A Condition Assessment Model of Oil-immersed Transformers Using Cloud and Matter Element Integrated Method

• Autorzy: Liao R. , Zhang Y. , Zheng H. , Yang L. , Wang K. , Akram S.

Warianty tytułu

PL

Ocena stanu technicznego transformatora olejowego na podstawie modelu szacunkowego – wykorzystanie metod elementów chmury i materii

• Języki publikacji: EN

Abstrakty

EN

High voltage oil-immersed transformers are the most important components in the power system. If there is a potential fault in the transformer it may cause a power failure even a catastrophe. Therefore, it is important to assess the condition of the transformer accurately and to make some relative maintenance to minimize the risk of premature failure. However, condition assessment of transformers can be considered as a multiple-attribute decision-making (MADM) problem which is full of uncertain, fuzzy and randomness information. Aiming at this intricate problem, this paper presents a cloud and matter element integrated approach for assessing the condition of transformers. An assessing index system is established, which includes dissolved gas analysis (DGA), electrical testing and oil testing. An integrated model based on matter element approach and cloud approach is applied to assess the condition of the transformer. Cases study show that the proposed approach is practical and effective. The assessing result can be regarded as a useful suggestion to condition based maintenance of high voltage oil-immersed transformers.

PL

W artykule przedstawiono metodę oceny stanu technicznego transformatora olejowego, opartą na analizie elementów chmury oraz tzw. Matter-Element Analysis. Opracowany został zintegrowany model oraz wskaźnik szacujący stan transformatora, uwzględniający czynniki takie jak: analiza rozpuszczonych gazów (DGA), testy elektryczne i olejowe. Przeprowadzone badania potwierdziły skuteczność metody.

Słowa kluczowe

EN

oil-immersed transformer; condition assessment; MADM

PL

transformator olejowy; szacowanie wartości; MADM

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2013
• Tom: R. 89, nr 4
• Strony: 142--146
• Opis fizyczny: Bibliogr. 23 poz., rys., tab., wykr.

Twórcy

autor

Liao R.

• State Key Laboratory of Power Transmission Equipment & System Security and New Technology, University of Chongqing

autor

Zhang Y.

• State Key Laboratory of Power Transmission Equipment & System Security and New Technology, University of Chongqing

autor

Zheng H.

• Henan Electric Power Research Institute

autor

Yang L.

• State Key Laboratory of Power Transmission Equipment & System Security and New Technology, University of Chongqing

autor

Wang K.

• State Key Laboratory of Power Transmission Equipment & System Security and New Technology, University of Chongqing

autor

Akram S.

• State Key Laboratory of Power Transmission Equipment & System Security and New Technology, University of Chongqing

Bibliografia

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