PFC based Three Stage Interleaved Boost Converter for Renewable Energy System

Recent advances in converter technology have proposed interleaved boost converters with lower output voltage ripple. AC sources are connected to DC loads via PFC-ILBC converters. The open loops of two-stage PFC-ILBC and three-stage PFC-ILBC are compared. A closed loop PFC-ILBC regulates the load voltage. A suitable closed loop controlled ILBC controller is discussed. The PFC-ILBC employs a linked inductor and a switching capacitor to achieve high voltage gain. In terms of Ts and Ess, the responses of closed loop control of an ILBC using PI and PID are investigated. According to simulation data, PID controlled PFC-ILBC has a greater time domain response than PI controlled PFC-ILBC.