基于影子价格和空间误差面板数据模型的配电网投资优化方法

Investment optimization method of a distribution network based on shadow price and a spatial error panel data model

针对目前配电网的投资分配忽略地理邻接及电网互联影响的问题,提出了一种基于影子价格和空间误差面板数据模型的配电网投资优化方法。首先建立由底层指标和目标层指标构成的评价体系,利用最优化问题的求解方法求解各底层指标的影子价格和最优解。据此,结合各层指标权重得出配电网综合评分。引入空间误差面板数据模型,根据综合评分结果,构建投资效益测算模型。以综合评分最高为目标,通过寻优得出效益最大化的投资额分配方案。以贵州省五个地区配电网的实际数据为例进行投资分配。算例分析结果表明,所得投资分配方案符合各地区配电网的发展情况,可以实现投资效益的最大化。

Neglecting the influence of geographical adjacency and grid interconnection in distribution network investment allocation causes a problem.To solve this an optimization method of distribution network investment based on shadow price and a spatial error model is proposed.First,an evaluation system consisting of the bottom level indicators and the target level indicators is established.Then the optimal solution and shadow price of each bottom level indicator is established using the solution method of the optimization problem.On this basis,the comprehensive score of the distribution network is obtained by combining the weight of each level indicator.The spatial error model is introduced and the investment benefit calculation model is constructed according to the comprehensive score results.With the highest score as the goal,the investment allocation scheme with the maximum benefit can be obtained through optimization.This paper takes the actual data of the distribution network in five areas of Guizhou Province as an example to allocate investment.The results show that the investment allocation scheme is in line with the development of the distribution network in different regions and can maximize the investment benefit.