双馈风电机组动力学特性与电力系统动态行为的交互影响分析
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摘要
风力发电是目前利用可再生能源最有效方式之一。风电渗透率的不断提高使其对电力系统的影响更加明显,研究其动力学特性与电力系统动态行为的交互影响确保电力系统的稳定运行具有重要意义。首先基于完整的双馈风电机组数学模型,在IEEE 4机2区域系统上,采用特征根分析和时域仿真分析研究了双馈风电机组参数的变化对系统动态特性的影响,分析了调速器参数对风电并网后系统动态响应的影响,并从DFIG并网接入点、并网容量以及联络线传输功率等多方面研究了其与电力系统的交互影响。结果表明:双馈风电机组并网后,调速器的加入可以改善系统的动态响应;适当地增大双馈风电机的定子电阻,有利于系统的稳定;双馈风电机组的并网接入点、联络线传送功率以及出力水平对系统的鲁棒性有不同程度的影响。
Wind power generation is currently one of the most effective ways to utilize renewable energy. The impact of the increasing penetration of wind power on power system is becoming more obvious,thus the study on the interaction between the dynamics characteristics of wind power and the dynamic behavior of power system is of significance to ensuring the stable operation of power system. In this paper,based on the complete model of doubly fed induction generator(DFIG),by employing eigenvalue analysis and time-domain simulation analysis,the influences of parameters of DFIG on the dynamic characteristics of power system are studied with an IEEE 4-machine 2-area system as a numerical example,and the influences of parameters of turbine governor(TG)on the system's dynamic response after the connection of wind power are analyzed;the interaction between DFIG and power system is studied in view of several factors,including the grid connection points and capacity of DFIG,as well as the transmission power of tie line. Results demonstrate that the system's dynamic response can be improved by adding TG after the connection of DFIG;a proper increase in the DFIG's stator resistance is beneficial to the system stability;the grid connection points of DFIG,the transmission power of tie line,and the output level have varying degrees of influence on the robustness of the system.
Wind power generation is currently one of the most effective ways to utilize renewable energy. The impact of the increasing penetration of wind power on power system is becoming more obvious,thus the study on the interaction between the dynamics characteristics of wind power and the dynamic behavior of power system is of significance to ensuring the stable operation of power system. In this paper,based on the complete model of doubly fed induction generator(DFIG),by employing eigenvalue analysis and time-domain simulation analysis,the influences of parameters of DFIG on the dynamic characteristics of power system are studied with an IEEE 4-machine 2-area system as a numerical example,and the influences of parameters of turbine governor(TG)on the system's dynamic response after the connection of wind power are analyzed;the interaction between DFIG and power system is studied in view of several factors,including the grid connection points and capacity of DFIG,as well as the transmission power of tie line. Results demonstrate that the system's dynamic response can be improved by adding TG after the connection of DFIG;a proper increase in the DFIG's stator resistance is beneficial to the system stability;the grid connection points of DFIG,the transmission power of tie line,and the output level have varying degrees of influence on the robustness of the system.
引文
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[15]牟澎涛,赵冬梅,王嘉成(Mu Pengtao,Zhao Dongmei,Wang Jiacheng).高渗透率风电接入对区域电网小信号稳定性的影响(Impact of penetration wind power integration on small signal stability of regional power grid)[J].电力系统自动化(Automation of Electric Power Systems),2016,40(11):137-142.
[16]杨杰,郭昆丽(Yang Jie,Guo Kunli).双馈风电机组并网对电力系统小干扰稳定性分析(Analysis of small disturbance stability of doubly fed induction generator of interconnected power systems)[J].电子技术与软件工程(Electronic Technology&Software Engineering),2016,(1):244-246.
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[18] Aklunatov V. Induction Generators for Wind Power[M].Brenttvood:Multi-science Publishing Co. Ltd,2005.
[19] Wu F,Zhang X P,Ju P. Small signal stability analysis and control of the wind turbine with the direct-drive permanent magnet generator integrated to the grid[J]. Electric Power Systems Research,2009,79(12):1661-1667.
[20] Kund R P. Power System Stability and Control[M]. New York:McGraw-Hill Inc,1994.
[21]和萍,文福拴,薛禹胜,等(He Ping,Wen Fushuan,Xue Yusheng,et al).风电场并网对互联系统小干扰稳定及低频振荡特性的影响(Impacts of wind power integration on small signal stability and low frequency oscillation characteristics of interconnected power systems)[J].电力系统自动化(Automation of Electric Power Systems),2014,38(22):1-10.
[22]李媛媛,邱跃丰(Li Yuanyuan,Qiu Yuefeng).风电机组接入对系统小干扰稳定性的影响研究(Impact of gridconnected wind turbine generators on small signal stability of power grid)[J].电网技术(Power System Technology),2012,36(8):50-55.
[2]尹忠东,朱永强.可再生能源发电技术[M].北京:中国水利水电出版社,2010.
