MMC分序补偿控制在交直流配电网能量互动中的策略应用

The Strategic Application of MMC Sequential Compensation Control in Energy Interaction of AC and DC Distribution Networks

随着电力系统的深度融合与综合化发展,交直流配电网逐步变为优化能源消耗和确保电网稳定的核心。为研究交直流配电网中负荷不平衡对实际电能利用的影响,实验在此提出了一种基于模块化多电平变流器(MMC)的分序补偿控制策略来补偿分序。实验首先对交直流配电网的MMC拓扑结构与数学模型进行构建,接着融合分序补偿控制共同控制改善交直流配电网电能能量互动。仿真结果显示,在T1时刻,MMC开始针对负序和零序电流进行合理的补偿控制,实现了有效的调整。最终实验显示,该策略有效地控制了非平衡的交流输出,有助于提升交直流配电网的电能质量。

With the deep integration and comprehensive development of the power system,the AC and DC distribution network has gradually become the core of optimizing energy consumption and ensuring grid stability.To study the impact of load imbalance on actual energy utilization in AC/DC distribution networks,a sequential compensation control strategy based on Modular Multilevel Converter(MMC)was proposed in this experiment to compensate for the splitting.The experiment first constructs the MMC topology structure and mathematical model of the AC/DC distribution network,and then integrates sequential compensation control to jointly control and improve the energy interaction of the AC/DC distribution network.The simulation results show that at time T1,MMC began to implement reasonable compensation control for negative sequence and zero sequence currents,achieving effective adjustment.The final experiment shows that this strategy effectively controls unbalanced AC output and helps to improve the power quality of the AC/DC distribution network.