Analysis and design of PWM inverter system for flywheel energy storage system

This paper presents energy input and output modeling for a flywheel energy storage system that can store and supply mechanical energy, which is emerging as one of clean energy sources, and the analysis and control of a PWM inverter system. For this, we discuss the characteristics of flywheel storage system and system modeling through PI controllers. The variations of voltage and current according to the velocity characteristic of flywheel energy storage system were simplified into numerical expressions and analyzed, and flywheel energy storage was analyzed through simulation.