高压大功率开关磁阻电机功率变换器设计  

Design of Power Converter of High-voltage and High-power for Switched Reluctance Motor

作　　者：贾好来[1] 姜晋文[1] 王振民[2] 

机构地区：[1]江苏大学电气信息工程学院,镇江212013 [2]太原理工大学电气与动力工程学院,太原030024

出　　处：《高电压技术》2009年第7期1718-1723,共6页High Voltage Engineering

摘　　要：为减少大功率电机工作时的线路损耗,减小导线线径,中高压供电系统被广泛使用,开发中高压开关磁阻电机调速系统非常迫切,因此设计了交流输入1140V、三相12/8极、额定功率280kW开关磁阻电机的功率变换器。12只耐压为2000V的整流二极管构成了整流电路,25只4700μF/450V大容量滤波电容先并联再串联构成滤波电路,和滤波电容并联的均压电阻可确保5组串联电容上的电压均衡。开关磁阻电机功率电路采用不对称半桥电路,主开关器件选用3300V高压IGBT模块,驱动采用Concept公司生产的高压IGBT驱动模块2SD315AI-33。通过设置不同的栅极开通电阻RGon和栅极关断电阻RGoff,可分别控制开通损耗和关断损耗,以及di/dt、du/dt;通过监测集电极电压实现IGBT的短路保护;最后,给出了空载情况时两种不同导通角下的实测绕组电流波形。自系统投入运行两年多来,性能稳定可靠,没有出过大的故障。It designs the power converter of high-voltage and high-power for SRM. The rectifier are structured from 12 diodes theirs reverse repeatability maxim voltage reaches 2000 V. The filter are structured from 25 capacitors, their capability reaches 4700 μF/450 V. The power converter proto type is asymmetry half-bridge its main switches are HV IGBT module. Dual SCALE Driver 2SD315AI-33 is applied as the drive circuit of HV IGBT. In order to control turn-on energy loss per pulse, turn-off energy loss per pulse, di/dt and du/dt, gate turn-on-resistor and gate turn-off-resistor are set separately. The IGBT＇s short-circuit protection is implemented by detecting Collector-Emitter Voltage. The winding current waves without load is presented.

关 键 词：高压SRM 短路保护 高压IGBT 高压IGBT驱动 PWM 变换器 

分 类 号：TM46[电气工程—电器] TM352