摘要
为了解决高速电气化铁路存在的高次谐波及负序电流等电能质量问题,在降低有源补偿设备成本的前提下,提出将三相四开关型有源电力滤波器(APF)用于高速电气化铁路的电能质量补偿。在对三相四开关型APF的拓扑结构及数学模型进行分析的基础上,将重复控制应用于三相四开关型APF的输出电压控制中,以提高其跟踪精度,改善补偿效果。根据高速铁路负荷的特性,给出改进重复控制器的设计和稳定性分析方法。MATLAB仿真结果验证了改进的重复控制器可以有效提高三相四开关型APF的补偿精度和动态性能。
In order to solve the power quality problems existing in the high-speed electrified railway,such as high-order harmonics,negative-sequence current,etc.,based on the precondition of reduced cost,it is proposed to apply the three-phase four-switch APF（Active Power Filter） in the power quality compensation. The topological structure and mathematical model of three-phase four-switch APF are analyzed and the repetitive control is applied in its output voltage control to improve its tracking accuracy and compensation effect.According to the load characteristics of high-speed electrified railway,the design of improved repetitive controller and its stability analysis method are given. The results of MATLAB simulation show that the improved repetitive controller can effectively improve the compensation accuracy and dynamic performance of three-phase four-switch APF.
出处
《电力自动化设备》
EI
CSCD
北大核心
2016年第2期71-77,共7页
Electric Power Automation Equipment
基金
国家自然科学基金资助项目(51367010)
甘肃省科技计划资助项目(1504WKCA016)
甘肃省硕导项目(2015A-055)~~
关键词
高速铁路
电能质量
三相四开关
滤波器
重复控制
设计
high-speed railway
power quality
three-phase four-switch
electric filters
repetitive control
design
