Simulation, control and fault analysis of 6/4 switched reluctance motor drive using MATLAB
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Date
2018-08
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G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand)
Abstract
The Switched Reluctance Motor is quite popular due to its low cost, simple construction, robustness, high operating speeds and high fault tolerant capabilities. Switched Reluctance machines have gained popularity during the past four decades and a rapid development of SRM led to its wide-spread industrial applications. The modelling, simulation and fault analysis of Switched Reluctance Motor under different operating conditions is necessary to investigate the fault tolerant behaviour of SRM. This thesis presents a comprehensive performance analysis of SRM drive under fault and abnormal operating conditions. This work is an attempt to encompass various aspects of modelling, simulation, analysis and control. The hysteresis current controller is used to limit current within the reference values and the fuzzy logic speed controller is used to provide speed control at reference values with minimum torque ripples. Typical cases considered are: converter device short circuit, converter device open circuit fault and motor terminal short circuit faults. Pre fault conditions are taken under no load and the performance parameters under fault conditions are speed, torque, rise time, flux and current. The response of torque, current, speed and flux are compared under different normal and abnormal/fault conditions to illustrate the fault tolerant characteristics of the SRM drive system under dynamic operating conditions. A 6/4 Switched Reluctance Motor is used in present study and the MATLAB/Simulink environment is used to simulate the model of SRM drive system.
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