A novel utility interactive photovoltaic inverter with generation control circuit

This paper describes a novel utility interactive photovoltaic inverter. Since photovoltaic modules in photovoltaic power generation systems in urban areas are installed on roofs, shadows created by neighboring homes, utility poles, and trees may sometimes cover some part of the photovoltaic modules. In this case, power generated from each photovoltaic module becomes unbalanced and its total generation power is greatly decreased, especially when the photovoltaic modules are connected in series. These problems cannot be solved in conventional systems. We developed a novel utility interactive inverter with generation control circuit. In this proposed inverter system, each of these photovoltaic modules is individually operated at its corresponding maximum power point. By using this inverter, the efficiency of the photovoltaic system can be improved.