MODELING OF RELIABILITY OF 6…10 KV OVERHEAD LINES FOR POWER SUPPLY OF OIL AND GAS FACILITIES

Abstract

The article considers the issues of assessing the impact of meteorological factors on the functioning of the most damaged overhead lines (OL) in the region under consideration, the modeling of which, taking into account the weather model, gives more realistic indicators, in the form of average residence time of the process in states, operating time for failure, recovery time, the number of transitions to an inoperable state. It is shown that from the point of view of the causes of damage to overhead lines leading to failure, the climatic impact is crucial: dust storms, pollution, sharp temperature fluctuations. The research methodology was based on the classical apparatus of mathematical statistics and reliability theory. To develop models of reliability of the main elements of power supply systems (PSS) - overhead lines (OL), the theory of Markov random processes and modeling of processes and systems was used. In terms of practical value, models have been developed that take into account environmental conditions and the main indicators of PSS reliability have been determined for use in design and operational practice: average time to failure, average recovery time and average number of transitions to an inoperable state. The use of Markov models describing PSS at the level of random processes makes it possible to apply in practice methods for assessing and predicting the reliability of PSS operating under the influence of the external environment.