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The Research of Wide Area Protection Low-voltage System Based on Grid Computing

Author: ShiLingPeng
Tutor: ZhangYan
School: Shanghai Jiaotong University
Course: Proceedings of the
Keywords: Wide-area backup protection Grid computing Backup protection expert system Protection zone delineation
CLC: TM774
Type: Master's thesis
Year: 2008
Downloads: 18
Quote: 0
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Abstract


With the electricity market continues to mature , the continuous expansion of the power grid , the power system in the face of interference , showing unprecedented vulnerability . Today the growing scale of the grid , the further improvement of the voltage level and gradually introduced in the electricity market mechanisms , the security of the power system is facing serious challenges , and therefore a higher demand performance of the relay . Traditional backup protection can not take care of the entire interconnected grid, generally only cover the local power grid , and does not consider the impact of their actions on the entire grid . Wide area protection proposed will relay the introduction of a whole new field . With today 's mature communications and computer technology , shared WAN within all relevant electrical quantities , area protection and control decisions made ??for grid failure and abnormal operating conditions . This article describes some of the wide-area protection concepts related with the main idea , and highlight the problem of low-voltage grid line configuration , and low-voltage lines in the wide - area protection concepts . Grid Computing (Grid Computing) provides a good technology platform for the realization of the wide-area protection grid of supercomputers , storage space , data, information , applications , and other resources can be well positioned to meet the wide-area protection system of data processing and storage , as well as the exchange of information and sharing of the requirements. This article describes the main concept of grid computing , the basic structure of the power grid relay protection system . In this paper, a wide area protection grid environment several application programs, including the online division of the WAN protected areas , WAN primary protection algorithm , wide-area backup protection algorithm . Grid platform for wide-area protection the various required network status and equipment investment status and other information , based on this , a wide area protection system can be based on the topology of the grid , to protect the operation of the case with the opening of the circuit breaker off state online division of protected areas , in order to meet the needs of the different protection configuration ; wide-area backup protection to ensure the stability of the system in the region as a target for protection and circuit breaker through the grid platform action , this article describes a novel action coefficient backup protection expert system , system simulation can prove the superiority of the algorithm .

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CLC: > Industrial Technology > Electrotechnical > Transmission and distribution engineering, power network and power system > Power system protection > Protection devices
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