Study On Modeling And Analysis Of The Peak-Valley TOU Power Price In Electricity Market

Power supply companies' profits have seems decreased with the formation of the new electricity market, because the demand side TOU power price is stable in the given time, and the generation-side bidding price is unstable. On the other hand, the consumer's price response no better than zero, the consumers are out of the price undulation risk, but the power supply companies had to suffer the huge operation risk. So researche on the new TOU power price strategies are very important and necessary.The main research results in this dissertation can be given as following:Firstly, the bidding strategies and affections of generation companies on the TOU power price are analyzed; Supply function model is employed to simulate the bidding strategies of generation companies in power pool. Some meaningful results are obtained through the proposed equilibrium equations model, when different bidding parameters are selected to maximize profit of suppliers, such as the the numeral of generation company, the block bidding, and power demand elasticity. Based on these results, the affections between the bidding strategies and the TOU power price are discussed.Secondly, the important principles consider the factor of bidding strategies of generation companies and consumers gaming strategies are proposed to constitute the new TOU power price model under present electricity market. Based on these pricinples a new mathematical model of TOU power price is constructed, to evade electricity market risk, partition the peak-valley, ascertain the consumers' response curve, and protect the ambilateral profits.Thirdly, the affections of the TOU power price strategies for reducing the network loss, adjusting node voltage, improving load curve of power system, and protecting the consumers' benefits in electricity market are analyzed with applications of a city real time load data of Jiangsu province.Fourthly, by analysis the affections of the TOU power price on interruptible load management, excitation compensation coefficient and a utility model are proposed for ILM. Simulation results justified the proposed method is feasible and practical in present electricity market.Finally, demand side biddings are also researched; the bidding model considered generation-side and demand side is proposed. The research results make a foundation to further perfect the theory of TOU power price.