Design, Construction, and Testing of a High Energy, High Power Rotating Energy Storage System

摘要

An inertial energy storage system capable of storing up to 320 MJ of energy was successfully designed, built and tested. The system consisted of a charging motor drive, rotating energy storage generator, static exciter, solid-state controlled rectifier, and control system. The system uses fixed frequency ac power to energize a variable frequency motor drive/controller that spins a synchronous machine rotor to store kinetic energy. Charging time is on the order of 1 minute. The stored energy is then discharged through the synchronous machine stator windings and a solid state rectifier to produce a high power dc pulse at the output. The duration of the output pulses are on the order of seconds. Over 100 charge and discharge cycles were achieved during testing.