Shunt Active Power Filter Modeling, Control, and Analysis for improving power quality

The goal of this paper is to develop and build a Shunt Active Power Filter (SAPF) to improve the power quality of modern power systems. Manypower electronics-based loads and controllers are used in today’s power system. These power electronics-based loads and controllers inject non-linearity and harmonics into the system, in addition to numerous other benefits. The voltage and current waveforms get distorted as a result, and power quality suffers. Passive filters are commonly employed to address concerns linked to power quality issues. However, this approach can only provide fixed compensation and has a large size. Active power filters (APFs) are a good alternative for improving the power quality of modern power systems, since they may be utilised as current and voltage sources for balancing voltage harmonics, current harmonics, and providing reactive power support.The goal of this paper is to develop a voltage source based SAPF to address the issue of power quality. The control signals isgenerated using an instantaneous power theory control method. The oscillating components of real and reactive powers isused to gener¬ate the reference current in the instantaneous power theory. Furthermore, VSI provide real power to compensate for switching losses. The current controller’s reference currentis obtained using a hysteresis current controller. Because the hysteresis current controller has a good dynamic response, it can track and compensate for continuously varying current harmonics.The MATLAB/ Simulink platform to be used to implement the proposed system model and control method. In this study, two scenarios are compared: one with SAPF and one without SAPF.