UTHM Institutional Repository

Single-phase active power filter for battery charger harmonic compensations

Mahadan, M. E. and Utomo, Wahyu Mulyo (2012) Single-phase active power filter for battery charger harmonic compensations. In: 5th International Conference on Postgraduate Education (ICPE-5 2012), Universiti Teknologi Malaysia, Skudai, 18-19 December 2012.

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Abstract

This paper presents the employment of a single-phase active power filter to compensate harmonics generated by battery charger. The presence of the harmonics leads to various problems and poor power quality. The objectives of this project are to control and regulate the DC bus voltage of the single-phase active power filter and to obtain the switching signal for active power filter to generate appropriate current compensations. The operation of active power filter is verified using thesimulations in MatlabISimulink. PI controller is used in order to regulate the DC bus voltage and hysteresis current controller is employed to generate signal for switching purpose. The process is based on sensing line currents, filter currents and DC side capacitor voltage. The error signal caused by the filter has been computed firstly. Then this error signal has been compensated using the PI controller. The reference filter currents signal then obtained by subtracts the line current with the compensated signal from the controller. This reference current is feed to the hysteresis current controller and compare with the sensed filter currents to obtain the switching signal for active power filter. Simulation results are obtained with the active power filter and without the active power filter in the system. The system line currents with active power filter has a total harmonic distortion of 1.43% while the system line currents without active power filter has a total harmonic distortion of 36.36%. Thus, based on the simulation results this paper verified the ability of active power filter to compensate harmonics generated by the battery charger.

Item Type: Conference or Workshop Item (Paper)
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800-8360 Electronics
Divisions: Faculty of Electrical and Electronic Engineering > Department of Electrical Power Engineering
Depositing User: Normajihan Abd. Rahman
Date Deposited: 23 Apr 2015 00:46
Last Modified: 23 Apr 2015 00:46
URI: http://eprints.uthm.edu.my/id/eprint/5862
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