直驱风机直流母线电压控制对系统功率振荡的影响分析及改进方法Influence of DC Bus Voltage Control of Direct-drive PMSG on Power Oscillation and Its Improvement
舒展;熊华强;蔡霞;冯双;陈波;程思萌;陶翔;王克;
摘要(Abstract):
近年来,直驱风电场与交流系统相互作用引发功率振荡的问题引起了国内外学者的广泛关注。文章重点关注并网变流器直流母线电压控制环节,提出了一种增强直驱风机并网系统稳定性的改进控制方法。首先建立了传统直流母线电压控制下直驱风机并网系统的阻抗模型,并解析推导了电压外环控制参数对系统稳定性的影响;在此基础上提出了在电压外环控制系统中引入时变系数的改进控制方法。阻抗分析表明,所提方法可以显著增强系统在振荡频段内的稳定性;通过特征值分析和时域仿真对比了传统电压外环控制方法和所提方法下的系统稳定性,证明了所提方法在不同运行条件下均可以有效改善系统稳定性。
关键词(KeyWords): 直驱风机;直流母线电压控制;功率振荡;稳定性分析
基金项目(Foundation): 国家自然科学基金项目(51807025);; 国网江西省电力有限公司科技项目(521820170022)~~
作者(Author): 舒展;熊华强;蔡霞;冯双;陈波;程思萌;陶翔;王克;
Email:
DOI: 10.13335/j.1000-3673.pst.2019.1803
参考文献(References):
- [1]姜齐荣,王亮,谢小荣.电力电子化电力系统的振荡问题及其抑制措施研究[J].高电压技术,2017,43(4):1057-1066.Jiang Qirong,Wang Liang,Xie Xiaorong.Study on oscillations of power-electronized power system and their mitigation schemes[J]. High Voltage Engineering, 2017, 43(4):1057-1066(inChinese).
- [2]肖湘宁,罗超,廖坤玉.新能源电力系统次同步振荡问题研究综述[J].电工技术学报,2017,32(6):85-97.Xiao Xiangning,Luo Chao,Liao Kunyu.Review of the research on subsynchronous oscillation issues in electric power system with renewable energy sources[J].Transactions of China Electrotechnical Society,2017,32(6):85-97(inChinese).
- [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(inChinese).
- [4] Adams J,Pappu V A,Dixit A.Ercot experience screening for sub-synchronous control interaction in the vicinity of series capacitor banks[C]//Proceedings of the 2012 IEEE Power and Energy Society General Meeting.San Diego,CA,USA:IEEE,2012:1-5.
- [5] Wang L,Xie X,Jiang Q,et al.Investigation of ssr in practical dfig-based wind farms connected to a series-compensated power system[J].IEEE Transactions on Power Systems,2015,30(5):2772-2779.
- [6]谢小荣,刘华坤,贺静波,等.直驱风机风电场与交流电网相互作用引发次同步振荡的机理与特性分析[J].中国电机工程学报,2016,36(9):2366-2372.Xie Xiaorong,Liu Huakun,He Jingbo,et al.Mechanism and characteristics of subsynchronous oscillation caused by the interaction between full-converter wind turbines and AC systems[J].Proceedings of the CSEE,2016,36(9):2366-2372(inChinese).
- [7]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 subsynchronous oscillations in large-scale wind farm integrated system[J].Power System Technology,2017,41(4):1050-1060(inChinese).
- [8] Liu Y,Wang L,Sun H,et al.Characteristics of sub-synchronous interaction among D-PMSG-based wind turbines[J].The Journal of Engineering,2018,2019(16):1434-1438.
- [9]苏田宇,杜文娟,王海风.直驱风电场场网/场内振荡现象及抑制方法[J].电网技术,2019,43(2):417-428.Su Tianyu, Du Wenjuan, Wang Haifeng. Wind-farm-grid/inside-wind-farm oscillation phenomenon in PMSG-based wind farm and its suppression measures[J].Power System Technology,2019,43(2):417-428(inChinese).
- [10]陈宝平,林涛,陈汝斯,等.采用VSC-HVDC并网的直驱风电场次/超同步振荡特性[J].电力系统自动化,2018,42(22):44-51.Chen Baoping,Lin Tao,Chen Rusi,et al.Analysis on characteristics of sub/super-synchronous oscillation caused by grid-connected direct-drive wind farm via VSC-HVDC system[J].Automation of Electric Power System,2018,42(22):44-51(inChinese).
- [11]王赟程,陈新,陈杰,等.基于谐波线性化的三相LCL型并网逆变器正负序阻抗建模分析[J].中国电机工程学报,2016,36(21):5890-5898.Wang Yuncheng, Chen Xin, Chen Jie, et al. Analysis of positive-sequence and negative-sequence impedance modeling of three-phase LCL-type grid-connected inverters based on harmonic linearization[J]. Proceedings of the CSEE, 2016, 36(21):5890-5898(inChinese).
