考虑负荷不确定性的微电网优化调度研究

Microgrid Optimal Dispatching Strategy Considering Load Uncertainty

摘要:

近年来，随着能源危机及环境污染问题不断加重，微电网作为一种新型的能源网络化供应与管理结构，为新 能源的广泛接入提供了一种有效途径，在降低能耗减少环境污染的同时也提高了系统运行的可靠性和灵活性。为提 升微电网运行的经济性与节能环保性，基于含风力、光伏、燃气轮机、燃料电池及蓄电池的微电网模型，在综合考虑能 量供需平衡、爬坡速率约束及蓄电池充放电容量条件下，运用混合整数规划优化方法，建立了考虑负荷的不确定性因 素下以离网型微电网为主的微电网经济调度模型。

Abstract:

With the increasing of energy crisis and environment pollution in recent years，the microgrid，as a new type of energy network supply and management structure，provides an effective way to increase the integration of renewable energy resources． It can reduce energy consumption and environmental pollution，and at the same time it can also improve the reliability and flexibility of the system． In order to improve the operation performance of microgrid from economic and environmental point of view，a microgrid model with wind turbine，photovoltaic，micro gas turbine，fuel cell and battery is established． With the consideration of load uncertainty，energy balance of supply and demand，ramp rate constraints and battery charge / discharge capacity constraints，the mixed integer programming based islanding mircogrid optimal economic dispatch strategy has been developed．