Abstract
The results from development and simulation of a switched reluctance motor for a trolleybus traction drive are discussed. The project is based on the motor modular designing principles, and the 180 kW TAD-3 induction motor with which trolleybuses are currently equipped serves as a prototype. The switched reluctance motor’s parameters were obtained from a numerical analysis of the magnetic field using the ELCUT computer program and have been embedded into the MATLAB/Simulink model of the motor developed for the 12/8 stator poles to rotor teeth ratio. The modeling makes it possible to improve the design procedure, rationally select the control parameters, and obtain the dynamics of changes in the motor main parameters in various modes of its operation. The dependences of the phase current r.m.s. value and the mean torque on the control parameters, as well as the change in the trolleybus motor rotational speed in the constant power mode are investigated. The proposed switched reluctance motor design version supports all modes of operation according to the trolleybus standard motion diagram in the case of its being equipped with the TAD-3 induction traction motor. In using a reluctance adjustable drive in urban transport vehicles, savings up to 30% of active materials are achieved; only readily available and inexpensive materials are used, and the motor design is well amenable to mass scale production with low labor intensity (the magnetic system has a simple configuration; the motor does not have a commutator, squirrel cage, and permanent magnets, and its coils are machine-wound).
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