This review presents a detailed summary of the latest technologies used in flywheel energy
storage systems (FESS). This paper covers the types of technologies and systems employed …

Energy storage systems (ESSs) play a very important role in recent years. Flywheel is one of
the oldest storage energy devices and it has several benefits. Flywheel Energy Storage …

This article reviews bearingless motor technology for medium and high power applications.
Historically, bearingless motors have resided in research settings and certain niche …

Finding efficient and satisfactory energy storage systems (ESSs) is one of the main concerns
in the industry. Flywheel energy storage system (FESS) is one of the most satisfactory …

This paper develops a magnetic equivalent circuit model suitable to the design and
optimization of the synchronous ac homopolar machine. The ac homopolar machine is of …

The ever increasing penetration of renewable and distributed electricity generation in power
systems involves to manage their increased complexity, as well as to face an increased …

Homopolar inductor machine (HIM) has been applied in the field of flywheel energy storage
system (FESS) due to its merits of simple structure, high reliability, and low idling losses …

Increasing levels of renewable energy generation are creating a need for highly flexible
power grid resources. Recently, FERC issued order number 841 in an effort to create new …

In this paper, an 8-pole/12-slot high-speed superconducting bearingless machine is
proposed for flywheel energy storage systems. The proposed machine adopts a homopolar …

A winding design approach is proposed for the bearingless ac homopolar and consequent
pole motors that utilizes the same coils for both suspension force and torque production …