Study Of Optimization Transaction Model On Complex Electricity Power Market

Electricity power problem catches more and more attentions of the governments and public. The evolution procedure on mechanism of the electricity system commercialization is accelerating. To establish a competitive electricity market is the key of the evolution. Currently, there are mainly three trade modes in the electricity market: pool market, bilateral mode, multilateral mode. Based on those three modes, a competitive electricity market can be well constructed as a result of the research and comparative analysis on competition and transaction mechanism of the market model.The thesis focuses on transaction mechanism between power supplier and buyer under different modes and different conditions in electricity market. We construct models under pool market and bilateral mode based on the free bidding market point and provide corresponding formulations. Then we construct another model based on the independent system operator's market. A comparison is conducted to demonstrate the organizer's effect to the market.There are five chapters in the thesis:In the first chapter we introduce the background of the electricity power market and its fundamental concepts, as well as the latest study results.In the second chapter we clarify the transaction process, the fundamental assumptions and expressions.In the third chapter we construct a simple one-way trade model based on pool market and a complicated double auction model based on the bilateral mode considering the free bidding market. Under these two transaction modes, we provide different conformations with different offering price curve and asking price curve, and also the one-way model with power transportation cost constraint. Different formulations arc provided, which can be easily solved by existing algorithm.In the forth chapter we consider a bilateral free bidding market aiming at double auction model with power transportation cost constraint, construct the market equilibrium condition, equivalently formulate an easy solved variational inequality. Then we make a comparison with an optimization model of independent system operator's market and provide conclusions under other formulations and solution analysis.In the last chapter, we summarize key points of the thesis.