|Table of Contents|

Double-layer power distribution strategy for primary frequencymodulation in wind farms considering unit stability constraints(PDF)


Research Field:
Publishing date:


Double-layer power distribution strategy for primary frequencymodulation in wind farms considering unit stability constraints
Zhang Tianhai1Yu Guoqiang1Xu Chang2Hu Zunmin1Zhang Junfang2
1.Jiangsu Frontier Electric Technology Co.,Ltd.,Nanjing 211102,China; 2.School of Automation,Nanjing University of Science and Technology,Nanjing 210094,China
units stability constraints wind farms primary frequency regulation active power distribution releasing kinetic energy real-time correction
In order to improve the stability and reliability of the wind farm participating in the primary frequency regulation of power grids,a double-layer power distribution strategy of the wind farm considering the stability constraints of the units is proposed. The influence of the continuous reduction of wind speed on the stable operation of low wind speed units is analyzed during the period of frequency regulation in combination with the distribution of the stability region of the wind turbine units. According to the released kinetic energy of each wind turbine,the optimal allocation of the power command of the wind turbine in the wind farm is realized by taking the optimization objectives as the minimum output error of the wind farm,the minimum number of units participating in the frequency regulation and the minimum number of control mode switching. At the same time,the power command is corrected in real time by collecting the rotation speed of each unit. Different distribution strategies are simulated and compared under the turbulent wind speed. The results show that the proposed method can effectively avoid the wind turbine in the low wind speed section from losing its stability due to the excessive release of kinetic energy.


[1] Xue Yingcheng,Tai Nengling. Review of contribution to frequency control through variable speed wind turbine[J]. Renewable Energy,2011,36(6):1671-1677.
[2]刘巨,姚伟,文劲宇,等. 大规模风电参与系统频率调整的技术展望[J]. 电网技术,2014,38(3):638-646.
Liu Ju,Yao Wei,Wen Jinyu,et al. Technical prospect of large-scale wind power participating in system frequency adjustment[J]. Grid Technology,2014,38(3):638-646.
[3]郑重,杨振勇,李卫华. 风电与火电机组的一次调频技术分析及比较[J]. 电力自动化设备,2017,37(12):92-101.
Zheng Zhong,Yang Zhenyong,Li Weihua. Analysis and comparison of primary frequency modulation technology between wind power and thermal power units[J]. Power Automation Equipment,2017,37(12):92-101.
[4]Wu Ziping,Gao Wenzhong,Gao Tianqi,et al. State-of-the-art review on frequency response of wind power plants in power systems[J]. Journal of Modern Power Systems and Clean Energy,2018,6(1):1-16.
[5]范冠男,刘吉臻,孟洪民,等. 电网限负荷条件下风电场一次调频策略[J]. 电网技术,2016,40(7):2030-2037.
Fan Guannan,Liu Jizhen,Meng Hongmin,et al. Primary frequency modulation strategy of wind power plant under load limitation[J]. Grid Technology,2016,40(7):2030-2037.
[6]钟诚,周顺康,严干贵. 基于自适应系数风电场一次频率控制策略研究[J]. 太阳能学报,2018,39(10):2908-2917.
Zhong Cheng,Zhou Shunkang,Yan Gangui. Research on primary frequency regulation strategy of wind farm based on adaptive coefficients[J]. Acta Energiae Solaris Sinica,2018,39(10):2908-2917.
[7]刘吉臻,姚琦,柳玉,等. 风火联合调度的风电场一次调频控制策略研究[J]. 中国电机工程学报,2017,37(12):3462-3469.
Liu Jizheng,Yao Qi,Liu Yu,et al. Study on the primary frequency modulation control strategy of wind power plant for combined wind-fire dispatching[J]. Chinese Journal of Electrical Engineering,2017,37(12):3462-3469.
[8]Ma Shaokang,Geng Hua,Yang Geng,et al. Clustering-based coordinated control of large-scale wind farm for power system frequency support[J]. IEEE Transactions on Sustainable Energy,2018,9(4):1555-1564.
[9]王瑞明,徐浩,秦世耀,等. 风电场一次调频分层协调控制研究与应用[J]. 电力系统保护与控制,2019,14(47):50-58.
Wang Ruiming,Xu Hao,Qin Shiyao,et al. Research and application of hierarchical coordinated control of primary FM in wind farms[J]. Power System Protection and Control,2019,14(47):50-58.
[10]Buckspan A,Aho J,Pao L,et al. Combining droop curve concepts with control systems for wind turbine active power control[C]//2012 IEEE Symposium on Power Electronics and Machines for Wind Applications. Denver,Colorado,USA:IEEE,2012:1-8.
[11]万天虎,李华,唐浩,等. 基于全场控制的风电场一次调频控制方式及其工程化应用[J]. 智慧电力,2019,47(1):41-46.
Wan Tianhu,Li Hua,Tang Hao,et al. Primary frequency regulation control method for wind farm and its engineering application based on full-field control[J]. Smart Power,2019,47(1):41-46.
[12]Chang-Chien L R,Yin Y C. Strategies for operating wind power in a similar manner of conventional power plant[J]. IEEE Transactions on Energy Conversion,2009,24(4):926-934.
[13]王琦,陈小虎,纪延超,等. 变速恒频无刷双馈风电机组的并网研究[J]. 南京理工大学学报,2008,32(5):575-580.
Wang Qi,Chen Xiaohu,Ji Yanchao,et al. VSCF brushless doubly-fed wind power generation system connected to grid[J]. Journal of Nanjing University of Science and Technology,2008,32(5):575-580.
[14]陈载宇,沈春,殷明慧,等. 面向AGC的变速变桨风电机组有功功率控制策略[J]. 电力工程技术,2017,36(1):9-14.
Chen Zaiyu,Shen Chun,Yin Minghui,et al. Review of active power control strategy for variable-speed variable-pitch wind turbine participating in AGC[J]. Electric Power Engineering Technology,2017,36(1):9-14.
[15]沈春. 多时间尺度下考虑机组变桨动作优化的风电场有功控制系统研究[D]. 南京:南京理工大学自动化学院,2017.
[16]Anderson P M,Mirheydar M. A low-order system frequency response model[J]. IEEE Transactions on Power Systems,1990,5(3):720-729.


Last Update: 2020-12-30