In recent years, China’s microgrid has developed rapidly, but the application of large-capacity microgrid is not mature. According to the actual situation of the island intelligent microgrid system structure, this paper introduces the application of 10, 000- kilowatt isolated island microgrid with energy storage and multi-type power supply, and proposes a system-level collaborative control method for multi-type power island isolated microgrid. The difficulty of diesel/storage coordinated frequency control in the isolated state is realized, and the stable operation of the isolated microgrid under the penetration of high proportion of renewable energy is realized. The comprehensive power supply reliability reaches 99.91%, the renewable energy power utilization rate exceeds 30%, and the real-time power penetration rate is up to 60%. It is of great significance to ensure the safe and reliable power supply of the island and promote the large-scale application of new energy, energy storage and microgrid technology.
Electric Power System Equipment