Startseite Study on the Impacts of Uncertain Meteorological Parameters on Line Transmission Capacity
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Study on the Impacts of Uncertain Meteorological Parameters on Line Transmission Capacity

  • Yang Mo , Yanling Wang EMAIL logo , Likai Liang , Heji Li , Qiang Zhang und Zhiqiang Niu
Veröffentlicht/Copyright: 21. Juli 2018

Abstract

Traditionally, transmission lines have been operated based on static thermal rating, which is determined by fixed and conservative meteorological data. It causes underutilization of potential transmission capacity. To overcome this limitation, this paper presents seasonal time scale, which can provide flexible ratings. Seasonal meteorological parameters are uncertain. The uncertainty can directly impact the conductor temperature, and eventually impact transmission capacity of the lines. In order to account for the uncertainty, this paper presents an uncertainty analysis model. This model consists of three parts: establishment of probability distribution models, Monte Carlo simulation, and operation risk assessment. In the case study, the actual meteorological data for 7years in the Weihai is utilized, and is divided into four subsets by spring, summer, autumn and winter. The uncertainty analysis model is tested on an actual 47km Wei-Kun line and a 4-bus power system. Results show that potential transmission capacity can be extracted if seasonal meteorological parameters are taken into account.

Funding statement: This paper is supported by the National Natural Science Foundation of China (No. 51607107, 51641702), and the Science & Technology Development Project of Shandong Province (No. ZR2015ZX045).

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Received: 2018-04-16
Revised: 2018-06-12
Accepted: 2018-06-12
Published Online: 2018-07-21

© 2018 Walter de Gruyter GmbH, Berlin/Boston

Heruntergeladen am 10.9.2025 von https://www.degruyterbrill.com/document/doi/10.1515/ijeeps-2018-0131/html
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