Research On Critical Peak Prices Based On Demand Response

With the continuous improvement of Chinese electric power market,demand side management,especially the demand response,has been deeply studied and widely used in recent years.For these years,the electric power has played a particularly important role in China’s economic development.Although the power investment is increasing year by year,it still not enough to meet the increasing demand for the Chinese industry and the Chinese peple.In order to make sure about the safe operation of power grid and also to the users have reliable power supply,demand side management especially demand response starting using the user’s point of view.By using vigorously promote energy efficient equipment,promotion of cogeneration technology.And it also by means of price guiding users to change the way they using electricity.In order to achieve energy-saving emission reduction and improve the environment,the Chinese government try their best to improve energy utilization efficiency of the electric power industry,at the same time,they also try to achieve the optimal allocation of power resources.In this article,on macroscopic view,discuss the two basic theories in the study of power market,power demand side management and demand response,by studying its research background,research significance,research content are made the related in this paper.From the microcosmic,this paper introduces the theory of electricity price institute should be made a summary and conclusion.In this paper,by applying the fuzzy semi-gradient membership function in fuzzy mathematics,the peak electricity price period is to be divided into four parts.In the traditional application of the membership function,for the time division process,there will be some points in the peak or valley section of the possibility of close to 66%,thus it is difficult to determine their peak or valley properties.Aiming at this shortcoming,in this paper,the method to solve the problem is by introducing the method of the mean value theorem to determine the pealk and valley period.In this paper,we also use Ramsey pricing principles,according to the user’s demand elasticity and the differences marginal cost between each power supply enterprise,they are also be calculated.On the basis of this model,according to the supply enterprise,they are also be calculated.On the basis of this model,according to the requirements of the preset lower values,it eventually come to respond to the needs based on the critical peak pricing model.Example analysis shows that,the scheme based on the Ramsay pricing theory,can achieve the purpose of reducing the peak load according to the basic demand.Before and after the implementation of the electricity tariff plan,the impact on the user’s electricity consumption is very little.To a certain extent,it can play a role to smooth the load curve,achieve the purpse of reducing the peak power.