1. Robust Feedback-Linearizing Output Voltage Regulator for DC/DC Boost Converter.
- Author
-
Kim, Seok-Kyoon and Lee, Kyo-Beum
- Subjects
VOLTAGE regulators ,DC-to-DC converters ,PARAMETER estimation ,CLOSED loop systems ,FEEDBACK control systems ,ROBUST control - Abstract
This paper suggests a cascade output voltage regulation strategy for dc/dc boost converters that embeds a robust inner-loop current controller against parameter variations. The contributions of this paper are divided into two parts. The first contribution is to present a simple and robust inner-loop current controller despite parameter uncertainties, guaranteeing the stability of the whole closed-loop system including the first-order internal dynamics. The second contribution is to show that an outer-loop proportional–integral regulator can stabilize the output voltage error without relying on any parameter information. Simulations and experiments using a 3-kW dc/dc boost converter showed that the proposed method offers satisfactory closed-loop performance in the presence of parameter uncertainties. [ABSTRACT FROM PUBLISHER]
- Published
- 2015
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