大规模风电集中接入对电力系统暂态功角稳定性的影响(二):影响因素分析
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摘要
该文作为2篇系列文章的第2篇,重点分析双馈风机组成的大规模风电场集中接入电力系统后影响系统暂态功角稳定性的关键因素。在第1篇文章理论分析的基础上,根据扩展等面积定则,讨论了同步机出力调整、风电渗透率和风电场选址等因素起主导作用时,电力系统暂态功角稳定性的变化。然后,从暂态功角稳定的角度出发,总结出风电接入情况下指导电力系统规划和调度的一般规律。最后,通过在双机互联系统上进行的数值仿真验证所提规律的正确性。结果表明,从本质上看,各种因素的变化如果有助于减小前向机群的有功出力,则有助于提高电力系统的暂态功角稳定水平。
As the second part of this two-part paper, this paper focused on the factors that had impacts on the transient angle stability of power systems with large-scale wind power farms consisted of doubly-fed induction generators(DFIG). Based on the theoretic analysis in the first part of this paper, how wind power penetration influenced power system transient angle stability was discussed according to the extended equal area criterion when the factors, such as the synchronous generator dispatch pattern, the siting of wind farms and the wind power penetration rate, played a leading role. Then general rules for power system planning and dispatching considering transient angle stability of power systems with high wind power penetration rate were summarized. Finally, the proposed rules were verified by simulations on a two-machine power system. The results show that in essence, if the variation of the factors helps reduce the active power of synchronous generators of which the power angle swings forward, it is beneficial to transient angle stability of power systems.
As the second part of this two-part paper, this paper focused on the factors that had impacts on the transient angle stability of power systems with large-scale wind power farms consisted of doubly-fed induction generators(DFIG). Based on the theoretic analysis in the first part of this paper, how wind power penetration influenced power system transient angle stability was discussed according to the extended equal area criterion when the factors, such as the synchronous generator dispatch pattern, the siting of wind farms and the wind power penetration rate, played a leading role. Then general rules for power system planning and dispatching considering transient angle stability of power systems with high wind power penetration rate were summarized. Finally, the proposed rules were verified by simulations on a two-machine power system. The results show that in essence, if the variation of the factors helps reduce the active power of synchronous generators of which the power angle swings forward, it is beneficial to transient angle stability of power systems.
引文
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[17]林俐,杨以涵.基于扩展等面积定则的含大规模风电场电力系统暂态稳定性分析[J].电力系统保护与控制,2012,40(12):105-110.Lin Li,Yang Yihan.Analysis of transient stability of power system including large scale wind power based on the extended equal area rule[J].Power System Protection and Control,2012,40(12):105-110(in Chinese).
[18]汤奕,赵丽莉,郭小江.风电比例对风火打捆外送系统功角暂态稳定性影响[J].电力系统自动化,2013,37(20):34-40.Tang Yi,Zhao Lili,Guo Xiaojiang.Impact of wind power penetration on angle transient stability of wind-thermal combined system[J].Automation of Electric Power Systems,2013,37(20):34-40(in Chinese).
[19]郭小江,赵丽莉,汤奕,等.风火打捆交直流外送系统功角暂态稳定研究[J].中国电机工程学报,2013,33(22):19-25.Guo Xiaojiang,Zhao Lili,Tang Yi,et al.Study on angle transient stability for wind-thermal-bundled power transmitted by AC/DC system[J].Proceedings of the CSEE,2013,33(22):19-25(in Chinese).
[20]薛禹胜.EEAC和FASTEST[J].电力系统自动化,1998,22(9):25-30.Xue Yusheng.EEAC and FASTEST[J].Automation of Electric Power Systems,1998,22(9):25-30(in Chinese).
[2]Vittal E,O'Malley M,Keane A.Rotor angle stability with high penetrations of wind generation[J].IEEE Transactions on Power Systems,2012,27(1):353-362.
[3]Meegahapola L,Flynn D.Impact on transient and frequency stability for a power system at very high wind penetration[C]//Proceedings of IEEE Power Engineering Society General Meeting.Minneapolis,America:IEEE,2010.
[4]岳涵,郑宽,于洋,等.大规模双馈风电接入对东北电网稳定性的影响[J].电工电能新技术,2013,32(4):1-6.Yue Han,Zheng Han,Yu Yang,et al.Impact of large-scale DFIG based wind power on stability of Northeast Power Grid[J].Advanced Technology of Electrical Engineering and Energy,2013,32(4):1-6(in Chinese).
