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First Experimental Results of Highly Efficient PMSM for HEV
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| Author(s) |
Lorenz TAUS-BETI, Uwe SCHAEFER |
| Abstract |
This report constitutes the third release of a project concerning the minimization of losses of a Permanent Magnet Synchronous Machine (PMSM) for an Hybrid Electric Vehicle (HEV) and introduces the first experimental results carried out on a prototype. The focus of the research is centred on the reduction of idle loss at high speed and low load via an asymmetrical rotor design with an inductance ratio Ld/Lq>1. Such a characteristic feature decreases the amount of current required in the flux weakening operation and makes the engine particularly suitable for loss-minimization control strategies. An appropriate test bench as well as the necessary components to control and feed the PMSM have been set up in order to test the prototype on-load operation. The characteristic diagram of the quadrature inductance Lq and the direct inductance Ld are presented and validate the design criteria for Ld/Lq>1. The current trajectories of Maximum Torque per Ampere (MTPA), Maximum Torque per Volt (MTPV) and Maximum Torque per Watt (MTPW) have been determined experimentally at several speeds. |
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| Filename: | 0277-epe2011-full-14202847.pdf |
| Filesize: | 1.159 MB |
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| Type |
Members Only |
| Date |
Last modified 2012-01-26 by System |
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