Title :
An OCC-APF control strategy for unbalanced grid conditions
Author :
Lock, Alberto S. ; da Silva, Edison R. C. ; Fernandes, Darlan A. ; Elbuluk, M.
Author_Institution :
Dept. of Renewable Energy Eng., Fed. Univ. of Paraiba, Joao Pessoa, Brazil
Abstract :
In this work it is proposed a DSP based, OCC control strategy for APF, which is able to work in case of unbalanced grid voltage, i.e. when it is affected by a common mode voltage. Proposed strategy is based on an OCC rectifier control which utilizes an input resistance control to set up dc-link voltage and achieve a unity power factor as well, and a lead-lag compensator to average phase current. In this sense, APF proposed strategy uses input resistance control while lead-lag compensator is used to filter harmonics in grid current. Simulation and experimental results confirm present proposal.
Keywords :
control engineering computing; digital signal processing chips; power engineering computing; power factor; power grids; power harmonic filters; rectifiers; DSP based strategy; OCC rectifier control; OCC-APF control strategy; common mode voltage; dc-link voltage; harmonics filtering; input resistance control utilization; lead-lag compensator; shunt active power filter; unbalanced grid conditions; unbalanced grid voltage; unity power factor; Active filters; Harmonic analysis; Mathematical model; Power harmonic filters; Reactive power; Rectifiers; Resistance; APF; OCC; common mode voltage; unbalanced grid voltage;
Conference_Titel :
Applied Power Electronics Conference and Exposition (APEC), 2015 IEEE
Conference_Location :
Charlotte, NC
DOI :
10.1109/APEC.2015.7104573
