Real-Time Implementation Of A Static Compensator (STATCOM) / Active Power Filter For Power Quality Improvement Based On Improved VF-DPC Control Strategy

Abstract

To ensure a good quality of electrical energy at all points of the distribution network, the grid operators install several static compensators of reactive power (STATCOM) and many active power filters at some common coupling points PCC. This paper focuses on the operation of a static converter connected at PCC point performing the function of a static compensator (STATCOM) in the case of a voltage drop exceeding the standards and ensuring the function of an active power filter (APF) in the opposite case. This static converter ensures the regulation of the PCC voltage and eliminates the current harmonics produced by the non-linear loads connected to the grid. The control laws are designed to allow the converter to switch between the operation of a STATCOM and an active power filter. Furthermore, this research article represents an important aspect in scientific research concerning the control of FACT devices. A static reactive power compensator (STATCOM) for reactive power control and an active power filter (APF) performance are investigated by Improved Virtual flux based Direct Power Control (IVF_DPC). The association of a static converter with the (IVF_DPC) control allows to react in a very fast time to the grid perturbations. Simulation results of an improved control scheme (IVF-DPC) for STATOM / APF are affected by MATLAB / Simulink software to demonstrate the dynamic performance of the proposed control strategy. The adopted control scheme is implemented using the dSPACE 1104 board. Real time implementation results prove the efficiency and uniqueness of the adopted strategy