Study on Electromagnetic Force in the End Portion of Large Capacity Cylindrical Synchronous Machines

—Improvement of Reactance Estimation and Verification of Electromagnetic Force—

Abstract

Reactance calculation based on FEM from changing frequency point of view described here is effective on considering various kinds of transient phenomena. Moreover, electromagnetic force on the end-winding is described here to evaluate its support system, especially for large capacity cylindrical synchronous machines, where end-winding portion is the longest and electro-magnetic forces on it is the greatest of all rotating machinery.