基于阻抗模型闭环极点的双馈风电系统次同步振荡稳定性分析Stability Analysis of Subsynchronous Oscillation in DFIG-based Wind Power System Based on Closed-loop Poles of Impedance Model
唐冰婕;迟永宁;田新首;李琰;
摘要(Abstract):
近年来,电网的运行中发生了多起由风电并网引发的新型次同步振荡事故,其机理和振荡的影响因素错综复杂。基于频域阻抗模型的阻抗分析法是研究该问题的有效方法,基于考虑电力电子变换器和锁相环动态过程的双馈风电机组阻抗模型,提出了适用于系统次同步振荡稳定性分析的闭环极点稳定性判据,与目前广泛使用的等效电路阻尼稳定性判据进行对比。并将所提判据与灵敏度分析相结合,建立了闭环极点相对灵敏度,研究了关键参数对于系统次同步振荡特性的影响。最后通过时域仿真验证了所提判据与灵敏度在系统次同步振荡分析中的有效性与准确性。
关键词(KeyWords): 双馈风电机组;次同步振荡;阻抗模型;闭环极点;灵敏度分析
基金项目(Foundation): 国家自然科学基金项目(51577174)~~
作者(Author): 唐冰婕;迟永宁;田新首;李琰;
Email:
DOI: 10.13335/j.1000-3673.pst.2019.1337
参考文献(References):
- [1] Lawrence C,Gross J P.Sub-synchronous grid conditions:new event,new problem, and new solutions[C]//Western Protective Relay Conference,Spokane Washington,USA,2010:1-19.
- [2] Narendra K,Fedirchuk D,Midence R,et al.New microprocessor based relay to monitor and protect power systems against subharmonics[C]//IEEE Electrical Power&Energy Conference,Winnipeg,Canada,2011:438-443.
- [3]李明节,于钊,许涛,等.新能源并网系统引发的复杂振荡问题及其对策研究[J].电网技术,2017,41(4):1035-1042.Li Mingjie,Yu Zhao,Xu Tao,et al.Study of complex oscillation caused by renewable energy integration and its solution[J].Power System Technology,2017,41(4):1035-1042(in Chinese).
- [4]迟永宁,田新首,汤海雁,等.双馈风电机组与静止无功发生器交互作用原理及系统振荡特性研究[J].电网技术,2017,41(2):486-492.Chi Yongning,Tian Xinshou,Tang Haiyan,et al.Interactions between DFIGs and SVG and oscillation characteristics of power grid connected wind turbines[J].Power System Technology,2017,41(2):486-492(in Chinese).
- [5]吕敬,董鹏,施刚,等.大型双馈风电场经MMC-HVDC并网的次同步振荡及其抑制[J].中国电机工程学报,2015,35(19):4852-4860.LüJing,Dong Peng,Shi Gang,et al.Subsynchronous oscillation and its mitigation of MMC-Based HVDC with large doubly-fed induction generator-based wind farm integration[J].Proceedings of the CSEE,2015,35(19):4852-4860(in Chinese).
- [6]王伟胜,张冲,何国庆,等.大规模风电场并网系统次同步振荡研究综述[J].电网技术,2017,41(4):1050-1060.Wang Weisheng,Zhang Chong,He Guoqing,et al.Overview of research on sub-synchronous oscillations in large-scale wind farm integrated system[J].Power System Technology,2017,41(4):1050-1060(in Chinese).
- [7] Ostadi A,Yazdani A,Varma R K.Modeling and stability analysis of a DFIG-based wind-power generator interfaced with a seriescompensated line[J].IEEE Transactions on Power Delivery,2009,24(3):1504-1514.
- [8]吴熙,关雅静,宁威,等.双馈风机转子侧变换器参数对次同步振荡的交互影响机理及其应用研究[J].电网技术,2018,42(8):2536-2543.Wu Xi,Guan Yajing,Ning Wei,et al.Mechanism of interactive effect of RSC parameters in DFIG on SSO and its application[J].Power System Technology,2018,42(8):2536-2543(in Chinese).
