In the drives of high-speed devices, such as a blood centrifuge, dynamic states also play an important role in terms time and quality tests performed. The article presents application modified equations resulting from mathematical model induction motor to phenomena during start-up, both with mains supply frequency start-up. applied solution considers phenomenon current displacement rotor bar sa...

Nowadays the control of stator voltage at a constant frequency is one of the traditional and low expense methods in order to control the speed of induction motors near its nominal speed. The torque of induction motor is a nonlinear function of the firing angle, phase angle and speed. In this paper the speed control of induction motor regarding various load torque and under different conditions ...