NDLI: Modelling and control of a hybrid power filter to compensate harmonic distortion under unbalanced operation

Content Provider	IET Digital Library
Author	Fernandez, Andres A. Valdez Escobar, Gerardo Rodriguez, Panfilo R. Martinez Sosa, Jose M. Delgado, Daniel Ulises Campos Sanchez, Manuel J. Lopez
Abstract	This study presents a model-based controller for a hybrid power filter (HPF) to reduce the current harmonic distortion in a three-phase system for a general operation case considering unbalanced and distorted source voltages and load currents. The HPF comprises an active power filter (APF) grid connected by means of an LC passive filter. This topology is aimed to reduce the current rating handled by the APF, representing a cost effective solution. The controller design is split into two stages, a first one to control the fundamental component of the system dynamics, and to regulate the DC voltage; and a second stage to compensate the harmonic distortion caused by a non-linear load. For this, the harmonic compensation scheme forces the injection of the required harmonic current to the point of common coupling. The proposed scheme keeps the very familiar proportional–resonant control structure. The compensation of the load reactive current is left to the passive filter. Experimental and simulation results are presented to exhibit the benefits of the proposed control solution.
Starting Page	782
Ending Page	791
Page Count	10
ISSN	17554535
Volume Number	10
e-ISSN	17554543
Issue Number	Issue 7, Jun (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/10/7
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2016.0263
Journal	IET Power Electronics
Publisher Date	2017-02-06
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	APF Grid Control of Electric Power System Current Harmonic Distortion Reduction Current Rating Reduction Dc Voltage Regulation Distorted Source Voltage General Operation Case Harmonic Compensation Scheme Harmonics Hybrid Power Filter LC Passive Filter Load Reactive Current Model-based Controller Nonlinear Load Other Power Apparatus And Electric Machine Passive Filter Point of Common Coupling Power Harmonic Filter Power Supply Quality Proportional-resonant Control Structure System Dynamics Unbalanced Voltage Voltage Control
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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