- [9] Xie H, Li B, Heyman C, et al. Subsynchronous resonance characteristics in presence of doubly-fed induction generator and series compensation and mitigation of subsynchronous resonance by proper control of series capacitor[J]. IET Renewable Power Generation,2014,8(4):411-421.
- [10] Sun J.Impedance-based stability criterion for grid-connected inverters[J].IEEE Transactions on Power Electronics,2011,26(11):3075-3078.
- [11] Cespedes M, Sun J. Impedance modeling and analysis of grid-connected voltage-source converters[J].IEEE Transactions on Power Electronics,2013,29(3):1254-1261.
- [12] Miao Z. Impedance-model-based SSR analysis for type 3 wind generator and series-compensated network[J].IEEE Transactions on Energy Conversion,2012,27(4):984-991.
- [13]廖坤玉,陶顺,姚黎婷,等.考虑励磁的DFIG静止坐标系输入阻抗的频域建模与时变特性研究[J].中国电机工程学报,2018,38(16):4886-4897.Liao Kunyu,Tao Shun,Yao Liting,et al.Study on frequency-domain modeling and time-varying characteristics of DFIG input impedance with excitation under static reference frame[J].Proceedings of the CSEE,2018,38(16):4886-4897(in Chinese).
- [14] Liu H,Xie X,Gao X,et al.Stability analysis of SSR in multiple wind farms connected to series-compensated systems using impedance network model[J].IEEE Transactions on Power Systems,2018,33(3):3118-3128.
- [15] Liu H,Xie X,Zhang C,et al.Quantitative SSR analysis of series-compensated DFIG-based wind farms using aggregated RLC circuit model[J].IEEE Transactions on Power Systems,2017,32(1):474-483.
- [16]刘华坤,谢小荣,何国庆,等.新能源发电并网系统的同步参考坐标系阻抗模型及其稳定性判别方法[J].中国电机工程学报,2017,37(14):4002-4007.Liu Huakun,Xie Xiaorong,He Guoqing,et al.Synchronous reference frame based impedance model and stability criterion for grid-connected renewable energy generation systems[J].Proceedings of the CSEE,2017,37(14):4002-4007(in Chinese).
- [17] Vieto I,Sun J.Small-signal impedance modelling of type-III wind turbine[C]//IEEE Power&Energy Society General Meeting,Denver,USA,2015:1-5.
- [18]张明远,肖仕武,田恬,等.基于阻抗灵敏度的直驱风电场并网次同步振荡影响因素及参数调整分析[J].电网技术,2018,42(9):2768-2777.Zhang Mingyuan,Xiao Shiwu,Tian Tian,et al.Analysis of SSO influencing factors and parameter adjustment for grid-connected full-Converter wind farm based on impedance sensitivity[J].Power System Technology,2018,42(9):2768-2777(in Chinese).
- [19]王立新,程林,孙元章,等.双馈风电机组附加控制对轴系振荡影响的评估方法[J].电力系统自动化,2015,39(5):34-40.Wang Lixin,Cheng Lin,Sun Yuanzhang,et al.A method for evaluating influence of ancillary control on torsional oscillations of DFIG-based wind turbines[J]. Automation of Electric Power Systems,2015,39(5):34-40(in Chinese).
- [20]薛安成,吴雨,王子哲,等.次同步扰动下的双馈风机系统多频率响应分析[J].电网技术,2018,42(6):1804-1810.Xue Ancheng,Wu Yu,Wang Zizhe,et al.Analysis of frequency response of DFIG system under subsynchronous disturbance[J].Power System Technology,2018,42(6):1804-1810(in Chinese).
- [21]徐衍会,曹宇平.直驱风机网侧换流器引发次/超同步振荡机理研究[J].电网技术,2018,42(5):1556-1564.Xu Yanhui, Cao Yuping. Research on mechanism of sub/supsynchronous oscillation caused by GSC controller of direct-drive permanent magnetic synchronous generator[J]. Power System Technology,2018,42(5):1556-1564(in Chinese).