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A ZVRT Control Method for Controlling Output Current of Inverter

机译：一种控制逆变器输出电流的ZVRT控制方法

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In this paper, a control method for zero voltage ride-through of inverter output current is proposed for the problem of off-grid of photovoltaic power station in single-phase drop of grid voltage. The method gives a reference value of the current positive and negative sequence according to the requirement of the zero-voltage traversing standard during the voltage drop, thereby avoiding an overcurrent problem that may occur during the fault of the inverter output current, and ensures the stability of the DC side voltage during the voltage drop. At the same time, this paper uses a second-order complex filter on the extraction of positive and negative sequence components to improve the extraction efficiency of positive and negative sequence fundamental waves. Finally, a photovoltaic grid-connected model is built on the MATLAB/Simulink platform to verify its effectiveness.
机译：本文据说，提出了一种控制逆变电流循环电流的控制方法，用于电网电压的单相滴电极的光伏电站外网的问题。该方法给出了根据电压降期间零电压遍历标准的要求的电流正和负序列的参考值，从而避免了在逆变器输出电流故障期间可能发生的过电流问题，并确保稳定性电压下降期间的直流侧电压。同时，本文采用二阶复滤器对正序和负序组件的提取，以提高正序和负序波的提取效率。最后，在Matlab / Simulink平台上建立了光伏网格连接的模型，以验证其有效性。

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