[1]周明明,李世华.变速恒频双馈风力发电机并网的复合控制[J].东南大学学报(自然科学版),2012,42(1):55-61.[doi:10.3969/j.issn.1001-0505.2012.01.011]
 Zhou Mingming,Li Shihua.Composite control for cutting-in control of variable speed constant frequency doubly fed wind power generator[J].Journal of Southeast University (Natural Science Edition),2012,42(1):55-61.[doi:10.3969/j.issn.1001-0505.2012.01.011]
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变速恒频双馈风力发电机并网的复合控制()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
42
期数:
2012年第1期
页码:
55-61
栏目:
电气工程
出版日期:
2012-01-18

文章信息/Info

Title:
Composite control for cutting-in control of variable speed constant frequency doubly fed wind power generator
作者:
周明明李世华
(东南大学自动化学院,南京210096)
(东南大学复杂工程系统测量与控制教育部重点实验室,南京 210096)
Author(s):
Zhou MingmingLi Shihua
(School of Automation, Southeast University,Nanjing 210096, China)
(Key Laboratory of Measurement and Control of CSE of Ministry of Education, Southeast University,Nanjing 210096, China)
关键词:
风力发电机双馈发电机空载并网终端滑模控制扩张状态观测器
Keywords:
wind-power generator doubly-fed induction generator no-load cutting-in control terminal sliding mode control extended state observer
分类号:
TM351
DOI:
10.3969/j.issn.1001-0505.2012.01.011
摘要:
针对变速恒频风力发电机并网系统,提出了一种基于终端滑模和扩张状态观测器的转子电流复合控制方法.终端滑模控制不仅可以使得系统状态在有限时间内到达滑模面,而且使得状态在有限时间内沿着滑模面收敛到平衡点,使得发电机转子的d轴电流、q轴电流在有限时间内到达参考值,实现快速收敛和更好的跟踪精度.采用扩张状态观测器观测出系统扰动并进行前馈补偿,这有利于减小终端滑模控制所需要的切换增益而削弱可能的抖振现象,使系统得到更平滑的定子电压波形.仿真结果表明,该复合控制策略对参数摄动和扰动具有更强的鲁棒性,并网系统具有优良的动态性能.
Abstract:
This paper proposes a rotor current composite control method based on the terminal sliding mode control (TSM) and extended state observer (ESO) for cutting-in system of variable speed constant frequency doubly-fed induction generator (DFIG). TSM can make the states not only reach the manifold in finite time, but also converge along the sliding surface to the equilibria in finite time. Thus, the generator d-axis current and the q-axis current are drived to the reference values in finite time, obtaining a faster convergence and a better tracking precision. Moreover, the ESO is introduced to estimate system disturbances. The estimated value is employed for feed forward compensation against disturbances. This helps to reduce the required value of switching gain for the terminal sliding mode control method, which can reduce the chattering phenomenon of system and obtain a smooth stator voltage waveform. The simulation results show that the composite control strategy produces a better robustness against varying parameters and disturbances, the cutting-in control system has a better dynamic performance.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介:周明明(1986—),男,硕士生;李世华(联系人),男,博士,教授,博士生导师,lsh@seu.edu.cn.
基金项目:国家自然科学基金资助项目(61074013)、江苏省自然科学基金资助项目(BK2008295).
引文格式: 周明明,李世华.变速恒频双馈风力发电机并网的复合控制[J].东南大学学报:自然科学版,2012,42(1):55-61.[doi:10.3969/j.issn.1001-0505.2012.01.011]
更新日期/Last Update: 2012-01-20