Model-Based Power Transformer Protection Using Interactive Multiple Model Algorithm

In a centralized protection and control substation (CPC), all of the measurements of the substation, includes voltages and currents, are available to its centralized high-performance processor. This paper proposes a model-based algorithm for protection of the power transformer in a CPC-based substat...

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Vydáno v:IEEE transactions on power delivery Ročník 40; číslo 1; s. 410 - 422
Hlavní autoři: Jahromi, Saeed Nikbakhsh, Hajipour, Ehsan, Ehsan, Mehdi
Médium: Journal Article
Jazyk:angličtina
Vydáno: New York IEEE 01.02.2025
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Témata:
Algorithms
Circuit faults
Computational modeling
Current measurement
Current transformers
Interactive control
Interactive multiple model (IMM)
Magnetic cores
Mathematical models
Microprocessors
model-based algorithm
Nonlinearity
power transformer protection
Power transformers
Protection
Substations
Transformer cores
Transformers
Voltage measurement
ISSN:0885-8977, 1937-4208
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Shrnutí:In a centralized protection and control substation (CPC), all of the measurements of the substation, includes voltages and currents, are available to its centralized high-performance processor. This paper proposes a model-based algorithm for protection of the power transformer in a CPC-based substation. The main difficulty in the use of conventional model-based algorithms lies in modeling of the nonlinear behavior of the transformer core. To tackle this problem, in this paper, multiple linear models are employed to simulate the nonlinearity of the magnetic core. At each time instance, the dynamic behavior of the transformer will be followed by one of these linear models and, the proposed algorithm switches between these linear models based on the concept of interactive multiple model (IMM) algorithm. This way, not only the accuracy of the proposed algorithm increases but also the computational burden is significantly reduced compared to conventional model-based algorithms. Therefore, the proposed algorithm has better potential to be implemented in real-world microprocessors. Several experimental tests include turn-to-turn (TTF) and turn-to-ground faults (TGFs) have been employed to reveal the effectiveness of the proposed IMM-based protection algorithm.
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ISSN:0885-8977
1937-4208
DOI:10.1109/TPWRD.2024.3502397