中文摘要：

结合地市级电网的特点，从电网发展安全与质量、速度与规模、协调性、运行效率及经济效益5个维度对电网发展进行综合评价，并根据实地调研和数据挖掘方法确定了46个评价指标，从而构建了电网发展评价与诊断双层结构模型。利用多层次序关系法和模糊综合评价模型对三个样本的城市电网进行实证分析，利用雷达图从三个层次对电网发展水平进行分析，指出电网发展过程中存在的问题，为进一步促进电网的高效健康发展提供了决策依据。

英文摘要：

Combining the characteristics of the municipal power grid,this paper conducts a comprehensive evaluation on the power grid development from five dimensions including power grid safety and power quality,power grid development speed and scale,the coordination of the power grid,operation efficiency and economic benefit of the power grid.We also specify 46 evaluation indicators based on field research and data mining.Thus,this paper proposes a bilayer structure model to evaluation and diagnosis of grid development.Then multi-hierarchy order relation method and fuzzy comprehen-sive evaluation model are employed to empirical analysis of three sample cities.Finally,radar charts are acquired for ana-lyzing and diagnosing the development level of the power grid from three levels.The empirical results clearly point out problems existed in power grid and provide some policy implications for managers.