Publisher : The Korean Institute of Electrical Engineers
DOI : 10.5370/JEET.2013.8.5.1056
Title & Authors
Sensorless Control Method in IPMSM Position Sensor Fault for HEV Kim, Sung-Joo; Lee, Yong-Kyun; Lee, Ju-Suk; Lee, Kwang-Woon; Kwon, Taesuk; Mok, Hyungsoo;
The widely used motors in HEV(Hybrid Electric Vehicles) are IPMSM(Interior Permanent Magnet Synchronous Motor) which has no rotor heat, higher efficiency and advantageous in volume and weight comparing with other motors. For vector control of IPMSM, position information of rotor is required but Resolver is mainly used as the detecting sensor. However, the use of position sensors will reduce the system reliability of hybrid electric vehicles. In this paper, a way to control the motor by sensorless was proposed at the event of sensor failure. We also implemented IPMSM sensorless operation by the expanded EMF(Electro Motive Force) voltage way and harmonic voltage which is applying in the low speed area. And we proposed how to change with sensorless control by detecting the position sensors failure and verified it through experiments.
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