Design and fabrication of closed loop Two-Phase Interleaved Boost Converter with Type-III controller

摘要

This paper presents design, fabrication and testing of a Two-Phase Interleaved Boost Converter (IBC) with Type-III controller by utilizing voltage mode control. The small-signal modeling of IBC is derived in continuous conduction mode (CCM) of operation. A right half plane (RHP) zero is appeared in the control to output plant transfer function of the IBC. Due to non-minimum phase problem, the Type-III controller is designed by using `k' factor approach and is implemented for closed loop operation of IBC for achieving better dynamic performance and stability. The closed loop IBC with designed Type-III controller is fabricated and tested in the laboratory. Simulation and experimental results have been produced to show the efficacy of the proposed converter control system.