Nonlinear Power Sharing Controller for a Double-Input H-Bridge-Based Buckboost-Buckboost Converter

• Published in: IEEE transactions on power electronics Vol. 28; no. 5; pp. 2402 - 2414
• Main Authors: Ahmadi, R., Zargarzadeh, H., Ferdowsi, M.
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.05.2013; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied sciences; Buckboost-buckboost converter; Capacitors; Controllers; Convertors; double-input converter; Electrical engineering. Electrical power engineering; Electrical machines; Electronic equipment and fabrication. Passive components, printed wiring boards, connectics; Electronics; Equations; Exact sciences and technology; Inductors; Lyapunov-based nonlinear controller; Mathematical functions; Mathematical model; Mathematical models; Power electronics, power supplies; power sharing; Regulation and control; Simulation; Switches; Transformers; Voltage control; Averaging method; Prototype; Control system; Non linear control; Control synthesis; Load regulation; Power electronics; Review; Experimental study; Equations of state; power sharing; Power control; Non linear model; Lyapunov-based nonlinear controller; double-input converter; Converter; System simulation; Buckboost-buckboost converter
• ISSN: 0885-8993; 1941-0107
• DOI: 10.1109/TPEL.2012.2211620

This paper describes the design of a nonlinear controller with power sharing control capabilities of a double input buckboost-buckboost converter. First, this converter is introduced, and its principles of operation and the equations describing the converter circuit are reviewed. Next, the nonlinear model of the buckboost-buckboost converter is found by averaging the state equations. Then, a Lyapunov-based nonlinear controller, which is adaptive against input voltage and load disturbances (to provide line regulation and load regulation) is proposed. Finally, several simulation and experimental results from a prototype buckboost-buckboost converter operating under the proposed controller are reported to verify the operation of the designed controller.