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Research and Implementation of Line Protection Based on Integrated Protection and IEC61850

Author: HanJiaBing
Tutor: HeJingHan
School: Beijing Jiaotong University
Course: Electrical Engineering
Keywords: Integrated protection Line Protection IEC61850 Protect the modeling Logical node Modular
CLC: TM773
Type: Master's thesis
Year: 2011
Downloads: 131
Quote: 1
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Abstract


Integrated protection came into being with the development of digital substation and IEC61850 standards proposed new protection system. Compared with the traditional protection, integrated protection in real time throughout the substation information, facilitate new algorithms are implemented on the basis of the traditional protection and to make up for the deficiencies of the traditional protection, improve the performance of the protection. Most scholars integrated protection in the theoretical stage, put into practical application of integrated protection device is mostly a simple combination of the traditional protection products, and not from within the program to reflect the integration of the advantages of information sharing and IEC 61850 protection modeling. This study analyzed the IEC61850 standard definition and description of the concept of protection modeling, logical node data class, the protection of modeling basic methods and procedures, and pointed out the nature and meaning of IEC61850 for the protection of modeling. Integrated protection system software and hardware platform and software system architecture. Typical 110kV substation, for example, in accordance with the IEC61850 standard modeling based on design and implementation of integrated protection data definition storage system, the calculation of the amount of electrical basic preliminary data processing threads. IEC61850 standard of the logical node design ideas with integrated protection software threads and module structure is mapped to the logical node program modules, designed and implemented a generic function module with the general logic node module. Modular saver broke through the constraints of the protection function categories, created as an open platform for information exchange between all protection function module, more conducive to explore new protection coordination, enhance the protective properties. Typical protection function validation results show that the protection function is working properly. Modular saver based integrated protection can get a lot of sharing of information, as well as integrated protection features of Integrated Protection Line Protection impact analysis. Line Protection Fault Simulation and principles put forward a variety of application integration protected can bring to enhance the performance of line protection, including succession liquid to the improvement of the protection, the improvement of the protection of the single-ended power supply network segment II stage increased sensitivity of current protection, the improvement of the sensitivity of the zero-sequence protection and protection to refuse to move fast solutions. The above study and propose improvement program, which fully demonstrates the advantages of integrated protection in power system protection, but also for the problem can not be solved by the traditional line protection provided new ideas and possibilities.

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