A Compensating Method for Variation of Secondary Resistance with Temperature of Vector Controlled lnduction Motor System Based on Slip Frequency Control

摘要

The characteristics of vector controlled induction motor system based on the slipfrequency control are influenced by the variation of secondary resistance Rr with temperature.Therefore it is desirable that the estimated value Rr of sccondary resistancebeing used as the parameter of vector control is compensated to follow the variation.This paper presents a compensating method of the estimated value Rr of secondaryresistance. The compensating method is based on the special relation which arises ifthere is a difference between Rr and Rr. This paper presents t.he simulat.ion results ofthe compensating method too.