Abstract This paper proposes an enhanced dynamic control strategy for a grid emulator. The proposed control switches between resonant and predictive controls in order to benefit from the advantages of both controls and to cope with their drawbacks. It ensures good dynamic performance in transient state and very low error in case of parametric or load variation during steady state. The most used control for grid emulator based on power converters is the one based on resonant controllers. Although this control is characterized by its robustness against parameters and load variation, it suffers from low performance in transient operation. The predictive control, which is characterized by its fast dynamic performance in transient state, can be used to overcome the resonant controllers limit. An exhaustive theoretical study reinforced by simulation and experimental results validate the capability, robustness and high performances of the proposed dynamic control strategy.

中文翻译：

---

强大的动态网格仿真器控制

摘要 本文提出了一种增强型电网仿真器动态控制策略。所提出的控制在谐振控制和预测控制之间切换，以便从这两种控制的优点中受益并克服它们的缺点。它确保在瞬态下具有良好的动态性能，并且在稳态期间参数或负载变化的情况下误差非常低。基于功率转换器的电网仿真器最常用的控制是基于谐振控制器的控制。虽然这种控制的特点是其对参数和负载变化的鲁棒性，但它在瞬态操作中性能低下。预测控制以其在瞬态下的快速动态性能为特征，可用于克服谐振控制器的限制。