INFLUENCE OF DIAGNOSTICS FREQUENCY OF BACKUP POWER SUPPLY ON THE RELIABILITY OF ELECTRICITY SUPPLY

Abstract

The article is dedicated to studying the impact of the frequency of diagnosing a backup power source on the reliability of electricity supply and assessing the economic risk of power interruptions in cases of backup or its absence. The study was conducted in the context of developing an automatic diagnosis system for power sources based on internal combustion engines, which has gained additional relevance during times of energy instability caused by the war.
 To justify the necessity of installing a backup power source and its timely diagnosis, the relationship between the probability of power interruption before and after backup on a production line is analyzed. The final product of the line results from a sequence of operations, and any interruption in any of them leads to defective production. Based on input data, the cost of one unit of the product and the time required for its production are estimated, allowing for an hourly income assessment for the production area. The time lost during a power interruption, the economic impact of such an event, and the associated risks are calculated.
 Similarly, the situation is considered, but with backup in place, taking into account the operational readiness of the backup power source. It is assumed that the technical condition of the backup power source may randomly deteriorate and remain in that state until it is actually restored. The probabilities of power interruption and the associated risks under these conditions are calculated. The obtained data is compared, and recommendations are provided for increasing the reliability of backup.
 The results of the research reveal that the installation of a backup power source significantly reduces the risk of power interruption. The inspection period for the diesel generator can be reduced to enhance the reliability of backup, with the maximum level achieved through the use of an automatic diagnosis system for the diesel generator's condition.