[5]盛超,曾杰,郝正航,等.含双馈风电场电力系统暂态稳定性分析[J].电力系统及其自动化学报,2012(01):133-137.Sheng Chao,Zeng Jie,Hao Zhenghang,et al.Analysis of transient stability of power systems with DFIG-based wind farms[J].Proceedings of the CSU-EPSA,2012,24(1):133-137(in Chinese).
[6]郝正航,余贻鑫.双馈风力发电机组对电力系统稳定性影响[J].电力系统保护与控制,2011,39(3):7-11.Hao Zheng-Hang,Yu Yi-Xin.The influence of doubly-fed induction generator on stability of power system[J].Power System Protection and Control,2011,39(3):7-11(in Chinese).
[7]和萍,文福拴,薛禹胜,等.不同类型风电机组对小干扰和暂态稳定性的影响[J].电力系统自动化,2013,37(17):23-29.He Ping,Wen Fushuan,Xue Yusheng,et al.Impacts of different wind power generators on power system small signal and transient stability[J].Automation of Electric Power Systems,2013,37(17):23-29(in Chinese).
[8]Rossi R,Masoum M A S.Application of swing equation and equal area criteria to determine maximum penetration of wind generation in an islanded network[C]//Australasian Universities Power Engineering Conference(AUPEC),Hobart,Australia:Australian Committee for Power Engineering(ACPE),2013.
[9]迟永宁,王伟胜,刘燕华,等.大型风电场对电力系统暂态稳定性的影响[J].电力系统自动化,2006,30(15):10-14.Chi Yongning,Wang Weisheng,Liu Yanhua,et al.Impact of large scale wind farm integration on power system transient stability[J].Automation of Electric Power Systems,2006,30(15):10-14(in Chinese).
[10]石立宝,戴世强,徐政.大规模双馈型风电场并网的系统暂态稳定仿真[J].电力系统及其自动化学报,2009,21(4):1-7.Shi Libao,Dai Shiqiang,Xu Zheng.Transient stability simulation with large scale grid-connected wind farms of DFIG type[J].Proceedings of the CSU-EPSA,2009,21(4):1-7(in Chinese).
[11]Libao S,Shiqiang D,Yixin N,et al.Transient stability of power systems with high penetration of DFIG based wind farms[C]//IEEE Power and Energy Society General Meeting.Calgary,Canada:IEEE,2009.
[12]Meegahapola L,Flynn D,Littler T.Transient stability analysis of a power system with high wind penetration[C]//Universities Power Engineering Conference,Padova,Italy:IEEE,2008.
[13]张明理,徐建源,李佳珏.含高渗透率风电的送端系统电网暂态稳定研究[J].电网技术,2013,37(3):740-745.Zhang Mingli,Xu Jianyuan,Li Jiajue.Research on transient stability of sending power grid containing high proportion of wind power[J].Power System Technology,2013,37(3):740-745(in Chinese).
[14]Samarasinghe C,Ancell G.Effects of large scale wind generation on transient stability of the New Zealand power system[C]//IEEE Power and Energy Society General Meeting-Conversion and Delivery of Electrical Energy in the 21st Century.Pittsburgh,America:IEEE,2008.
[15]Mitra A,Chatterjee D.A sensitivity based approach to assess the impacts of integration of variable speed wind farms on the transient stability of power systems[J].Renewable Energy,2013,60(12):662-671.
[16]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 Transactions on Power Systems,2009,24(3):1426-1434.
[17]林俐,杨以涵.基于扩展等面积定则的含大规模风电场电力系统暂态稳定性分析[J].电力系统保护与控制,2012,40(12):105-110.Lin Li,Yang Yihan.Analysis of transient stability of power system including large scale wind power based on the extended equal area rule[J].Power System Protection and Control,2012,40(12):105-110(in Chinese).
[18]汤奕,赵丽莉,郭小江.风电比例对风火打捆外送系统功角暂态稳定性影响[J].电力系统自动化,2013,37(20):34-40.Tang Yi,Zhao Lili,Guo Xiaojiang.Impact of wind power penetration on angle transient stability of wind-thermal combined system[J].Automation of Electric Power Systems,2013,37(20):34-40(in Chinese).
[19]郭小江,赵丽莉,汤奕,等.风火打捆交直流外送系统功角暂态稳定研究[J].中国电机工程学报,2013,33(22):19-25.Guo Xiaojiang,Zhao Lili,Tang Yi,et al.Study on angle transient stability for wind-thermal-bundled power transmitted by AC/DC system[J].Proceedings of the CSEE,2013,33(22):19-25(in Chinese).
[20]薛禹胜.EEAC和FASTEST[J].电力系统自动化,1998,22(9):25-30.Xue Yusheng.EEAC and FASTEST[J].Automation of Electric Power Systems,1998,22(9):25-30(in Chinese).