This paper represents the simulation of Shunt Active Power Filter(SAPF) based on p-q theory and using hysteresis current control to obtain the gating signals for three phase ac-dc converter. The proposed active power filter is employed to reduce the current Total Harmonic Distortion (THD) drawn by the non-linear load and compensate the reactive power. The PI controller is employed to reduce the...

Abstract In this paper, a three-phase shunt active power filter (SAPF) controller with fully digital implementation is presented. The main goal of contribution to implement direct control (DDPC) algorithm without phase-locked-loop (PLL) for SAPF. This intended quality improvement and current harmonic elimination. introduced in paper cost-effective, has fast-dynamic response, simple hardware imp...

Current technological developments generally use sophisticated equipment which is categorized as a non-linear load. The massive of loads causes side effects on the quality electric power. Electric power systems that are connected to will experience distortion in current and voltage by harmonics due engineering waveforms installation many converters operating at frequencies do not match utility ...

Due to large amount of non-linear power electronic equipment’s impact and fluctuating loads , problems of power quality have become more and more serious with each passing day. Active power filtering has gained much more importance in the power quality arena as it gives the best solution for all power quality issues. Shunt active filtering is effective and the performance of such units largely ...

In recent decades, the utilization of highly automatic electric equipments has resulted in enormous economic loss. Thus, the power suppliers as well as the power consumers are very much concerned about the power quality issues and compensation approaches. In order to deal with this issue, Active Power Filter (APF) has been considered as an attractive solution due to its significant harmonic com...

<span>This paper presents a novel shunt active power filter (SAPF). The converter that is used in this SAPF constructed from four-leg asymmetric multi-level cascaded H-bridge (CHB) inverter fed photovoltaic source. A three-dimensional space vector modulation (3D-SVPWM) technique adopted work. can generate 27-level output with harmonic content almost zero. In addition to the capability inj...

This paper deals with an indirect current controlled shunt active power filter (SAPF) for improving power quality by reactive power compensation and harmonic filtering. The presence of harmonics and reactive power in the power source because it will cause additional power losses and malfunctions. The proposed APF is based on a voltage source inverter (VSI). The VSI is controlled by two loops, t...

The problem of controlling three-phase shunt active power filters (SAPF) is addressed in presence of nonlinear loads supplied with three-phase power grids. The SAPF-load system is shown to be modeled, in the ( , ) coordinate frame, by a third-order nonlinear state-space representation. The control objective is twofold: (i) compensating for the current harmonics and the reactive power absorbed b...

This paper presents a self-tuning filter (STF)-based adaptive linear neuron (ADALINE) reference current generation algorithm to enhance the operation of a three-phase three-level neutral-point diode clamped (NPC) inverter-based shunt active power filter (SAPF) under non-ideal (unbalanced and/or distorted) source voltage conditions. SAPF is an effective and versatile mitigation tool for current ...