Electric Generators for Direct Coupled High Speed Turbo Generators in Distributed Power Systems

摘要

This article addresses various technical challenges in developing high speed, lightweight electric generators for applications in direct coupled high speed generators for distributed power systems. These challenges involve the technologies of electromagnetics, thermodynamics, rotor dynamics, and engineering assembly practices. How those challenges are being addressed and the results of activities to date relating to generators from several hundred kilowatts to a few megawatts will be discussed. Current status and the test data relating to these generators will be presented.rnWhile the requirements of power and voltage levels as well as the duty cycle vary, the applicable generator technology is mainly impacted by the power level. The electric generator is typically driven by a high speed turbine. The operating speeds of the turbine and the mechanical and thermal interfaces with the generator have a substantial impact on the design details of the generator.