基于综合权重与TOPSIS法的光伏并网影响综合评价

A Comprehensive Weighting and TOPSIS Method Based Assessment on the Impact of Grid-Connected PV Generation

针对现有评价光伏并网影响指标不足或不尽合理的情况,提出了一套更为全面合理的两级化评价指标体系,对于一级和二级指标,分别采用主观赋权法和熵权法求取权重,从而得到二级指标的综合权重。采用综合权重和逼近理想解的排序方法(technique for order preference by similarity to ideal solution,TOPSIS)对光伏并网的影响进行评价,不仅可以体现主观赋权的优越性,同时还能充分利用各种数据信息使评价结果更符合实际情况。实例表明,该方法是一种合理有效的评价方法。

The current evaluation index for assessing the impact of grid-connected PV generation is neither adequate nor sufficiently meaningful. This paper proposes a more comprehensive two-stage evaluation index system. The weights of primary and secondary indexes are estimated based on the subjective weight method and the entropy method respectively. The comprehensive weight for the secondary index is then obtained. The comprehensive assessment of the impact of grid-connected PV generation based on comprehensive weights and TOPSIS （technique for order preference by similarity to ideal solution, TOPSIS） method can not only reflect the superiority of subjective weighting, but also make full use of data information to make the evaluation results more realistic. The case examples show that such approach is a reasonable and effective evaluation method.