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Influence of Electrical Aging on Space Charge Dynamics of Oil-Impregnated Paper Insulation under AC-DC Combined Voltages
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 Title & Authors
Influence of Electrical Aging on Space Charge Dynamics of Oil-Impregnated Paper Insulation under AC-DC Combined Voltages
Wang, Yan; Li, Jian; Wu, Sicheng; Sun, Peng;
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Oil-impregnated paper is a major type of insulation used in oil-filled converter transformers for both traditional and new energy systems. This paper presents and analyzes the results of the experiment conducted on the electrical aging of oil-impregnated paper under AC-DC combined voltages using the pulsed electro-acoustic (PEA) technique. The formation and dynamics of space charge affected the performance of insulation material. The electrical aged oil-paper insulation was obtained through electrical aged experiments under the voltages. Based on the PEA technique, measurements were carried out when the oil-paper insulation system was subjected to different stressing and aging times. The space charge dynamics in the bulk of the oil-paper insulation system with different aging times were measured and analyzed. Characteristic parameters such as the total charge injection amount, the total charges of fast moving and slow moving, and the distortion factor of electric field were calculated and discussed. Results show that the longer electrical aging time, the more charges trapped in the bulk of aging sample. It leads to larger distortion factor of electric field in the bulk of aging samples and accelerate degradation of oil-paper insulation under AC-DC combined voltages.
Converter transformer;Oil-paper insulation;Electrical aging;Space charge;PEA;Electrical field;
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W. X. Lu and B.T. Ooi, "Optimal Acquisition and Aggregation of Offshore Wind Power by Multiterminal Voltage-Source HVDC", IEEE Trans. Power Delivery, vol. 18, No. 1, Jan. 2003, pp. 201-206. crossref(new window)

W.J. Zao, High Voltage Direct Current Transmission Engineering Technology, 2nd ed., China Electric Power Press, Peking, 2011, p.308-309. (in Chinese)

CIGRE Joint Task Force B4.04/A2-1, "Analysis of HVDC Thyristor Converter Transformer Performance," in Proceedings of Council on Large Electric Systems, Canada, Feb. 2004.

G. Chen, "Space Charge in Solid Dielectrics," in Proceedings of the 14th International Symposium High Voltage Engineering, Beijing, China, Aug. 2005.

W. Choo, G. Chen and S. G. Swingler, "Electric Field in Polymeric Cable Due to Space Charge Accumulation under DC and Temperature Gradient," IEEE Trans. Dielectr. Electr. Insul., vol. 18, no. 2, pp. 596-606, April 2011. crossref(new window)

Boggs S. "A rational consideration of space charge," IEEE Elect. Insul. Mag., vol. 20, no. 4, pp. 22-27, July-Aug. 2004. crossref(new window)

Y. Wang, J. Li, Y. Y. Wang, S. Grzybowski, "Electrical breakdown properties of oil-paper insulation under AC-DC combined voltages," in Proceedings of IEEE Conf. Power Modulator and High Voltage, Atlanta, America, May 2010.

G. Mazzanti, G. C. Montanari and J. M. Alison, "A space-charge based method for the estimation of apparent mobility and trap depth as markers for insulation degradation-theoretical basis and experimental validation," IEEE Trans. Dielectr. Electr. Insul., vol. 10, no.2, pp. 187-197, April 2003. crossref(new window)

G. Chen, Y. Tanaka, T. Takada and L. Zhong, "Effect of polyethylene interface on space charge formation," IEEE Trans. Dielectr. Electr. Insul., vol.11, no.1, pp. 113-121, Feb. 2004. crossref(new window)

Li Y, Murata K and Tanaka Y,"Space charge distribution measurement in lossy dielectric materials by pulsed electroacoustic method," In Proceedings of the 4th International Conference on Properties and Applications of Dielectric Materials, Brisbane , Australia, July 1994.

Tanaka A., Maeda, M.,Takada Tatsuo, "Observation of charge behavior in organic photoconductor using pressure wave propagation method," IEEE Transactions on Electrical Insulation, vol. 27, No. 3, pp. 440-444, July 1992. crossref(new window)

Tanaka R, Sunaga H, Tamura N. "The effect of accumulated charge on depth dose profile in poly (Methylmethacrylate) irradiated with fast electron beam," Nucl. Sci., vol. 26, no.4, pp. 4670-4675, Aug. 1979. crossref(new window)

Tanaka T, Greenwood A. "Effects of charge injection and extraction on tree initiation in polyethylene," Power apparatus and systems. IEEE Trans. Power Apparatus System, vol. PAS-97, no.5, pp. 1749-1759, Sept. 1978. crossref(new window)

Montanari G. C., "Dielectric material properties investigated through space charge measurement," IEEE Trans. Dielectr. Electr. Insul., vol.11, no. 1, pp. 56-64, Feb. 2004. crossref(new window)

Mazzanti G, Montanari G C. "Quantities extracted from space-charge measurements as markers for insulation aging," IEEE Trans. Dielectr. Electr. Insul., vol. 10, no.2, pp.198-203, April 2003. crossref(new window)

Dissado L., Mazzanti G., Montanari G. C., "A new thermo-electrical life model based on space-charge trapping," In Proceedings of IEEE International Symposium on Electrical Insulation 1996 Conference. Quebec, Canada, June 1996.

Jian Hao, George Chen, Ruijin Liao, Lijun Yang and Chao Tang, "Influence of Moisture on Space Charge Dynamics in Multilayer Oil-paper Insulation," IEEE Trans. Dielectr. Electr. Insul., vol. 19, no.4, pp. 1456-1464, Mar. 2012. crossref(new window)

Chao Tang, RuiJin Liao, George Chen, LiJun Yang, "Research on the feature extraction of DC space charge behavior of oil-paper insulation," SCIENCE CHINA-Technological Sciences, vol. 54 No.5, pp. 1315-1324, May 2011. crossref(new window)

Chao Tang, George Chen, Ming Fu, RuiJin Liao, "Space charge behavior in multi-layer oil-paper insulation under different DC voltages and temperatures," IEEE Trans. Dielectr. Electr. Insul., vol. 17 No.3, pp. 775-784, Aug. 2010.

D. Malec, "Contribution to Relationship between Space Charge Injection and Dielectric Breakdown of Low Density Polyethylene under a Divergent Field," IEEE Trans. Dielectr. Electr. Insul., vol.14, No.2, pp. 502-507, April 2007. crossref(new window)

Mahmoud Abou Dakka, Alexander Bulinski and Soli Bamji, "Space Charge Development and Breakdown in XLPE under DC Field," IEEE Trans. Dielectr. Electr. Insul., vol.11, No.1, pp. 41-49, Feb. 2004. crossref(new window)

IEC Publication 60243-1, Electrical Strength of Insulating Materials - Test Methods - Part 1: Tests at Power Frequencies, 1998

G. Chen, M. Fu, X. Z. Liu and L. S. Zhong, "Ac aging and space-charge characteristics in low-density polyethylene polymeric insulation," Journal of Applied Physics, vol. 97, pp. 1-7, April 2005. crossref(new window)

G. Chen, Y. Tanaka, T. Takada and L. Zhong, "Effect of polyethylene interface on space charge formation", IEEE Trans. Dielectr. Electr. Insul., vol. 11, pp.113-121, Feb. 2004. crossref(new window)

Xu Zhi qiang. Space charge measurement and analysis in low density polyethylene film [D] Southampton: University of Southampton, 2009.