摘要
针对永磁同步电机(Permanent Magnet Synchronous Motor,PMSM)驱动系统效率低的问题,提出一种改进的最小损耗控制策略。设计新型趋近律的滑模速度控制器调整速度外环,结合最小损耗控制(Loss Minimization Control,LMC)在保证驱动系统稳定性和快速性的情况下,降低了永磁同步电机的铁损耗和铜损耗,从而提高电机的效率。通过可变电压控制(Variable Voltage Control,VVC),由双向DC/DC变换器实时调整母线电压,还可降低电流谐波,从而提高逆变器的效率。通过仿真对比两种电流内环控制,仿真结果表明,该策略有效提升电动汽车驱动系统的效率。
Aiming at the problem that the loss of Permanent Magnet Synchronous Motor(PMSM)drive system reduces the battery life of electric vehicles on one charge,an improved minimum loss control strategy is proposed.A new approach law sliding mode speed controller is designed to adjust the speed outer loop,combined with the Loss Minimization Control(LMC)to reduce the iron loss of the permanent magnet synchronous motor while ensuring the stability and rapidity of the drive system and copper losses,thereby increasing the efficiency of the motor.Through Variable Voltage Control(VVC),the bus voltage is adjusted in real time by the bidirectional DC/DC converter,and the current harmonics can also be reduced,thereby improving the efficiency of the inverter.The simulation results show that this strategy can effectively improve the efficiency of the electric vehicle drive system.
作者
张怡
张汝通
吴宝江
ZHANG Yi;ZHANG Rutong;WU Baojiang(College of Electrical Engineering,North China University of Science and Technology,Hebei Tangshan 063210,China)
出处
《机械设计与制造》
北大核心
2025年第12期99-102,共4页
Machinery Design & Manufacture
基金
国家自然科学基金(61803154)。
关键词
永磁同步电机
最小损耗控制
新型趋近律
变电压控制
Permanent Magnet Synchronous Motor
Minimum Loss Control
New Reaching Law
Variable Voltage Control
