基于改进的AHP-CRITIC-MARCOS配电网设备风险评估方法

Improved AHP-CRITIC-MARCOS-based risk assessment method for distribution network equipment

实现配电网设备风险的准确评估对提高配电网的可靠性有着重要意义。针对在不同权重下同时考虑多种风险因素的评估问题,提出了一种基于改进的AHP-CRITIC-MARCOS配电网设备风险评估方法。首先,针对配电网设备风险问题选取合适的评估指标。其次,用改进的AHP方法结合CRITIC方法计算各指标的主客观综合权重。最后,利用多准则决策中的MARCOS方法计算待评估配电网设备的效用函数,并根据其对各设备的风险程度进行排序。通过算例验证了所提方法的有效性,结果可以用于设备升级改造的精准选择以及提升配电网的可靠性。

Realizing the accurate risk assessment of distribution network equipment is of great significance in improving reliability. There is an evaluation problem of considering multiple risk factors under different weights. Thus this paper proposes a risk assessment method based on an improved AHP-CRITIC-MARCOS method. First, it selects appropriate evaluation indicators for the risk of the equipment. Second, the improved AHP method combined with CRITIC method is used to calculate the subjective and objective comprehensive weight of each index. Finally, the utility function of the distribution network equipment to be evaluated is calculated using the MARCOS method in multi criteria decision-making, and the risk degree of each equipment is ranked accordingly. The effectiveness of the proposed method is verified by an example. The results can be used to accurately select equipment upgrading and improve the reliability of a distribution network.