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Closed Loop Control of an Isolated semi-SEPIC DC-DC Converter using PID Controller

This paper presents the closed loop control scheme of
the semi-sepic coupled inductor based DC DC converter using a
PID controller, enhancing the overall performance of the system.
The PID controller usually enhances the transient and steady
state performance of the system. The objective here is to maintain
the output voltage of the DC/DC converter constant irrespective of
the variations in the input/source voltage, components and load
current. The implementation of the proposed scheme is done using
the blocks of MATLAB Simulink and the model is tested with the
controlled voltage source by giving some disturbance at the input
where the output is well regulated irrespective of the changes in
the input/source voltage. Comparative analysis on the
performance of the converter with and without PID controller is
carried out using MATLAB Simulink. The output voltage of the
converter with PID controller is regulated under disturbed input
voltages.