基于DSP的内燃机车辅助变流器控制  

Control Method of Diesel Locomotive Auxiliary Converter Based on DSP

作　　者：高路路[1] 罗国永[1] 曾明高[1] 

机构地区：[1]株洲南车时代电气股份有限公司,湖南株洲412001

出　　处：《大功率变流技术》2014年第4期6-9,39,共5页HIGH POWER CONVERTER TECHNOLOGY

摘　　要：介绍了内燃机车辅助变流器硬件平台的原理框架以及基于MODBUS_RTU标准的RS485数据通信和变频控制。针对通信链路干扰和突投电机对供电系统产生冲击等问题给出了优化设计方案,消除了通信链路干扰;应用变频变压供电方案;减小恒频恒压供电时突投电机对供电系统的冲击。实验证明该内燃机车辅助变流器的输出特性良好。It introduces the principle frame of diesel locomotive ACU hardware platform, and describes RS485 data communications Standards based on MODBUS_RTU and a variable-frequency control. Aiming to the problems such as the communication link interference and the impact of instantaneous start motor on power supply system, an optimal design was performed to eliminate such interference, and a variable-frequency variable-voltage scheme was applied to reduce the impact of constant-frequency constant-voltage on the system. The test results prove that the diesel locomotive auxiliary converter with the proposed scheme has good output characteristics.

关 键 词：MODBUS_RTU SVPWM 变频控制 

分 类 号：TM464[电气工程—电器]