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TitleA series active power filter controlled by personal computer
Author(s)Sepúlveda, João
Afonso, João L.
Martins, Júlio S.
KeywordsActive power filters
p-q theory
Data acquisition
Real-time control
PC-based controller
Series active filter
Issue date9-Apr-2003
PublisherEuropean Association for the Development of Renewable Energy, Environment and Power Quality (EA4EPQ)
JournalRenewable Energy and Power Quality Journal
Abstract(s)This paper describes work that is being done in the design and implementation of a series active power filter for electrical power quality purposes. This type of filter is able to compensate for the following voltage related problems in the power grid: short blackouts for a few cycles, voltage distortion due to harmonics on a repetitive basis, voltage unbalance in three-phase systems, voltage flicker (subharmonics) and momentary over or under voltages. The main objective of the work described in the paper is to build a series active filter controlled by a personal computer with a standard multifunction data acquisition PCI bus card, because of its relative low cost and versatility. This PC based solution presents some difficulties since the control of a series active filter is a kind of application which requires a fast controller which that does not miss samples and where all real-time deadlines must be met each and every time, or the system will not operate properly. These characteristics imply that this application falls in the “hard real-time” control category. In the paper, some results are presented and some conclusions are taken using two different operating systems. Furthermore, a comparison with a microcontroller based implementation will be made.
AccessOpen access
Appears in Collections:DEI - Artigos em atas de congressos internacionais

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