A Hybrid Model Predictive Controller for an Integrated Dual-DC Boost Converter

Multi-port dc-dc converters find significance in applications such as renewable integration, and hybrid- source systems. Power flow control and its management is one of the major challenges associated with multi-port converters. This work proposes a hybrid model predictive controller for control of power within the integrated dual dc boost converter topology. This topology is a three-port converter with one bidirectional port (suitable for an energy buffer, eg. battery). Due to sharing of control duty ratio using the same set of controllable switches, using separate controllers for each control objective results in cross-regulation within the different ports. This work presents the model predictive controller which can simplify control design for the multi-port system and hence provide robustness to the regulated system. The design of the controller and its evaluation is presented in this work.