【摘要】 考虑不同层级电网性能评估,研究电网投资分配方法。首先根据不同特点将电网划分为不同层级,并建立不同层级电网的性能指标体系;应用模糊数学综合评价方法对电网性能进行综合评估,并利用logistic曲线对电网性能与累计投资的关系进行拟合;以电网性能裕度的方差最小为目标建立投资分配模型;最后,以我国东部某省电网为算例进行验证分析,给出该省"十三五"期间不同层级电网的投资分配额,结果合理可信,验证了本文所提出的投资分配方法的可行性。更多还原

【Abstract】 Considering the performance evaluation of different levels of power grid,this paper studies an investment allocation method.Firstly,we divide power grids into different levels according to their different characteristics,and establish the performance index systems of different levels of power grid.We applied comprehensive evaluation method based on fuzzy mathematics to evaluate the grid performance,and used the logistic curve to fit the relationship between grid performance and cumulative investment.Then,we established the investment allocation model with the minimum variance of the grid performance margin as the target.Finally,the power grid of a province in eastern China was conducted to make validation and analysis as an example,and the investment quota of different levels of power grid during the "13th Five-year plan" period was is given.The results are reasonable and credible,which proves the feasibility of the proposed investment allocation method.更多还原