Improve power quality
Since SMES can emit or absorb certain power, which can be used to reduce the impact of load fluctuations or generator output changes on the power grid, SMES can serve as the uninterruptible power supply for sensitive loads and important equipment, and at the same time solve the problem of abnormal distribution network to the user's palace caused by abnormalities in the distribution network or interference of the main network, so as to improve the power supply quality. Provide system backup capacity. The system standby capacity exists
Its size is not only an economic issue, but also a technical issue related to power grid security, which is important to ensure the safety margin of power grid. It is important to restore power supply quickly after an accident. At the current level, SMES high-efficiency energy storage battery characteristics can be used to store emergency backup power, but not enough to serve as the backup capacity of large-scale power grids.
For renewable energy generation and microgrids
SMES 'efficient energy storage batteries and fast power regulation capabilities can smooth output power fluctuations in renewable energy generation systems such as wind energy and solar energy, effectively suppress power quality problems such as voltage fluctuations and flickers caused by such power sources, and improve the controllability and stability of grid-connected operation. Microgrid is an emerging technology that effectively utilizes decentralized new energy to improve the power supply reliability of power systems. SMES can improve the grid-connected characteristics of microgrid and improve the isolated island operation performance of microgrid.