含有海水抽蓄电站的海岛微网优化调度

A Optimization Dispatch Study of Micro Grid With Seawater Pumped Storage Plant in Isolated Islands

以风能为代表的新能源的迅速发展,为难以与大陆联网的海岛供电提供了新的解决方案。然而新能源往往具有间歇性与随机性,需要配备储能设备才能稳定的为海岛提供电能。提出了一种将海水抽蓄电站作为储能设备,配合风电场、柴油机组运行的海岛微网供电方案。对风电场、海水抽蓄电站以及柴油机组分别建模,考虑各自的运行约束及海岛负荷要求,提出了对海岛微网进行优化调度的方案。并根据海岛历史风电数据,选定了多个典型出力曲线,验证了该优化调度算法的有效性。

Rapid development of wind power provides a new solution for power supply in isolated islands. However, due to intermittent and stochastic nature of wind power, energy storage unit is required for power grid stability. This paper proposed a novel solution for power supply in isolated islands, including seawater pumped storage plant, wind farm and diesel units. Modeling of these three components is discussed and an optimization method for economic dispatch is developed. Based on historical data of wind farm, several typical scenarios of wind power output are selected and effectiveness of the proposed method is validated.