A Multi-parameter Comprehensive Analytical Method for Online Assessing Power Transformer Condition

• Autorzy: He Z. , Liu Y. , Chen J. , Bai W. , Sheng G. , Jiang X.

Warianty tytułu

PL

Wszechstronna, wieloparametrowa metoda analizy do dynamicznego szacowania warunków pracy transformatora

• Języki publikacji: EN

Abstrakty

EN

The effective assessment on the operation condition of power transformer is an important means to conduct the condition maintenance for transformer and to improve the reliability of power system. Based on the amount of information of all kinds of online monitoring conditions obtained from the transformer intelligent components, the assessment model for comprehensive condition of transformer is established in this study through the introduction of extension theory. First, with respect to the disadvantage that there is considerable subjectivity in constructing judgment matrix by the traditional analytic hierarchy process (AHP), a new method is adopted to construct the judgment matrix. The orthogonal experimental design method, finite element simulation as well as AHP are adopted to determine the weighting of condition information index with scientific and objective attitude; next, the framework for comprehensive assessment of transformer condition is established with the extension-based comprehensive assessment method to achieve the qualitative and quantitative assessment on the transformer condition. The method is proved to be correct and valid through analysis of examples.

PL

W artykule przedstawiono wyniki badań dotyczących opracowania modelu szacowania warunków pracy transformatora. W pierwszym kroku stworzono metodę budowy macierzy orzeczeń, z uwzględnieniem pewnych subiektywności tradycyjnej metody tworzenia tej macierzy (ang. Analytic Hierarchy Process). Do oszacowania wagi wskaźnika informacji o warunkach pracy, wykorzystano metodę eksperymentalną, symulację elementów skończonych oraz AHP. Wykonane badania wykazały poprawność działania metody.

Słowa kluczowe

EN

power transformer; condition assessment; online monitoring

PL

transformator energetyczny; transformator; warunki pracy transformatorów; AHP; metoda elementów skończonych

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2013
• Tom: R. 89, nr 1a
• Strony: 219--222
• Opis fizyczny: Bibliogr. 10 poz., schem., tab.

Twórcy

autor

He Z.

• Shanghai University of Engineering Science

autor

Liu Y.

• Shanghai JiaoTong University

autor

Chen J.

• Shandong Heze Power Supply Company

autor

Bai W.

• Shandong Heze Power Supply Company

autor

Sheng G.

• Shanghai JiaoTong University

autor

Jiang X.

• Shanghai JiaoTong University

Bibliografia

• [1] SUN Bo, XU Bingyin, SUN Tongjing, et al. New fault location method based on approximate entropy of transient zero-module current in non-solidly earthed Liu Youwei, Li Guangfan, Gao Keli et al.. Formulation of the Principle Framework about Guideline of the Electrical Equipment Maintenance [J].Power System Technology, 2003, 27(6): 64- 67.
• [2] Liao Ruijin, Wang Qian, Luo Sijia, et al. An Assessment Model of Power Transformer Operation Condition Based on Fuzzy Synthetic Evaluation [J]. Automation of Electric Power System, 2008, 32(3): 70-74
• [3] Tang W H, Spurgeon K, Wu Q H, et al. An evidential reasoning approach to transformer condition assessments [J]. IEEE Transactions on Power Delivery,2004,19(4): 1696～1703
• [4] Xiong Hao, Sun Caixin et al. A Grey Hierarchical Evaluation Model for Operation Condition of Power Transformers. Automation of Electric Power System, 2007, 31(7): 55-60
• [5] Zhu Chengzhi, Guo Chuangxin et al. Power Transformer Condition Assessment Research Based on Improved Evidential Reasoning. High Voltage Engineering 2008,34(11): 2332 ～ 2337
• [6] Xie Hongling, Lv Fangcheng. Transformer condition evaluation method based on information fusion. Journal of North China Electric Power University, 2006, 33(2): 8～11
• [7] Qing Xie,Yangqing Li, Large power transformer condition evaluation based on multilevel extension theory[C], DRPT 2008 6～9 April 2008,Nanjing,China
• [8] Wu Peng. Study on Condition Maintenance for Power Transformer Based on Extension Theory, [D]. North China Electric Power University, 2008
• [9] Xiong Hao, Sun Caixin, Du Peng et al. A Comprehensive Assessment on the Power Transformer Condition Based on Matter-Element Theory. Journal of Chongqing University (Natural Science Edition), 2006, 29(10):24～28.
• [10] Zheng Ruirui, Zhao Jiyin, Wu Baochun, et al. Method for Insulation Condition Classification Evaluation of Power Transformer Based on Weight Coefficient Grey Target Theory. Transactions of China Electrotechnical Society,2008, 23(8): 60 ～66