文档介绍：【摘要】
随着电力工业市场化改革进行,确定公平合理的销售电价成为国内外学者普遍关注的问题。作为电力需求侧管理的一种重要措施,峰谷分时电价得到了较为广泛的应用。在考虑需求响应的基础上,研究分时电价能够在削峰填谷,提高电力系统的负荷率和运行稳定性的方面达到更好的效果。峰谷分时电价作为现阶段一种有效的需求侧管理手段在世界各国得到了广泛的应用,它通过价格信号引导消费者采取合理的用电结构和方式,达到削峰填谷的目的;同时它也是其他一些需求侧管理手段实施的前提条件和影响因素。
本文介绍了需求侧管理和需求响应的一些基本概念,需求侧管理与需求响应之间的关系,分时电价的分类及影响因素等。然后从配电公司的自身利益出发提出了一个考虑购电成本、需求响应以及其它因素的分时电价定价模型,并针对购电商是否具有市场力两种情况分别进行了分析。论述了该模型本质上属于非线性规划问题并探讨了其求解过程。
最后将该模型应用于某简单算例进行仿真计算。结果表明如果用户对分时电价具有较强的响应度,则在峰谷电价差较小时也可以实现用户与电力企业共同获利的目的。
关键词:需求侧管理;需求响应;分时电价;价格弹性;电力市场
【Abstract】
With the worldwide development of power market, it’s important to determine reasonable selling price. As an important measure of demand side management, TOU has been more widely used. On the basis of demand response, doing research about TOU can achieve better results on shifting load from high to low, improving the power system load rate and operating stable. As one of DSM methods, time-of-use TOU rate is applied in many countries. It motivates consumers adjusting their mode of power using and plishes the goal of load shifting. Moreover it influences the effects of some other DSM methods.
This article describes some of the basic concepts of DSM and demand response, relationship between Demand Side Management and Demand Response, the classification and the impact factors about TOU. Based on self-interest of pany, an optimal pricing model for time—of-use (TOU) electricity price is proposed,in which the purchasing cost,demand response and other factors are considered. The proposed model that in essence is a nonlinear programming problem which is analyzed for two conditions respectively, namely the power purchasers possess or do not possess market power, and the solution process of the proposed model is researched.
Applying the proposed model to a simple numerical case,the simulation results show that if the customers more intensively response to TOU electricity price,the customers and electric power enterprises can jointly reap profits even though electricity price v