Dynamic behaviour of a ring coupled boost converter system with passivity-based control

TL;DR

This paper analyzes a ring-coupled DC/DC converter system using passivity-based control to ensure stability and voltage regulation despite external disturbances, demonstrating its robustness and flexibility through numerical results.

Contribution

It introduces the application of passivity-based control to a ring-coupled converter system for improved stability and disturbance rejection.

Findings

Effective stabilization at desired DC voltage

Robustness against external disturbances

Demonstrated flexibility of the control method

Abstract

This paper discusses a dispersed generation system of multiple DC/DC converters with DC power sources connected in a ring formulation. Here is presented the analysis of the system based on the stored energy and passivity characteristics of the system. Passivity Based Control (PBC), with its energy-modifying and damping-injection technique, is applied to a ring coupled converter system to stabilize itself at a desired DC voltage in the presence of external disturbances. The numerical results reveal the effective application of the control as a robust and flexible technique.