Optimal Power Management for Grid Interconnected Residential Solar PV System using Hybrid Cell Bidirectional DC-DC Converter

A renewable power system can be managed in several ways, including sizing, maximizing power output, or balancing multiple energy sources. Power balance is maintained through the utilization of an optimal power management system (OPMS), which accounts for both fluctuations in load demand and power generation from renewable sources. Power electronic converters, control algorithms, and controllers have been developed in conjunction with the solar energy conversion system and battery storage system. The use of power converters has enhanced the reliability and flexibility of solar photovoltaic systems. In this article, a new configuration approach for a bidirectional dc-dc converter is proposed for grid-connected residential PV systems. This approach offers the advantages of a higher voltage conversion ratio in a bidirectional manner and the capability to transfer power smoothly. The operational waveforms under continuous current mode (CCM) and discontinuous current mode (DCM) are investigated. Furthermore, this article provides a detailed description of the various operating modes and their corresponding mathematical relations. Using an experimental setup, the proposed approach has been validated, and the results are presented under varying solar PV generation and load conditions.

کلیدواژه ها:

Solar PV GenerationOptimal Power Management System ، Hybrid cell bidirectional dc-dc converter ، Discontinuous current mode ، buck and boost mode