摘要
针对轨道交通车辆牵引电传动系统,研究适应全速度范围的多模式调制方法以及与之相应的混合控制方法。首先,分析轨道车辆牵引电传动系统的特点,提出与之对应的多模式调制方法。其次,在分析多模式调制方法特点以及改进矢量控制方法存在问题的基础上,提出由矢量控制和转差频率控制构成的混合控制方法。最后,通过仿真和实验验证了多模式调制方法以及混合控制方法的有效性。混合控制方法避免了单脉冲调制模式下的磁场定向和弱磁控制,简化了控制算法,提高了单脉冲调制时系统控制的可靠性。矢量控制和转差频率控制之间的切换方法是混合控制方法实现的关键,本文对该切换方法进行了详细讨论。实验结果表明,该方法能够保证两种控制方法之间的平滑切换。
A multi-mode modulation strategy and its relevant mixed control strategy are investigated in this paper for the whole speed range operation of rail transit electric traction drive systems. Firstly, the features of electric traction drive system are analyzed, and then the multi-mode modulation strategy is presented. Secondly, the characteristics of the multi-mode modulation strategy and the existing problems of the improved vector control method are discussed. After that, the mixed control strategy is presented by both vector control and slip frequency control. Finally, the simulation and experimental results have verified the modulation and control strategies. With the proposed mixed control strategy, the field orientating and the field weakening can be avoided in single-pulse modulation.Therefore, the control algorithm and the reliability of the drive system with single-pulse modulation can be improved. The switch-over method between vector control and slip frequency control is the key point of the mixed control strategy. The experimental results show that the switch-over method can realize smooth switching between these two methods.
作者
王治国
郑泽东
李永东
李贵彬
Wang Zhiguo;Zheng Zedong;Li Yongdong;Li Guibin(State Key Laboratory of Power System Tsinghua University Beijing 100084 China;Department of Control Engineering Academy of the Armored Force Engineering Beijing 100072 China;School of Electrical Engineering Xinjiang University Urumqi 830047 China)
出处
《电工技术学报》
EI
CSCD
北大核心
2016年第24期223-232,共10页
Transactions of China Electrotechnical Society
关键词
轨道交通车辆
牵引电传动系统
多模式调制策略
混合控制策略
矢量控制和转差频率控制之间的切换方法
Rail transit vehicles
electric traction drive system
multi-mode modulation strategy
mixed control strategy
switch-over method between vector control and slip frequency control
