The growing use of nonlinear devices is introducing harmonics in power system networks that result distortion current and voltage signals causing damage to distribution systems. Therefore, systems, the elimination great significance. This paper presents an efficient techno-economical approach suppress improve factor using Shunt Hybrid Active Power Filters (SHAPF) based on neural network algorit...

In this paper, a highly efficient prototype of Gallium Nitride high electron mobility transistor (GaN HEMT) power amplifier using elliptic low pass filter output network is proposed, fabricated and measured. A fifth-order elliptic low-pass filter network is designed and implemented for the output matching, which provides optimized fundamental and harmonic impedances. Simulation and experimental...

Power quality standards (IEEE-519) compel to limit the total harmonic distortion (THD) within acceptable range caused by rapid usage of power electronic equipment. This paper envisages on the simulation of instantaneous active and reactive theory based shunt active filter with MATLAB/Simulink, as a better solution for reduction of the harmonics.

This paper discuses the application of the revised IEEE-519 Harmonics standards to typical industrial facilities employing adjustable speed drives (ASDs). The harmonic generation characteristics of ASDs are described. Requirements for control of the harmonic currents are developed as a function of the ASD characteristics, overall plant loading level, power system characteristics, and power fact...

An advanced single-phase active power filter for the compensation of instantaneous harmonic components in nonlinear load current is presented in this paper. A novel signal processing technique using adaptive neural network algorithm is applied and evaluated for the on-line detection of instantaneous harmonic current components generated by nonlinear loads And the feasibility of this adaptive ne...

Active power filters are used to eliminate current harmonics of non-linear loads. This paper evaluates three different methods of determining the compensating current for a shunt active filter that is working under nonsymmetrical conditions. The paper compares the instantaneous reactive power theory, the synchronous reference frame theory and fast Fourier transform techniques. The comparison is...

In recent years there has been very extensive use of power electronic devices, which result in harmonic proliferation in the power distribution system. In this paper, as per IEEE C 57.110 standards, procedure to calculate total loss in the distribution transformer under non-linear distortion environment is proposed. The power factor capacitor performance under non-linear load conditions is also...

Harmonic resonance is one of an important aspect being considered in a large network such as a wind power plant (WPP). This paper analyses several factors that affect resonance characteristic in a WPP and possible mitigation measures. The first part of the paper provides an analysis of resonances in WPP. Two methods of identifying resonances are performed which are a common impedance scan metho...

Deicing of overhead transmission lines are necessary to prevent damage to the transmission system and outages. In this paper, a modular multilevel DC de-icer (M2D2) is introduced, based on the structure of modular multilevel converter (MMC) with full-bridge submodules. The M2D2 exhibits a lot of salient features: high modularity, scalability, compactness, high efficiency, wide DC voltage range,...