摘要
提出了一种建立在异步电机矢量控制策略基础上的母线电压控制策略,以解决架线式交流电机车母线电压发生的较大波动,减少欠压和过压故障保护产生的系统中断运行现象,提高系统的可靠性。对前馈比例环节进行设计、参数计算和理论分析,并进行MATLAB仿真验证。仿真结果表明控制策略能保证原有控制系统高性能的前提下,实现母线电压的平稳控制,减少欠压和过压保护现象的发生。
A DC bus voltage control strategy based on vector control for asynchronous motor was proposed, in order to solve the abnormal fluctuation of DC bus voltage in the overhead line AC locomotive, reducing the phenomena that system operation interruption caused by undervohage and overvoltage fault protection, and improving reliability of the system. The design, parameter calculation and theoretical analysis of feedforward proportional component were introduced. The control strategy was simulated in MATLAB. Simulation results showed that the control strategy was able to achieve smooth control of DC bus voltage, not only realizing the high performance of original system, but also reducing occurrence of undervoltage and overvoltage fault protection.
出处
《电机与控制应用》
北大核心
2013年第9期33-38,共6页
Electric machines & control application
关键词
母线电压控制
矢量控制
异步电机
前馈环节
DC bus voltage control
vector control
asynchronous motor
feedforward component
