Open AccessInverter fault diagnosis of an electrical series‐connected two sinusoidal six‐phase permanent magnet machines drive
Author(s) -
Santos Moraes Tiago José,
Trabelsi Mohamed,
Nguyen Ngac Ky,
Semail Eric,
Meinguet Fabien
Publication year - 2020
Publication title -
iet electric power applications
Language(s) - English
Resource type - Journals
ISSN - 1751-8679
DOI - 10.1049/iet-epa.2019.0777
Subject(s) - inverter , fault (geology) , control reconfiguration , control theory (sociology) , process (computing) , fault tolerance , magnet , series (stratigraphy) , voltage , series and parallel circuits , computer science , stuck at fault , engineering , fault detection and isolation , control (management) , electrical engineering , reliability engineering , embedded system , artificial intelligence , actuator , paleontology , seismology , geology , biology , operating system
This study investigates a real‐time fault diagnostic of a transportation system which needs two drives with fault‐tolerance capabilities. Owing to the constraints on the mass of the system and on the cost of the voltage source inverter, a drive with two six‐phase permanent magnet synchronous machines in series‐connection supplied by two six‐leg inverters is chosen. Despite the serial connection, independent control of the two machines and fault‐tolerance to open‐switch fault is ensured. Nevertheless, a fault detection identification (FDI) process is required for analysis and/or control reconfiguration. The proposed FDI is based on the combination of different criteria obtained from the two zero‐sequence currents and from the normalised currents mapped into two frames defined by the concordia transformation. Results obtained from simulation and experimental tests show the effectiveness of the proposal.