| 并网光伏逆变器闪变特性测量与分析 |
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| 引用本文： | 董玮. 并网光伏逆变器闪变特性测量与分析[J]. 电测与仪表, 2015, 52(9) |
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| 作者姓名： | 董玮 |
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| 作者单位： | 中国电力科学研究院新能源所,南京,210003 |
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| 基金项目： | 国家电网公司科技项目资助 |
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| 摘 要： | 辐照度变化和并网光伏逆变器启停机引起的功率波动都可能会引起并网点电压闪变。文章首先分析了闪变与并网点短路容量、阻抗角度及并网功率波动大小的关系,并基于Matlab/Simulink软件搭建了虚拟电网模型和数字闪变测试仪模型。针对目前广泛使用的500k W光伏逆变器开展了不同运行功率和启停机工况下的测试,测量不同工况下该逆变器引起的闪变大小,并对测量结果进行了对比分析。
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| 关 键 词： | 并网光伏逆变器 闪变 虚拟电网 闪变测试仪 |
| 收稿时间： | 2014-06-27 |
| 修稿时间： | 2014-06-27 |
Measurment and Analysis on Flicker Characteristic of Grid-connected PV Inverter |
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| dongwei. Measurment and Analysis on Flicker Characteristic of Grid-connected PV Inverter[J]. Electrical Measurement & Instrumentation, 2015, 52(9) |
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| Authors: | dongwei |
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| Affiliation: | China Electric Power Research Institute |
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| Abstract: | Power fluctuation caused by irradiance changes may cause the flicker at the grid-connected point. The relationship between the flicker and grid impedance, the power change amount is analysed. And the flicker is tested on a 500kW photovoltaic (PV) inverter at different load and switch operation. Based on the vitual gird model and the flickermeter model developed on Matlab/Simulink platform, the flicker test results of switching operation and continues operation are analysed. |
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| Keywords: | grid-connected PV inverters flicker virtual grid flicker meter |
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