不可控发电运行过程分析与系统优化  

Effectively Dealing with Sudden Losses of Drive Signals by Inverter Switches of IPMSM (Interior Permanent Magnet Synchronous Motor) System

作　　者：刘景林[1] 丁晓峰[1,2] Chris Mi 侯瑞茵[1] 

机构地区：[1]西北工业大学自动化学院,陕西西安710072 [2]密西根大学工程与计算机学院,美国迪尔本48128

出　　处：《西北工业大学学报》2011年第4期620-626,共7页Journal of Northwestern Polytechnical University

摘　　要：内置式永磁同步电动机(IPMSM)弱磁高速运行时,逆变器开关管的信号突然消失会导致电动机系统处在不可控发电运行状态。此时,逆变器的续流二极管组成不可控整流桥,电流由电机通过整流桥整流,然后流向直流侧电池。文章首先建立了系统的数学模型,然后通过对系统运行过程进行仿真分析,求得电池吸收能量值和整个过程反馈能量值。接着,为避免不可控发电对电池、电机、逆变器以及其它系统组成部分的损害和有效地对电池进行充电,对电路提出了改进措施。Aim. The introduction of the full paper reviews Refs. 2 through 7 and then, with the help of Fig. 1, proposes our effective method for dealing with the sudden losses of drive signals by inverter switches of IPMSM system during field-weakening high-speed operation. Sections 1 and 3 explain our effective method. Section 1 is entitled the simplified mathematical model of uncontrolled generation （UCG） ; Section 2 is entitled the simulation results of UCG transient process and their analysis; Section3 is entitled the improvements of UCG system. Fig. 3 gives the simulation model of UCG; Figs. 4 through 7 present the simulation results and give the feedback power obtained throughout the transient process; Figs. 8 through 11 propose the circuit improvements for effectively charging the battery and avoiding as much as possible the destruction risks of battery, motor, inverter and other relevant components during UCG.

关 键 词：内置式永磁同步电动机 整流桥 不可控发电 反馈能量值 

分 类 号：F407.61[经济管理—产业经济]