Comparing Parameter Estimation Techniques for an Electrical Power Transformer Oil Temperature Prediction Model
نویسنده
چکیده
7KLV SDSHU H[DPLQHV YDULRXV VRXUFHV RI HUURU LQ 0,7·V LPSURYHG WRS RLO WHPSHUDWXUH ULVH RYHU DPELHQW WHPSHUDWXUH PRGHO DQG HVWLPDWLRQ SURFHVV 7KH VRXUFHV RI HUURU DUH WKH FXUUHQW SDUDPHWHU HVWLPDWLRQ WHFKQLTXH TXDQWL]DWLRQ QRLVH DQG SRVW SURFHVVLQJ RI WKH WUDQVIRUPHU GDWD 5HVXOWV IURP WKLV SDSHU ZLOO VKRZ WKDW DQ RXWSXW HUURU SDUDPHWHU HVWLPDWLRQ WHFKQLTXH VKRXOG EH VHOHFWHG WR UHSODFH WKH FXUUHQW OHDVW VTXDUHV HVWLPDWLRQ WHFKQLTXH 7KH RXWSXW HUURU WHFKQLTXH REWDLQHG DFFXUDWH SUHGLFWLRQV RI WUDQVIRUPHU EHKDYLRU UHYHDOHG WKH EHVW HUURU FRYDULDQFH REWDLQHG FRQVLVWHQW SDUDPHWHU HVWLPDWHV DQG SURYLGHG IRU YDOLG DQG VHQVLEOH SDUDPHWHUV 7KLV SDSHU ZLOO DOVR VKRZ WKDW WKH RXWSXW HUURU WHFKQLTXH VKRXOG EH XVHG WR PLQLPL]H HUURUV DWWULEXWHG WR SRVW SURFHVVLQJ GHFLPDWLRQ RI WKH WUDQVIRUPHU GDWD 0RGHOV XVHG LQ WKLV SDSHU DUH YDOLGDWHG XVLQJ GDWD IURP D ODUJH WUDQVIRUPHU LQ VHUYLFH
منابع مشابه
Prediction of Transformer Insulation Life with an Effect of Environmental Variables
The Hot Spot Temperature (HST) value depends on the ambient temperature, the rise in the top oil temperature (TOT) over the ambient temperature, and the rise in the winding HST over the top oil temperature. In this paper a new semi-physical model comprising of the environmental variables for the estimation of HST and loss of insulation life in transformer is proposed. The winding hot-spot tempe...
متن کاملExtraction Kinetics and Physicochemical Studies of Terminalia catappa L Kernel Oil Utilization Potential
Kinetics and selected variables (temperature, particle size and time) for extraction of Terminalia Catappa L Kernel Oil (TCKO) were investigated using solvent extraction. Kinetic models studied were: parabolic diffusion, power law, hyperbolic, Elovich and pseudo-second-order. In ascending order, the best-fitted models at the optimum temperature and oil yield were Elovich’s model, hyperbolic...
متن کاملEstimation of Moisture in Transformer Insulation Using Dielectric Frequency Response Analysis by Heuristic Algorithms
Transformers are one of the most valuable assets of power systems. Maintenance and condition assessment of transformers has become one of the concerns of researchers due to huge number of transformers has been approached to the end of their lifetimes. Transformer’s lifetime depends on the life of its insulation and the insulation’s life is strongly influenced by its moisture attraction as well....
متن کاملMethod for lifetime estimation of power transformer mineral oil
Large amounts of mineral oil are used in electrical equipments as insulation and cooling medium. To avoid damages and cut-off of power electricity supply it is necessary to evaluate the mineral oil condition. Lifetime estimation of mineral oil which is based on accelerated thermal ageing at three temperatures (according to IEC 60216-1/2001) requires a long experimental time. This standardized m...
متن کاملThe Porosity Prediction of One of Iran South Oil Field Carbonate Reservoirs Using Support Vector Regression
Porosity is considered as an important petrophysical parameter in characterizing reservoirs, calculating in-situ oil reserves, and production evaluation. Nowadays, using intelligent techniques has become a popular method for porosity estimation. Support vector machine (SVM) a new intelligent method with a great generalization potential of modeling non-linear relationships has been introduced fo...
متن کامل