24Characteristics of Duty Cycle Controlled Partial Shading Compensator

This paper presents characteristics of a partial shading compensator using buck converter to obtain potential maximum power under partial shading. A new method to optimize power compensator is proposed in which duty cycle control is employed. Analysis is performed by spice simulator. Not only partial shading but also differences of I-V characteristic of PV panel are considered. As a result, almost potential maximum power is obtained by the proposed method.