Modification of the implementation of the underexcitation limiter within the generator excitation system of Unit B1 at TPP "Nikola Tesla B"
This paper investigates a grid outage event at TPP "Nikola Tesla B" Unit B1 and analyzes the excitation system's response. Based on this analysis, modifications were made to the underexcitation limiter within the excitation system. The paper details the structure of the multi-segment...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Electrical Engineering Institute Nikola Tesla
2024-01-01
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| Series: | Zbornik Radova: Elektrotehnički Institut "Nikola Tesla" |
| Subjects: | |
| Online Access: | https://scindeks-clanci.ceon.rs/data/pdf/0350-8528/2024/0350-85282434037K.pdf |
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| Summary: | This paper investigates a grid outage event at TPP "Nikola Tesla B" Unit B1 and analyzes the excitation system's response. Based on this analysis, modifications were made to the underexcitation limiter within the excitation system. The paper details the structure of the multi-segment straight-line limiter and its implementation methodology. The limiter's implementation was refined using recordings of the outage event and a detailed analysis of the excitation system's behavior. Additionally, the paper discusses the filtering of input measurements (stator voltage and generator active power) and the variable gain mechanism of the limiter. Finally, the paper presents the results of testing the modified limiter during grid operation, demonstrating stable behavior with damped oscillations. |
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| ISSN: | 0350-8528 2406-1212 |