Design and Modeling of A Hamiltonian Control Law for A Bidirectional Converter in DC Distribution Applications

This article presents a comprehensive study on the design and modeling of a Hamiltonian control law for bidirectional converters employed in DC distribution applications. Additionally, the main advantages of the proposed control laws include precise energy flow control, reduced switching losses, and enhanced overall system stability when compared to the traditional PI compensation method commonly used in bidirectional converters. Notably, this innovative control law obviates the need for complex and time-consuming converter modeling processes. Furthermore, experimental test rigs for the studied system have been set up to evaluate the performance of the proposed control algorithm. The studied system consists of one bidirectional and two buck converters, all interconnected within the same distribution bus. These converters are meticulously designed to operate efficiently in a 96 V, 570 W DC distribution environment. The obtained experimental results demonstrate that integrating the Hamiltonian control law with bidirectional converters significantly enhances the precision and reliability of DC distribution bus regulation.