Abstract
The article discusses the structure of autonomous electrical systems with an electric drive and an electric energy generation system. An approach is described for assessing the overall efficiency of technological cycle equipment with specification of parameters that must be considered when calculating it. The necessity of taking into account energy efficiency and operability indicators of autonomous electric complexes is substantiated. The effectiveness of the use of autonomous systems decreases throughout the entire life cycle due to wear and tear. As the operability of electromechanical equipment, an indicator of the residual resource is selected. The calculation of the residual resource, with the definition of its boundary values and recommendations for further use. Nominal energy efficiency parameters of autonomous electrotechnical complexes with electric drive deteriorate during operation, which also needs to be taken into account. To simplify the assessment of the operational state of electromechanical equipment, a state diagram is presented that allows you to track the dynamics of degradation of individual nodes. Taking into account the described indicators and means of control, it is possible to increase the efficiency of using autonomous complexes.
Highlights
At the enterprises of the oil and gas industry, technological complexes with multi-motor alternating current electric drives are being used, the electricity of which is supplied from autonomous sources of electricity
Nominal energy efficiency parameters of autonomous electrotechnical complexes with electric drive deteriorate during operation, which needs to be taken into account
The proposed approach to solving problems of increasing the accuracy and quality of the assessment of the state and residual life of electromechanical equipment is based on the analysis of data of systems for recording the quality of electrical energy, operating environment, vibration and electrical characteristics with using an artificial neural network [13-15]
Summary
At the enterprises of the oil and gas industry, technological complexes with multi-motor alternating current electric drives are being used, the electricity of which is supplied from autonomous sources of electricity. The need for autonomous power supply may be due to various factors. First of all, it is suitable for objects located in remote areas. The source of electrical energy is a set of N generators Gk (k= 1,N) with drive motors DMk (k=1,N), their implementation may be in the form of diesel generators, gas turbine units and, in some cases, wind generators. For the second group of consumers, industrial frequency electricity is needed, so they are connected directly to a common AC bus [1, 2, 6,7,8]
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