Gain Scheduling Control Design for Active Front End for Power-Hardware-in-The-Loop Application: An LMI Approach

The paper proposes a control design approach for the three-phase grid-side converter of a power amplifier inverter for Power-Hardware-In-the-Loop application. The main challenge for the controller design is to achieve a trade-off between the tight DC link voltage regulation and grid-side power quali...

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Bibliographic Details
Published inIEEE transactions on energy conversion Vol. 37; no. 4; pp. 2974 - 2983
Main Authors Rimorov, Dmitry, Tremblay, Olivier, Slimani, Karim, Gagnon, Richard, Couillard, Benjamin
Format Journal Article
LanguageEnglish
Published New York IEEE 01.12.2022
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Active control
active front end
Alternating current
Control systems design
Controllers
Electric potential
Feedback control
Frequency control
Gain scheduling
Hardware-in-the-loop simulation
Inverters
linear matrix inequalities
Power amplifiers
Power-hardware-in-the-loop
Real-time systems
Regulators
Ripples
Semidefinite programming
State feedback
Topology
Voltage
Voltage control
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Summary:The paper proposes a control design approach for the three-phase grid-side converter of a power amplifier inverter for Power-Hardware-In-the-Loop application. The main challenge for the controller design is to achieve a trade-off between the tight DC link voltage regulation and grid-side power quality objectives due to the established topology of the power amplifier and the associated ripple of the DC link voltage. To this end, a full-state feedback controller with a gain scheduling strategy is adopted to ensure fast control of the DC link voltage, while minimizing the negative impact of DC link voltage ripple on the AC output current. We formulate the problem of gain selection as a two-stage semidefinite programming problem, which allows using efficient convex program solvers. We also describe a bumpless transfer strategy to minimize any transients associated with control output discontinuities following gain transition. The paper demonstrates comprehensive validation of the designed controller, including offline simulations, Control-Hardware-In-the-Loop tests with an embedded controller, as well as experimental validation on a 2-kV 167-kVA module.
ISSN:0885-8969
1558-0059
DOI:10.1109/TEC.2022.3193930