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Research on Fixed Value Setting and Design on Management System of Relay Protection for Power Plan

Author: ShiPeiJin
Tutor: SuXiaoHuiï¼›ZhangYong
School: Xi'an University of Technology
Course: Computer technology
Keywords: Relay Failure Analysis Setting Calculation Setpoint Management Power plant
CLC: TM774
Type: Master's thesis
Year: 2010
Downloads: 87
Quote: 0
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Abstract


Protection devices as an important component of the secondary part of the power system , plays a very important role to ensure system security , stability and economic operation . Power plant relay setting calculation has long been is basically neat set to complete , although there have been some power plant relay protection setting calculation software , but difficult to promote flexibility and practicality , there are some problems . Therefore, to improve the speed and accuracy of power system protection device tuning and checking work to meet the requirements of modern power system safe and stable operation of great significance in the development of the power system . Proceed from the actual situation of the power plant , combined with the power plant overhaul project , the requirements of the protection setting tuning and management software , a plant protection setting tuning system . Established the overall structure of the system , and build a mathematical model of the system and various components of the module , and a detailed description of the function of each module , in order to ensure that the system is fully functional and accurate computation data . Fault calculation is a crucial part of setting calculation . This paper describes the various components and fault current calculation model , and sub- phase short circuit and asymmetric short two types according to the needs of the power plant relay setting calculation designed to short-circuit calculation algorithm processes , combined with the overhaul project the calculation and the actual function of the fault current . Power plants important protection setting calculation principle method of analysis based on the characteristics of power plant relay setting calculation are summarized , and provide the basis for the choice of setting calculation mode . Combination of value tuning module gives processes and structure of the program , to protect the principle of the protection module combination , setting setting calculation function to be trial and error , and in practical work . Setting calculation and setting management combine to achieve a given value storage management . Combination of protection setting fixed value management library , users can manage , query single of setting parameters and electrical equipment .

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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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