基于信息還原與膜計算的配電網(wǎng)故障定位
發(fā)布時間:2018-10-11 08:50
【摘要】:針對配電網(wǎng)饋線終端設(shè)備(FTU)上傳信息易丟失、畸變,導(dǎo)致故障定位準(zhǔn)確率不高的缺陷,提出結(jié)合FTU上傳信息還原預(yù)處理與膜計算優(yōu)化的配電網(wǎng)故障定位方法。該法依據(jù)所構(gòu)建的信息還原預(yù)處理模型,將FTU上傳信息先進行丟失信息的補全,再進行信息畸變的判斷與校正,從而為故障定位提供較為真實的過電流信息;構(gòu)建了一種新的膜計算方式,在局部尋優(yōu)中采用高精度捕魚算子,全局尋優(yōu)中采用快速收斂的蜂群算子,并動態(tài)調(diào)整控制參數(shù)limit,采用預(yù)處理后的信息以及所提出的基于膜計算的配網(wǎng)故障搜索方法,進行配電網(wǎng)故障區(qū)段定位,進一步提高了故障定位算法的容錯性。仿真結(jié)果表明,對大規(guī)模配電網(wǎng)應(yīng)用所提方法進行配電網(wǎng)故障定位,較之遺傳算法、仿電磁學(xué)算法等在準(zhǔn)確性、快速性、容錯性等方面有較明顯的優(yōu)勢。
[Abstract]:In view of the defect that the (FTU) upload information of feeder terminal equipment of distribution network is easy to lose and distortion, which leads to the low accuracy of fault location, a fault location method based on the preprocessing of FTU upload information reduction and the optimization of membrane calculation is proposed. According to the preprocessing model of information reduction, the FTU uploads the information to make up the lost information first, then to judge and correct the information distortion, so as to provide more real information of overcurrent for fault location. In this paper, a new method of membrane calculation is constructed, in which the high precision fishing operator is used in local optimization, and the rapidly convergent bee colony operator is used in global optimization. The dynamic adjustment of control parameters limit, adopts the preprocessed information and the proposed fault search method based on membrane calculation to locate the fault section of distribution network, which further improves the fault tolerance of fault location algorithm. The simulation results show that the proposed method has obvious advantages in accuracy, rapidity and fault tolerance compared with genetic algorithm (GA) and imitative electromagnetics algorithm (EME).
【作者單位】: 湖南大學(xué)電氣與信息工程學(xué)院;湖南省電力公司;
【基金】:國家自然科學(xué)基金項目(61173108,60973032,61472128) 湖南省自然科學(xué)基金重點項目(10JJ2045,14JJ2150)資助
【分類號】:TM76
[Abstract]:In view of the defect that the (FTU) upload information of feeder terminal equipment of distribution network is easy to lose and distortion, which leads to the low accuracy of fault location, a fault location method based on the preprocessing of FTU upload information reduction and the optimization of membrane calculation is proposed. According to the preprocessing model of information reduction, the FTU uploads the information to make up the lost information first, then to judge and correct the information distortion, so as to provide more real information of overcurrent for fault location. In this paper, a new method of membrane calculation is constructed, in which the high precision fishing operator is used in local optimization, and the rapidly convergent bee colony operator is used in global optimization. The dynamic adjustment of control parameters limit, adopts the preprocessed information and the proposed fault search method based on membrane calculation to locate the fault section of distribution network, which further improves the fault tolerance of fault location algorithm. The simulation results show that the proposed method has obvious advantages in accuracy, rapidity and fault tolerance compared with genetic algorithm (GA) and imitative electromagnetics algorithm (EME).
【作者單位】: 湖南大學(xué)電氣與信息工程學(xué)院;湖南省電力公司;
【基金】:國家自然科學(xué)基金項目(61173108,60973032,61472128) 湖南省自然科學(xué)基金重點項目(10JJ2045,14JJ2150)資助
【分類號】:TM76
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