传统选相元件在风电集中接入系统中的应用研究
|
摘要
通过对高压及超高压线路保护常见的3种选相原理进行分析,得出了其最佳应用条件。通过理论分析、仿真模型与故障录波数据验证的方法分析了风电接入对选相元件的影响。研究表明,风电系统的故障特征使其三序阻抗在幅值和相位上均存在较大差异,导致风电场送出线保护处的各序分流系数在幅值和相位上存在较大差异,使相电流差选相元件与稳态序分量选相元件在风电侧无法可靠选相,而突变量电压原理的选相元件动作正确。最后给出了选相元件在风电系统中的改进建议。
Three common principles of phase selection for high voltage and UHV transmission line protection are analyzed. The adaptability of phase selection is obtained. The effect of wind power accessing upon phase selector is studied by combining the theoretical analysis with the recorded data of actual wind turbines and the simulation model analysis. Research shows that the sequence impedance of wind power system varies greatly in amplitude and phase, which will affect the phase selector based on break-variable of current and steady state sequence component but the phase selector based on fault voltage component is not affected. Finally, the improvement suggestions of phase selector in wind power system are put forward.
Three common principles of phase selection for high voltage and UHV transmission line protection are analyzed. The adaptability of phase selection is obtained. The effect of wind power accessing upon phase selector is studied by combining the theoretical analysis with the recorded data of actual wind turbines and the simulation model analysis. Research shows that the sequence impedance of wind power system varies greatly in amplitude and phase, which will affect the phase selector based on break-variable of current and steady state sequence component but the phase selector based on fault voltage component is not affected. Finally, the improvement suggestions of phase selector in wind power system are put forward.
引文
[1]张丽英,叶廷路,辛耀中,等.大规模风电接人电网的相关问题及措施[J].中国电机工程学报,2010,30(25):1-9.ZHANG Liying,YE Yanlu,XIN Zhaozhong,et al.Problems and measures of power grid accommodating large scale wind power[J].Proceedings of the CSEE,2010,30(25):1-9.
[2]焦在强.大规模风电接入的继电保护问题综述[J].电网技术,2012,36(7):195-201.JIAO Zaiqiang.A survey on relay protection for grid-connection of large-scale wind farm[J].Power System Technology,2012,36(7):195-201.
[3]何世恩,姚旭,徐善飞.大规模风电接人对继电保护的影响与对策[J].电力系统保护与控制,2013,41(1):21-26.HE Shi'en,YAO Xu,XU Shanfei.Impact of large-scale wind power access on relay protection and countermeasures[J].Power System Protection and Control,2013,41(1):21-26.
[4]王晨清,宋国兵,迟永宁,等.风电系统故障特征分析[J].电力系统自动化,2015,39(21):52-58.WANG Chenqing,SONG Guobin,CHI Yongning,et al.Fault characteristics analysis of wind power system[J].Automation of Electric Power System,2015,39(21):52-58.
[5]魏占朋,彭妮娜.双馈风电机组短路电流特性分析[J].陕西电力,2016,44(6):18-21.WEI Zhanpeng,PENG Nina.Short circuit current analysis of DFIG[J].Shaanxi Electric Power.2016,44(6):18-21.
[6]李松林,欧阳金鑫.计及双馈机组影响的同步发电机短路电流特征研究[J],电网与清洁能源,2017,33(2):124-129.LI Songlin,OUYANG Jinxin.Research on characteristics of short-circuit current of synchronous generator considering doubly-fed induction generator[J].Power System and Clean Energy,2017,33(2):124-129.
[7]张保会,王进,原博,等.风电接人对继电保护的影响(4)—风电场送出线路保护性能分析[J].电力自动化设备,2013,33(4):1-6.ZHANG Baohui,WANG Jin,YUAN Bo,et al.Impact of wind farm integration on relay protection(4):performance analysis for wind farm outgoing transmission line protection[J].Electric Power A utomation Equipment,2013,33(4):1-6.
