电力需求价格弹性与系统最优备用的关系

随着我国电力改革的逐步深入，电力备用的市场化运营问题显得十分重要。介绍了电力价格弹性系数的概念，电力备用的定义与功能；从市场化运营的角度，基于用户的需求曲线和消费剩余理论，对市场条件下电力备用的价值与备用的需求曲线进行了研究，并探讨了系统最优备用水平的优化模型；通过案例分析，研究电力需求价格弹性系数与系统最优备用水平和备用价格的关系，即需求价格弹性系数越高，系统最优备用需求水平和备用价格越低，系统最优备用需求水平与价格，随电力需求价格弹性的变化而变化。对我国电力备用市场的理论研究与健康运营提出合理化的建议。

Electricity Price Elasticity and Optimal System Reserve

With the deepening reform of electricity market in China,people increasingly pay more attention to the market-oriented operation of the electric reserve market.This paper introduces the concept of electric price elasticity,the definition of electric reserve,its functions and the traditional way to determine the electric reserve level.From the angle of market-oriented operation,basing on the demand curve of customer and the theory of consumer surplus,this paper researches into not only elec-tric reserve value and its demand curve but also the optimization model of optimal reserve level.Furthermore,this paper uses case studies to analysis the relationship of price elasticity of electric demand,optimal reserve level and reserve price.The higher price elasticity of demand is,the lower system optimal reserve level and reserve price are.With the change of price e-lasticity of electric demand,optimal reserve level and reserve price changes.At last,this paper gives some rational suggestion to the demand theory study and the health operation of the electric reserve market in China.