Core Insights - Meizhou Island has a subtropical marine monsoon climate with abundant renewable energy sources, including wind, solar, and ocean energy, and has established 23 photovoltaic power generation projects with a total installed capacity of approximately 1,300 kW [1] Group 1: Renewable Energy Integration - The electrification rate on Meizhou Island has reached 95%, with green electricity accounting for 73.58% of the total energy supply [2] - The integration of wind and solar power into the grid presents challenges due to their intermittent and random nature, making it crucial to ensure the stability of the power system [2] - The implementation of a multi-terminal interconnected low-voltage flexible microgrid project has improved the transmission efficiency of renewable energy [2][3] Group 2: Microgrid Technology - The project enhances traditional public transformers by adding flexible interconnection devices, transforming five AC supply transformers into a mixed AC/DC low-voltage flexible DC system [3] - The microgrid can directly connect to the "Rainbow" photovoltaic system at the ferry terminal, allowing for local supply to DC charging stations [3] - The project reduces the first-level AC/DC conversion losses, decreasing overall transmission losses of renewable energy to 56% [3] Group 3: System Resilience and Innovation - The microgrid's regional autonomy and flexible allocation can mitigate the over-reliance on the large grid for renewable energy consumption [3] - The company is accelerating the construction of a new power system on Meizhou Island, including the first island-level optical fiber differential self-healing distribution network in the country [3] - This innovative network meets the needs of distributed power sources, microgrids, and flexible loads, reducing fault recovery time from seconds to milliseconds [3][5]
国网莆田供电公司：柔直技术助力湄洲岛绿电消纳 打造海岛零碳智慧能源样板
Zhong Guo Neng Yuan Wang·2025-10-31 12:43