Abstract

In this paper, a predictive current control technique is proposed for interleaved boost converter operating in continuous current mode. State-space averaging technique is used to model the interleaved boost converter system. Predictive valley current control law with trailing edge modulation is derived so as to track the source current to the predefined reference value. The control loop is designed to ensure equal load distribution among the parallel branches. Further, the same control law is capable of regulating the load voltage against step changes in load and line voltage. Predictive control strategy is implemented by using analog DSP ADMC401. Simulation and experimental results prove the validity of the proposed technique.

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