Abstract：The large penetration of wind farm into interconnected power systems may cause the severe problem of tie-line power oscillations. Large DFIG-based wind power generation system can control active and reactive power independently, and can add control signals to the active power control loop to adjust the active power output of the wind power system, so as to damp system power oscillation. This paper utilises the wide-area measurement data and selects suitable feedback signals for implementing a quick wide-area time-delay damping control against potential power oscillations. The linearised model of power systems is established taking the unavoidable transmission time delay of the wide-area measurement signals into consideration. The paper obtains the standard time-delay robust control method of the linearised model based free-weighting matrices, and the formula can be solved by linear matrix inequalities (LMIs). On the basis of the method, the papar designs a wide-area time-delay state feed back controller.The controller parameters are optimised by the proposed LMI-iterated solution algorithm. Combined with the theory of state observation, a new wide-area time-delay output feedback controller is obtained. A simulation model for a inter-area power system with wind farm integrated is built based on the four-machine two-area benchmark test system. The results of time-domain simulation show that the derived wide-area time-delay damping controller can damp inter-area oscillation efficiently.
张子泳, 胡志坚, 刘宇凯. 计及广域信号时变时滞影响的大型双馈风力发电系统附加鲁棒阻尼控制[J]. 电工技术学报, 2014, 29(4): 246-255.
Zhang Ziyong, Hu Zhijian, Liu Yukai. Additional Robust Damping Control of Large Scale DFIG-Based Wind Power Generation System with Wide-Area Signals' Time-Varying Delay Influence. Transactions of China Electrotechnical Society, 2014, 29(4): 246-255.
[1] 孙元章, 吴俊, 李国杰, 等. 风力发电对电力系统的影响(英文)[J]. 电网技术, 2007, 31(13): 55-62. Sun Yuanzhang, Wu Jun, Li Guojie. Influence research of wind power generation on power systems[J]. Power System Technology, 2007, 31(13): 55-62. [2] 关宏亮. 大规模风电场接入电力系统的小干扰稳定性研究[D]. 北京: 华北电力大学, 2008. [3] 杨黎晖, 马西奎. 双馈风电机组对电力系统低频振荡特性的影响[J]. 中国电机工程学报, 2011, 31(10): 19-25. Yang L, Ma X S O E. Impact of doubly fed induction generator wind turbine on power system low- frequency oscillation characteristic[J]. Proceedings of the CSEE, 2011, 31(10): 19-25. [4] Miao Zhixin, Fan Lingling, Osborn D. Control of DFIG based wind generation to improve inter-area oscillation damping[C]. 2008 IEEE Power and Energy Society General Meeting-Conversion and Delivery of Electrical Energy in the 21st Century, Pittsburgh, PA, 2008: 1-7. [5] Tsourakis G, Nomikos B M, Vournas C D. Contribution of doubly fed wind generators to oscillation damping [J]. IEEE Transactions on Energy Conversion, 2009, 24(3): 783-791. [6] Miao Z, Fan L, Osborn D, et al. Control of DFIG-based wind generation to improve inter-area oscillation damping[J]. IEEE Transactions on Energy Conversion, 2009, 24(2): 415-422 [7] 张子泳, 胡志坚, 李勇汇. 并网型双馈式风力发电系统广域阻尼控制器设计[J]. 高电压技术, 2011(1): 157-163. Zhuanu Ziyong, Hu Zhijian, Li Yonghui. Design of wide-area damping controller of grid-tied wind generation system based DFIG[J]. High Voltage Engineering, 2011, 37(1): 157-163. [8] 张子泳, 胡志坚, 李勇汇, 等. 