双馈风电机组中频谐波电流建模与分析

LI Qing

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双馈风电机组中频谐波电流建模与分析

更新时间：2025-08-13

- 双馈风电机组中频谐波电流建模与分析
- Automation of Electric Power Systems Vol. 42, Issue 18, Pages: 41-47(2018)
- 作者机构：
  
  新能源与储能运行控制国家重点实验室(中国电力科学研究院有限公司),北京市,100192
- 作者简介：
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- DOI：
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- Published：2018
- 稿件说明：
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LI Qing. [J]. Automation of electric power systems, 2018, 42(18): 41-47.
DOI：

LI Qing. [J]. Automation of electric power systems, 2018, 42(18): 41-47. DOI：

摘要

随着风电产业的快速发展与电力电子设备容量的不断提升，双馈风电机组得到了更多应用与装备，其引起的中频段(100~1 000 Hz)谐波问题不容忽视。为准确反映双馈风电机组电机内部及其与电网之间谐波的相互影响，需建立可评估双馈风电机组定子侧输出中频谐波电流的等效谐波模型。采用典型矢量控制的双馈风电机组为研究对象，研究了电网背景谐波、脉宽调制死区对双馈风电机组定子侧中频谐波电流的影响机理，建立了包含电网背景谐波、脉宽调制死区并可评估双馈风电机组定子侧中频电流的数学模型。最后，通过3.0 MW双馈风电机组的仿真结果、计算结果和现场测试数据的对比，验证了所建立的双馈风电机组谐波模型的准确性。

Abstract

With the rapid development of wind power industry and the continuous growth of capacity of power electronic devices

the middle-frequency band(MFB)harmonics problem that results from the widespread usage of doubly-fed induction generator(DFIG)based wind turbines has become much outstanding. To precisely reflect the harmonic interactions between DFIGs and a power grid

the equivalent harmonic model that can be used to evaluate the MFB harmonic current of DFIG needs to be developed. Based on the typical vector-controlled DFIG

the mechanism of influence of power grid background harmonics and pulse width modulation(PWM)dead time on the stator-side MFB current of DFIG is studied. A mathematical model that can be used to assess the stator side MFB current of DFIG is also developed with consideration of power grid background harmonics and PWM dead time. The accuracy of the proposed equivalent harmonic model of DFIG is verified by comparative analysis of simulation results

calculation results and field test data of a 3. 0 MW DFIG.

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