Efficiency and separation of losses of an induction motor and its adjustable-speed drive at different loading/speed combinations

Alexander Domijan, Akram Abu-aisheh, Dariusz Czarkowski

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Adjustable-speed drives (ASDs) create an opportunity for better use of electric energy. When an ASD is used to control motor speed, motor performance (efficiency and losses) is affected by the switching method employed to control the ASD inverter. Performance measurements were done for a five-hp, three-phase squirrel cage induction motor-ASD set at different loading/speed combinations, and the laboratory testing results were analyzed. Separation of the motor losses was performed and analyzed. This can help determine the effects of harmonically distorted voltage and current waveforms on these losses. This type of analysis can also help derate motors in a way that takes into consideration the total harmonic distortion (THD) of the motor current waveforms. The test results and analysis gave the performance characteristics of the motor, drive, and motor-drive system at different loading/speed points. The separation of motor losses shows that stator, rotor, and core loss increase when an ASD is used to drive the motor. On the other hand, stray load loss decreases. For the tested motor, core loss decreases linearly with the decrease in the ASD's output voltage frequency.

Original languageEnglish (US)
Title of host publicationASHRAE Transactions
PublisherASHRAE
Pages228-234
Number of pages7
Volume103
Edition1
StatePublished - 1997
EventProceedings of the 1997 ASHRAE Winter Meeting - Philadelphia, PA, USA
Duration: Jan 26 1997Jan 29 1997

Other

OtherProceedings of the 1997 ASHRAE Winter Meeting
CityPhiladelphia, PA, USA
Period1/26/971/29/97

Fingerprint

Induction motors
Electric load loss
Squirrel cage motors
Harmonic distortion
Electric potential
Stators
Rotors
Testing

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes

Cite this

Domijan, A., Abu-aisheh, A., & Czarkowski, D. (1997). Efficiency and separation of losses of an induction motor and its adjustable-speed drive at different loading/speed combinations. In ASHRAE Transactions (1 ed., Vol. 103, pp. 228-234). ASHRAE.

Efficiency and separation of losses of an induction motor and its adjustable-speed drive at different loading/speed combinations. / Domijan, Alexander; Abu-aisheh, Akram; Czarkowski, Dariusz.

ASHRAE Transactions. Vol. 103 1. ed. ASHRAE, 1997. p. 228-234.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Domijan, A, Abu-aisheh, A & Czarkowski, D 1997, Efficiency and separation of losses of an induction motor and its adjustable-speed drive at different loading/speed combinations. in ASHRAE Transactions. 1 edn, vol. 103, ASHRAE, pp. 228-234, Proceedings of the 1997 ASHRAE Winter Meeting, Philadelphia, PA, USA, 1/26/97.
Domijan, Alexander ; Abu-aisheh, Akram ; Czarkowski, Dariusz. / Efficiency and separation of losses of an induction motor and its adjustable-speed drive at different loading/speed combinations. ASHRAE Transactions. Vol. 103 1. ed. ASHRAE, 1997. pp. 228-234
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