Analysis and Application of Lyapunov-Based Stable Control of the Single-Phase Shunt Active Power Filter

2012 ◽  
Author(s):  
Lanfang Li ◽  
Honggeng Yang ◽  
Weiming Guo ◽  
Yamei Liu
Keyword(s):  
Single Phase ◽  
Active Power Filter ◽  
Active Power ◽  
Shunt Active Power Filter ◽  
Power Filter ◽  
Stable Control

Nonlinear Lyapunov-Based Stable Control Method of the Single-Phase Shunt Active Power Filter

2011 ◽  
Vol 354-355 ◽  
pp. 1390-1393 ◽  
Author(s):  
Lan Fang Li ◽  
Hong Geng Yang ◽  
Wei Ming Guo ◽  
Ya Mei Liu ◽  
Fang Wei Xu ◽  
...  
Keyword(s):  
Lyapunov Function ◽  
Single Phase ◽  
Control Method ◽  
Active Power Filter ◽  
Active Power ◽  
Shunt Active Power Filter ◽  
Correct Operation ◽  
Power Filter ◽  
Control Output ◽  
Stable Control

This paper proposes a nonlinear Lyapunov-based control method of the single-phase shunt active power filter (APF). The system is modeled firstly and then the compensated current of the APF is calculated. The energetic like Lyapunov function is constructed and the control output is determined through ensuring the differential of the Lyapunov function negative, which grantee the convergence of the APF system. Considering that the time-varying load may cause greater fluctuations in DC voltage, an average value is used to calculate the control output. A globally stable control is possible and it is insensitive to the parameter uncertainties and robustness to the disturbances. Simulation results are obtained using Matlab/ Simulink. These results verify the correct operation of the proposed control method.

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