Abstract: The integration of renewable power sources with power grids presents many challenges, such as synchronization with the grid, power quality problems and so on. The shunt active power filter (SAPF) can be a solution to address the issue while suppressing the grid-end current harmonics and distortions. Nonetheless, available SAPFs work somewhat unpredictably in practice. This is attribut...

The Shunt active power filters are used in power systems for the compensation of harmonic currents generated for non linear loads. A reference current estimation method for control of SAPF using a digital filter based synchronous reference frame theory is presented. To extract the fundamental component of source current, the synchronous reference frame (SRF) theory is suitable because of its ea...

Original scientific paper It is well-known that shunt active power filter (SAPF) is widely used to reduce harmonic distortion and to compensate reactive power in electrical power systems. DC bus voltage control of SAPF is very important for excellent power quality. In the control of SAPF, DC bus voltage is controlled by conventional control methods such as PI and PID controllers. However, these...

This paper introduces a fault-tolerant shunt active power filter (SAPF). The novility in of this work is that it poposes solutions to increase the reliability maintain its operation under single-phase open-circuit fault SAPF. will whole system. SAPF composed 4-leg 27-level inverter based on asymmetric cascaded H-bridge topology. If an introduced SAPF, special control technique be implemented an...

This paper presents a novel method to calculate the reference source current and the referencecompensating current for shunt active power filters (SAPFs). This method first calculates theamplitude and phase of the fundamental load current from a recursive algebraic approach blockbefore calculating the displacement power factor. Next, the amplitude of the reference mains currentis computed with ...

Passive harmonic filters (PHF) are commonly used in conventional potline rectifier transformers (Rectiformer) schemes of aluminum smelters to improve the power quality and reduce distortions an acceptable level. However, changes operating conditions system configuration affect performance capability PHF attenuating harmonics. In this paper, a Rectiformer scheme with hybrid-shunt active filter (...

Penggunaan beban non-linear semakin umum digunakan seiring berkembangnya teknologi yang menerapkan komponen elektronika daya di dalamnya. Beban dapat menimbulkan harmonisa pada jaringan listrik dan mengakibatkan penurunan kualitas daya. Cara untuk mengatasi permasalahan ini salah satunya adalah dengan menggunakan Active Power Filter. Pada penelitian suatu Shunt Filter (SAPF) sistem satu fasa di...

This paper addresses the problem of power quality, and degradation current waveform in distribution network which results directly from proliferation nonlinear loads. We propose to use a five-level neutral point clamped (NPC) inverter topology for implementation shunt active filter (SAPF). The aim SAPF is inject harmonic currents phase opposition at connection point. identification harmonics ba...

1EEE Department, KKR & KSR Institute of Technology and Sciences,Guntur,AP,India 2Department of EEE, University college of Engineering, JNTU Kakinada, AP,India 3Department of EEE, KL University, Vaddeswaram, AP,India --------------------------------------------------------------------**--------------------------------------------------------------------Abstract This paper proposes a novel predic...

This paper presents a comparison of two control strategies for 3-level 4-leg Shunt Active Power Filter (SAPF). The first method is based on hysteresis controllers. The second, proposed method is the Model Predictive Control (MPC) with a finite control-states set (FS) based on phase-to-phase model. The two methods are described and simulation results are presented and analyzed. Comparison is per...