一種針對屋頂光伏系統(tǒng)的電能質(zhì)量評估方法研究
史恒逸
(南京理工大學(xué) 自動化學(xué)院, 江蘇 南京 210094)
摘 要:層次分析法(AHP)是電能質(zhì)量評估的一種常用方法,但易受到主觀意志的干擾。研究了一種將層次分析法與熵權(quán)法結(jié)合形成主客觀結(jié)合的電能質(zhì)量評估方法,通過引入熵權(quán)法將各指標的實際波動情況引入權(quán)重計算中,以此減小主觀因素對權(quán)重分配的干擾。介紹了電能質(zhì)量的綜合評估流程,對電能各指標權(quán)重系數(shù)的計算進行了闡述,仿真實驗表明該種方法得出的電能質(zhì)量更加符合實際情況。
關(guān)鍵詞:光伏;電能質(zhì)量;綜合評估;層次分析法;熵權(quán)法
中圖分類號:TM714 文獻標識碼:A 文章編號:1007-3175(2019)11-0001-04
Comprehensive Evaluation of Power Quality of Rooftop Photovoltaic Access System Based on
Improved AHP and Entropy Weight Method
SHI Heng-yi
(School of Automation, Nanjing University of Science and Technology, Nanjing 210094, China)
Abstract: The analytic hierarchy process (AHP) is a commonly used method for the power quality assessment, but it is easily disturbed by subjective will. This paper researched on a kind of power quality assessment method combined the AHP with the entropy weight method including subjective and objective elements. The entropy weight method was used to make the actual fluctuation of each index introduced to the weight calculation, so as to reduce the interference of small subjective factors on the weight distribution. Introduction was made to the comprehensive assessment process of power quality and expounded each index weight coefficient calculation. The simulation results show that the power quality obtained by this method is more in line with the actual situation.
Key words: photovoltaic; power quality; comprehensive evaluation; analytic hierarchy process; entropy weight method
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