主-微网多目标联合调度研究

Research on Multi-Objective Combined Dispatching of Main-Micro Grid

建立了包含多节点、多约束条件、多目标的主-微网联合调度模型,对模型中的发电节点、变电节点、配电节点、接口节点、输电线路等建模元素进行了数学描述,并给出了模型的图形描述。基于模型引入多目标联合调度算例,分别为主网和微网设定发电成本最低和运行成本最小的调度目标,采用加权处理的方法将其转化为单目标问题并采用遗传算法编程求解。通过分析不同权值分配下的求解结果,说明提出的主-微网联合调度模型可实现不同侧重目标下的主-微网联合调度,验证了模型的有效性和适应性。

A combined dispatching model of main-micro grid which contains multi-nodes,multi-constraints,and mul-ti-objective is built in this paper.The mathematical for-mulation of generation nodes,transformation nodes,dis-tribution nodes,connecting nodes,and transmission lines are given,as well as the graphic description.A case study is introduced in which the objective of main grid is mini-mizing the generating cost and the objective of micro grid is minimizing the operating cost.Weighting approach is used to change the multi-objective problem into a sin-gle-objective problem.The problem is solved by program-ming with genetic algorithm.By analyzing the solution results under different weight assignments,it shows that the main-microgrid joint scheduling model proposed in this paper can realize the main-microgrid joint scheduling under different focus goals,which verifies the validity and adaptability of the model.