大型双馈风力发电系统小信号动态建模及附加阻尼控制器设计[J]. 电力系统保护与控制, 2011, 39(18): 127-133. Zhang Ziyong, Hu Zhijian, Li Yonghui, et al. Small signal dynamic modelling and additionaller damping controller designing for large wind generation system based on DFIG[J]. Power System Protection and Control, 2011, 39(18): 127-133. [9] 李辉, 陈宏文, 杨超, 等. 含传输线功率信号的双馈风电场附加阻尼控制策略[J]. 电力系统自动化, 2012(24): 28-33. Li Hui, Chen Hongwen, Yang Chao, et al. Ancillary damping control strategy for wind farms with doubly- fed induction generators using power signals in transmission lines[J]. Automation of Electric Power Systems, 2012(24): 28-33. [10] Aboul-Ela M E. Damping controller design for power system oscillations using global signals[J]. IEEE Transactions on Power Systems, 1996, 11(2): 767-773. [11] Chaudhuri B. Mixed-sensitivity approach to H∞ control of power system oscillations emplo- ying multiple FACTS devices[J]. IEEE Transactions on Power Systems, 2003, 18(3): 1149-1156. [12] 王成山, 石颉. 考虑时间延迟影响的电力系统稳定器设计[J]. 中国电机工程学报, 2007, 27(10): 1-6. Wang Chengshan, Shi Jie. PSS designing with consideration of time delay impact[J]. Proceedings of the CSEE, 2007, 27(10): 1-6. [13] 石颉, 王成山. 考虑广域信息时滞影响的H∞阻尼控制器[J]. 中国电机工程学报, 2008, 28(1): 30-34. Shi Jie, Wang Chengshan. Design of H¥ controller for damping interarea oscillations with consideration of the delay of remote signal[J]. Proceedings of the CSEE, 2008, 28(1): 30-34. [14] 刘高原, 王杰. 交直流联合输电系统的鲁棒稳定控制器设计[J]. 中国电机工程学报, 2008, 28(4): 23-28. Liu Gaoyuan, Wang Jie. Robust stability controller design for AC/DC systems[J]. Proceedings of the CSEE, 2008, 28(4): 23-28. [15] 卢强, 梅生伟, 申铁龙, 等. 非线性H∞励磁控制器的递推设计[J]. 中国科学E辑, 2000, 30(1): 70-78. Lu Qiang, Mei Shengwei, ShenTieLong, et al. Recusive design for nonlinear H∞ excitation controller [J]. Science of China: Series E, 2000, 30(1): 70-78. [16] 于广亮, 张保会, 谢欢, 等. 不健全广域信息下时滞非线性鲁棒综合控制器设计[J]. 中国电机工程学报, 2007, 27(10): 7-13. Yu Guangliang, Zhang Baohui, Xie Huan, et al. Design of a nonlinear robust integrated controller based on incomplete time-delay wide-area measurement information[J]. Proceedings of the CSEE, 2007, 27(10): 7-13. [17] Chilali M, Gahinet P. H&infin design with pole placement constraints: an LMI approach[J]. IEEE Transactions on Automatic Control, 1996, 41(3): 358-367. [18] Silviu-lulian, Niculescu, Keqin Gu. Advances in time-delay system[M]. Berlin: Springer-Verlag, 2004. [19] 苏宏业, 褚健, 等. 不确定时滞系统的鲁棒控制理论[M]. 北京: 科学出版社, 2007. [20] 安海云, 贾宏杰, 余晓丹. 基于LMI理论的时滞电力系统无记忆状态反馈控制器设计[J]. 电力系统自动化, 2010, 34(19): 6-10. An Haiyun, Jia Hongjie, Yu Xiaodan, et al. Design of memoryless state feedback controller for time-delay power system based on LMI theory[J]. Automation of Electric Power Systems, 2010, 34(19): 6-10. [21] 刘豹. 现代控制理论[M]. 北京: 机械工业出版社, 2003. [22] Safonov M G, Chiang R Y, Limebeer D J N. Optimal Hankel model reduction for nonminimal systems[J]. IEEE Transactions on Automatic Control, 1990, 35(4): 496-502. [23] 何勇. 基于自由权矩阵的时滞相关鲁棒稳定与镇定[D]. 长沙: 中南大学, 2004. [24] El Ghaoui L, Oustry F, AitRami M. A cone complementarity linearization algorithm for static output-feedback and related problems[J]. IEEE Transactions on Automatic Control, 1997, 42(8): 1171-1176.
2014, Vol. 29 
