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首页> 外文会议>Asia Conference on Power and Electrical Engineering >Voltage Support Control Strategy of PMSG Wind Turbines During Unbalanced Grid Fault
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Voltage Support Control Strategy of PMSG Wind Turbines During Unbalanced Grid Fault

机译：电网不平衡故障时PMSG风力发电机的电压支持控制策略

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摘要

This paper highlights the necessity of supporting the point of common coupling (PCC) voltage by the fully rated converter of permanent magnet synchronous generator (PMSG) type wind turbines under unbalanced voltage sags. According to the positive and negative sequence reactive currents injected into the grid by the grid side converter (GSC) are related to the voltage of each phase at PCC during asymmetric grid faults, a voltage support control strategy is proposed. The proposed method can achieve the purpose of supporting the PCC voltage of the grid and enhance the asymmetric ride-through capability of the wind turbine. And it can retain the sequence component characteristics of the current in the event of asymmetrical faults in the grid. The effect of different control options has been demonstrated using simulation on a test network and conclusion deduced.
机译：本文强调了在不平衡电压骤降的情况下，必须由永磁同步发电机（PMSG）型风力发电机的全额定转换器来支持公共耦合（PCC）电压点的必要性。针对电网非对称故障时电网侧换流器（GSC）注入电网的正序和负序无功电流与PCC各相的电压有关，提出了一种电压支持控制策略。所提出的方法可以达到支持电网的PCC电压的目的，并增强了风力发电机的不对称穿越能力。如果电网中出现非对称故障，它可以保留电流的顺序分量特性。通过在测试网络上进行仿真，已证明了不同控制选项的效果，并得出了结论。

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