控制棒驱动机构用同步磁阻电机低速运转平稳性研究  

Study on the low speed running stability of the reluctance motor for CRDM

作　　者：于天达[1] 杨方亮[1] 陈西南[1] 杨晓晨[1] 唐向东[1] 邓强[1] 

机构地区：[1]中国核动力研究设计院核反应堆系统设计技术重点实验室,四川成都610041

出　　处：《机械设计与制造工程》2016年第12期91-96,共6页Machine Design and Manufacturing Engineering

摘　　要：首先通过分析控制棒驱动机构中同步磁阻电机在低速运行时出现失稳的原因,得到了齿槽转矩脉动、换相换流转矩脉动和低速时电流非正弦引起的转矩脉动对转矩波动的影响规律。然后通过建立的低速运转仿真模型得到了电机在不同转速下的电流和输出转矩,并针对仿真结果,提出了从电机本体结构和控制方式对电机转矩脉动进行优化的方案。仿真结果表明:优化后电机低速运行平稳性得到明显改善,在低速运行时的电流畸变率减小了65%,转矩脉动最高减小了81%。It analyzes the reasons of the synchronous reluctance motor instability at low speed in CRDM,provides the influence of cogging torque ripple,commutation moment torque ripple and non sinusoidal current torque ripple on torque ripple. It describes the current and output torque characteristics of the motor at different speed based on the low speed running simulation model,discusses the simulation results,optimizes the torque ripple of the motor from the structure and control mode of the motor. The simulation results show that the low speed running stability of the optimized motor is improved obviously,the current distortion rate is reduced by 65% and the torque ripple is reduced by 81%.

关 键 词：控制棒驱动机构 同步磁阻电机 转矩脉动 有限元仿真 

分 类 号：TM341[电气工程—电机]