LMI-based control design to enhance robustness of synchronous power controller
Document typeConference report
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Rights accessOpen Access
European Commission's projectFLEXITRANSTORE - An Integrated Platform for Incresed FLEXIbility in smart TRANSmission grids with STORage Entities and large penetration of Renewable Energy Sources (EC-H2020-774407)
Synchronous power controller (SPC) has emerged as a suitable technique to equip grid-connected inverters with grid supporting functionalities such as inertial emulation and frequency/voltage support by mimicking the behavior of synchronous machines. Although the feasibility of the SPC has been experimentally verified under various operating conditions, parameter tuning for the SPC to ensure a stable inverter system has not been adequately addressed in the literature. To fill this gap, this paper presents a robust control design for the SPC to ensure its stable operation under the grid impedance variation. The proposed design procedure consists of system modelling and robust optimal parameter selection by using linear matrix inequality approach. The effectiveness of the proposed control design is proven by means of simulations and experiments.
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CitationLai, N.; Tarraso, A.; Rodriguez, P. LMI-based control design to enhance robustness of synchronous power controller. A: IEEE Energy Conversion Congress and Exposition. "2019 IEEE Energy Conversion Congress and Exposition (ECCE)". Institute of Electrical and Electronics Engineers (IEEE), 2019, p. 1429-1433.
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