Search

Abstract: Differential-geometry methods enable the design of a Lie compensator that exactly linearizes the total system including the nonlinearities of an induction motor. The aim of this work is to prove under which circumstances the five equations of the induction motor are exactly linearizable and to figure out the linearization unit details as a basis for a linear controller. The use of computer-algebraic procedures facilitates the evaluation of the complex calculations. Simulations and the comparison with measurements of practical plants show that the linearization is successful and that the over-all system including induction motor, linearization circuit and controller obeys optimal tracking performance.