Design and Implementation of a Novel Zeta Converter for DC Bus Voltage Regulation

This paper proposes a Novel Zeta Converter (NZC) with high voltage gain to regulate the voltage in the DC bus. The
proposed topology is developed with the inclusion of additional capacitor in the conventional zeta converter to improve the voltage gain. This structure reduces the number of switching devices and losses when compared with the conventional DC-DC high gain converters with higher efficiency. The converter is demonstrated in conjunction with a photovoltaic (PV) system to maximise the output voltage of the PV system and eminent P & O algorithm based Maximum Power Point Tracking (MPPT) has been employed. The proposed system yields a constant output voltage for 13% of load variation. A comparison is made between the proposed system with conventional topology and it is inferred that the output voltage can be made constant with minimum number of components and reduced losses. A simulation is carried out in MATLAB/Simulink and validated in real time with dsPIC microcontroller. The simulation results are in line with the hardware result.