ВИЯВЛЕННЯ В ОНЛАЙН РЕЖИМІ НАСИЧЕННЯ МАГНІТОПРОВОДІВ ВИСОКОВОЛЬТНИХ ТРАНСФОРМАТОРІВ СТРУМУ ТРИФАЗНИХ ПЕРВИННИХ ВИМІРЮВАЛЬНИХ КАНАЛІВ ЕЛЕКТРИЧНИХ ПІДСТАНЦІЙ У ПЕРЕХІДНИХ РЕЖИМАХ ЕНЕРГОСИСТЕМ
The saturation index, its threshold value and characteristics of known current transformer (CT) saturation detection methods are determined. A description of the mathematical model (MM) of the three-phase primary measuring channel (PMC) of current, which consists of a model of the group of CT, each...
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| Date: | 2019 |
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| Main Authors: | , |
| Format: | Article |
| Language: | Ukrainian |
| Published: |
Інститут електродинаміки НАН України, Київ
2019
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| Subjects: | |
| Online Access: | https://techned.org.ua/index.php/techned/article/view/548 |
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| Journal Title: | Technical Electrodynamics |
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Technical Electrodynamics| Summary: | The saturation index, its threshold value and characteristics of known current transformer (CT) saturation detection methods are determined. A description of the mathematical model (MM) of the three-phase primary measuring channel (PMC) of current, which consists of a model of the group of CT, each of which is represented by a MM based on the Jiles-Atherton theory of ferromagnetic hysteresis for digital analysis and signals processing is depicted. Using the developed MM of the three-phase PMC and the software environment, a number of known methods of saturation detection have been implemented, and their main features, characteristics, advantages and disadvantages have been established. The noise-immune and precise method of online CT saturation detection, which are the part of the three-phase PMC under the fault condition of power system has been developed. Characteristics of the method are confirmed experimentally. References 31, figures 5, table 1. |
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