Real-time pricing of distribution network based on node load sensitivity

Abstract

The smart distribution network requires the customers to participate in the regulation of grid, optimizes the electric curve and realizes the peak load shifting by using the real-time pricing. According to the geographical distribution of loads in the distribution network, the sensitivity of the loss of distribution network to nodal load is derived, and the model of the sensitive relationship of load node is provided. Combing the model and the elasticity curve of electric demand, the influence of different kinds of loads on real-time pricing is analysed. And the model of real-time pricing for distribution network is proposed. The simulation result based on the IEEE69 nodes system shows that the longer power supply radius and the bigger the load density are, the bigger the sensitivity of nodal load is and the higher the real-time price of node is. At the same time, the bigger the elastic demand is, the more the real-time pricing changes. The result also shows that the peakvalley difference of the grid is reduced significantly.