A Single Synchronous Frame Hybrid (SSFH) Multifrequency Controller for Power Active Filters
Etxeberria-Otadui, I.
de Heredia, A.L.
Gaztanaga, H.
Bacha, S.
Reyero, M.R.
IKERLAN Technol. Center, Mondragon;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: Oct. 2006
Volume: 53,
Issue: 5
On page(s): 1640-1648
ISSN: 0278-0046
INSPEC Accession Number: 9167392
Digital Object Identifier: 10.1109/TIE.2006.881994
Current Version Published: 2006-10-02
Abstract
Conventional integration-based controllers, such as the multisynchronous PI and the multiresonant controllers, are well adapted for multifrequency-current-control applications. The first controller involves multiple reference frames, while the second one operates in a static frame using multiple resonant regulators. This paper presents a hybrid type of controller, called a single synchronous frame hybrid (SSFH) controller, which combines both features: It operates in an SSF mixing conventional PI and resonant controllers. A detailed design criterion for the SSFH controller is presented based on a frequency-response approach. Digital-implementation aspects (such as computation delays) and the phase margin of the system are taken into consideration during the design process. The SSFH and the multiresonant controllers are compared considering various criteria such as the computational load and the performances in terms of transient and steady-state response. It is concluded that the SSFH controller is a very interesting and execution time-saving structure for heavily distorted multifrequency applications, which is especially adapted for balanced or slightly unbalanced cases
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