Transient Current Distribution and Force Analysis of Three Phase Enclosure Type GIB Based on Field-Circuit Coupling FEM Method
Keywords:
Current distribution, electromagnetic force, field-circuit coupling, finite element method (FEM), GIB, plug-in connector, short circuitAbstract
On the purpose of optimal design and online monitoring of three phase enclosure gas insulated bus (GIB), a 3-D circuit-field coupling FEM model has been developed. The current constriction effects in plug-in connectors are simulated by modeling contact bridges between contact surfaces and the influence of conductor gravity on contact resistance has been taken into account. The distributions of current which is constrained by external circuit are obtained from fieldcircuit coupling calculation and electromagnetic force, which is derived from electromagnetic field calculation, is used as load inputs in mechanical field analysis. The validity of calculation model is demonstrated by comparing with vibration experiments. The dynamic current distribution and electromagnetic force behaviors of three phase enclosure GIB under steady state and different short circuit conditions have been analyzed using the calculation model. Analysis results show that the uneven heating of contact fingers due to current distributions under steady state and contact fingers with smaller contact forces are seriously ablated by large short currents under short circuit conditions, and are the main contact degradation mechanism of plug-in connector. Conductor electromagnetic forces under single phase short circuit condition are larger than those of two phase and three phase short circuit conditions and the electromagnetic force peak moments under different fault conditions are not the same.
Downloads
References
A. H. Cookson and C. S. Cleale, “Three-conductor compressed gas cable optimization,” EPRI Project 7840 Final Report, Feb. 1979.
Y. Mukaiyama, I. Takagi, K. Izumi, T. Sekiguch, A. Kobayashi, and T. Sumikawa. “Investigation on abnormal phenomena of contacts using disconnecting switch and detachable bus in 300kV GIS,” IEEE Trans. Power Delivery, vol. 5, no. 1, pp. 189-195, 1990.
A. E. Emanuel, H. C. Doepken, and P. C. Bolin, “Design and test of a sliding plug-in conductor connector for compressed gas-insulated cables,” IEEE Trans. Power Apparatus and Systems, vol. 95, no. 2, pp. 570-579, 1976.
A. G. Kladas, M. P. Papadopoulos, and J. A. Tegopoulos, “Leakage flux and force calculation on power transformer windings under shortcircuit: 2D and 3D models based on the theory of images and the finite element method compared to measurements,” IEEE Trans. Magnetics, vol. 36, no. 4, pp. 3487-3490, 1994.
H. Hama, T. Marutani, K. Takatsuka, T. Nitta, and T. Tanabe, “Characteristics of short circuit electromagnetic forces in three phase enclosure type gas insulated bus,” IEEE Trans. Power Delivery, vol. PWRD-2, no. 2, pp. 367-373, 1987.
S. Tominaga, H. Mukae, S. Matsuda, N. Okutsu, and Y. Takahashi, “Dynamic behavior of metal enclosures for gas insulated substations during ground faults and their immediate location by mechanical means,” IEEE Trans. Power Apparatus and Systems, vol. PAS-98, no. 4, pp. 1283-1290, 1979.
Y. Kanno, T. Amemiya, N. Takahashi, and N. Kobayahi, “The short circuit electromagnetic force of the three-phase encapsulated gas insulated busbar,” IEEE Trans. Power Apparatus and Systems, vol. PAS-103, no. 6, pp. 1386-1393, 1984.
H-K. Kim, J-K. Jung, K-Y. Park, C-H. Im, and HK. Jung, “Efficient technique for 3-D finite element analysis of skin effect in current-carrying conductors,” IEEE Trans. Magnetics, vol. 40, no. 2, pp. 1326-1329, 2004.
T. Takeuchi, T. Yoshizawa, and Y. Kuse, “3-D nonlinear transient electromagnetic analysis of short circuit electromagnetic forces in a threephase enclosure-type gas insulated bus,” IEEE Trans. Magnetics, vol. 36, no. 4, pp. 1754-1757, 2000.
D. Labirdis and V. Hatziathanassiou, “Finite element computation of field, forces and inductances in underground SF6 insulated cables using a coupled magneto-thermal formulation,” IEEE Trans. Magnetics, vol. 30, no. 4, pp. 1407-1415, 1994.
S. Ito, Y. Takato, Y. Kawase, and T. Ota, “Numerical analysis of electromagnetic forces in low voltage ac circuit breakers using 3-D finite element method taking into account eddy currents,” IEEE Trans. Magnetics, vol. 34, no. 5, pp. 2597-2600, 1998.
K. Yoshihiro, M. Hiroyuki, and I. Shokichi, “3-D finite element analysis of electro-dynamic repulsion forces in stationary electric contacts taking into account asymmetric shape,” IEEE Trans. Magnetics, vol. 33, no. 2, pp. 1994-1999, 1997.
G. Bedrosian, “A new method for coupling finite element field solutions with external circuits and kinematics,” IEEE Trans. Magnetics, vol. 29, no. 2, pp. 1664-1668, 1993.
M. R. Shah, G. Bedrosian, and J. Joseph, “Steadystate loss and short-circuit force analysis of a three-phase bus using a coupled finite element + circuit approach,” IEEE Trans. Energy Conversion, vol. 14, no. 4, pp. 1485-1489, 1999.
J. Weiss and V. K. Jarg, “Steady state eddy current analysis in multiply-excited magnetic systems with arbitrary terminal conditions,” IEEE Trans. Magnetics, vol. 24, no. 6, pp. 2676-2678, 1988.
G. B. Kumbhar and S. V. Kulkarni, “Analysis of short-circuit performance of split-winding transformer using coupled field-circuit approach,” IEEE Trans. Power Delivery, vol. 22, no. 2, pp. 936-943, 2007.
M. van der Giet, E. Lange, D. A. P. Corrêa, I. E. Chabu, S. I. Nabeta, and K. Hameyer, “Acoustic simulation of a special switched reluctance drive by means of field-circuit coupling and multi-physics simulation,” IEEE Trans. Industrial Electronics, vol. 57, no. 9, pp. 2946-2953, 2010.
X. Guan and N. Shu, “Electromagnetic field and force analysis of three-phase enclosure type GIS bus capsule,” Applied Computational Electromagnetics Society Journal, vol. 29, no. 8, pp. 582-589, 2014.
R. Holm, Electric Contacts: Theory and Applications, Springer, New York, 1979.
