This chapter describes the induction motor and its principle of operation. In a practical generator, an electromagnet would be used as the rotor instead of the permanent magnet shown and this would be energized by direct current from an outside source by way of slip-rings. Such rings could ...
An electric motor converts electrical energy into a mechanical energy which is then supplied to different types of loads. A.c. motors operate on an
induction motor Summary This chapter contains sections titled: Principle of Operation of the Three-phase Motor Essential Characteristics Construction of Induction Motors Derating Factors Matching the Motor Rating to the Driven Machine Rating Effect of the Supply Voltage on Ratings Effect of the System ...
The three-phase AC induction motor is a rotating electric machine that is designed to operate on a three-phase supply. This 3 phase motor is also called as an asynchronous motor. These AC motors are of two types:squirrel and slip-ring type induction motors. The principle of operation of th...
The working principle of a three-phase induction motor ensures that the rotor speed never matches the stator’s synchronous speed. If they were equal, no relative motion would exist, preventing emf induction, current flow, and thus, no torque would be produced. ...
If unbalanced operation is acceptable, the thyristors in one or two supply lines to the motor may be bypassed. This offers the possibility of dynamic braking or plugging, desirable in some applications. 33.3.3.2 Slip Power Control Variable-speed, three-phase, wound-rotor (or slip-ring) inducti...
The principle of operation for an ACIM is based on the voltage induction from the stator to the rotor. When the stator winding is fed by a three-phase supply voltage, the current flows in the winding and the stator rotating magnetic field is generated. Induced voltage in the rotor win...
For steady-state operation, the slip has a normal range of values between 1% and 5%. Development of Equivalent Circuit in a Three-Phase Induction Motor An equivalent circuit is invaluable in the performance analysis of the three-phase induction motor. Therefore, the equivalent circuit, as well ...
isalsoknownasasynchronousmotor. Ademonstrationofitsoperatingprincipleishighlightedinthefigure.Asitcanbe seen,aconductorbeingpartoftherotorismovingwithspeedomega1throughthe electroicfieldmovingwithspeedomega3withthedirectionsindicatedby thespeedarrow.Theresultingconductorspeedrelativetotheicfieldspeed ...
The operation principle of bearingless induction motor was introduced, and then the mathematical equation of the radial force model for the bearingless ind... X Sun,H Zhu,Z Tao - IEEE 被引量: 3发表: 2009年 PI type decoupling control scheme for high speed operation of induction motors In the...