What is flywheel energy storage system (fess)?

Flywheel Energy Storage System (FESS) can be applied from very small micro-satellites to huge power networks. A comprehensive review of FESS for hybrid vehicle, railway, wind power system, hybrid power generation system, power network, marine, space and other applications are presented in this paper.

What are the potential applications of flywheel technology?

Other opportunities are new applications in energy harvest, hybrid energy systems, and flywheel’s secondary functionality apart from energy storage. The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

What are the applications of flywheels in electrical energy storage?

The most common applications of flywheels in electrical energy storage are for uninterruptible power supplies (UPS) and power quality improvement [10, 11, 12]. For these applications, the electrochemical battery is highly mismatched and suffers from an insufficient cycle life, since the number of cycles per day is usually too high .

What are the advantages of flywheel ESS (fess)?

However, being one of the oldest ESS, the flywheel ESS (FESS) has acquired the tendency to raise itself among others being eco-friendly and storing energy up to megajoule (MJ). Along with these, FESS also surpasses the quality of high power density, longer life cycle, higher rate of charge and discharge cycle, and greater efficiency.

How does a fess flywheel work?

Operating the system in such a low pressure requires a vacuum pump and an efficient cooling system to handle the heat generated from MG and some other parts of FESS . When the power into and out of the flywheel is via an electric machine, there are no rotary seals, so leakage can be very small.

Do flywheels require long charge-discharge cycles?

Flywheels have a long life time and very low operational and maintenance requirements. The cycle life is also high, compared to many other energy storage systems, as flywheels do not require long charge-discharge cycles.