Research of Sub-Regional Grid Dispatching Based on Different Objectives

Abstract

A network model of multi-node connection based on different objectives is proposed to solve the problem of sub-regional power gird dispatching. The network model is based on the theory of complex network, consisting of power generation terminals, middle terminals, utilization terminals, connecting edges and so on. The network model is described both mathematically and graphically. Genetic algorithm is used to solve the two-regional numerical examples. The first region chooses minimum carbon emission as first sub-objective, while the other region chooses the combination of minimum purchase cost and minimum coal consumption as second sub-objective. Weighted method is used to transfer the two sub-objectives into a single objective. Result shows that proposed model can achieve sub-regional dispatching with sub-regions taking environmental and economic dispatch as objectives respectively.