- [12]陈新,王赟程,龚春英,等.采用阻抗分析方法的并网逆变器稳定性研究综述[J].中国电机工程学报,2018,38(7):2082-2094.Chen Xin,Wang Yuncheng,Gong Chunying,et al.Overview of stability research for grid-connected inverters based on impedance analysis method[J].Proceedings of the CSEE,2018,38(7):2082-2094(inChinese).
- [13]李景一,毕天姝,张鹏.基于两输入/输出闭环传函的PMSG网侧变流器次同步频率分量响应特性分析[J].电网技术,2018,42(12):3910-3917.Li Jingyi, Bi Tianshu, Zhang Peng. Analysis of response characteristics of PMSG-GSC controller to subsynchronous frequency component based on TITO closed loop transfer function[J].Power System Technology,2018,42(12):3910-3917(inChinese).
- [14]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(inChinese).
- [15] Sun J. Impedance-based stability criterion for grid-connected inverters[J].IEEE Transactions on Power Electronics,2011,26(11):3075-3078.
- [16]辛焕海,李子恒,董炜,等.三相变流器并网系统的广义阻抗及稳定判据[J].中国电机工程学报,2017,37(5):1277-1293.Xin Huanhai,Li Ziheng,Dong Wei,et al.Generalized-impedance and stability criterion for grid-connected converters[J].Proceedings of the CSEE,2017,37(5):1277-1293(inChinese).
- [17] Nie Z,Shi L,Zhao Y,et al.Low-frequency oscillation analysis of AC/DC system with offshore wind farm integration via MMC-based HVDC[J].The Journal of Engineering,2019,2016(16):1450-6.
- [18] Li Y,Fan L,Miao Z.Wind in weak grids:low-frequency oscillations,subsynchronous oscillations,and torsional interactions[J].IEEE Transactions on Power Systems,2020,35(1):109-118.
- [19]张冲,王伟胜,何国庆,等.基于序阻抗的直驱风电场次同步振荡分析与锁相环参数优化设计[J].中国电机工程学报,2017,37(23):6757-6767.Zhang Chong,Wang Weisheng,He Guoqing,et al.Analysis of sub-synchronous oscillation of full-converter wind farm based on sequence impedance and an optimized design method for PLL parameters[J]. Proceedings of the CSEE, 2017, 37(23):6757-6767(inChinese).
- [20]王晖,李莹,李文锋,等.并网逆变器复合电流环引起次/超同步振荡机理研究[J].电网技术,2017,41(4):1061-1067.Wang Hui,Li Ying,Li Wenfeng,et al.Mechanism research of subsynchronous and supersynchronous oscillations caused by compound current loop of grid-connected inverter[J].Power System Technology,2017,41(4):1061-1067(inChinese).
- [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/sup-synchronous oscillation caused by GSC controller of direct-drive permanent magnetic synchronous generator[J].Power System Technology,2018,42(5):1556-1564(inChinese).
- [22]宋瑞华,郭剑波,李柏青,等.基于输入导纳的直驱风电次同步振荡机理与特性分析[J].中国电机工程学报,2017,37(16):4662-4670.Song Ruihua,Guo Jianbo,Li Baiqing,el al.Mechanism and characteristics of subsynchronous oscillation in direct-drive wind power generation system based on input-admittance analysis[J]. Proceedings of the CSEE, 2017, 37(16):4662-4670(inChinese).
- [23]李绍阶,王玮,唐芬,等.基于阻抗模型的并网变流器低频振荡机理研究[J].电网技术,2018,42(8):2787-2796.Li Shaojie,Wang Wei,Tang Fen,et al.Low frequency oscillation mechanism of grid-connected converter based on impedance model[J]. Power System Technology, 2018, 42(8):2787-4696(inChinese).
- [24]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(inChinese).
- [25] Liu H,Xie X,He J,et al.Subsynchronous interaction between direct-drive pmsg based wind farms and weak AC networks[J].IEEE Transactions on Power Systems,2017,32(6):4708-4720.
- [26] Kunjumuhammed L P,Pal B C,Gupta R,et al.Stability analysis of a PMSG-based large offshore wind farm connected to a VSC-HVDC[J].IEEE Transactions on Energy Conversion,2017,32(3):1166-1176.
- [27] Wen B,Boroyevich D,Mattavelli P,et al.Experimental verification of the generalized Nyquist stability criterion for balanced three-phase ac systems in the presence of constant power loads[C]//Proceedings of the 2012 IEEE Energy Conversion Congress and Exposition(ECCE).Raleigh,NC,2012:3926-3933.