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MODELLING AND CONTROL OF AN AC/AC BOOST-BUCK CONVERTER
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| Author(s) |
N. H. M. Hofmeester; P. P. J. van den Bosch; J. B. Klaassens |
| Abstract |
A single-phase, four-switch AC/AC power conditioner with active filtering is proposed, based on the DC/DC Boost-Buck topology. The circuit is designed as a link between a single-phase utility grid and a single-phase consumer (up to +/- 10 kVA). This converter is used in a feasibility study for a power utility company to enable peak shaving by means of grid voltage reduction, while satisfying supply conditions. This requires a simple AC / AC converter with both step-up and step-down capabilities. The proposed converter has two control inputs to control independently both the input power factor and the output voltage. This paper presents a feedback control algorithm needed for converter operation under dynamical grid disturbances and load variations. The controller uses a vector-control like approach with a discrete Fourier transformation in the control loop. The resulting digital controller can easily be integrated for mass production. |
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| Filename: | Unnamed file |
| Filesize: | 3.285 MB |
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| Type |
Members Only |
| Date |
Last modified 2019-05-21 by System |
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