Mohammadreza Mohammadiya Asiabar - Master's degree, Islamic Azad University, Karaj Branch, Karaj, Iran

This paper focuses on the latest development of inverters for photovoltaic AC-Modules. The power range for these inverters is usually within ۹۰ Watt to ۵۰۰ Watt, which covers the most commercial photovoltaic-modules. Self-commutated inverters have replaced the grid-commutated ones. The same is true for the bulky low-frequency transformers versus the high-frequency transformers, which are used to adapt the voltage level. The AC-Module provides a modular design and a flexible behavior in various grid conditions. It hereby opens the market for photovoltaic-power for everyone at a low cost due to the plug and play concept, which also makes a further enlargement of the system possible.

photovoltaic; single-phase grid-connected inverter; renewable energy.