Photovoltaic converter system suitable for use in small scale stand-alone or grid connected applications

Of the comiiiercially-availablc solutions for the conversion of encrgy fiom photovoltaic arrays into a usable h m , a large number consist of system which have bccn developed for a dedicated application and are thus very itillcxible. Those thal are available as a generic module for use in a variety of environments arc often restricted to a singlc mode of opcration, for example utility supply only. A generic modular photovoltaic power conversion system is presented, aimed at singlephase applications which can supply passive AC and DC loads with a regulated voltage or by way of a maximum power tracking system with thc maximum power available from the array. In addition ii live AC load such as the utility can be supplied with maximum array power. The systcm is small, light and can be constriictcd from readily available components.