Comparative Study on the Model Reference Adaptive Speed Estimation Methods

Abstract

In this paper, the problems that exist in the system of speed estimation based on flux model are pointed out on the basis of the analysis of mathematical model of model reference adaptive speed estimation system. Two improving methods are adopted to solve the accuracy of speed estimation. By simulation experiment, the comparative study has been carried on about speed estimation performance, low speed performance and robustness for parameter based on back emf model reference adaptive speed estimation system and reactive power model reference adaptive speed estimation system, respectively. The advantages and disadvantages are pointed out about the two kinds of model reference adaptive speed estimation methods.