配電網用電可靠性指標體系及綜合評估方法
發(fā)布時間:2018-10-19 18:35
【摘要】:針對現(xiàn)行供電可靠性指標體系無法準確反映用戶實際用電可靠性的問題,根據(jù)用電可靠性概念建立了評價指標體系,并設計一種基于改進熵權法的配電網用電可靠性綜合評估方法。首先,根據(jù)用電可靠性概念和評估需求,從用戶側指標和對比指標2個維度建立用電可靠性指標體系。7個用戶側指標從供電持續(xù)性及電能可用度2個方面反映用戶實際用電可靠性水平,2個對比指標旨在反映中低壓用戶之間線路的可靠性水平;然后綜合考慮可靠性評價要求及指標特性建立一種綜合評估方法,通過改進熵權法初步獲得指標權重,依據(jù)突出不合格指標的"越值懲罰"原則確定最終權重矩陣,加權求和得到評估對象的綜合評價值。最后,通過實例分析驗證該指標體系及綜合評價方法的有效性。
[Abstract]:In view of the problem that the current power supply reliability index system can not accurately reflect the actual power consumption reliability of users, the evaluation index system is established according to the concept of power consumption reliability. A comprehensive evaluation method of distribution power reliability based on improved entropy weight method is designed. First, based on the concept of reliability of electricity and the assessment of needs, The reliability index system of power consumption is established from two dimensions of user side index and contrast index. 7 user side indexes reflect the actual power consumption reliability level from two aspects of power supply continuity and power availability, and the two contrasting indexes aim at Reflect the reliability level of the line between the middle and low voltage users; Then a comprehensive evaluation method is established considering the reliability evaluation requirements and index characteristics. The index weight is obtained by improving entropy weight method, and the final weight matrix is determined according to the principle of "penalty over value", which highlights the unqualified index. The comprehensive evaluation value of the evaluated object is obtained by weighted summation. Finally, the effectiveness of the index system and the comprehensive evaluation method is verified by an example.
【作者單位】: 華南理工大學電力學院;廣東省綠色能源技術重點實驗室(華南理工大學);
【基金】:廣東省自然科學基金項目(2016A030313476)~~
【分類號】:TM732
本文編號:2282008
[Abstract]:In view of the problem that the current power supply reliability index system can not accurately reflect the actual power consumption reliability of users, the evaluation index system is established according to the concept of power consumption reliability. A comprehensive evaluation method of distribution power reliability based on improved entropy weight method is designed. First, based on the concept of reliability of electricity and the assessment of needs, The reliability index system of power consumption is established from two dimensions of user side index and contrast index. 7 user side indexes reflect the actual power consumption reliability level from two aspects of power supply continuity and power availability, and the two contrasting indexes aim at Reflect the reliability level of the line between the middle and low voltage users; Then a comprehensive evaluation method is established considering the reliability evaluation requirements and index characteristics. The index weight is obtained by improving entropy weight method, and the final weight matrix is determined according to the principle of "penalty over value", which highlights the unqualified index. The comprehensive evaluation value of the evaluated object is obtained by weighted summation. Finally, the effectiveness of the index system and the comprehensive evaluation method is verified by an example.
【作者單位】: 華南理工大學電力學院;廣東省綠色能源技術重點實驗室(華南理工大學);
【基金】:廣東省自然科學基金項目(2016A030313476)~~
【分類號】:TM732
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