Özet:

Buck-boost translators are widely used in applications where the input voltage value is variable and this value may be low and high according to the output voltage. The voltage stress on the power elements in these translators and the sizes of the magnetic elements are higher than the translators who are just buck or just boost process. In this study, comparison studies have been carried out in MATLAB/Simulink of a buck-boost translator connected to a cascat used to charge the battery group in the power supply without interruption. The double-key buck-boost translator has reduced the dimensions of the elements of tension stress and the elements that can store energy. In the translator a controller has been used that contains two control cycles, current and voltage. This developed controller is controlled by someone that is in accordance with the state of the battery by the converter of the fixed current or fixed voltage conditions. These conditions can be described as shrinking conditions in fixed voltage values if the batteries are completely empty and if the fixed current and charging flow limits are not exceeded.