Energy storage switch is force

What is a magnetically suspended flywheel energy storage system (MS-fess)?

The magnetically suspended flywheel energy storage system (MS-FESS) is an energy storage equipment that accomplishes the bidirectional transfer between electric energy and kinetic energy, and it is widely used as the power conversion unit in the uninterrupted power supply (UPS) system.

Does a state switch affect the power converter?

Finally, the simulations and experiments are performed to validate the performances of the switch strategy used in the FESS-UPS system, and the results prove that the current/voltage peaks during the switching process are effectively mitigated, so the impact on the power converter caused by the state switch is suppressed.

What is a normal switch strategy?

For the normal switch strategy, the oscillation value of the DC-bus voltage reaches 136 V from the holding stage to the discharging stage. For the proposed switch strategy using the compensation model, the variation of the DC-bus voltage is reduced to 102 V during the switching process.

What is a flywheel energy storage system (fess)?

The flywheel energy storage system (FESS), as an important energy conversion device, could accomplish the bidirectional conversion between the kinetic energy of the flywheel (FW) rotor and the electrical energy of the grid 1, 2, 3.

Can MS-fess be used as energy storage device in UPS system?

The experimental results of the speed regulation. The MS-FESS could be used as the energy storage device in the UPS system to realize the charging and discharging, such that the high-efficiency conversion between the kinetic energy and the electric energy could be accomplished.

Can magnetically suspended fess be used for energy storage?

In addition, the tunable magnetic forces could actively suppress the vibration amplitudes of the stator part and FW rotor suffering the disturbance at a high rotational speed 18, 19. Thus, the magnetically suspended FESS (MS-FESS) is promising for energy storage, considering the extremely low vibration and the active controllability.