Forced energy storage device black technology

The participation of energy storage technology in the black start of new energy can help the black start power supply complete the self-start operation and maintain the stability of the system voltage and frequency. Reference proposed a black start control strategy based on hierarchical control for optical storage microgrids.

The combination of energy storage system and new energy unit to realize black start can effectively supplement the amount of black start power and make it possible for parallel recovery of black start, which can effectively improve the black start response efficiency and reduce power outage time.

Other energy storage methods have the potential to be utilized for black start services (e.g., flow battery and FES have quick re- sponse times, HT-TES has high energy density, LASE has 100% depth of discharge, and CAES has large storage capa- city and high power capacity).

Energy storage technology combined with new energy can form three kinds of black start power supply: wind storage black start power supply and optical storage black start power supply [53, 54]. And black start power supply of micro grid, improving the capability of new energy black start.

The success of the black start operation directly depends on the coordination degree of the new energy power station and energy storage technology and depends on whether sufficient load supply can be guaranteed. Reference proposed a power coordination control strategy for energy-storage wind farms.

For multiple energy storage systems to participate in the black start, it is necessary to keep all energy storage SOC within the prescribed reasonable range. Because the traditional droop control is difficult to ensure the balance of each energy storage SOC.