Title :
Assessment of power losses of an inverter-driven induction machine with its experimental validation
Author :
Hemandez-Aramburo, C.A. ; Green, T.C. ; Smith, A.C.
Author_Institution :
Dept. of Electr. Eng., Imperial Coll. of Sci., Technol. & Med., London, UK
Abstract :
Detailed power loss distribution in induction machines is assessed using time-stepped finite element analysis coupled to circuit equations of an inverter. Losses are examined for various load conditions. Iron losses are largely unexplored and so particular attention is paid to them here. The simulation has revealed the division between ohmic, hysteresis, classic eddy current and anomalous losses; and the distribution in the frequency spectrum between fundamental, slotting, and multiples of the switching frequency. Insight is gained into the spatial location of the loss. Experimental validation is provided for several fundamental frequencies from full-load to light-load conditions.
Keywords :
eddy current losses; finite element analysis; induction motor drives; invertors; machine theory; 2.1 kW; 4-pole induction motor; anomalous losses; classic eddy current losses; full-load conditions; hysteresis losses; inverter circuit equations; inverter-driven induction machine; iron losses; light-load conditions; ohmic losses; power losses assessment; switching frequency; time-stepped finite element analysis; Circuit analysis; Circuit simulation; Coupling circuits; Eddy currents; Equations; Finite element methods; Hysteresis; Induction machines; Inverters; Iron;
Conference_Titel :
Industry Applications Conference, 2002. 37th IAS Annual Meeting. Conference Record of the
Conference_Location :
Pittsburgh, PA, USA
Print_ISBN :
0-7803-7420-7
DOI :
10.1109/IAS.2002.1042701
