Influence of Switching Frequency and Squirrel Cage Design on Audible Noise and Losses in Variable Speed Induction Motor Drives with Transistor and IGBT Inverters

Autor:	G. Meynants, Roland Reekmans, S Van Haute, Ronnie Belmans, A Malfait
Rok vydání:	1997
Předmět:	Engineering Rotor (electric) business.industry Stator Squirrel-cage rotor Electrical engineering Insulated-gate bipolar transistor Wound rotor motor law.invention law Derating Inverter Electrical and Electronic Engineering business Induction motor
Zdroj:	EPE Journal. 7:1-7
ISSN:	2376-9319 0939-8368
DOI:	10.1080/09398368.1997.11463410
Popis:	A large number of experiments are performed to analyse the influence of the inverter type and the switching frequency on the audible noise, losses and overall efficiency in induction motor drives. Temperature measurements both in stator and rotor give an indication of the required derating, if any. Results for a standard design motor, consecutively supplied by a transistor based inverter and IGBT inverter are compared with the behaviour when the machine is directly connected to the mains. To analyse the influence of the rotor design, a special rotor with no current redistribution is constructed and mountedin a rewound stator. Higher switching frequencies have a large influence on audible noiseand temperature, but the overall efficiency remains nearly constant. However the distribution of losses is influenced.
Databáze:	OpenAIRE
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