NDLI: Observer-based open transistor fault diagnosis and fault-tolerant control of five-phase permanent magnet motor drive for application in electric vehicles

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Observer-based open transistor fault diagnosis and fault-tolerant control of five-phase permanent magnet motor drive for application in electric vehicles

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Observer-based open transistor fault diagnosis and fault-tolerant control of five-phase permanent magnet motor drive for application in electric vehicles

Content Provider	IET Digital Library
Author	Salehifar, Mehdi Arashloo, Ramin Salehi Eguilaz, Manuel Moreno Sala, Vicent Romeral, Luis
Abstract	To meet increasing demand for higher reliability in power electronics converters applicable in electric vehicles, fault detection (FD) is an important part of the control algorithm. In this study, a model-based open transistor fault diagnsosis method is presented for a voltage-source inverter (VSI) supplying a five-phase permanent magnet motor drive. To realise this goal, a model-based observer is designed to estimate model parameters. After that, the estimated parameters are used to design a sliding mode observer in order to estimate the phase current in an ideal model. Subsequently, the proposed FD technique measures the similarity between the estimated current and real current using cross-correlation factor. This factor is used for the first time in this study to define a FD index in VSI. The presented FD scheme is simple and fast; also, it is able to detect multiple open switch or open phase faults in contrast to conventional methods. On the other side, in order to track reference current of the motor, the estimated parameters are used to design a proportional resonant controller. The FD technique is used to operate a multiphase fault-tolerant brushless direct current (BLDC) motor drive. Experimental results on a five-phase BLDC motor with in-wheel outer rotor applicable in electrical vehicles are conducted to validate the theory.
Starting Page	76
Ending Page	87
Page Count	12
ISSN	17554535
Volume Number	8
e-ISSN	17554543
Issue Number	Issue 1, Jan (2015)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/8/1
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2013.0949
Journal	IET Power Electronics
Publisher Date	2014-11-19
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	BLDC Motor Drive Brushless DC Motor Control Algorithm Control of Electric Power System Cross-correlation Factor D.C. Machines DC Motor Drive Drive Electric Vehicle Fault Detection Fault Diagnosis Fault Tolerant Control FD Index Five-phase Permanent Magnet Motor Drive Flve-phase BLDC Motor In-wheel Outer Rotor Invertors Machine Control Model-based Observer Model-based Open Transistor Fault Diagnsosis Method Multiphase Fault-tolerant Brushless Direct Current Multivariable Control System Observer-based Open Transistor Fault Diagnosis Observers Open Phase Fault Parameter Estimation Permanent Magnet Motors Power Electronics Converter Reliability Sliding Mode Observer Variable Structure System Voltage-source Inverter VSI
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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