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Observability Analysis of Distribution System Based on Topological Arithmetic

Author: ZuoYueZuo
Tutor: JiaHongJie
School: Tianjin University
Course: Proceedings of the
Keywords: Responsible for network segmentation Observability analysis Topological method Observability Island The balance of the computational burden
CLC: TM711
Type: Master's thesis
Year: 2009
Downloads: 83
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Abstract


The study and practice of the intelligent distribution network is in its infancy , and involve a number of technical areas , including accurate estimate is the basis of the intelligent distribution network research . The large-scale complex power network state estimation can be distributed computing to achieve effective solving . Observability analysis of the distribution network state estimation based on depth scientific observability analysis method suitable for Distribution State Estimation distributed solving , has important theoretical significance and practical value . This paper are as follows : . Article gives an effective distribution network segmentation method to large - scale distribution networks connected sub- divided into a given number of network to guarantee the implementation status of each sub- network estimated calculation ( referred to herein as the computational burden ) are approximately equal. The segmentation method consists of two parts : one is the formation of a depth-first search tree ; given power network is divided into the network to communicate with each other, and calculation the basic equal burden of sub- network algorithm . IEEE-13 node system simulation show that the method can effectively achieve the segmentation of the large - scale distribution networks , distributed computing support for Distribution State Estimation . 2 distribution network the observability analysis algorithms : the law on the basis of the analysis measurement Island circuit Kirchhoff theorem introduced each measurement on the island ( injection measurement known) simply determine a complex voltage variable to achieve the characteristics of the state estimation . Further , the use of the the available injection measurement measurement Island merge . Taking this approach can be uniquely determined \IEEE-13, IEEE-34 and IEEE-37 node system to verify the correctness of the proposed method . This work has some help for the to seek distribution network segmentation method , and the network can be based on observation and analysis .

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CLC: > Industrial Technology > Electrotechnical > Transmission and distribution engineering, power network and power system > Theory and Analysis > Network analysis,power system analysis
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