This paper describes an Intelligent Bio-inspired optimization technique to minimize the square of errors in the parameters of an induction motor. The torque ripples and speed error would degrade the performance of the machine. In order to enhance the performance parameters of cage rotor type induction motor, the speed error and torque ripples should be minimized. This can be achieved by tuning ...

This article discusses magnetic vibrations in squirrel-cage induction motor stators and provides a mathematical description of the process their excitation. A model 30 kW was developed finite element software. considers geometry, material properties stator winding. The electromagnetic mechanical processes during rotation rotor were considered. In course this study, currents various harmonic com...

-This paper presents a nonlinear generalised predictive control scheme for a squirrel cage motor without speed sensor. Some of the difficulties faced are due to uncertainties in the parameters measurements, high cost to obtain state measurements in addition to the inherently non-linear behaviour. The control scheme presented is composed of a positioning predictive control and an open loop obser...

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 ...

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 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 ...

The squirrel cage induction motor direct torque control main problems due to and large stator flux pulsation. In this an improved model predictive algorithm considering multi-step delay compensation is proposed. At each sampling moment, predict the linkage at next moment under voltage vector. optimal vector deviation from reference value are selected as minimum objective function. Aiming proble...

Squirrel-cage induction motors play an important role in the world’s industry. Hence there is a strong demand on their reliable and safe operation. Their faults and failures can lead to excessive downtimes and generate enormous costs due to reduced output, emergency maintenance and lost revenues. In this paper a FEM model of a three phase squirrel-cage induction machine is presented. It is used...

Multiple coupled circuit modeling of squirrel-cage induction motors, or winding function approach is the most detailed and complete analytical model used to analyze the performance of the faulty induction motors. This paper extends the above-mentioned model to a saturable model including variable degrees of the saturation effects using an appropriate air gap function and novel techniques for lo...

With the widespread use of electric machines, there is a growing need to extract information from the machines to improve their control systems and maintenance management. The present work shows the development of an embedded system to perform the monitoring of the rotor physical variables of a squirrel cage induction motor. The system is comprised of: a circuit to acquire desirable rotor varia...