630 kW开关磁阻电机驱动系统的研发与应用

研发了单机功率630 kW的开关磁阻电机(SRM)驱动系统,使用双机同步驱动技术在中国国内8000 t电动螺旋压力机上成功应用。设计并优化了电机电磁参数,对电机结构件和连接件的机械强度进行了应力计算;控制器采用CAN隔离模块,实现多台电机的转矩实时同步性;采用复合铜排等工艺措施,减小主回路杂散电感及回流面积,抑制IGBT尖峰电压;采用光纤驱动方式,避免强磁场干扰,保证信号传输质量和系统可靠性。测试结果表明,该SRM驱动系统各项性能指标均满足8000 t电动螺旋压力机的使用要求。

Development and Application of 630 kW SwitchedReluctance Motor Drive System

A switched reluctance motor (SRM) drive system with a single power of 630 kW is developed. The dual-machine synchronous drive technology is successfully applied to the 8 000 t electric screw press in China. The electromagnetic parameters of the motor are designed and optimized, and the mechanical strength of the motor structure and connecting parts is calculated. The controller adopts the CAN isolation module to realize the real-time synchronization of the torque of multiple motors. Using composite copper bars and other technological measures to reduce the stray inductance and loop area of the main circuit, and suppress the IGBT peak voltage. The optical fiber drive mode is adopted to avoid strong magnetic field interference and ensure the signal transmission quality and system reliability. The test results show that all performance indicators of the SRM drive system meet the requirements of the 8 000 t electric screw press.