基于有源电力滤波器的改进型电流控制方法  

Improved Current Control Method Based on Active Power Filter

作　　者：杨双双 YANG Shuangshuang(State Grid Tianjin Binhai Power Supply Company,Tianjin 300450,China)

机构地区：[1]国网天津滨海供电公司,天津300450

出　　处：《通信电源技术》2023年第19期1-3,共3页Telecom Power Technology

摘　　要：通过建立包含LCL滤波器的有源电力滤波器数学模型,开展对电路中电流控制方法的研究。针对有源电力滤波器(ActivePowerFilter,APF)网侧、逆变侧电流控制方法存在的缺陷,引用电容电流前置叠加。并在此基础上,开展对系统的根轨迹图形、指令电流跟踪能力、抑制开关频率附近的谐波效果等内容的研究。通过仿真实验证实所提的控制方法能够进一步改善补偿电流的跟踪效果,具有一定的使用价值和参考价值。By establishing the mathematical model of active power filter including LCL filter,the current control method in the circuit is studied.Aiming at the defects of current control methods on the network side and inverter side of Active Power Filter(APF),capacitor current pre-superposition is introduced.On this basis,the root trajectory graph,command current tracking ability and harmonic suppression effect near switching frequency of the system are studied.The simulation results show that the control method proposed in this paper can further improve the tracking effect of compensation current,and has certain use value and reference value.

关 键 词：LCL滤波器 电容电流前馈 补偿精度 

分 类 号：TM761[电气工程—电力系统及自动化]