MODELING OF THE TECHNICAL CONDITION OF AN EQUIPMENT OF POWER SUPPLY SYSTEMS OF MONO CONSUMERS TAKING INTO AC- COUNT CIRCUIT RELIABILITY
Keywords:
reliability, reliability indicators, power supply systems, recoverable elements, probability of trouble-free operation, block diagram, technical condition index, monoconsumerAbstract
The reliability of power supply systems is assessed at the planning, design and con- struction stages. The calculation of circuit reliability is carried out on the basis of statistical information about failures of electrical equipment. During operation, the technical condition of the equipment changes, and the reliability of the circuit decreases. The purpose of the article is to study the influence of the current technical condition of the elements on the circuit reliability of the power supply system. Elements of probability theory are applied to calculate the reliability of power supply schemes. Statistics on overhead line failures for the considered power supply schemes over 10 years of operation were used. To obtain information about the technical condition of power supply systems, the method of calculating the technical condition index is applied. Using statistical information about failures, the resulting reliability indicators and the probability of failure-free operation for each power supply scheme are calculated. A simulation model has been developed and implemented to simulate the current technical condition of electrical equipment. The implementation of the model is represented by a software package. The values of the probabilities of trouble-free operation are obtained taking into account the index of technical condition. The value of the probability of trouble-free operation of the considered power supply systems, taking into account the current technical condition of their elements, is reduced. The obtained estimates show the need to monitor the current technical condition of electrical equipment and regularly recalculate the values of reliability indicators for power supply schemes.
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