可控漏磁反凸极永磁电机的最优电流控制
Optimal current control of controllable leakage flux anti salient permanent magnet motors
胡文亮 1刘细平 1胡志刚 1黄志国 1史梓豪1
作者信息
- 1. 江西理工大学电气工程与自动化学院 赣州 341000
- 折叠
摘要
针对可控漏磁反凸极永磁同步电机在传统电流控制策略中存在电枢电流大、效率低及控制精度低等缺点,提出了一种考虑电机在运行过程中参数变化的最优电流控制策略.首先,分析新型电机的反凸极和可控漏磁特性,考虑电机电感与磁通的变化引入反凸极比和漏磁率系数,构建新型电机结构模型;其次,对传统的最大转矩电流比控制进行重建,得到最优电流组合,进一步提高电机的控制精度,降低电机的铜耗;最后通过对电机的仿真和实验.结果表明,相比于传统的控制策略,所提方法铜耗降低了约5%,电枢电流降低了0.6 A,提高了电机的效率.
Abstract
In view of the disadvantages of large armature current,low efficiency and low control accuracy in traditional current control strategies of controllable leakage flux reverse salient pole permanent magnet synchronous motor,an optimal current control strategy considering the parameter changes during the operation of the motor was proposed.Firstly,the characteristics of inverse salient pole and controllable magnetic flux leakage of the new motor are analyzed,and the inverse salient pole ratio and magnetic flux leakage coefficient are introduced considering the changes of inductance and flux of the motor,and the structure model of the new motor is constructed.Secondly,the traditional maximum torque current ratio control is reconstructed to obtain the optimal current combination,which further improves the control accuracy of the motor and reduces the copper consumption of the motor.Finally,through the simulation and experiment of the motor,the results show that compared with the traditional control strategy,the proposed method reduces the copper consumption by about 5%and the armature current by 0.6 A,which improves the efficiency of the motor.
关键词
可控漏磁/反凸极/参数可变/最优电流控制Key words
controllable leakage flux/reverse salient/parameter variable/optimal ccurrent control引用本文复制引用
出版年
2024
NETL
NSTL
维普
万方数据