基于改进层次分析法、CRITIC法与逼近理想解排序法的输电网规划方案综合评价

针对进行输电网规划时难以量化各指标主观权重与客观权重的问题,提出了一种将改进层次分析法、基于指标相关性的指标权重确定(CRITIC)法和逼近理想解排序法(TOPSIS)相结合的输电网规划方案评价方法。该方法首先分别利用改进层次分析法与CRITIC法计算各指标的主观、客观权重,并将两权重结合得到综合权重;然后利用TOPSIS计算各规划方案与理想解的相对贴近度,以相对贴近度的大小为衡量标准,实现对规划方案的排序。这种综合考量主、客观权重的方法有效地利用了指标数据的客观信息,并充分考虑了实际电网规划中主观评判和决策的重要作用。以输电网规划常用的经典IEEE Garver-6节点系统为算例验证了所提评价方法的有效性。

Comprehensive evaluation of transmission network planning scheme based on improved analytic hierarchy process, CRITIC method and TOPSIS

Aiming at the problem that it is difficult to quantify the subjective and objective weights of each index in transmission network planning, an evaluation method of transmission network planning scheme which combines improved analytic hierarchy process, CRITIC(CRiteria Importance Through Intercriteria Correlation) method and TOPSIS(Technique for Order Preference by Similarity to Ideal Solution) is proposed. Firstly, the subjective and objective weights of each index are calculated by the improved analytic hierarchy process and CRITIC method respectively and the comprehensive weights are obtained by combining the two weights. Then, the relative closeness coefficient between each planning scheme and the ideal solution is calculated by using TOPSIS, which is taken as the measurement standard to realize the sorting of planning schemes. This method that comprehensively considers the subjective and objective weights effectively utilizes the objective information of index data and takes full account of the important role of subjective evaluation and decision in the actual network planning. The effectiveness of the proposed eva-luation method is verified by the typical IEEE Garver-6-bus system, which is commonly used in the transmission network planning.