同时抑制低频振荡和次同步振荡的多通道广域自适应阻尼控制

曾果; 李兴源; 刘天琪; 赵睿

doi:10.7498/aps.63.228801

摘要

设计了一种自适应控制算法并证明了其正确性. 通过总体最小二乘旋转不变技术辨识出系统降阶模型及相关振荡模态, 利用带通滤波器将不同的振荡模态分解到多个通道, 然后基于所提的自适应算法对每个振荡模态设计了自适应控制器, 减小了各个控制器间的影响. 在电磁暂态程序PSCAD/EMTDC中对向上直流孤岛运行方式进行了仿真验证. 结果表明: 所提控制方法相对传统比例积分微分控制有更好的控制效果; 对于系统发生不同故障时具有鲁棒性. 对于系统信号传输引起的时滞导致的控制器效果变差的问题, 可以通过相位补偿解决.

关键词:

Abstract

A model reference adaptive control scheme is developed based on hyper-stability theory and is proved. Both of reduced order models of the power system and relevant oscillation frequencies are acquired by TLS-ESPRIT algorithm. The band-pass filters (Butterworth) are utilized to decompose oscillation frequencies into different channels and controllers are designed for each oscillation mode based on adaptive control method, thus reducing the influences of the various controllers. Xiangjiaba-Shanghai DC link under island operation condition is simulated using electromagnetic transient program PSCAD/EMTDC to demonstrate proposed control strategy. The results validate that the proposed method is able to suppress low-frequency oscillation and sub-synchronous oscillation simultaneously and the proposed method has better control performance than the traditional PID control. The problem will lead to controller performance deterioration caused signal transmission delay in system and it is resolved by phase compensation.

Keywords:

作者及机构信息

1.
四川大学电气信息学院, 成都 610065;

2.
中国南方电网科学研究院, 广州 510080

基金项目: 国家自然科学基金重点项目(批准号:51037003)和国家高新技术研究发展计划(批准号:2011AA05A119)资助的课题.

Authors and contacts

1.
School of Electrical Engineering and Information, Sichuan University, Chengdu 610065, China;

2.
Electric Power Research Institute, China Southern Power Grid, Guangzhou 510080, China

Funds: Project supported by the National Natural Science Foundation of China (Grant No. 51037003), the National High Technology Research and Development Program of China (Grant No. 2011AA05A119).

参考文献

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[25]	Tripathy P, Srivastava S C, Singh S N 2011 IEEE Trans. Power Syst. 26 719
[26]	Zhang J, Xu Z, Wang F, Chang Y 2007 Automat. Electr. Power Syst. 31 84 (in Chinese) [张静, 徐政, 王峰, 常勇 2007 电力系统自动化 31 84]
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[30]	Silva G J, Datta A, Bhattacharyya S P 2001 Proceedings of the 40th IEEE Conference IEEE Orlando, FL September 7-9, 2001 p4733

