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Starting-up Analysis for LSPM using wye-delta Connection
Saha Subrato(사하 수브라토),Min-Sub Lee(이민섭),Choon-Seok Jang(장춘석),Yun-Hyun Cho(조윤현) 대한전기학회 2014 대한전기학회 학술대회 논문집 Vol.2014 No.4
As a basic theoretical research for motor design, in this paper, the influence of wye-delta connection on Line start permanent magnet machine focused on. Line Start Permanent Magnet Machine (LSPM) is a well-known motor due to its technical advantages in academic and industrial sector. The LSPM combines a permanent magnet rotor that allows higher motor performance during synchronous operation, and an induction motor squirrel cage rotor for starting the motor by connecting it directly to an A.C. Source. Such a construction generates important technical advantages like reduced manufacturing costs and better performances. Therefore, starting -up connection method is very vital application for the three-phase motor. Furthermore, this paper also discusses the best transforming point from wye to delta connection on the basis of comparison of start current wave at various slip of motor. And the method is verified by the simulation on a LSPM.