Title :
Non-linear robust control of a series resonant DC/DC converter for bio-medical applications
Author :
Rangan, V. ; Helmicki, A.J. ; Nebrigic, D.D. ; Melvin, D.B. ; Glos, D.
Author_Institution :
Cincinnati Univ., OH, USA
Abstract :
This paper examines the control of a series resonant DC/DC converter using an active resonant tank for application to non-invasive, biomedical energy transmission systems. A novel switched capacitor based topology is used to design a controller for the converter. The output voltage regulation problem is cast as a robust disturbance rejection problem. Mathematical modeling results in a small signal linearized set of equations which describe the dynamics of the converter. A first order controller with a non-linear element is developed using the small signal model and tested against the original non-linear system. Results presented show the effectiveness of the extremely simple controller which is very advantageous from the viewpoint of minimizing size and complexity in practical implementations
Keywords :
DC-DC power convertors; biocontrol; control system synthesis; feedback; nonlinear control systems; prosthetic power supplies; resonant power convertors; robust control; switched capacitor networks; voltage control; active resonant tank; biomedical energy transmission systems; nonlinear robust control; output voltage regulation problem; robust disturbance rejection problem; series resonant DC/DC converter; switched capacitor based topology; Capacitors; Control systems; DC-DC power converters; Mathematical model; Resonance; Robust control; Robustness; Switching converters; Topology; Voltage control;
Conference_Titel :
Control Applications, 1996., Proceedings of the 1996 IEEE International Conference on
Conference_Location :
Dearborn, MI
Print_ISBN :
0-7803-2975-9
DOI :
10.1109/CCA.1996.558981
