摘要
储能系统,直流供电系统,单相交流整流系统(如铁路牵引系统)等的直流母线纹波电压对系统的稳定运行存在直接威胁。基于此,本文提出了一种直流纹波抑制器及其直接电压优化控制策略,所提控制策略能够根据实际纹波电压值来抑制纹波电压,确保母线电压的稳定。相比其他抑制装置与控制策略,本文所提拓扑简单且利于实现,所提控制策略降低了传统控制策略的计算复杂度,同时无需额外装设系统电流传感器,现场的适应性更强。仿真与实验结果验证了本文理论分析的正确性与所提控制策略的有效性。
The DC bus ripple voltage of such system as energy storage,DC supply and single phase AC rectifying(such as railway traction system)etc has a direct threat to the stable operation of the system.On this basis,a kind of DC ripple suppressor and its direct voltage optimization control strategy are proposed and the proposed control strategy can be able to suppress ripple voltage as per the actual ripple voltage so to assure stability of the bus voltage.With comparison with other suppression device and control strategy,the topology proposed in this paper is simple and easy to achieve.Moreover,the proposed control strategy,compared to the traditional control strategy,reduces the calculation complexity and,at the same time,the system current transducer is not additionally installed and the site adaptability is much stronger.Both the correctness of theory analysis and effectiveness of the proposed control strategy are verified by the simulation and experimental result.
作者
牛金平
NIU Jinping(China Railway First Survey and Design Institute Group Co.,Ltd.,Xi’an 710043,China)
出处
《电力电容器与无功补偿》
北大核心
2019年第2期154-159,共6页
Power Capacitor & Reactive Power Compensation
关键词
直流纹波抑制器
直接电压控制
优化控制
DC ripple suppressor
direct voltage control
optimization control
