One Arc PMSM for Telescope Tracking System

摘要

This paper explores one Arc PMSM for Direct Drive Telescope tracking system. By the Arc PMSM, we can very easilymanufacture one direct drive system for large telescope. Direct drive system has many advantages over moretraditionally used friction and rack/pinion drive. The advantages include high stiffness, no friction, easy alignment andlow maintenance. The paper discusses the design process of the Arc PMSM, especially the methods to reduce the torqueripple.