[3] Saifur R,Manisa P.大规模风电接入对美国电力系统运行的影响和平抑策略(Operating impacts and mitigation strategies with large-scale wind power penetration in the United States)[J].电力系统自动化(Automation of Electric Power Systems),2011,35(22):3-11.
[4]朱凌志,陈宁,韩华玲(Zhu Lingzhi,Chen Ning,Han Hualing).风电消纳关键问题及应对措施分析(Key problems and solutions of wind power accommodation)[J].电力系统自动化(Automation of Electric Power Systems),2011,35(22):29-34.
[5]丁明,李宾宾,韩平平(Ding Ming,Li Binbin,Han Pingping).双馈风电机组运行方式对系统电压稳定性的影响(Impacts of operation modes of doubly-fed wind turbine generator on system voltage stability)[J].电网技术(Power System Technology),2010,34(10):26-31.
[6]刘斯伟,李庚银,周明(Liu Siwei,Li Gengyin,Zhou Ming).双馈风电机组对并网电力系统暂态稳定性的影响模式分析(Influence mechanism of doubly fed induction generator on power system transient stability)[J].电网技术(Power System Technology),2016,40(2):471-476.
[7] Iswadi H R,Morrow D J,Best R J. Small signal stability performance of power system during high penetration of wind generation[C]//49th International Universities Power Engineering Conference. Cluj-Napoca,Romania,2014.
[8] Ding N,Lu Z,Qiao Y,et al. Simplified equivalent models of large-scale wind power and their application for smallsignal stability[J]. Journal of Modem Power Systems&Clean Energy,2013,1(1):58-64.
[9] Nguyen M H,Saha T K,Eghbal M. Impact of high level of renewable energy penetration on inter-area oscillation[C]//21th Australasian Universities Power Engineering Conference. Brisbane,Australia,2011.
[10] Quintero J,Vittal V,Heydt G T,et al. The impact of increased penetration of converter control-based generators on power system modes of oscillation[J]. IEEE Trans on Power Systems,2014,29(5):2248-2256.
[11]陈润泽,吴文传,孙宏斌,等(Chen Runze,Wu Wenchuan,Sun Hongbin,et al).双馈风电机组惯量控制对系统小干扰稳定的影响(Impact of inertia control of DFIG wind turbine on system small-signal stability)[J].电力系统自动化(Automation of Electric Power Systems),2014,38(23):6-12.
[12] Gautam D,Vittal V,Harbour T. Impact of increased penetration of DFIG-based wind turbine generators on transient and small signal stability of power systems[J]. IEEE Trans on Power Systems,2009,24(3):1426-1434.
[13]尚伟林,李奇,尹良,等(Shang Weilin,Li Qi,Yin Liang,et al).双馈感应电机实现电网谐波补偿策略(Grid harmonic compensation strategy based on doubly-fed induction generator)[J].电力系统及其自动化学报(Proceedings of the CSU-EPSA),2018,30(7):9-15,58.
[14] Vittal E,O’Malley M,Keane A. Rotor angle stability with high penetrations of wind generation[J]. IEEE Trans on Power Systems,2012,27(1):353-362.
[15]牟澎涛,赵冬梅,王嘉成(Mu Pengtao,Zhao Dongmei,Wang Jiacheng).高渗透率风电接入对区域电网小信号稳定性的影响(Impact of penetration wind power integration on small signal stability of regional power grid)[J].电力系统自动化(Automation of Electric Power Systems),2016,40(11):137-142.
[16]杨杰,郭昆丽(Yang Jie,Guo Kunli).双馈风电机组并网对电力系统小干扰稳定性分析(Analysis of small disturbance stability of doubly fed induction generator of interconnected power systems)[J].电子技术与软件工程(Electronic Technology&Software Engineering),2016,(1):244-246.
[17] Slootweg J G. Wind Power,Modeling and Impact on Power System Dynamics[D]. Netherlands:Technical University of Delft,2003.
[18] Aklunatov V. Induction Generators for Wind Power[M].Brenttvood:Multi-science Publishing Co. Ltd,2005.
[19] Wu F,Zhang X P,Ju P. Small signal stability analysis and control of the wind turbine with the direct-drive permanent magnet generator integrated to the grid[J]. Electric Power Systems Research,2009,79(12):1661-1667.
[20] Kund R P. Power System Stability and Control[M]. New York:McGraw-Hill Inc,1994.
[21]和萍,文福拴,薛禹胜,等(He Ping,Wen Fushuan,Xue Yusheng,et al).风电场并网对互联系统小干扰稳定及低频振荡特性的影响(Impacts of wind power integration on small signal stability and low frequency oscillation characteristics of interconnected power systems)[J].电力系统自动化(Automation of Electric Power Systems),2014,38(22):1-10.
[22]李媛媛,邱跃丰(Li Yuanyuan,Qiu Yuefeng).风电机组接入对系统小干扰稳定性的影响研究(Impact of gridconnected wind turbine generators on small signal stability of power grid)[J].电网技术(Power System Technology),2012,36(8):50-55.