Abstract
DC distribution systems, consisting of several feedback-controlled converters integrated together to form a complex interconnected system, suffer from potential degradation of stability caused by negative incremental impedances due to the presence of constant power loads. Due to the complexity of integrated DC distribution systems, analysis and design of such systems to guarantee system stability and performance is a difficult problem. As an active technique to solve subsystem interaction problem and improve system stability, the Positive Feed-Forward (PFF) Control is proposed in combination with a novel Passivity-Based Stability Criterion. In particular, the PFF control is designed based on imposing passivity of the overall bus impedance. If passivity of the overall DC bus impedance is ensured, stability is guaranteed as well. The design formulation for the PFF controller, so that both stability and performance are guaranteed, is discussed in detail. The approach results in greatly improved stability and damping of transients on the DC bus voltage and is validated by both simulations and experimental results.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
