摘要
针对传统三相电流型脉宽调制整流器间接电流控制存在受主电路参数L、C变化影响大使得系统精度得不到提高的问题,采用间接电流控制改进策略,在每相调制信号中引入延时角,使得控制得到简化,系统精度得到改善。通过对电动汽车用磷酸铁锂动力电池组进行相关充电实验,验证了该控制策略的可行性和合理性。
To solve the defect of insufficient system accuracy of traditional three-phase current source PWM rectifier due to the evident affects of parameter variation of filter inductance and filter capacitor in main circuit on indirect current control, a improved indirect current control strategy is proposed, in which the delay-angle is introduced into modulation signal of each phase to simplify the control and improve system accuracy. Both feasibility and rationality of the proposed improved control strategy are verified by charging experiments of lithium iron phosphate power batteries for electric vehicle.
出处
《电网技术》
EI
CSCD
北大核心
2012年第6期182-187,共6页
Power System Technology
基金
国家自然科学基金资助项目(51127001)
中央高校基本科研业务费资助项目(CDJXS11151156)~~
关键词
电动汽车
脉宽调制整流器
间接电流控制
功率因数校正
electric vehicle
pulse width modulationrectification
indirect current control
power factor correction
