Dynamic analysis of series-connected wound rotor induction motor

Abstract EN

Series-connected induction motor has the ability of operation either at two speeds ; the first one is less than the synchronous speed depending on the load, while the second speed is exactly double the synchronous speed.

The motor has the capability of self-starting to reach the first speed.

In addition to special arrangements required to attain the second (higher) speed, instability problems have been noted in experimental operation.

This paper presents a dynamic analysis of motor when supplied from a variable voltage variable frequency power supply.

The starting behavior has been presented.

Experimental results are given to check model validity in dynamic conditions.

Then the instability problem associated with high-speed operation has been studied to investigate its reasons and suggest solutions, either in operation or in the design.