河海大学学报(自然科学版)
河海大學學報(自然科學版)
하해대학학보(자연과학판)
JOURNAL OF HOHAI UNIVERSITY (NATURAL SCIENCES)
2014年
5期
460-464
,共5页
左萍%李威%秦川%陈汹%赵浚婧%鞠平%赵潞翔
左萍%李威%秦川%陳洶%趙浚婧%鞠平%趙潞翔
좌평%리위%진천%진흉%조준청%국평%조로상
电力负荷参数%参数辨识%指标灵敏度%牛顿法%粒子群算法
電力負荷參數%參數辨識%指標靈敏度%牛頓法%粒子群算法
전력부하삼수%삼수변식%지표령민도%우돈법%입자군산법
electric load parameter%parameter identification%index sensitivity%Newton method%PSO algorithm
利用牛顿法收敛性强的优点,将一阶灵敏度和二阶灵敏度引入牛顿法,得到基于二阶灵敏度的牛顿参数辨识法,并将其应用于电力负荷参数辨识。采用仿真算例将该方法与粒子群算法的参数辨识结果进行对比验证,结果表明牛顿参数辨识法的辨识精度高、辨识计算量小、辨识鲁棒性好。
利用牛頓法收斂性彊的優點,將一階靈敏度和二階靈敏度引入牛頓法,得到基于二階靈敏度的牛頓參數辨識法,併將其應用于電力負荷參數辨識。採用倣真算例將該方法與粒子群算法的參數辨識結果進行對比驗證,結果錶明牛頓參數辨識法的辨識精度高、辨識計算量小、辨識魯棒性好。
이용우돈법수렴성강적우점,장일계령민도화이계령민도인입우돈법,득도기우이계령민도적우돈삼수변식법,병장기응용우전력부하삼수변식。채용방진산례장해방법여입자군산법적삼수변식결과진행대비험증,결과표명우돈삼수변식법적변식정도고、변식계산량소、변식로봉성호。
Taking the advantage of strong convergence of the Newton method, we introduce the first-order sensitivity and second-order sensitivity to the method, and propose the Newton parameter identification method based on the second-order sensitivity. We applied the proposed method to parameter identification of electric loads. Through simulation, we compared the proposed method with the PSO algorithm. The results show that the proposed method has higher identification precision, utilizes a smaller amount of calculation, and is more robust.