2016
DOI: 10.1051/matecconf/20179101048
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Mathematical Simulation of the Transformer Differential Protection, Based on the Time-Impulse Principle

Abstract: Abstract. The modern electric power systems (EPS) are large, multiparameter, stiff, non-linear and dynamic systems. Control and protection of such systems are extremely complex and urgent tasks. It is confirmed by the statistic of accidents in EPS: about 25 % of severe accidents are caused by wrong actions of relay protection (RP) and automation of EPS. The 30 % of these incorrect actions are caused by inadequate setting. The goal of this work is to solve the problem of RPs setting through the usage of detaile… Show more

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Cited by 4 publications
(3 citation statements)
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“…Hardware and software simulation tools appropriate for modeling failing with this problem in virtue of the limited mathematical calculations, and the impossibility of solving large systems of differential equations describing processes in EPS. Moreover, when solving the systems of differential equations by numerical methods, the computational error accumulates, which reduces the reliability of the simulation results [4][5][6]. Various scientific community and research laboratories when modeling large wind parks are necessity to apply certain limitations and assumptions, applying equivalent models in calculations.…”
Section: Wind Farm Modelingmentioning
confidence: 99%
“…Hardware and software simulation tools appropriate for modeling failing with this problem in virtue of the limited mathematical calculations, and the impossibility of solving large systems of differential equations describing processes in EPS. Moreover, when solving the systems of differential equations by numerical methods, the computational error accumulates, which reduces the reliability of the simulation results [4][5][6]. Various scientific community and research laboratories when modeling large wind parks are necessity to apply certain limitations and assumptions, applying equivalent models in calculations.…”
Section: Wind Farm Modelingmentioning
confidence: 99%
“…The electric power industry, as well as many others, frequently requires the assessment of risks of overvoltage [3,9], accidental losses and destruction caused either by real values exceeding standard operating limits or by reduction of service life parameters relative to regulations [4]. This requires the knowledge of total probabilistic characteristics of the parameters of interest in the form of laws of probability.…”
Section: Introductionmentioning
confidence: 99%
“…A voltage boost (for example, at the stator winding terminals) can lead to insulation failure and damage in the windings of the generator or transformer of the generator-transformer unit [1]. Dangerous voltage boost for the windings insulation result from the disappearance of the magnetic flux in the stator and a generator speed increase, which occurs when generation shedding is.…”
Section: Introductionmentioning
confidence: 99%