双馈感应风力发电机低电压穿越控制策略的理论分析与实验研究

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摘要分析了电网对称及非对称故障时, 双馈感应风力发电机定子磁链的动态过程、电网故障过程中发电机定子磁链对转子的影响。在此基础上, 分析了单靠改进转子变换器控制策略实现发电机低电压穿越的条件, 提出一种利用软硬件结合的方法实现低电压穿越的控制策略, 在电网严重故障时限制了双馈感应发电机定、转子电流, 保护了双馈发电机励磁变换器, 实现了快速地向电网提供功率支持。建立了双馈感应发电机低电压穿越控制模型和3kW双馈感应发电机励磁变换器低电压穿越控制实验系统。实验结果表明, 本文提出的双馈感应发电机低电压穿越控制策略动态响应快、方法行之有效。

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	蔚兰
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关键词 ：双馈感应风力发电机, 低电压穿越, 电网故障, 转子变换器

Abstract：Based on an analysis of DFIG stator flux transient period during symmetric and asymmetric grid fault, its influence on DFIG rotor, the LVRT limiting condition using rotor-side converter (RSC) control strategy to achieve low voltage ride-through(LVRT) is found. A DFIG LVRT method combining the improved control strategy with hardware protect is studied when the limiting condition is not met. The method limits the stator’s and rotor’s over current, protects the rotor converter and provides power to the grid quickly during serious grid fault. A 3kW DFIG LVRT control experimental system is established. The experimental results prove that the LVRT control method of DFIG is effective.

Key words： Doubly fed induction generator(DFIG) low voltage ride through(LVRT) grid fault rotor side converter

收稿日期: 2010-11-02 出版日期: 2014-03-07

PACS:

TM614

基金资助:江苏省高校自然科学研究资助项目(10KJD480004)和上海市科委2010年度部分地方院校能力建设专项(10160501700)资助项目

作者简介: 蔚兰女, 1980年生, 博士研究生, 讲师, 研究方向为电力电子变换及风力发电。陈宇晨男, 1957年生, 教授, 博士生导师, 研究方向为智能电网与节能减排。

引用本文:

蔚兰, 陈宇晨, 陈国呈, 吴国祥. 双馈感应风力发电机低电压穿越控制策略的理论分析与实验研究[J]. 电工技术学报, 2011, 26(7): 30-36. Yu Lan, Chen Yuchen, Chen Guocheng, Wu Guoxiang. A Low Voltage Ride-Through Control Strategy of Doubly Fed Induction Generator. Transactions of China Electrotechnical Society, 2011, 26(7): 30-36.

链接本文:

http://dgjsxb.ces-transaction.com/CN/Y2011/V26/I7/30

[1] 国家电网. 国家电网公司风电场接入电网技术规定. 中国风能技术中心, 2009.
[2] 向大为, 杨顺昌, 冉立. 电网对称故障时双馈感应发电机不脱网运行的励磁控制策略[J]. 中国电机工程学报, 2006, 164-170.
Xiang Dawei, Yang Shunchang, Ran Li. Ride-through control of a doubly fed induction generator for symmetrical grid fault[J]. Proceedings of the CSEE, 2006, 26(3): 164-170.
[3] Morren J, Sjoerd W H de Haan. Ride through of wind turbines with doubly-fed induction generator during a voltage dip[J]. IEEE Transactions on Energy Conversion, 2005, 20(1): 435-441.
[4] 张学广, 徐殿国, 李伟伟. 电网对称故障下基于active crowbar双馈发电机控制[J]. 电机与控制学报, 2009, 13(1): 99-103.
Zhang Xueguang, Xu Dianguo, Li Weiwei. Research on control of DFIG with active crowbar under symmetry voltage fault condition[J]. Electric Machines and Control, 2008, 12(5): 99-103.
[5] Flannery P, Venkataramanan G. Evaluation of voltage sag ride-through of a doubly fed induction generator wind turbine with series grid side converter[C]. Proc. of the 38th Annual Power Electronics Specialists Conference, 2007: 1839-1845.
[6] 胡家兵, 孙丹, 贺益康, 等. 电网电压骤降故障下双馈风力发电机建模与控制[J]. 电力系统自动化, 2006, 30(8): 21-26.
Hu Jiabing, Sun Dan, He Yikang, et al. Modeling and Control of DFIG wind energy generator system under grid voltage dip[J]. Automation of Electric Power System, 2006, 30(8): 21-26.
[7] Jesus Lopez, Eugenio Gubia, Pablo Sanchis. Dynamic behavior of the doubly fed induction generator during three-phase voltage dips[J]. IEEE Transaction on Energy Conversion, 2007, 22(3): 709-717.
[8] Jesus Lopez, Eugenio Gubia, Pablo Sanchis. Wind turbines based on doubly fed induction generator under asymmetrical voltage dips[J]. IEEE Transaction on Energy Conversion, 2008, 23(1): 321-329.
[9] 陈伯时. 电力拖动自动控制系统[M]. 北京: 机械工业出版社, 2007.
[10] Jesus Lopez, Eugenio Gubia. Ride through of wind turbines with doubly fed induction generator under symmetrical voltage dips[J]. IEEE Transaction on Industrial Electronics, 2009, 56(10): 4246-4254.