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This paper proposes an efficiency analysis on an inverter-fed induction motor drive integrating switching losses minimization by D-PWM (Discontinuous PWM) and an ELMT (Electric Loss Minimization Technique) for the motor, either separately or contemporary. This approach allows to benchmark the contribution of both the chosen PWM and ELMT strategies on the total losses. The aim is the development of...
This paper presents the new scheme for high-efficiency operation of PWM inverter-driven hysteresis motor with short-duration overexcitation. When the terminal voltage Vi of the hysteresis motor running at synchronous speed is continuously increased up to nVi (n > 1) and then continuously decreased to Vi, input currents are reduced and output power is increased at the same time. Because of this,...
This paper presents the new scheme for high-efficiency operation of PWM inverter-driven hysteresis motor with short-duration overexcitation. When the terminal voltage Vi of the hysteresis motor running at synchronous speed is continuously increased up to nVi (n>1) and then continuously decreased to Vi, input currents are reduced and output power is increased at the same time. Because of this, the...
Escalating energy prices and increasing environmental concerns have renewed interest in improving motor system efficiency during normal operating conditions and when the motor is fed from a polluted power system. In this study a laboratory study and a mathematical motor model are used to evaluate and compare energy consumption and performance of a 3 phase induction motor fed by a square wave and a...
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