摘要
针对永磁同步电机控制系统转矩脉动大、系统效率低、控制难度大等问题,提出一种扩展电压矢量的方法。通过调整逆变器的开关切换状态,获得精确的电压矢量,并选择期望电压矢量对电机进行调节。在Simulink仿真实验平台上验证了扩展电压矢量模型预测控制的可行性和有效性,并与PI控制进行对比。结果表明:该模型预测控制方法可以扩展电压矢量,降低转矩脉动和电流波纹,提高电流环的响应速度。
In view of the problems of large torque ripple,low efficiency and difficult control of permanent magnet synchronous motor control system,a method of expanding a voltage vector is proposed.By adjusting the switching state of the inverter,the precise voltage vector is obtained,and the desired voltage vector is selected to adjust the motor.The feasibility and effectiveness of the extended voltage vector model predictive control are verified on the Simulink simulation platform,and compared with the PI control.The results show that the model predictive control method can expand the voltage vector,reduce torque ripple and current ripple,and improve the response speed of current loop.
作者
李文娟
乜春颖
张琦
张元
LI Wenjuan;NIE Chunying;ZHANG Qi;ZHANG Yuan(College of Electrical and Electronic Engineering,Harbin University of Science and Technology,Harbin 150080,China)
出处
《实验技术与管理》
CAS
北大核心
2020年第2期117-120,131,共5页
Experimental Technology and Management
基金
黑龙江省高等教育教学改革研究资助项目(SJGZ20190022).
关键词
模型预测控制
电压矢量
永磁同步电机
model predictive control
voltage vector
permanent magnet synchronous motor
