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电网技术  2014 

基于双阶广义积分的单相光伏并网逆变器灵活功率控制

DOI: 10.13335/j.1000-3673.pst.2014.04.020, PP. 952-958

Keywords: 单相光伏并网逆变器,灵活功率控制,双阶广义积分,比例准谐振,解耦控制

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Abstract:

针对单相光伏并网逆变器的特点,提出一种在静止坐标系下单相光伏并网逆变器的灵活功率控制方法。通过双阶广义积分算法得到与电网电压同相以及滞后电网电压90°的2个正交电网电压。在静止两相坐标系下通过比例准谐振控制实现对给定电流的快速跟踪。实验结果表明该控制方法可实现有功功率和无功功率的解耦控制,系统具有良好的静态、动态性能。

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