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Due to these disadvantages of pre-existing speed sensorless induction motor driver systems, a novel sensorless induction motor driver system using a novel motor sensor winding. The proposed sensor winding is installed in a slot of the induction motor for measuring the induction voltage of air-gap magnetic field. By digital processing system, the value of the rotor current in motor T-type equivalent...
Compared with the conventional vehicles, electric vehicles (EV) has many advantages, such as absence of emissions, high efficiency, and independence from petroleum. In this paper, a Brushless DC motor (BLDCM) is used in the EV and active disturbance rejection controller (ADRC) has been applied to the speed control of the system. It can highly enhance the dynamic and steady state performances of the...
One time radial vibration, mostly caused by rotary eccentric load, may reduce the reliability and operating life of motors. In order to mitigate the one time radial vibration in permanent magnet motors, a real time detection method for rotary eccentric load based on the theoretical analysis of the motor vibration and the mechanical analysis was given, and a novel control strategy based on FOC (field...
This paper presents a new rotor flux estimation algorithm using neural network for induction motor, based on the left-inversion method. Using the standard fifth-order model of the three-phase induction motor in a stationary two axes reference frame, the flux ldquoassumed inherent sensorrdquo is constructed and its left-invertible is validated. The artificial neural network (ANN) left-inversion flux...
Rotary eccentric loads often lead to vibration problems in motors, which may reduced their reliability and operating life. In order to reduce the radial vibration in permanent magnet motors, a real time detection method for rotary eccentric load based on the theoretical analysis of the motor vibration and the mechanical analysis was given, and a novel control strategy based on FOC (field oriented...
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