“碳达峰、碳中和”背景下储能变流器控制方法研究

Research on a Control Method of Energy Storage Converter Against a background of Peaking Carbon Dioxide Emissions and Achieving Carbon Neutrality

本文使用新型中点箝位型(NPC)三电平储能变流器作为研究对象,结合矢量控制原理,在abc自然坐标系下提出一种用于三电平储能变流器的新型矢量控制方法。首先建立了储能变流器的数学模型,结合对矢量控制的原理分析,提出一种abc自然坐标系的新型矢量控制方法。然后在MATLAB/Simulink仿真软件中搭建了仿真实验平台。实验结果表明本文方法可以在无坐标变换和锁相环的情况下,实现有功、无功电流的独立控制,系统运行稳定良好。

A new type of neutral point clamped(NPC)three-level energy storage converter is studied in this paper.Combined with the vector control principle,a new vector control method for the three-level energy storage converter is proposed in abc natural coordinate system.A mathematical model of energy storage converter is established,and a new vector control method of abc natural coordinate system is proposed with the aid of principle analysis of vector control.Then a simulation experimental platform is built in MATLAB/Simulink simulation software.The experimental results show that the method proposed in this paper can achieve independent control of active and reactive current without coordinate transformation and phase-locked loop,and can ensure stable operation of the system.