【摘要】 针对传统直接瞬时转矩控制（DITC）由于未考虑各相绕组的输出转矩随转子位置变化而采用单一的控制策略，造成换相期间转矩脉动较大的问题，提出了一种新型DITC方法来抑制开关磁阻电机（SRM）的转矩脉动。按照电机绕组的电感变化规律对导通周期进行区域划分，根据电机绕组在各导通区域输出转矩能力的变化，对各区域分别设计滞环策略，以实现在整个导通周期始终采用输出转矩能力较大的电机相的内滞环来调节转矩误差，进一步减小SRM的转矩脉动。并针对DITC效率偏低的问题，通过对关断角的优化设计以及对开通角的离线寻优，来提高电机效率。仿真分析和实验结果表明，所提方法有效地减小了SRM的转矩脉动，并提升了电机效率。更多还原

【Abstract】 The traditional direct instantaneous torque control(DITC) adopts a single control strategy without considering the output torque change of each phase winding with the rotor position,resulting in large torque ripple during commutation. Therefore, a new DITC method is proposed to suppress the torque ripple of switched reluctance motor(SRM). The conduction period is divided into regions according to the inductance change rule of the motor winding, and proper hysteresis strategies are designed for each region based on the output torque capacity changes in each conduction region.Hence, the internal hysteresis loop of the motor phase with large output torque capacity is used to adjust the torque error in the whole conduction cycle, and the torque ripple of SRM is further reduced.Moreover, the efficiency of the motor is improved by adjusting the turn-off angle online and optimizing the turn-on angle off-line. Simulation and experimental results verify that the proposed method effectively reduces the torque ripple of the SRM and improves the motor efficiency.更多还原