An Optimal Heat Line Simulation Method to Calculate the Steady-Stage Temperature and Ampacity of Buried Cables

• Autorzy: Liang Y. , Zhao J. , Du Y. , Zhang J. J.

Warianty tytułu

PL

Symulacja nagrzewania kabla podziemnego w celu określenia rozkładu temperatury i przeciążalności prądowej

• Języki publikacji: EN

Abstrakty

EN

A numerical study based on an optimal heat line simulation method is proposed to calculate the steady-state temperature distribution of underground power cables surrounded by sand backfill and soil. Virtual heat lines are used to replace the heat in the cable conductors in this method. The heat and location of these virtual heat lines are determined by solving Laplace’s and Poisson’s equations with boundary conditions satisfied based on the genetic algorithm. An experiment was carried out to verify the validity of the proposed method. Through comparison with the experimental results, the proposed model is proved to be effective to calculate the temperature distribution of buried power cables. Furthermore, the ampacity of buried power cables is calculated by iteration method.

PL

W artykule zaprezentowano metodę symulacji nagrzewania podziemnego kabla. Wykonano obliczenia wykorzystując równania Laplace i Poissona przy warunkach granicznych bazujących na algorytmie genetycznym. Określono też przeciążalność prądową kabla.

Słowa kluczowe

EN

optimal heat line simulation method; genetic algorithm; buried power cables; steady-state temperature; ampacity

PL

kabel podziemny; nagrzewanie; przeciążalność prądowa

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2012
• Tom: R. 88, nr 3b
• Strony: 156--160
• Opis fizyczny: Bibliogr. 14 poz., schem., tab., wykr

Twórcy

autor

Liang Y.

autor

Zhao J.

autor

Du Y.

autor

Zhang J. J.

• 70 Yuhuadonglu, Shijiazhuang, Hebei, China,

Bibliografia

• [1]International Standard IEC 60287-1-1, Electric Cables - Calculation of the current rating- Part 1-1: Current rating equations (100% load factor) and calculation of losses - General.
• [2]International Standard IEC 60287 -2-1, Electric Cables - Calculation of the current rating - Part 2-1: Thermal Resistance - Calculation of the thermal resistance.
• [3]H.Brakelmann, J.Stammen, Thermal Analysis of Submarine Cable Routes: LSM or FEM?, First International Power and Energy Conference PECon, Putrajaya, Malaysia, 2006
• [4]George J. Anders, Rating of Electric Power Cables, IEEE PRESS, New York, 1997
• [5]R.L.Vollaro, L.Fontana, A.Vallati, Thermal analysis of underground electrical power cables buried in nonhomogeneous soils, Applied Thermal Engineering 3(2011) 772-778
• [6]C.Garrido, A.F.Otero, J.Cidras, Theoretical Model to Calculate Steady-State and Transient Ampacity and Temperature in Buried Cables, IEEE transactions on power delivery 3(2003) 667-677
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• [9]P.Vaucheret, R.A.Hartlein, W.Z.Black, Ampacity Derating Factors for Cables in Short Segment of Conduit, IEEE Transactions on Power Delivery(2005) 1-6
• [10]Anders, G.J., Bedard, N., Chaaban, New Approach to Ampacity Evaluation of Cables in Ducts Using Finite Element Technique, IEEE Transactions on Power Delivery (1987) 969-975
• [11]N.H.Malik, A Review of the Charge Simulation Method and its Application, IEEE Transactions on Electrical Insulation, 21(1989) 3-20
• [12]X.M.Liu, Y.D Cao, E.Z. Wang, Numerical Simulation of Electric Field with Open Boundary Using Intelligent Optimum Charge Simulation Method, IEEE Transactions on Magnetics 4(2006)
• [13]A.G, Numerical Investigation of Direct and Indirect Integral Equations for Solving the Heat Conduction Probelm, Computer Methods in Applied Mechanics and Engineering 2(1985):203-220
• [14]G.D Zhou, Y.F Shen, A New Method to Calculate the Temperature Field-Virtual Heat Source, Mechanics and Practice 5(1993) 49-53