Open AccessAn open‐switch fault detection scheme in the IGBT‐based PWM power converter used in DFIG connected to DC‐bus
Author(s) -
Touaiti Bilel,
Ben azza Hechmi,
Jemli Mohamed
Publication year - 2019
Publication title -
international transactions on electrical energy systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.428
H-Index - 42
ISSN - 2050-7038
DOI - 10.1002/2050-7038.12112
Subject(s) - insulated gate bipolar transistor , pulse width modulation , engineering , stator , electronic engineering , pwm rectifier , fault (geology) , control theory (sociology) , electromagnetic coil , electrical engineering , computer science , voltage , control (management) , artificial intelligence , seismology , geology
Summary This paper addresses the diagnosis of open‐switch fault in pulse‐width modulation (PWM) power converter based on insulated‐gate bipolar transistor (IGBT) used in doubly‐fed induction generator‐direct current (DFIG‐DC) system. The fault diagnosis is carried out by analyzing the rotor currents within healthy and faulty operation conditions. In the new proposed configuration of DFIG connected to DC‐bus, the diode rectifier is employed to connect the stator windings to the DC‐bus and the PWM power converter is employed to connect the rotor windings to the DC‐bus. The main goal of using a PWM power converter is to keep the stator voltage and frequency constant at rated values. In this regard, the various experimental results for open‐circuit faults are obtained by using dSpace DS1104 control board. Some experimental results are obtained, proving the effectiveness of the proposed diagnosis approach such as low detection time and high robustness against false alarms.