COMPUTER MODEL OF A CONVERTER FOR THE STORAGE BATTERY CHARGE-DISCHARGE COMPLEX

Abstract

PURPOSE. The paper presents the model of the DC/DC matching (controlling) converter built from the elements of the SimPowerSystems MATLAB/Simulink library, the study of dynamic properties and the methods to control the DC/DC converter. METHODS. The set purpose is achieved through the use of the modeling methods of the mode of step-down/up output voltage of the converter with two power switches, which allows significant improvement of operating performance as compared with buck - boost converters based on a single power switch, as well as with traditional converters with two power switches. RESULTS. A model and design of the DC/DC converter with two power switches is proposed as well as the control method of the DC/DC converter on a computer model. The converter under consideration has the characteristics of a buck - boost transformer. CONCLUSIONS. Having studied the dynamic properties, we found the methods to control a DC/DC converter on a computer model. The development of a matching energy converter and its control principles allowed to stabilize the battery capacity that resulted in improved possibility of maneuvering ships, submersibles (bathyscaphes, unmanned deep-submergence vehicles, etc.).