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The Research of Protective Relay Simulation Model Based on Improved Logical Method for Substation

Author: ZuoKai
Tutor: ChangXianRong
School: North China Electric Power University
Course: Electrical Engineering
Keywords: Relay logic simulation Data structure Delineation of protection start range Tree linked list Breadth-first search
CLC: TM774
Type: Master's thesis
Year: 2011
Downloads: 35
Quote: 0
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Abstract


In this paper, the substation relay protection device logic simulation research background , the the relay basic principles and VC object-oriented programming features combined application of improved the logic discrimination protection device modeling . Fault analysis unit and a logical judgment unit is a major component of the principles of the logic simulation unit, the subject of the logic simulation model improvement is primarily for the part . Logic judgment unit , the paper focuses on the analysis the protection device simulation model of the data structure ; improved the delineation of the scope of protection start characterized relay logical simulation model and the data structure of the model table of contents and hierarchical relationships re- design, to achieve the first search for the purpose of re - judgment . The simulation is realized , first establish a good protection device logic simulation model , and in accordance with the design model split into various model table . For failure analysis unit , the paper defines the approximate start of the scope of the protection ; completed in accordance with the characteristics of the subject based on the breadth-first search of the network topology and its corresponding improvement ; protection with the relationship used to store search results and determine the tree linked list ; improve the analysis of the type of fault . Finally, the total simulation process is easy to read data protection level table promoter . Meanwhile, complete with equipment modules , primitive module connection , application adjacent table to do to protect the device and sub- protection , child protection and switch data storage , and described in detail in the build protective device simulation model encountered the main technical problems and corresponding solutions . The example shows : the rational design of simulation model of the protection devices , has a good prospect .

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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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