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Multivariable Model Predictive Control for a Virtual Synchronous Generation-Based Current Source Inverter

Jonggrist Jongudomkarn
Department of Electrical Engineering, Faculty of Engineering, Khon Kaen University, Thailand

Abstract—Three-phase current-source inverters are an alternative solution for interfacing photovoltaic modules to the utility thanks to its voltage boosting ability. This paper presents a virtual synchronous generator strategy for a three-phase current-source inverter using a multivariable model predictive control. The proposed method can ensure operations in both grid-connected and islanded modes while achieving virtual inertia features to stabilize the grid frequency and active damping to reduce grid current distortions caused by an output CL filter included on the grid side of the system. The obtained simulation results in the PSCAD/EMTDC environment software verify the effectiveness and the excellent performance of the proposed method.
 
Index Terms—Current source inverter, distributed power generations, photovoltaics, power system stability, predictive control, virtual synchronous generator

Cite: Jonggrist Jongudomkarn, "Multivariable Model Predictive Control for a Virtual Synchronous Generation-Based Current Source Inverter," International Journal of Electrical and Electronic Engineering & Telecommunications