Title LMI-based Control Design to Enhance Robustness of Synchronous Power Controller
Authors LAI, NGOC BAO, Tarraso A. , RODRÍGUEZ CORTÉS, PEDRO
External publication No
Means IEEE Energy Convers. Congr. Expo., ECCE
Scope Conference Paper
Nature Científica
Web https://www.scopus.com/inward/record.uri?eid=2-s2.0-85076769633&doi=10.1109%2fECCE.2019.8912677&partnerID=40&md5=5d9a8b42f9605d7cf49a1e1811a851c9
Publication date 01/01/2019
Scopus Id 2-s2.0-85076769633
DOI 10.1109/ECCE.2019.8912677
Abstract 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. © 2019 IEEE.
Keywords Linear matrix inequality; Synchronous power controller; Virtual admittance; Virtual synchronous machine
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