基于自然坐标的光伏发电系统零电压穿越

2017 32nd Youth Academic Annual Conference of Chinese Association of Automation (YAC) Pub Date : 2017-05-19 DOI:10.1109/YAC.2017.7967448

Y. Xiaoling, Hu Song, Cai Hao, He Weiguo

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引用次数: 0

摘要

根据国家标准，大型光伏并网逆变器必须具备零电压穿越能力。提出了一种基于自然坐标的ZVRT控制策略。由于省去了锁相环，省去了坐标变换，降低了控制策略的复杂度。分别讨论了对称故障和不对称故障下并网光伏逆变器的ZVRT控制问题。仿真结果表明了该控制策略在两种不同故障条件下的合理性和有效性。

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Zero-voltage ride through of photovoltaic generation system based on natural coordinate

According to national standards, large-scale photovoltaic grid-connected inverters must have zero-voltage ride through (ZVRT) capability. This paper presents a ZVRT control strategy based on natural coordinate. Complexity of the control strategy is reduced due to saving phase-locked loop and eliminating coordinate transformation. The ZVRT control of grid-connected photovoltaic inverter under symmetrical and asymmetrical faults is discussed respectively. The simulation results show the rationality and effectiveness of the control strategy under the two different fault conditions.

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来源期刊

2017 32nd Youth Academic Annual Conference of Chinese Association of Automation (YAC)

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