| 基于LCL滤波器的双馈风电网侧变换器不同控制结构性能研究 |
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| 引用本文： | 张宪平,李亚西,许洪华.基于LCL滤波器的双馈风电网侧变换器不同控制结构性能研究[J].变流技术与电力牵引,2009(1):25-30. |
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| 作者姓名： | 张宪平 李亚西 许洪华 |
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| 作者单位： | 中国科学院电工研究所;中国科学院研究生院; |
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| 基金项目： | 国家高技术研究发展计划(863计划)子项目(2003AA5l2022.2) |
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| 摘 要： | 为分析基于LCL滤波器的双馈风电网侧变换器在不同电流反馈控制结构情况下的工作性能，采取PI控制器对网侧变换器网侧电流反馈控制结构和变换器侧电流反馈控制结构的电流闭环根轨迹进行分析，对其在理想电网无阻尼电阻和有阻尼电阻、非理想电网无阻尼电阻3种情况下的特性进行了比较。分析及仿真结果表明变换器侧电流反馈控制结构控制算法相对较复杂，但是系统稳定性好，电网电流的谐波畸变率较低；而电网侧电流反馈控制结构较易实现网侧单位功率因数控制，但稳定性较差。
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| 关 键 词： | LCL滤波器 网侧电流反馈 变换器侧电流反馈 网侧变换器 |
Research on Performance of Grid-side Converter with LCL Filter for Doubly-fed Wind Power System Using Different Current Control Structures |
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| ZHANG Xian-ping,LI Ya-xi,XU Hong-hua.Research on Performance of Grid-side Converter with LCL Filter for Doubly-fed Wind Power System Using Different Current Control Structures[J].Converter Technology & Electric Traction,2009(1):25-30. |
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| Authors: | ZHANG Xian-ping LI Ya-xi XU Hong-hua |
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| Institution: | 1.Institute of Electrical Engineering;CAS;Beijing 100190;China;2.Graduate University of CAS;China |
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| Abstract: | To analyze performance of grid-side converter with LCL filter for doubly-fed wind power system under different current control structures,root locus of closed current loop with grid-side current feedback or converter-side current control structure has been separately analyzed.It compares performances of different current control structures,presents their performances under cases for ideal grid without filter damping,non-ideal grid without filter damping and ideal grid with filter damping.Analysis and simula... |
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| Keywords: | LCL filter grid-side current feedback converter-side current feedback grid-side converter |
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