A New Method of Linear Control for Optimum Transfer of Power from a Solar Cell Array to the Distribution Network

Abstract
The paper describes a new method of linear control for transfer of optimum power from a Solor Cell Array (SCA) to the distribution network. It is shown that the current corresponding to the optimum power varies almost linearly with the level of illumination. By connecting a storage battery in parallel to the SCA, the charging current to the battery is continuously adjusted by sensing the illumination level and current simultaneously. Variation of the charging current keeps the operating point on the optimum power locus. In the ac distribution network the power is to be fed through a current-source inverter and a step up/down transformer.