摘要
掌握电力市场中电能需求随电能价格变动的规律(即需求响应规律)对于合理确定电价与市场开拓是极为重要的,而这一问题的关键是分析用户需求对价格的敏感度(即用户的价格需求弹性)。文中给出了电量电价弹性矩阵的建立过程,并分析了由于用户分类及电价分类不同所引起的弹性矩阵结构的不同。在此基础上,提出了一种弹性矩阵的简化方法。并通过算例,进一步给出了在中国当前零售端电力市场中,电量电价弹性矩阵的求取过程。结果分析表明,在这种情况下,自弹性系数与交叉弹性系数是互补型的。实际应用表明该模型能够反映当前市场中的需求规律,具有一定的实用价值。
In order to determine the electricity price reasonably and to extend the power market, it is important to master the principle that the energy consumption quantity varies with the price in power market (called demand-response principle). And the key to this problem is to analyze the customer's energy consumption quantity sensitivity according to electricity price (called price elasticity of demand). Therefore, this paper presents the constructing process of price elasticity matrix of demand, and analyses the difference of elasticity matrix structure based on different user classes and price sorts. Then it presents a simplified method for the elasticity matrix, and shows the calculating process in our current retail power market by an example. The result shows that the self-elasticity coefficients and the cross-elasticity coefficients are compensative. The actual application has proved that this model can reflect the demand-response principle in current market, and has potential of some practical applications.
出处
《电力系统自动化》
EI
CSCD
北大核心
2004年第5期16-19,24,共5页
Automation of Electric Power Systems
关键词
电量电价弹性矩阵
自弹性系数
交叉弹性系数
零售端电力市场
price elasticity matrix of demand
self-elasticity coefficient
cross-elasticity coefficient
retail power market
