Microprocessor control of a variable reluctance motor

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Abstract
A working closed-loop microprocessor control system is described for a variable reluctance motor. The system incorporates features such as the separate control of both lead angle and conduction angle. The paper addresses the problem of implementation of the control strategy rather than the best choice of control switching angles. Rotor-position measurement and motor-phase-current measurement are used for feedback purposes. Interface circuitry between the microprocessor system and power system is designed to make efficient use of both hardware and software. Some waveforms are presented to illustrate the relative idle time of the microprocessor.

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