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Salem Saidi,Rabeh Abbassi,Souad Chebbi 제어·로봇·시스템학회 2016 International Journal of Control, Automation, and Vol.14 No.5
This paper presents a new control strategy which is based on a switching table applied for Virtual FluxDirect Power Control (VF-DPC) of voltage source inverter based shunt active power filter (SAPF). This controlmethod is applied to eliminate harmonic pollution and compensate the reactive power in the presence of nonlinearloads and unbalanced sources. Its main goal is to select switching states of the SAPF converter appropriately basedon a look-up table established by hysteresis controllers acting on the instantaneous error between the commandedand VF-estimated values of active and reactive power. Our method aims to improve the electrical quantity behaviorin steady and dynamic states while reducing the installing cost of the filter through eliminating the AC line voltagesensors. Facing to disturbances affecting the electrical network, a phase locked loop (PLL) has been integrated .Thecontrol strategy proposed for the active filter has been tested in the Matlab/Simulink environment.