Switch energy storage drive mechanical structure

What is the energy storage system?

The energy storage system includes 1×5 MW×2 h LiB, 1×2 MW×2 h VRFB. And the wind power of 99 MW had been put into operation in August 2012. The system is connected with the 35 kV bus. Through intelligent control, the system stores and releases power according to the coordinating with wind power.

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.

What are the important elements of a flywheel energy storage system?

The important elements of such a system are the drive of the flywheel energy storage and the power conversion device. To achieve this purpose the use of synchronous motors with constant magnets on the rotor can be possible. These motors allows good specific performance but are difficult to manufacture, furthermore they are expensive.

What is SMEs energy storage system?

SMES is a kind of fast and efficient energy storage device which can make the energy stored in superconducting coil as electromagnetic energy . Begun in the US and Germany decades ago, SMES now begin to participate in trial operation of power system, and also has some commercial products .

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.

What is the energy storage system subsidy policy?

The plan focuses on PV cells and fuel cells. March 2011: after the earthquake, the government allocated 1.51 billion yen for energy storage technology including fuel cells, energy trading system and battery to improve energy consumption rate. April 2012: family energy storage system subsidy policy was proposed.