Transactions of China Electrotechnical Society  2017, Vol. 32 Issue (23): 176-184    DOI: 10.19595/j.cnki.1000-6753.tces.161372
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Correction Algorithm of Direction Finding for Transient Voltage Disturbance Considering Distributed Generators
Huang Feiteng, Nan Yurong, Weng Guoqing, Yang Xiaodong
College of Information Engineering Zhejiang University of Technology Hangzhou 310023 China

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Abstract  Considering the influence of new energy Distributed Generators (DG) interconnection on the intelligent power distribution network,an extendable universal model of the distribution network with DG is constructed.Based on the equivalent conversion of model structure,the influence factors of direction finding misjudgment by power quality monitor is analyzed.Two influence law of direction finding for power quality (PQ) disturbance are proposed innovatively with DG interconnection,for the type of voltage sag or voltage temporary rise.Then,a new direction finding algorithm of PQ disturbance is presented,based on correction by influence law.Multiple Distributed Generators are connected to the IEEE 13 and the IEEE 34 model.The Matlab simulation shows that,the proposed new algorithm can enhance the accuracy of direction finding for PQ disturbance,and this concise algorithm has the advantages of strong ability to resist noise.
Key wordsDistributed generation      power quality      disturbance source      direction finding      distribution network     
Received: 30 August 2016      Published: 22 December 2017
PACS: TM711  
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