| 000 | 03431nlm1a2200385 4500 | ||
|---|---|---|---|
| 001 | 661709 | ||
| 005 | 20231030041756.0 | ||
| 035 | _a(RuTPU)RU\TPU\network\32493 | ||
| 090 | _a661709 | ||
| 100 | _a20200205a2019 k y0engy50 ba | ||
| 101 | 0 | _aeng | |
| 102 | _aUS | ||
| 135 | _adrcn ---uucaa | ||
| 181 | 0 | _ai | |
| 182 | 0 | _ab | |
| 200 | 1 |
_aInvestigation of Processes in the Measuring Part of Digital Devices of Relay Protection in the MATLAB Software Package _fM. V. Andreev |
|
| 203 |
_aText _celectronic |
||
| 300 | _aTitle screen | ||
| 320 | _a[References: p. 537 (7 tit.)] | ||
| 330 | _aIt was revealed that one of the main reasons for erroneous operation of relay protection devices (RPs) is it being set in a way that does not correspond with the real operating conditions, which in turn is determined by the design procedures of the RP settings. An analysis of modern methodologies of RP adjustment revealed that there are no significant changes as compared with the guidelines of the past decades and, accordingly, there are the same disadvantages. The development of new adjustment techniques using detailed mathematical models taking into account the features of specific RPs and the processes in the measuring converters are considered in the work. Within the framework of solving this problem, mathematical models of measuring part of digital relay protection for various types of intermediate current transformers (ICTs) (active and passive) and filters (of Butterworth and Chebyshev types) are synthesized and a comparative analysis is done of their influence on the output signal waveform in the MATLAB software package, including taking into account the magnetization of measuring current transformers. It is revealed that the simplest (explicit and implicit Euler methods) numerical methods are not suitable to solving the created mathematical models. A comparative analysis of calculation results by these methods and by the more advanced Runge–Kutta method is conducted. The presented theoretical and practical studies made it possible to reliably formulate the requirements for detailed mathematical models of RPs. | ||
| 333 | _aРежим доступа: по договору с организацией-держателем ресурса | ||
| 461 | _tRussian Electrical Engineering | ||
| 463 |
_tVol. 90, iss. 2 _v[P. 530-537] _d2019 |
||
| 610 | 1 | _aэлектронный ресурс | |
| 610 | 1 | _aтруды учёных ТПУ | |
| 610 | 1 | _arelay protection | |
| 610 | 1 | _amathematical simulation | |
| 610 | 1 | _aoriented graph method | |
| 610 | 1 | _aрелейная защита | |
| 610 | 1 | _aматематическое моделирование | |
| 700 | 1 |
_aAndreev _bM. V. _cspecialist in the field of electric power engineering _cAssociate Professor of Tomsk Polytechnic University, Candidate of technical sciences _f1987- _gMikhail Vladimirovich _2stltpush _3(RuTPU)RU\TPU\pers\35035 |
|
| 712 | 0 | 2 |
_aНациональный исследовательский Томский политехнический университет _bИнженерная школа энергетики _bНаучно-исследовательская лаборатория "Моделирование электроэнергетических систем" _h192 _2stltpush _3(RuTPU)RU\TPU\col\23567 |
| 801 | 2 |
_aRU _b63413507 _c20200205 _gRCR |
|
| 856 | 4 | _uhttps://doi.org/10.3103/S1068371219070022 | |
| 942 | _cCF | ||