Parametric sensitivity analysis of SEL-421 distance relay algorithms used in compensated line

Conference on Innovation in Technology and Engineering Science

工业技术（总论）

Rohadi, N.^1

Electrical Engineering Department, Jakarta State of Polytechnic, Depok, Indonesia^1

关键词: Compensation circuits;    Global sensitivity analysis;    Impedance measurement;    Nonlinear factors;    Parametric sensitivity analysis;    Quasi-Monte Carlo;    System uncertainties;    Transmission line protection;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/602/1/012005/pdf
DOI  :  10.1088/1757-899X/602/1/012005

学科分类：工业工程学

来源: IOP

【 摘 要 】

This paper presents the use of Global Sensitivity Analysis (GSA) methods to analyze the sensitivity level of the performance of the impedance measurement algorithm of SEL-421 distance relay protection when used to perform transmission line protection with compensation circuit. This GSA technique was developed to see the dominance effect of system uncertainty (or factors). Two techniques that might be used for sensitivity analysis using GSA are Quasi-Monte Carlo (QMC) and data sampling with Sobol technique. Experimental is done with DIgSILENT software to do modeling of the power system, simulation, and calculation of impedance and algorithm error. The testing is carried out automatically with the help of the developed algorithm using DPL (DIgSILENT Programming Language). SIMLAB software, in this case, (with Sobol technique) is applied to generate some non-linear factor data and analyze the output of variations in impedance measurement errors.