Multilevel converters have been under research and development for more than three
decades and have found successful industrial application. However, this is still a technology …

The energy problem is one of the most important and serious problems that humanity is
faced with it and this is while the fossil fuels are running out, so finding new sources of …

The main design objective of photovoltaic (PV) systems has been, for a long time, to extract
the maximum power from the PV array and inject it into the ac grid. Therefore, the maximum …

A photovoltaic (PV) array has non-linear I–V (current–voltage) characteristics and its output
power varies with solar insolation level and ambient temperature. There exists only one …

This paper presents an energy-balance control strategy for a cascaded single-phase grid-
connected H-bridge multilevel inverter linking n independent photovoltaic (PV) arrays to the …

Fossil fuels and other conventional energy sources used to generate electricity are finite.
Therefore, alternative energy sources should be pursued to meet present and future energy …

Characterized by low leakage current and low voltage stress of the power device, a neutral
point clamped three-level inverter (NPCTLI) is suitable for a transformerless photovoltaic …

This paper presents a single-phase transformerless grid-connected photovoltaic converter
based on two cascaded full bridges with different dc-link voltages. The converter can …

Large scale grid connected photovoltaic (PV) energy conversion systems have reached the
megawatt level. This imposes new challenges on existing grid interface converter topologies …

The application of photovoltaic (PV) as a source of electrical energy in the distributed
generation (DG) systems are gaining more attention with the advances in power electronics …