TECHNICAL IMPROVEMENT OF AN AUTONOMOUS CHARGE-DISCHARGE ELECTROTECHNICAL COMPLEX OF UNDERWATER DEVICE STORAGE BATTERIES

Abstract

The PURPOSE of the paper is technical improvement of the charge-discharge electrotechnical complex of storage batteries and development of the structural diagram of an autonomous charge-discharge electrotechnical complex (ACDEC) with the monitoring of underwater device battery state. METHODS. To achieve the set goal the methods of mathematical modeling have been used as well as experimental researches on practical installations. RESULTS. A mathematical model of ACDEC is proposed in Matlab Simulink software. ACDEC charge-discharge modes are compared: voltage on the terminal at charge/discharge currents, dependences of voltage under the charge by currents, discharge current, capacitance, electrolyte density in the real time scale on models and a practical installation that have demonstrated good convergence of the results obtained. CONCLUSIONS. The components for the new structure of ACDEC are selected. The use of the diesel engine - a switched inductor-type generator extends the functionality of the introduced ACDEC ensuring its autonomy. The studies have shown that the error of voltage determination did not exceed 2.7%, the error of measured current determination was 2.74% and set current- 1,25% (which meets the specified requirements) when performing real time measuremens under the charge by the currents of 400; 900; 1800 и 3600 А.