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Model predictive control of a 3-phase grid-connected B6-inverter with LCL-filter in abc-coordinates

 
: Stickan, Benjamin; Reichert, Stefan; Diehl, Moritz

:
Postprint urn:nbn:de:0011-n-4775532 (2.0 MByte PDF)
MD5 Fingerprint: d1146131d56f5e3ccf8ac0cc1ed0eb04
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Created on: 18.1.2019


Institute of Electrical and Electronics Engineers -IEEE-:
19th European Conference on Power Electronics and Applications, EPE 2017, ECCE Europe : 11-14 September 2017, Warsaw, Poland, Poland
Piscataway, NJ: IEEE, 2017
ISBN: 978-90-75815-27-6
ISBN: 978-90-75815-26-9
ISBN: 978-1-5386-0530-1
9 pp.
European Conference on Power Electronics and Applications (EPE) <19, 2017, Warsaw>
European Commission EC
H2020; 646463; NETFFICIENT
Energy and economic efficiency for today’s smart communities through integrated multi storage technologies
European Commission EC
FP7; 607957; TEMPO
Training in Embedded Predictive Control and Optimization
European Commission EC
H2020; 642682; AWESCO
Airborne Wind Energy System Modelling, Control and Optimisation
English
Conference Paper, Electronic Publication
Fraunhofer ISE ()
Elektrische Energiesysteme; Energiesystemtechnik; Leistungselektronik

Abstract
A MIMO1 current-control approach for 3-phase grid connected inverter systems in the abc-frame is proposed. Redundant states are eliminated and the system is controlled via an explicit MPC2-approach. To achieve steady-state accuracy, the system-model is augmented by a simplified grid-model to obtain a high dynamic control structure, which supersedes the use of resonant controllers and coordinate transformations. The developed control structure can handle balanced as well as unbalanced grid conditions without loss in accuracy and only consists of a single controller whithout any decoupling techniques. Furthermore, the property of MPC-schemes to explicitly respect state and input constraints facilitates the use of implicit flat-top alike modulation schemes to improve the efficiency for certain inverter topologies.

: http://publica.fraunhofer.de/documents/N-477553.html