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Paulo R. M. Costa
Electrical Engineering Course, Sobral’s Campus, Federal University of Ceará, CE
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Marcus R. de Castro
Electrical Engineering Course, Sobral’s Campus, Federal University of Ceará, CE
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Isaac R. Machado
Electrical Engineering Course, Sobral’s Campus, Federal University of Ceará, CE
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Tárcio A. d. S. Barros
Faculdade de Engenharia Mecânica, Universidade Estadual de Campinas, SP
Keywords:
three-phase induction machines (TIM), Digital Signal Processor (DSP), position control, speed control, Proportional-Integral, hysteresis current controller
Abstract
Due to the three-phase induction machines (TIM) operation principle, the position control of this kind of motor is not trivial. Advances in power electronics, microprocessors technological improvements, and new control strategies have favored TIM control applications, increasingly more precise results. Position control allows the application of TIM in robotic manipulators, for example, replacing the more expensive DC machine. Thus, a Three-phase induction machine position control by indirect field-oriented strategy based on a back-to-back topology converter and Digital Signal Processor (DSP) is presented in this paper. An incremental encoder was used to obtain the angular position of the machine’s rotor. Proportional-Integral controllers were used in the position and speed control loops. Due to the high sampling frequency achieved (200 kHz), a hysteresis current controller was used. The experimental results obtained validated the adopted strategies.
