| 引用本文: | 王定国,陈卓,姚为正,刘刚.光伏并网逆变器低电压穿越检测方案分析[J].电力系统保护与控制,2014,42(12):143-147.[点击复制] |
| WANG Ding-guo,CHEN Zhuo,YAO Wei-zheng,LIU Gang.Analysis of grid-connected PV inverter low voltage ride through testing scheme[J].Power System Protection and Control,2014,42(12):143-147[点击复制] |
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| 摘要: |
| 通过对基于阻抗分压式和电网模拟式两种光伏并网逆变器低电压穿越LVRT检测方案分析及试验比对，阐明了两者在主电路拓扑、电压跌落幅值范围、准确性、瞬时过载能力和控制稳定性等方面的差异性。分析与试验结果表明，基于阻抗分压式的光伏并网逆变器LVRT检测方案能够真实地满足LVRT测试要求，并且输出电压波形稳定，更接近实际工况。 |
| 关键词: 光伏逆变器 低电压穿越 电压跌落发生器 阻抗分压 电网模拟器 |
| DOI：10.7667/j.issn.1674-3415.2014.12.023 |
| 投稿时间：2013-11-06 |
| 基金项目:国家高技术研究发展863计划课题（2012AA050206） |
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| Analysis of grid-connected PV inverter low voltage ride through testing scheme |
| WANG Ding-guo,CHEN Zhuo,YAO Wei-zheng,LIU Gang |
| (XJ Group Corporation, Xuchang 461000, China;Xuchang Ketop Testing Technology Co. Ltd., Xuchang 461000, China) |
| Abstract: |
| By analyzing and comparative test for LVRT test schemes based on passive-impedance network and the grid simulator, this paper deals with the diversity in terms of the main circuit topology, voltage dip range and accuracy, instantaneous overload ability and control stability etc. The analysis and testing results show that LVRT testing scheme based on the passive-impedance network can be very closer to the actual operation condition with stable output voltage waveforms. |
| Key words: photovoltaic inverter LVRT VSG passive-impedance network grid simulator |
