Open AccessCompensation of three‐phase diode rectifier with capacitive filter working under unbalanced supply conditions using series hybrid active power filter
Author(s) -
Mulla Mahmadasraf Abdulhamid,
Rajagopalan Chudamani,
Chowdhury Anandita
Publication year - 2014
Publication title -
iet power electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.637
H-Index - 77
eISSN - 1755-4543
pISSN - 1755-4535
DOI - 10.1049/iet-pel.2013.0605
Subject(s) - rectifier (neural networks) , electronic filter , capacitive sensing , compensation (psychology) , active filter , capacitive power supply , electronic filter topology , electronic engineering , filter (signal processing) , materials science , power factor , control theory (sociology) , prototype filter , computer science , engineering , electrical engineering , low pass filter , constant power circuit , voltage , psychology , stochastic neural network , control (management) , machine learning , artificial intelligence , recurrent neural network , artificial neural network , psychoanalysis
The currents drawn by three‐phase diode rectifiers with capacitive filters under unbalanced supply conditions are highly non‐linear and unbalanced. This configuration draws significantly unbalanced currents even with smaller percentage of unbalance in supply voltages and more unbalance in supply voltages leads to an extreme unbalanced situation like single phasing. This study highlights the unbalance line current problem observed in three‐phase diode rectifier and proposes its compensation using series hybrid active power filter (SHAPF) working with appropriate control strategy. Four distinct modes of operation under unbalanced supply are identified. A new control algorithm which simultaneously compensates for supply voltage unbalance and source current harmonics is applied to compensate the configuration. An experimental model of three‐phase diode rectifier with capacitive filter working under different supply situation is developed to establish identified modes of operation. This configuration is compensated with SHAPF, manufactured using ARM Cortex M4‐based microcontroller and the results of compensation are described in this study.