In this paper, an optimization problem is formulated and a complete control solution is proposed that uses the Model Predictive Control (MPC) for AC/DC energy management of a Modular Multilevel Converter (MMC) controlled in grid-forming mode. For the implementation of the MPC, a relevant model of the grid is found by system identification. The identified model is then validated before its usage in the MPC. The simulation results show a better response to disturbances from AC grid and DC grid, as well as a better coordination in the management of the MMC internal energy and DC grid voltage compared to the commonly used dual PI structure.
Rayane Mourouvin, Jing Dai, Sjoerd Boersma,
Seddik Bacha, Didier Georges, Abdelkrim Benchaib
Presented at ECC’21