Wind Regime Change over the Russian Territory and the Accident Rate of Overhead Power Lines

Actual and design wind loads for overhead transmission lines in the Central European part of Russia

“…II, the reverse situation is found, namely, there is an increase in annual maximum wind speeds for each subsequent time interval, and this is especially noticeable for the phenomena repeatability 1 time in 25 and 50 years. These conclusions are consistent with the distribution of previously obtained in this work values of maximum wind speeds for 3-hour observations, and also confirm one of the main conclusions of our studies [7,8] about an increase in the range (imbalance) of wind speeds for territories with high wind pressure. Table 2 shows the results of a comparative assessment regarding retrospective values of wind loads for OTL for PJSC "Rosseti Center and the Volga region", in accordance with the retrospective data defined as weather stations observations and design values calculated according to the maps of climatic zoning [16] for a probability of not exceeding 96% (repeatability 1 once in 25 years).…”

“…Impacts of the climatic factors and their changes on the reliability, stability and operability of electric power systems are studied for various countries: Europe [1,2], the USA [3,4], China [5,6], Russia [7,8,9]. The high relevance of this topic is linked to increased requirements towards energy security, including challenges linked with decentralization of infrastructure facilities.…”