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Research on Simulating Verification System for Power Setting of Relay Protection

Author: LiZhi
Tutor: RenJianWen
School: North China Electric Power University
Course: Proceedings of the
Keywords: Relay Automatic drawing Action trajectory Simulation verification
CLC: TM774
Type: Master's thesis
Year: 2011
Downloads: 60
Quote: 0
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Abstract


Due to the diversity of the network operation mode , the protection setting may not be able to fully meet the reliability, sensitivity , selectivity , speed mobility requirements , unreliable protection setting will inevitably lead to protection malfunction and cause mass power outage . Currently, many of the existing relay setting calculation software fault calculation part and setting calculation part improvements to make the protection setting more reasonable , greatly improving the reliability of the power grid operation , but these software also exists graphical modeling difficult maintenance inconvenient and imperfect aspects of the problem . In order to solve these problems, in-depth study of protection setting on the grid simulation verification system , mainly the following aspects : 1 . Elaborate design ideas as well as the overall structural characteristics of the system , and introduce a system maintenance module , fault calculation module , setting calculation module , set the value of simulation and verification module functionality . Using graphical modeling thought , combined with plant station map and grid system wiring and plant station map and grid Automatic Drawing program designed to solve the graphics maintenance module modeling difficult , inconvenient maintenance aspects. 3. Whether the typical relay operating characteristics compiled for the computer module , the module through the import tuning and measured values ??, measurement angle , using the method of the traditional numerical calculation with intuitive graphical representation of the common judgment of the protection action correct. By the basic principles of simulation verification and the fixed value to determine the combination of law and logic to determine the design method of the simulation calibration procedure design, programming , achieve a simulation verification module functions . Finally, the summary of the major work done in this article , the protection setting simulation check software development and the future direction of improvement .

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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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