Study of Three-Level APF Control Methods Based on Kalman Filter

被引:0
|
作者
Li, Ping [1 ]
Wang, Jiuhe [1 ]
机构
[1] Beijing Informat Sci & Technol Univ, Sch Automat, Beijing 100192, Peoples R China
来源
INTERNATIONAL CONFERENCE ON ELECTRICAL AND CONTROL ENGINEERING (ICECE 2015) | 2015年
关键词
three-level active power filter (three-level APF); Kalman filter; harmonic detection; current tracking control;
D O I
暂无
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
The accuracy of harmonic current detection and the current tracking control is key performance of active power filter (APF). Signal sampling, digital operation and transmission are typical processes in extracting harmonic current signal. The accuracy will be lost during these processes due to the signal transferring lag or interference. De-noising, fast tracking the current, extracting fundamental active current component are realized by utilizing the recursive algorithm of Kalman filter. The compensation current can be predicted to compensate the influence of signal delay and achieve real-time tracking compensation. A shunt active power filter (SAPF) based on the main circuit topology of three-level inverter is adopted and a proposed simple current tracking control method is used to eliminate the harmonic distortion. The filtering system and the algorithm are verified in MATLAB/Simulink. The simulation results show that the recursive algorithm based on Kalman filter can accurately track the power load current, effectively extract the reference current for compensation, and the inverter can provide good tracking control performance. It is proved that the proposed methods are feasible and effective.
引用
收藏
页码:47 / 54
页数:8
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