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Short-Term Reliability Evaluation of Transmission System Using Lightning Strike Probability Prediction

Abstract Full-Text HTML Download Download as PDF (Size:323KB) PP. 647-655
DOI: 10.4236/jpee.2014.24087    3,856 Downloads   4,813 Views   Citations
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Jian Wang1*, Qing Yang2, Xiaofu Xiong2, Shijie Weng2


1Yunnan Power Grid Corporation, Kunming, China.
2State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing, China.


The transmission lines are exposed to the atmosphere nature and will be affected by adverse weather such as lightning storm, so that it will affect the reliability of transmission system. This paper studies the fault probability model of transmission line during the lightning storm, and evaluates the short-term reliability of transmission system in the forecasting weather condition. Firstly, build the lightning strike fault probability model of the transmission line based on historical lightning record information, then calculate the lightning strike probability under the forecasting weather conditions, furthermore evaluate the reliability index of transmission system. Utilizing IEEE RTS-79 system to verify the validity of the proposed model and the results show that lightning has great negative influence on the transmission lines and the reliability of transmission system. The reliability evaluation model proposed in this paper can guide the short-term operation and online scheduling for transmission system operators.


Lightning; Transmission Line; Reliability Evaluation; Information Diffusion

Cite this paper

Wang, J. , Yang, Q. , Xiong, X. and Weng, S. (2014) Short-Term Reliability Evaluation of Transmission System Using Lightning Strike Probability Prediction. Journal of Power and Energy Engineering, 2, 647-655. doi: 10.4236/jpee.2014.24087.

Conflicts of Interest

The authors declare no conflicts of interest.


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