| Summary: | 碩士 === 國立勤益科技大學 === 電機工程系 === 102 === A sinusoidal pulse width modulation based permanent magnet synchronous motor (PMSM) drive with six-step square wave starting is presented in this thesis. The six-step square wave skill is used to start PMSM by utilizing Hall magnet pole position sensors to detect rotor magnet position. When motor speed is attaining steadily state, the rotor magnet position can be acquired by software. Then, the sinusoidal pulse width modulation technique is applied to improve the performance of PMSM drive. In the proposed system, the proportion integral type speed controller is designed applying loot-locus skill.
The control algorithms are realized by a 16 bit micro-controller dspic-
30f4011 of Micro-Chip Company and, to generate trigger signals to the power stage, drive PMSM to experimentally validate the proposed approach.
The proposed PMSM drive is suitable for low-power variable speed household appliances, such as fan, ventilator, pump, etc.
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