output torque with the control parameters.To further improve the operating efficiency of the motor, the control parameters are also optimized for different operating conditions with the maximum torque per ampere(MTPA) as the optimization objective.Simulation and experimental results verify that the proposed method significantly extends the constant power operation range of SRM and improves the motor operation efficiency.更多还原