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   A Novel BeatlessControl for AC Electric Cars.   [View] 
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 Author(s)   S. Inarida; T. Tanamachi; K. Nakata 
 Abstract   In power converter systems for AC electric cars, the DC link voltage contains a ripple component because of the single-phase voltage source. Therefore, a beat phenomenon of the motor current occurs, which causes torque ripple and a howling noise of the motor. A solution to this problem is use of an additional series resonant filter at the DC link. However, addition of another component is an obstacle to making the power converter system smaller and lighter. This paper proposes a novel beatless control, based on the frequency modulation and vector control, which can effectively suppress the beat phenomenon without using an additional resonant filter at DC link. Effectiveness of the control is demonstrated with simulation and experimental results. 
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Filename:EPE2001 - PP00143 - Inarida.pdf
Filesize:418.5 KB
 Type   Members Only 
 Date   Last modified 2004-03-11 by System