The Calculation Of Nodal Price Based On Optimal Power Flow

The thesis first introduces the status of the theory researches and applications about nodal pricing in foreign electricity power market, than correspondingly analysis the advantages of nodal price system based on our country regional power market. The thesis introduces the applications of ACOPF and DCOPF in nodal pricing and sets up the mathematic model and the mathematic formulae based on the two OPF models. The simulate results of IEEE-14 bus system shows that the nodal price system can lead the dispatcher to change the power net operation mode to a more economical operation one and improve the efficiency of transmission resource and result in logical investment of power supply and transmission circuitry.The thesis farther introduces the traditional nodal pricing method considering the margin transmission losses and presents a ameliorative nodal pricing calculation method. The relevant results is analyzed and explained based on 3 bus system. Furthermore, a approximate calculation method is presented which is calculated more faster. The simulate results of IEEE-14...