孤岛微电网容量配置优化研究

Research on the Capacity Optimization of Off-grid Microgrid

微电网是一种将分布式电源、负荷、储能单元、能量转换器(PCS、DC/AC变换器等)以及监视、控制、保护设备等有机整合在一起的小型发配电系统。典型的分布式电源包括光伏发电、风力发电和柴油发电。根据分布式电源的特点,它可广泛应用于岛屿、偏远地区、缺电地区以及工业园区等场景。孤岛微电网作为大电网末端的重要补充,对于解决无电网覆盖区域的供电具有重要意义。因此,研究孤岛状态下微电网典型日负荷分析、光伏电池、储能电源容量优化配置,以保证特定负荷需求条件下微电网的经济稳定运行。

Microgrid is a small power generation and distribution system that integrates distributed power sources,loads,energy storage devices,converters,and monitoring and protection devices.Typical distributed power sources include PV,wind power,diesel generator sets.Microgrid can be widely used in islands,power shortage areas and industrial parks.As an important supplement at the end of large grids,off-grid microgrids are of great significance for solving power supply in areas without grid coverage.This article studies the typical daily load analysis of off-grid microgrids,and optimizes the allocation of PV and energy storage to ensure the economical and stable operation of the microgrid under specific load demand conditions.