| 光伏并网逆变器零电压穿越控制策略的研究 |
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| 引用本文： | 陈艺峰,赵香桂,王南,刘昭翼.光伏并网逆变器零电压穿越控制策略的研究[J].变流技术与电力牵引,2014(3):16-19. |
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| 作者姓名： | 陈艺峰 赵香桂 王南 刘昭翼 |
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| 作者单位： | 南车株洲电力机车研究所有限公司; |
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| 摘 要： | 针对光伏电站电网故障时突然脱网的不利影响，设计了一种光伏逆变器零电压穿越控制策略。采用基于电网电压正序分量的快速锁相技术，并根据电网电压的跌落深度给予并网点电压一定的无功支撑，实现了电网瞬时脱网情况下的不间断运行。250kW半实物仿真实验结果验证了该技术方案的有效性和可靠性。
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| 关 键 词： | 零电压穿越 光伏发电 光伏并网逆变器 |
Research on Zero Voltage Ride-through Control Strategy of Photovoltaic Grid-connected Inverter |
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| CHEN Yi-feng,ZHAO Xiang-gui,WANG Nan,LIU Zhao-yi.Research on Zero Voltage Ride-through Control Strategy of Photovoltaic Grid-connected Inverter[J].Converter Technology & Electric Traction,2014(3):16-19. |
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| Authors: | CHEN Yi-feng ZHAO Xiang-gui WANG Nan LIU Zhao-yi |
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| Institution: | (CSR Zhuzhou Institute Co.,Ltd., Zhuzhou,Hunan 412001,China) |
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| Abstract: | Based on the adverse effects of unexpected power fall caused by grid-breakdown of photovoltaic power station. It designed a control strategy of zero voltage ride through of the photovoltaic（PV） inverter. High-speed phase-locked technology is used based on the positive sequence voltage and a certain amount of reactive power are provided by the grid-connected inverter to support the network voltage according to the drop degree of grid voltage, which makes the inverter keep grid-connected state when the instantaneous power fall occurrs. Semi-physical simulation experimental results prove the validity and reliability of the technical scheme. |
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| Keywords: | zero voltage ride-through（ZVRT） photovoltaic generation grid-connected PV inverter |
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