Control and Protection of Dispersed Photovoltaic Power Systems Integratred into Low-Voltage Distribution Feeders.

This paper considers the problem of current distortion accompanying the dispersed power system added to the utility network, and the problem of disconnecting the dispersed power system in the event of an accident on the utility network. Among the components composed of the dispersed power system, the semiconductor power converter is mostly related primarily to the forementioned problems. For home use, the capacity of the dispersed power system is about 2 kVA, which is the main topic in this paper. For this purpose, voltage-fed inverters have been used being capable of self-sustaining operation, but the demerit of requiring large space and the generation of current distortion. We studied the effectiveness of using an instantaneous current controlled inverter, which has recently been used in active filters. [ABSTRACT FROM AUTHOR]