Lanfang Li
Electric Power Research Institute of Guangdong Power Grid Corporation, Guangzhou, 510080, Guangdong, China
Weiming Guo
Guangzhou Bureau, EHV Power Transmission Company of China Southern Power Grid, Guangzhou, 510405, Guangdong, China
Ming Ma
Electric Power Research Institute of Guangdong Power Grid Corporation, Guangzhou, 510080, Guangdong, China
Baiyu Xu
Electric Power Research Institute of Guangdong Power Grid Corporation, Guangzhou, 510080, Guangdong, China
ABSTRACT
When the load and system parameters are changing, the APF usually appears unstable and its exact mathematical model is quite difficult to determine. This study is to introduce Takagi Sugeno (TS) type fuzzy controller and Lyapunov-based stability theory into the Direct Current (DC) side voltage control and current control of the three-phase Active Power Filter (APF), aiming to guarantee the precision and stability of APF. Firstly, the TS fuzzy control is applied to voltage error and error rate at DC side to attain the source current amplitude of reference value; then the Lyapunov method is adopted to design the switching function of APF and the global stability of control system is ensured by insuring the derivative of energy-like Lyapunov function always negative. The parameters of TS fuzzy controller are optimized by using Adaptive Neuro-Fuzzy Inference System (ANFIS) in Matlab/Simulink. As the results of comparative tests show, the proposed method can guarantee the precision and stability of APF under the conditions of varying load and system parameters.
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How to cite this article
Lanfang Li, Weiming Guo, Ming Ma and Baiyu Xu, 2013. Fuzzy Control and Lyapunov-based Stability Control of the Three-phase Shunt
Active Power Filter. Information Technology Journal, 12: 3267-3272.
DOI: 10.3923/itj.2013.3267.3272
URL: https://scialert.net/abstract/?doi=itj.2013.3267.3272
DOI: 10.3923/itj.2013.3267.3272
URL: https://scialert.net/abstract/?doi=itj.2013.3267.3272
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