Indirect field-oriented control of induction machines based on synergetic control theory

Field-oriented control is one of the most significant control methods for high performance AC electric machines and drives. In particular, for induction machines, indirect field oriented control is a simple and highly reliable scheme which has essentially become an industry standard. This paper synthesizes and develops an indirect field-oriented speed control for induction motors based on synergetic control theory. Compared with the conventional PI control approach, our results show the speed controller based on synergetic control is more stable, robust and insensitive to system parameter variations. Effects of controller parameter variations on the system performance have also been studied.

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