| 考虑三相电压不平衡的光伏并网逆变器稳态误差自动化控制方法 |
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| 引用本文:邱桂华1,汤志锐1,黄俊贤2.考虑三相电压不平衡的光伏并网逆变器稳态误差自动化控制方法[J].计算技术与自动化,2025,(3):71-76 |
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| 中文摘要:为改善光伏并网逆变器稳态控制效果,设计了考虑三相电压不平衡的光伏并网逆变器稳态误差自动化控制方法。利用数据采集系统对逆变器的运行数据进行平滑处理,构建光伏并网逆变器稳态函数,确定输出电压稳态误差和输电电流稳态误差两个控制目标,通过计算控制参数及控制器的预测结果,设计逆变器稳态误差自动化控制器,并生成相应的控制算法,利用控制算法对控制参数进行调整,实现对逆变器稳态误差的自动化控制。实验测试发现,设计的方法鲁棒性较高,且稳态误差的数值变小,控制效果较好。 |
| 中文关键词:三相电压不平衡 光伏并网 逆变器 稳态误差 自动化控制 控制方法 |
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| Automatic Control Method for Steady-State Error of Photovoltaic Grid Connected Inverters Considering Three-Phase Voltage Imbalance |
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| Abstract:To improve the steady-state control effect of photovoltaic grid connected inverters, an automated control method for steady-state error of photovoltaic grid connected inverters considering three-phase voltage imbalance was designed. Using a data acquisition system to smooth the operating data of the inverter, constructing a steady-state function for photovoltaic grid connected inverters, determining two control objectives: steady-state error of output voltage and steady-state error of transmission current. By calculating control parameters and predicting the results of the controller, an automatic controller for steady-state error of the inverter is designed, and corresponding control algorithms are generated. Utilize control algorithms to adjust control parameters and achieve automated control of inverter steady-state errors. Experimental tests have found that the method designed in this article has high robustness, and the steady-state error value decreases, resulting in better control performance. |
| keywords:three-phase voltage imbalance photovoltaic grid connection inverter steady-state error automation control control methods |
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