Journal of Electrical Engineering and Technology

The Korean Institute of Electrical Engineers (대한전기학회)
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Drive System Design for a Permanent Magnet Motor with Independent Excitation Winding for an Electric Bicycle

  • Son, Young-Dae (Dept. of Electronic Engineering, Dongseo University) ;
  • Kang, Gyu-Hong (Electric and Electronic Research Division, Korea Marine Equipment Research Institute (KOMERI))
  • Received : 2010.05.10
  • Accepted : 2010.06.29
  • Published : 2010.11.01
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Abstract

This paper presents the implementation and characteristic analysis of a drive system for a three-phase permanent magnet motor with independent excitation winding that is applicable for electric bicycles. The design features improves the phase current waveform, output power, and torque by using advance angle control. This adjusts the phase angle of each phase current in relation to back EMF. In addition, a DC-side PI current control is performed through PWM generation circuit using a low-cost one-chip microcontroller and a CPLD chip, resulting in reduced system costs. Finally, the validity of this control scheme for driving electric bicycles and output/torque improvement characteristics are verified through analysis and experimental results.

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References

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