| 一种平滑 DFIG有功功率波动的混合控制策略的研究 |
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| 引用本文： | 马呈霞,田强,王晓兰.一种平滑 DFIG有功功率波动的混合控制策略的研究[J].工业仪表与自动化装置,2013(5):3-7. |
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| 作者姓名： | 马呈霞 田强 王晓兰 |
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| 作者单位： | 1. 甘肃电力科学研究院,兰州,730050
2. 兰州理工大学 电气与信息工程学院,兰州,730050 |
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| 基金项目： | 国家自然科学基金资助项目(50967001)；甘肃省自然科学基金资助项目(1107RJZA272)；国家电网公司科研项目资助 |
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| 摘 要： | 提出了一种在超同步转速范围内平滑双馈异步风力发电机（ DFIG）转子侧有功功率波动的混合控制策略。该策略在传统的双馈异步风力发电机组控制基础上，引入了变桨距和直流侧电压混合控制。变桨距控制用来平滑有功功率波动的低频分量；直流侧电压控制的给定值叠加一个随功率波动变化的偏差电压，用来平滑有功功率波动的高频分量。在Matlab/Simulink平台上，搭建了DFIG构成的风力发电系统，分别采用传统控制策略和文中提出的混合控制策略进行仿真，结果表明，混合控制策略有效平滑了发电机转子侧有功功率的波动。
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| 关 键 词： | 双馈电机 有功功率波动 直流侧电压控制 变桨控制 平滑 |
A coordinated control strategy smoothing power fluctuations of DFIG |
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| MA Chengxia
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TIAN Qiang
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WANG Xiaolan.A coordinated control strategy smoothing power fluctuations of DFIG[J].Industrial Instrumentation & Automation,2013(5):3-7. |
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| Authors: | MA Chengxia TIAN Qiang WANG Xiaolan |
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| Affiliation: | 2 ( 1. Gansu Electric Power Research Institute, Lanzhou 730050, China ; 2. School of Electrical and Information Engineering of Lanzhou University of Technology, Lanzhou 730050, China) |
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| Abstract: | A coordinated control strategy to smooth rotor-side active power of DFIG in the super-syn-chronous speed range is presented in this paper .The coordinated control between variable-pitch control and DC-link voltage control is introduced to conventional strategy .The variable-pitch control is used to smooth the low frequency components of active power fluctuations .The DC-link voltage control is used to smooth the high frequency components of active power fluctuations .The voltage reference is determined by adding a smoothing index coming from high frequency components of output power fluctuations .Simu-lation model of DFIG wind generation system is built in Matlab/Simulink .The results show that the power fluctuations of the generator rotor side are effectively smoothed by the coordinated control strategy . |
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| Keywords: | double-fed induction generator active power fluctuations DC-link voltage control variable-pitch control smooth |
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