Journal ArticleDOI
An improved starting strategy for voltage-source inverter fed three phase induction motor drives under inverter fault conditions
Debaprasad Kastha,A.K. Majumdar +1 more
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TLDR
In this paper, a starting strategy for restarting the drive in variable voltage variable frequency single phase mode in the presence of open base drive and shoot through fault in the inverter is described.Abstract:
Three phase voltage-fed inverter induction motor drives are prone to shoot through and other inverter faults that cause the drive system to shut down. The paper describes a novel strategy for restarting the drive in variable voltage variable frequency single phase mode in the presence of open base drive and shoot through fault in the inverter. The proposed method requires only the motor terminal voltages and currents to be measured. Therefore, it can be applied to even low performance open loop drives with the addition of two motor terminal voltage sensors. The starting algorithm has been verified by computer simulation and experiments on a 1 hp laboratory prototype. Experimental results are in good agreement with simulation predictions. The starting strategy described in this paper is expected to provide an economic alternative to more expensive redundancy techniques which find justification only in a few specialized applications.read more
Citations
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Journal ArticleDOI
Advances in Diagnostic Techniques for Induction Machines
TL;DR: This paper investigates diagnostic techniques for electrical machines with special reference to induction machines and to papers published in the last ten years, and research activities are classified into four main topics.
Proceedings ArticleDOI
Some diagnosis methods for voltage source inverters in variable speed drives with induction machines - a survey
TL;DR: In this paper, the main faults, in general not covered in these systems, are the transistor open circuit fault and the dc bus capacitor fault, and their diagnosis and remedial strategies are listed.
Journal ArticleDOI
Switching Function Model-Based Fast-Diagnostic Method of Open-Switch Faults in Inverters Without Sensors
TL;DR: In this article, a fast diagnostic method for open-switch faults in inverters without sensors is proposed to improve the reliability of power electronic system in order to detect switch and leg open-circuit faults.
Journal ArticleDOI
Fault-Tolerant Operating Strategies Applied to Three-Phase Induction-Motor Drives
TL;DR: A comparative analysis involving several fault-tolerant operating strategies, applied to three-phase induction-motor drives, that intend to compensate for inverter faults is presented.
Proceedings ArticleDOI
Condition monitoring and diagnosis of rotor faults in induction machines: State of art and future perspectives
TL;DR: An overview of typical failure mechanisms and their causes is presented in this article, where recent advances and future perspectives are discussed as well as important and fundamental papers are reviewed and reported in a comprehensive list of references.
References
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Book
Analysis of Electric Machinery
TL;DR: In this paper, the authors focus on the areas of electric power and electric drives and emphasize analysis and formulation for control applications and computer simulation, and present an industry reference for these areas.
Proceedings ArticleDOI
Investigation of fault modes of voltage-fed inverter system for induction motor drive
Debaprasad Kastha,Bimal K. Bose +1 more
TL;DR: In this article, the authors describe a systematic investigation into the various fault modes of a voltage-fed PWM inverter system for induction motor drives, and a preliminary mathematical analysis has been made for the key fault types, namely, input supply single line to ground fault, rectifier diode short circuit, inverter transistor base drive open, and inverters transistor short-circuit conditions.
Journal ArticleDOI
A strategy for improving reliability of field oriented controlled induction motor drives
TL;DR: In this paper, a new, improved induction motor drive topology and control strategy are proposed that allow for continuous, disturbance-free operation of the drive even with complete loss of one leg of the inverter or motor phase.
Journal ArticleDOI
Remedial strategies for brushless DC drive failures
R. Speed,Alan K. Wallace +1 more
TL;DR: In this article, a brushless DC drive with a fan load is investigated for a failure diagnostics and remedial operating strategies that together will enable adaptive fault-tolerant operation, and the correlations between the predictions of a simulation program and test measurements provide confidence that the development of fault tolerant drives can be undertaken with this tool.
Journal ArticleDOI
Fault mode single-phase operation of a variable frequency induction motor drive and improvement of pulsating torque characteristics
Debaprasad Kastha,Bimal K. Bose +1 more
TL;DR: Variable frequency variable voltage operation of a three-phase induction motor in single-phase mode for two common faults of aThree-phase inverter, i.e., open base drive and device short-circuit is considered.
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