基于定子磁链的双馈风力发电机滑模MRAS转速估计

doi:10.3969/j.issn.0253-2778.2014.07.010

中国科学技术大学学报 ›› 2014, Vol. 44 ›› Issue (7): 605-611.DOI: 10.3969/j.issn.0253-2778.2014.07.010

基于定子磁链的双馈风力发电机滑模MRAS转速估计

王庆龙，汪增福，杨淑英，谢震，张兴

1.中国科学技术大学信息科学技术学院，安徽合肥230027；2．合肥学院电子信息与电气工程系，安徽合肥 230601； 3. 合肥工业大学电气与自动化工程学院，安徽合肥 230009

收稿日期:2014-01-17 修回日期:2014-04-17 接受日期:2014-04-17 出版日期:2023-05-11 发布日期:2014-04-17
作者简介:王庆龙，男，1968年生，博士/副教授. 研究方向:控制科学与工程、风力发电技术等. E-mail: wqlong@ustc.edu.cn
基金资助:
国家自然科学基金(51107025)，安徽省教育厅自然科学基金重点项目（KJ2014A213）资助.

Stator-flux-based sliding-mode MRAS speed estimation of doubly-fed wind power generator

WANG Qinglong, WANG Zengfu, YANG Shuying, XIE Zhen, ZHANG Xing

1.School of Information Science and technology, University of Science and Technology of China, Hefei 230027, China; 2.Department of Electronics and Electrical Engineering, Hefei University, Hefei 230601, China; 3.Department of Electronics and Electrical Engineering, Hefei University, Hefei 230009, China

Received:2014-01-17 Revised:2014-04-17 Accepted:2014-04-17 Online:2023-05-11 Published:2014-04-17

摘要/Abstract

摘要： 针对双馈风力发电机工作环境恶劣，使用机械传感器进行速度和位置信号检测导致的故障率高、检修不便等问题，提出了一种基于双馈电机定子磁链的滑模MRAS转速估计器.方法是利用双馈电机定子磁链电压模型作为参考模型，利用双馈电机定子磁链电流模型作为自适应模型，利用两模型输出的叉积构造滑模面，并利用小信号模型分析了滑模存在和到达条件.同时，通过引入连续的饱和函数，解决了传统滑模观测器的高频抖动问题.最后，基于Matlab/SimuLink对提出的控制方法性能进行了验证.

关键词: 双馈风力发电机, 滑模MRAS, 无速度传感器, 转速估计, 定子磁链

Abstract: Under the execrable operating environment，the mechanical sensor for detecting the position and speed signals of the doubly-fed wind power generator leads to more faults and inconvenient maintenance. To solve the problem, a stator flux-based sliding-mode model reference adaptive system (MRAS) speed estimator was proposed. In the proposed sliding-mode MRAS estimator, the stator flux voltage model of the doubly-fed wind power generator was used to obtain the reference model and its current model as the adaptive model, and a slide-mode surface was designed according to the two model output cross product， and the reaching conditions for the sliding mode were analyzed by using the small-signal model. Meanwhile the continuous saturation function is introduced to overcome the high frequency chattering problem. And the performances of the proposed control method were tested in Matlab/SimuLink.

Key words: doubly-fed wind power generator, sliding-mode MRAS, speed-sensorless, speed estimation, stator flux

中图分类号:

TM315

王庆龙，汪增福，杨淑英，谢震，张兴. 基于定子磁链的双馈风力发电机滑模MRAS转速估计[J]. 中国科学技术大学学报, 2014, 44(7): 605-611.

WANG Qinglong, WANG Zengfu, YANG Shuying, XIE Zhen, ZHANG Xing. Stator-flux-based sliding-mode MRAS speed estimation of doubly-fed wind power generator[J]. Journal of University of Science and Technology of China, 2014, 44(7): 605-611.

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基于定子磁链的双馈风力发电机滑模MRAS转速估计

Stator-flux-based sliding-mode MRAS speed estimation of doubly-fed wind power generator

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