Digital current controllers applied to the boost power factor correction converter with load variation
Digital current controllers applied to the boost power factor correction converter with load variation
- Author(s): L. Roggia ; F. Beltrame ; J. Eduardo Baggio ; J. Renes Pinheiro
- DOI: 10.1049/iet-pel.2011.0086
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- Author(s): L. Roggia 1 ; F. Beltrame 1 ; J. Eduardo Baggio 1 ; J. Renes Pinheiro 1
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View affiliations
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Affiliations:
1: Power Electronics and Control Research Group, Federal University of Santa Maria, Santa Maria, Brazil
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Affiliations:
1: Power Electronics and Control Research Group, Federal University of Santa Maria, Santa Maria, Brazil
- Source:
Volume 5, Issue 5,
May 2012,
p.
532 – 541
DOI: 10.1049/iet-pel.2011.0086 , Print ISSN 1755-4535, Online ISSN 1755-4543
This study proposes two digital predictive current controllers applied to the boost power factor correction (PFC) converter able to operate with a load variation up to 600 W. A comparison between them is made to determine which controller presents the best performance and benefit–cost ratio. They have in common the possibility of operation in discontinuous, mixed and continuous conduction modes. This operation capability yields several advantages to boost PFC converters with variable loads, as will be discussed. The control laws and the structure of the proposed controllers are shown in detail. Implementation issues (hardware and software) are also shown. Experimental results point out that high converter power factor and low input current total harmonic distortion (THD) are achieved over the entire output power range using both current controllers, with a low implementation cost.
Inspec keywords: power convertors; load flow control; power factor correction; electric current control; harmonic distortion; predictive control; harmonics suppression
Other keywords:
Subjects: Power system control; Optimal control; Power convertors and power supplies to apparatus; Current control; Control of electric power systems; Power supply quality and harmonics
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