摘要
针对电能质量综合评估的特点,基于信息论中的最大熵原理,提出了一种新的电能质量综合评价模型。利用层次分析法获得各指标的主观权重,利用熵权法确定各指标的客观权重,通过乘法组合赋权原理得到综合权重。巧妙地将熵理论融合到目标函数中,既消除了随机性的影响又提高了结果的分辨率。实际算例分析,验证了本模型的有效性和可行性。
Aiming at the characteristics of the comprehensive evaluation of power quality,a new model for assessing power quality is put forward based on the maximum entropy theory.By use of the analytic hierarchy process obtained subjective weights of each indexes,by means of entropy principle obtained objective weights of each indexes,at last the synthesis weighting can be determined based on multiplication principle.Entropy theory integrated into the objective function skillfully,not only eliminate the randomness of the results,but also enhance the resolution.The effectiveness and feasibility of the model are verified by analysis of practical examples.
出处
《电气开关》
2011年第3期55-57,76,共4页
Electric Switchgear
关键词
电能质量
综合评估
最大熵原理
主观权重
客观权重
power quality
comprehensive evaluation
maximum entropy principle
subjective weight
objective weight
