基于经济模型预测控制的舰船微网频率电压控制与经济优化

The dependence of ship power systems on renewable energy generation is increasing. The intermittent nature of renewable energy generation can cause frequency deviations in ship microgrid systems. Therefore, the integration of a Hybrid Energy Storage System (HESS) is crucial for enhancing the resilience of microgrid frequency deviations. Load frequency control (LFC) and voltage control requires an appropriate control strategy to achieve this. Based on the above considerations, an economic model predictive control (EMPC) strategy is proposed in this paper to regulate and optimize ship microgrids. The proposed EMPC combines the regulation objective with the economic optimization objective, so that frequency correction and system economic improvement can be performed simultaneously. Through theoretical analysis, this paper proves that the average performance of the proposed method is not lower than the steadystate performance. In addition, simulation experiments are used to verify the effectiveness and reliability of the proposed EMPC.