Half Bridge Bidirectional DC-DC Converter

Zulkifli, Mohamad Zaki (2018) Half Bridge Bidirectional DC-DC Converter. Project Report. UTeM, Melaka, Malaysia. (Submitted)

Text (24 Pages) Half Bridge Bidirectional DC-DC Converter.pdf Download (468kB)

Abstract

Electrical applications that uses renewable energy needs a power converter in order to converts or limits the power from the renewable source to the load. Existing DC-DC Converter is capable of doing that but for a renewable energy like PV panel can only provide power when there is high intensity of sunlight. PV panel power will faded if the sky become cloudy or rain. In order to provide supply to the load without any interruption, Half-bridge Bidirectional DC-DC Converter (BDC) is introduced. The power intermittency issue of PV panel can be overcome with the aid of secondary supply. The control between the primary and secondary supply is done by the BDC. Half-bridge topology is selected for the BDC since it has simple yet reliable design. Half-bridge BDC topology will have a high voltage (HV) and low voltage (LV) side. PV panel at the HV side meanwhile, battery is at the LV side. BDC will either operate as a buck or boost converter according to the mode of operation require. The direction of the bidirectional current in the BDC will tell the mode of the BDC. If the bidirectional current is flowing from HV side to the load, BDC is in buck mode to reduce the voltage input to the level that similar to the load voltage. If the bidirectional current is flowing from the LV side to the load, BDC is in boost mode to step up the voltage up to the required level. PV panel voltage value is 18

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