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This paper details the design, implementation, and testing of an inertial energy storage system (Flywheel Energy Storage System - FESS) that stores mechanical energy in a flywheel and releases it in a controlled manner to electrical loads. The prototype allows charging the flywheel with a permanent magnet synchronous motor (PMSM), converting mechanical energy into electrical energy, stabilizing direct current (DC) voltage, and generating a sinusoidal alternating current (AC) voltage with a selectable amplitude. Additionally, this paper covers the process of selecting the flywheel and motor, sizing the conversion and filtering stages, designing the AC voltage regulator, and presents experimental results obtained under laboratory conditions.

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Storage and Utilization of the Flywheel’s Kinetic Energy for Powering a Load via an AC Voltage Regulator

  • 会议论文

  • 发表日期：

    2026年

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  • Robert-Ioan Rudac,
  • Dan Marius Dobrea,
  • Cristian Aghion,
  • Ovidiu Ursaru

摘要

This paper details the design, implementation, and testing of an inertial energy storage system (Flywheel Energy Storage System - FESS) that stores mechanical energy in a flywheel and releases it in a controlled manner to electrical loads. The prototype allows charging the flywheel with a permanent magnet synchronous motor (PMSM), converting mechanical energy into electrical energy, stabilizing direct current (DC) voltage, and generating a sinusoidal alternating current (AC) voltage with a selectable amplitude. Additionally, this paper covers the process of selecting the flywheel and motor, sizing the conversion and filtering stages, designing the AC voltage regulator, and presents experimental results obtained under laboratory conditions.