Design and control of a medium and high voltage modular multilevel power grid simulator

• DOI: 10.1016/j.ijepes.2024.109997
• Publication Date: 2024-05-15T21:05:42Z
• Authors: Junkun Zhang; Rong Han; Ertao Lei; Li Jin; Ying Li; Kai Ma; Ming Ma
• Keywords: Power grid

The rapid and large-scale renewable energy development poses new challenges for the traditional power grid, particularly with increasing utilization of high-power electronic interfaces. To address this, a novel grid simulator topology its control strategy are proposed, which can generate various required waveforms high performance. adopts modular multilevel structure, three-phase PWM module, an H-bridge module shared DC bus. Model predictive (MPC) outputs high-quality, fast voltage accurate tracking. Additionally, model reference adaptive (MRAC) is integrated into converter in pre-stage to estimate network side inductance value, used improve system's robustness. Moreover, switching distribution method proposed feedforward enhance reliability. Through simulation experiment, it verified that effectively accurately fault such as drop, abrupt change, frequency change. As result, be test equipment or equipment.