Power generation side energy storage black technology

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.

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.

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.

Feasibility analysis of photovoltaic energy storage system as black-start power supply of power grid under uncertain environmental conditions. China Southern Power Grid Technology, 10(8), 82–88. [Google Scholar] 41.

According to Table 1, it can be seen that at this stage of the blackout, hydroelectric units are mainly used, while in today's vigorous development of new energy sources, photovoltaic power plants and wind power plants are involved in the black start process, which has become the trend of black start development.

Reference put forward a photovoltaic system control strategy suitable for power grid black start and verifies that the changes in energy storage configuration and the environment will affect the voltage, frequency, and recovery time of the system during the black start to a certain extent.