Powerflow calculations in powersystems considering traction load
| Autor: | V. V. Shestakova, A. V. Darkhanova, I. M. Kats |
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| Rok vydání: | 2021 |
| Předmět: |
программные системы
mathematic model электроэнергия business.industry Computer science medicine.medical_treatment specialized software systems перетоки качество traction load Structural engineering Traction (orthopedics) энергосистемы несимметричные режимы релейная защита utilitys grid railway transport метод Монте-Карло medicine математические модели Monte Karlo method тяговые нагрузки business железнодорожный транспорт nonsymmetrical modes |
| Zdroj: | IOP Conference Series: Materials Science and Engineering. 1019:012004 |
| ISSN: | 1757-899X 1757-8981 |
| Popis: | Nowadays, the negative impact of traction load on power system operation poses a serious problem that may lead to false tripping or even failures of relay protection devices and reduce the quality of electrical energy. This situation is typical for the Zabaikal power system, in which in some areas the share of electricity consumption by railway reaches 70% of total consumption. A computing tool, that would allow simultaneous analysis of the modes, both in the utility’s grid and in the traction network, do not exist. The inability to carry out such analysis often leads to inconsistency in the actions of control centers and railway transport authorities, especially when maintenance planning. Mathematic modeling in such software systems as “Mustang”, “RastrWin3”, “MathCAD”, “Matlab/Simulink”, “PSCAD”, “Kortes”. The developed model represents Zabaikal power system and contain detailed railway between substation Razmahnino – Shilka, Chita – Mogocha. Negative-sequence voltage unbalance factors were calculated for the case of train movement between substation Razmahnino and substation Shilka. Also, the necessity of back-up relays tripping values correction is stated. It was shown that for the powerflow calculations taking into account the traction load, it is rational to use a complex mathematical model, which uses compatible software systems with the ability of quick and easy data exchange. |
| Databáze: | OpenAIRE |
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