System-level power loss sensitivity to various control variables in vector-controlled induction motor drives

Ali M. Bazzi, Veysel T. Buyukdegirmenci, Philip T. Krein

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

Abstract

Vector-controlled induction motor drives include several design and control variables that affect power losses. Flux may be weakened to reduce machine losses; switching and conduction losses in the inverter are reduced by adjusting the flux ripple and current hysteresis bands. This paper combines the machine and inverter to investigate the effects of various control variables on the total system power loss. Both indirect field-oriented control and direct torque control are employed. Power losses considered include semiconductor switching and conduction losses, and machine core and copper losses. Magnetic saturation is taken into account. A 1.5 hp system is simulated and experimentally tested to find minimum-loss operating points for various control variable combinations. Experimental results show that the operating point for minimum system-level power loss is different from that of minimum machine power loss. These results suggest that for efficient system operation, control aspects should be utilized and integrated into motor drive designs for efficient system operation.

Original languageEnglish (US)
Title of host publicationAPEC 2012 - 27th Annual IEEE Applied Power Electronics Conference and Exposition
Pages1619-1624
Number of pages6
DOIs
StatePublished - Apr 30 2012
Externally publishedYes
Event27th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2012 - Orlando, FL, United States
Duration: Feb 5 2012Feb 9 2012

Publication series

NameConference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC

Other

Other27th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2012
CountryUnited States
CityOrlando, FL
Period2/5/122/9/12

Keywords

  • Motor drive power loss
  • induction machine losses
  • inverter losses
  • power loss sensitivity

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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