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直驱永磁型风电系统的小扰动稳定性分析

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成果类型:
期刊论文
论文标题(英文):
Small Signal Stability Analysis of Directly Driven Permanent Magnet Wind Power System
作者:
李军军;吴政球;谭勋琼
作者机构:
[李军军; 吴政球; 谭勋琼] 湖南大学电气与信息工程学院
湖南工业大学电气与信息工程学院
语种:
中文
关键词:
永磁同步机;PWM变换器;小扰动稳定;最大功率点跟踪
关键词(英文):
permanent magnet synchronous generator(PMSG);PWM converter;small signal stability;maxi-mum power point tracking
期刊:
电力系统及其自动化学报
期刊(英文):
Proceedings of the Chinese Society of Universities for Electric Power System and its Automation
ISSN:
1003-8930
年:
2012
卷:
24
期:
5
页码:
49-57
基金类别:
国家自然科学基金资助项目(51077046);
机构署名:
本校为其他机构
院系归属:
电气与信息工程学院
摘要:
建立了基于双PWM变换器的直驱永磁型风电系统的小扰动稳定性分析数学模型,研究了风电系统并网后参数变化对电力系统稳定性的影响,得到了一些有意义的结论;为保证风电系统最大功率输出,风力机采用了最大功率点跟踪控制策略;研究了机侧和网侧变换器控制结构;利用Matlab建模仿真,对系统在不同参数条件下进行了时域分析。仿真结果表明,不同的参数条件下,系统具有较好的小扰动稳定性,验证了理论分析的正确性,为直驱永磁型风电系统安全稳定地并网运行提供了可借鉴的理论依据。
摘要(英文):
Small signal stability mathematical model of directly driven permanent magnet wind power system based on dual PWM converters was established, and the effect on power system stability from parameter variations was researched after wind power system was connected to gird. Some meaningful conclusions were obtained. Maximum power point tracking scheme was applied to wind turbine, and maximum power output was realized in wind power system. Machine side and grid side converters' control structure were studied; then a simulation model was built by Matlab. Time domain analysis were performed in different parameters conditions. Results show system keeps good small signal stability in different parameters conditions, theory analysis correctness was proved, which provides useful theory reference for safe and stable connected operation of direct-driven wind power system.

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