Control Strategy of Active Power Filter Based on Modular Multilevel Converter

2017 International Symposium on Application of Materials Science and Energy Materials

材料科学;能源学

Xie, Xifeng^1

Guangxi Vocational College of Water Resources and Electric Power, Nanning, China^1

关键词: Active power Filter;    Active power filters;    Control strategies;    Indirect current control;    Modular multi-level converters;    Predictive current control;    Pressure resistance;    Voltage balance control;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/322/7/072032/pdf
DOI  :  10.1088/1757-899X/322/7/072032

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

To improve the capacity, pressure resistance and the equivalent switching frequency of active power filter (APF), a control strategy of APF based on Modular Multilevel Converter (MMC) is presented. In this Control Strategy, the indirect current control method is used to achieve active current and reactive current decoupling control; Voltage Balance Control Strategy is to stabilize sub-module capacitor voltage, the predictive current control method is used to Track and control of harmonic currents. As a result, the harmonic current is restrained, and power quality is improved. Finally, the simulation model of active power filter controller based on MMC is established in Matlab/Simulink, the simulation proves that the proposed strategy is feasible and correct.