Dc-dc Converter Control in Mvac Grid-tied Pv System

Hamzeh Alzoubi & Murtaza Farsadi, Istanbul Aydin University ,Electrical and Electronics Engineering Department ,Turkey

ABSTRACT

In high solar energy areas, photovoltaic systems provide a low-cost source of electricity. PV systems are nonpolluting and require little maintenance. Solar energy fluctuates with irradiance and temperature, and partial shadowing in the cells is one factor that lowers power production. Various algorithms will be used in the future to extract the most power from the PV system, and DC-DC converters will be used to control the supply. The microgrid concept is developing as a viable alternative for integrating renewable energy sources and loads. DC systems are increasingly being used in commercial, residential, and industrial applications. DC microgrids are superior in terms of dependability, control, and efficiency. In the future, direct current topologies will be in high demand in electrical distribution networks. This paper describes numerous DC-DC converter circuit topologies used in solar photovoltaic (PV) applications. This study presents three types of DC-DC converters that may be combined with solar PV systems in diverse applications: buck, boost, and buck-boost converters. This article also discusses the usage of a DC-DC converter in a solar PV system for maximum power point tracking (MPPT) and how all of the aforementioned principles may be employed in a DC microgrid for future DC applications.

KEYWORDS

DC-DC Converter, MVAC Grid-Tied, photovoltaic systems, microgrid.