Finite control set - model predictive control based on deadbeat control for LCL-type grid-connected invertersFinite control set - model predictive control based on deadbeat control for LCL-type grid-connected inverters Πλήρης Δημοσίευση σε Συνέδριο Conference Full Paper 2023-05-122021enThis work has been performed within the framework of the project “eSOLAR: Principle and control of high-efficiency Buck-Boost type Photovoltaic inverter” of the program “Bilateral and Multilateral Research & Technology Cooperation between Greece and China”. In Greece, this project was funded by the Operational Program “Competitiveness, Entrepreneurship and Innovation 2014-2020” (co-funded by the European Regional Development Fund) and managed by the General Secretariat of Research and Technology, Ministry of Education, Research, and Religious Affairs under the project eSOLAR/T7ΔKI-00066.In recent years, due to fast dynamic response, no modulator and multi-constraint control, the finite control set model predictive control (FCS-MPC) has been widely employed in power converters. However, the computational burden of traditional FCS-MPC is relatively heavy owing to traversing all possible voltage vectors. In this paper, a novel FCS-MPC algorithm is proposed for LCL-type grid-connected inverters. Firstly, the weighted average inductor current (WAIC) algorithm is utilized to lower the order of the LCL filter model. Then, based on the idea of deadbeat control, the expected inverter output voltage vector is calculated according to the grid-injected current reference. Depending on the desired voltage vector, the optimal voltage vector which minimizes the constructed cost function, is selected from its neighboring voltage vectors. Compared with the traditional FCS-MPC techniques, the proposed control algorithm can decrease the candidate voltage vectors from eight to three, which effectively reduces the computational complexity of the algorithm. A simulation model and experimental platform of a two-level three-phase grid-connected inverter are established to prove the performance of the proposed algorithm.http://creativecommons.org/licenses/by/4.0/2021 IEEE 1st International Power Electronics and Application Symposium Zhang Bingtao Wu Weimin Gao Ning Koutroulis Eftychios Κουτρουλης Ευτυχιος Chung Henry Shu-Hung Blaabjerg, Frede, 1963- Institute of Electrical and Electronics Engineers Deadbeat control Finite control set model predictive control (FCS-MPC) LCL-type grid-connected inverters The weighted average inductor current (WAIC)