A Winding and Energizing Method for Stator of Pole-Change Induction Motor

• Main Authors: Huang, Kai-Ting, 黃凱廷
• Other Authors: Liu, Tzong-Shi
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/21264750554449513923

碩士 === 國立交通大學 === 機械工程學系 === 100 === According to the electrical engineering theory, the speed of induction motors is associated with 3 parameters: pole numbers, supply frequency and slip rate. Changing speed by operating number of induction motor poles is called a pole-changing control. Changing speed by adjusting supply frequency of induction motor is called a frequency-changing control. Due to zero slip loss both methods are highly effective. On the other hand, because the difference of slips between speed changing before and after will lead to energy loss, changing speed by adjusting slip rate belongs to a low efficient method. The study proposes an effective method which can change pole numbers between 6 and 18, 6 and 12, 2N and 6N. Most windings are shared in use to save space and cost. This study simulates magnetic circuits of stators of designed pole-change induction motors by using an ANSYS Maxwell software, and investigating stator and rotor properties. Furthermore, this study generalizes the designing processes of pole-change induction motors.