施引文献

[1]	Li X Y 2010 HVDC Transmission System (1st Ed.) (Beijing: Science Press) pp1-9 (in Chinese) [李兴源 2010 高压直流输电系统 (第一版) (北京:科学出版社) 第1–9页]
[2]	Zhao R , Li X Y, Liu T Q, Li K 2014 Electr. Power Automat. Equip. 33 1 (in Chinese) [赵睿, 李兴源, 刘天琪, 李宽 2014 电力自动化设备 33 1]
[3]	Song D W, Yang X T, Ding Q L, Ma S Y, Li B Q, Wang Q 2011 Power Syst. Technol. 35 22 (in Chinese) [宋墩文, 杨学涛, 丁巧林, 马世英, 李柏青, 王青 2011 电网技术 35 22]
[4]	Wang H F, Swift F J, Li M 1997 Generation, Transmission and Distribution, IEE Proceedings IET 144 155
[5]	J Y Zhang, Y Z Sun 2005 IEEE/PES Transmission and Distribution Conference & Exhibition Asia and Pacific Dalian, China, July 9-12, 2005 p1
[6]	China Southern Power Grid Power Dispatch Communications Center 2008 China Southern Power Grid Operation Mode in 2008 (in Chinese) [中国南方电网有限公司 2008 中国南方电网2008年运行方式]
[7]	Kunder P 1994 Power System Stability and Control (1st Ed) (New York: McGraw-Hill) pp332-333
[8]	Tang N, Xiao X N, Li W, Gao B F, Zheng R 2011 High Voltage Engineer. 37 1051 (in Chinese) [唐酿, 肖湘宁, 李伟, 高本锋, 郑蕤 2011 高电压技术 37 1051]
[9]	Ni Y X, Wang Y C, Chen S S, Zhang B L 1993 Proc. CSEE 13 62 (in Chinese) [倪以信, 王艳春, 陈寿孙, 张宝霖 1993 中国电机工程学报 13 62]
[10]	Hu N, Li X Y, Li K, Qin B 2014 Acta Phys. Sin. 63 068401 (in Chinese) [胡楠, 李兴源, 李宽, 覃波 2014 63 068401]
[11]	Praveen T, Srivastava S C, Singh S N 2011 IEEE Trans. Power Syst. 26 719
[12]	Li B H, Zhang Y M, Li X Y, Liu T Q, Zhao R 2014 Acta Phys. Sin. 63 098801 (in Chinese) [李保宏, 张英敏, 李兴源, 刘天琪, 赵睿 2014 63 098801]
[13]	Weng H, Xu Z 2013 Electr. Power Syst. Res. 95 38
[14]	Azad S P, Iravani R, Tate J E 2013 Power Systems, IEEE Transactions on 28 3174
[15]	Tong S C, Li Y M 2010 Sci. China: Informat. Sci. 53 307
[16]	Zhou J, Wu X J, Liu Z R 2014 Sci. China: Technol. Sci. 57 905
[17]	Li N, Yuan H Q, Sun H Y, Zhang Q L 2013 Chin. Phys. B 22 030508
[18]	Hu Y H, Zhao S Q, Ma Y F, Huang C S 2004 Electr. Power Automat. Equip. 24 15 (in Chinese) [胡云花, 赵书强, 马燕峰, 黄常抒 2004 电力自动化设备 24 15]
[19]	Zhou K, Doyle J C, Glover K 1996 Robust and Optimal Control (1st Ed) (New Jersey: Prentice Hall) pp233-235
[20]	Liu Y T, Chang K M, Li W Z 2010 Precision Engineering 34 62
[21]	Croft D, Devasia S 1998 J. Guidance, Control, and Dynamics 21 710
[22]	Tripathy P, Srivastava S C, Singh S N 2011 IEEE Trans. Power Syst. 26 719
[23]	Wang X, Li X Y, Wang Y H, Zhao R 2012 Power System Protection and Control 40 121 (in Chinese) [王曦, 李兴源, 王渝红, 赵睿 2012 电力系统保护与控制 40 121]
[24]	Xu X L, Lin T, Zhang F, Zhang Q 2012 Power System Technol. 36 109 (in Chinese) [徐遐龄, 林涛, 张帆, 张强 2012 电网技术 36 109]
[25]	Tripathy P, Srivastava S C, Singh S N 2011 IEEE Trans. Power Syst. 26 719
[26]	Zhang J, Xu Z, Wang F, Chang Y 2007 Automat. Electr. Power Syst. 31 84 (in Chinese) [张静, 徐政, 王峰, 常勇 2007 电力系统自动化 31 84]
[27]	Kharitonov V L, Zhabko A P 2003 Automatica 39 15
[28]	Youcef Toumi K, Ito O 1990 J. Dyn. Syst. Measur. Control 11 133
[29]	Tan W, Marquez H J 2003 Chen J. Process Control 13 203
[30]	Silva G J, Datta A, Bhattacharyya S P 2001 Proceedings of the 40th IEEE Conference IEEE Orlando, FL September 7-9, 2001 p4733

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