| 基于LCL滤波器的并网逆变器PI与重复控制 |
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| 引用本文： | 孙运全,钟剑飞,盛吉.基于LCL滤波器的并网逆变器PI与重复控制[J].低压电器,2012(5):29-33. |
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| 作者姓名： | 孙运全 钟剑飞 盛吉 |
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| 作者单位： | 江苏大学电气工程学院 |
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| 摘 要： | 利用坐标变换建立电网电压定向d、q坐标系下的数学模型。在此基础上,对LCL型并网逆变器中LCL滤波的稳定性进行了分析,然后分别在重复控制系统稳定性条件、补偿函数设计方法等方面进行理论分析和推导计算。通过Matlab分别对PI控制、重复控制、PI与重复复合控制进行仿真试验,对理论分析进行验证。试验结果表明,PI与重复控制策略既保持了重复控制良好的稳态特性,也明显改善了系统的动态性能。
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| 关 键 词： | 并网逆变器 LCL滤波器 重复控制 |
PI and Repetitive Control Method Applied to Grid-Connected Inverter with LCL Filter |
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| SUN Yunquan,ZHONG Jianfei,SHENG Ji.PI and Repetitive Control Method Applied to Grid-Connected Inverter with LCL Filter[J].Low Voltage Apparatus,2012(5):29-33. |
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| Authors: | SUN Yunquan ZHONG Jianfei SHENG Ji |
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| Affiliation: | (Department of Electronic and Information Engineering,Jiangsu University, Zhenjiang 212013,China) |
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| Abstract: | Grid voltage orientation on the dq coordinates of the mathematical model was built by using the coordinate.Based on the mathematical model,the stability of grid-connected inverter LCL filter was analyzed,and the repetitive control system stability conditions,the compensation function design methods were analyzed and calculated respectively.Through the Matlab on PI control,repetitive control,and repetitive PI composite control simulation experiment,the theoretical analysis was verified.The test results show that the PI and repetitive control strategy can not only maintain the repetitive control with good steady-state performance,but also significantly improve the system dynamic performance. |
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| Keywords: | grid-connected inverter LCL filter repetitive control |
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