Transdesign is the process of converting an idea that has already been used into another one by adding compensation or removing an information in order to modify it to suit a particular purpose. This paper presents the redesign concept as a radical method of revamping a dead electric motor back to usefulness. Data for this paper was got from direct measurement of parameter of a 2.5Hp discarded ...

An optimally designed line-start permanent magnet synchronous machine may require a different squirrel-cage design than traditional induction machines. The objective of this paper is to apply topology optimization based on the normalized Gaussian network in order find optimal shape rotor bars for machine. This approach facilitates optimizing bar, without limitation predefined bar geometry and a...

This paper shows a comparison simulation results for two controllers using the same name plate of 2750 KW, 6.6 KV, 50 HZ for wound and squirrel cage motors using two methods of controlling, the first method is achieved by a conventional method and the second method is achieved by a frequency inverter respectively. Keywords— Squirrel cage and slip ring motors, conventional and VSD controllers si...

Wind turbines are usually installed on remote locations and in order to increase their economic competence malfunctions should be reduced and prevented. Faults of wind turbine generator electromechanical parts are common and very expensive. This paper proposes a fault-tolerant control strategy for variable-speed variable-pitch wind turbines in case of identified and characterised squirrel-cage ...

The paper presents an estimation method for the electromagnetic and mechanical parameters of squirrel cage induction motor. The main result consists in the use of an improved dynamic model that allows also the estimation of the iron loss. The estimated parameters are obtained with accuracy higher than the one from the classical tests. The parameters can be used in the implementation of control ...

In this work induction motor faults detection using electrical signature analysis techniques are introduced, and the advantages and disadvantages of these techniques are explained. Stator phase current signature, stator current locus diagram, stator current vector signature, partial power signature, and total power signature are selected for the simulation study applied for 4Kw squirrel cage in...

This paper presents the performance of the extended Kalman filter (EKF) for speed sensorless indirect field oriented control (IFOC) of a squirrel cage induction motor (IM) supplied by a pulse width modulated (PWM) voltage-source inverter. The rotor speed of the induction motor is estimated, according to this method, using the direct measurements of the stator voltages and currents without the s...

The purpose of the paper is to investigate performance characteristics squirrel-cage induction motor available. This discusses determination parameters for three-phase based on experimental data, which standard test data not completely available in end-users. Alternatively, equivalent circuit should be estimated released motor. also describes MATLAB 2021b/Simulink implementation three phases te...