Abstract
This paper aims at investigating the use of an induction wound rotor motor to generate voltage instead of the old diesel engines that are still used in many factories, like old cement factories, in Jordan. In this investigation, a simulation model of induction wound rotor motor was implemented using Matlab/Simulink. The excitation dc current was connected to a two-phase rotor circuit, and the voltage-current performance characteristics were investigated and evaluated under different load types. The simulation results confirmed the possibility of using the induction wound rotor motor as a synchronous generator.
Highlights
One of the main problems of electrical supply in industry and agriculture is the interruption of the main power supply source and the need to an emergency power supply source
When the speed of the induction motor is less than the synchronous speed and its slip is positive, the induction motor operates as a motor
A wound rotor induction motor can operate as a synchronous generator based on its construction which is similar to a synchronous generator with non-salient poles
Summary
One of the main problems of electrical supply in industry and agriculture is the interruption of the main power supply source and the need to an emergency power supply source. When the speed of the induction motor is less than the synchronous speed and its slip is positive, the induction motor operates as a motor. A new method that allows an induction motor to operate as a generator is suggested. In wound rotor induction motors, the DC excitation current can be supplied to a rotor circuit through slip rings and carbon brushes. This gives the possibility of converting an asynchronous machine into a synchronous generator operation mode which can be used as an emergency power supply, which allows the utilization of power sources more effectively and efficiently
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