Novel Energy Conservation Scheme for Three Phase Induction Motor Drives Employed in Constant Speed Applications

Due to low price, less maintenance, robustness and reliability, induction motors are used in most of the industrial applications. Nowadays, energy conservation is an important factor for the industries. This paper describes a smart Maximum Efficiency Slip Speed (MESS) energy conservation scheme for three phase squirrel cage induction motor drives, employed in constant speed varying load torque type applications. This paper discusses the advantage of proposed scheme under various set speeds, compared to existing scheme. A complete induction motor drive set up employing MESS scheme is developed and simulated for 5.4 HP, 4 Pole, 400V, 1430Rpm and 50Hz three phase squirrel cage induction motor In Matlab Simulink. The practical verifications is also done in 1 HP, 1400Rpm, 50Hz and 4 Pole three phase squirrel cage induction motor. The results for both simulation and hardware are discussed in this paper.

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W artykule przedstawiono metodę sterowania trójfazową klatkową maszyną asynchroniczną w napędach o stałej prędkości i zmiennym obciążeniu, polegającą na regulacji poślizgu dla uzyskania maksymalnej sprawności energetycznej. Przedstawione w badań symulacyjnych i eksperymentalnych potwierdziły skuteczność proponowanej metody.