[8]张保会,原博,王进,等.风电接入对继电保护的影响(7)——风电场送出电网继电保护配置研究[J].电力自动化设备,2013,33(7):1-5.ZHANG Baohui,YUAN Bo,WANG Jin,et al.Impact of wind farm integration on relay protection(7):Research on relay protection configuration for wind farm outgoing system[J].Electric Power Automation Equipment,2013,33(7):1-5.
[9]王晨清,宋国兵,汤海雁,等.选相及方向元件在风电接人系统中的适应性分析[J].电力系统自动化,2016,40(1):89-94.WANG Chenqing,SONG Guobin,TANG Haiyan,et al.Adaptability analysis of phase selector and directional element in wind power access system[J].Automation of Electric Power System,2016,40(1):89-94.
[10]钟显,樊艳芳,王一波.双馈集群汇集站主变及送出线路继电保护研究[J].电力系统保护与控制,2016,44(5):47-54.ZHONG Xian,FAN Yanfang,WANG Yibo.Research of transformer and outgoing line protection of collection station where cluster of double-fed wind farms put in[J].Power System Protection and Control.2016,44(5):47-54.
[11]黄景光,郑淑文,林湘宁.基于多端差动的风电场集电线路保护新原理[J].电网与清洁能源,2016.52(9):102-106.HUANG Jingguang,ZHENG Shuwen,LIN Xiangning.New principle of wind farm collecting power line protection based on multi-terminal differentials[J].Power System and Clean Energy.2016.52(9):102-106.
[12]王晨清,宋国兵,刘凯,等.突变量保护对风电接人系统的适应性分析[J].中国电机工程学报,2014,34(31):5485-5491.WANG Chenqing,SONG Guobing,LIU Kai,et al.Adaptability analysis of sudden variable protection to wind power access system[J].Proceedings of the CSEE,2014,34(31):5485-5491.
[13]沈枢,张沛超,方陈,等.双馈风电场故障序阻抗特征及对选相元件的影响[J].电力系统自动化,2014,38(5):87-92.SHEN Shu,ZHANG Peichao,FANG Chen,et al.Characteristics of fault sequence impedance of doubly fed wind electric field and its influence on phase selector[J].Automation of Electric Power System,2014,38(5):87-92.
[14]张保会,尹项根.电力系统继电保护[M].北京:中国电力出版社,2005:67-127,256-308.
[15]王晨清,宋国兵,徐海洋,等.适用于风电接人系统的相电压暂态量时域选相新原理[J].电网技术,2015,39(8):2320-2326.WANG Chenqing,SONG Guobin,XU Haiyang,et al.A new phase voltage transient phase selection principle of wind power access system[J].Power System Technology,2015,39(8):2320-2326.
[16]黄弘扬,王波,黄晓明,等.基于双馈风电机组的分布式动态无功支撑系统[J].电力系统保护与控制,2016,44(24):140-147.HUANG Hongyang,WANG Bo,HUANG Xiaoming,et al.Distributed dynamic reactive power support system based on doubly fed induction generator[J].Power System Protection and Control,2016,44(24):140-147.
[17]刘代刚,黄河,王震泉,等.双馈风电场并网对系统低频振荡阻尼影响的分析与研究[J],陕西电力,2016,44(1):16-20.LIU Daigang,HUANG He,WANG Zhenquan.Analysis and research on impact of doubly fed wind farm integration on power system low-frequency oscillation damping[J].Shaanxi Electric Power,2016,44(1):16-20.
[18]曹青.双馈风力发电系统用双PWM变换器的研究[D].长沙:湖南大学,2008.
[19]苗琰.直驱型风力发电机组用变流器控制策略的研究[D].济南:山东大学,2011.
[2]焦在强.大规模风电接入的继电保护问题综述[J].电网技术,2012,36(7):195-201.JIAO Zaiqiang.A survey on relay protection for grid-connection of large-scale wind farm[J].Power System Technology,2012,36(7):195-201.
[3]何世恩,姚旭,徐善飞.大规模风电接人对继电保护的影响与对策[J].电力系统保护与控制,2013,41(1):21-26.HE Shi'en,YAO Xu,XU Shanfei.Impact of large-scale wind power access on relay protection and countermeasures[J].Power System Protection and Control,2013,41(1):21-26.
[4]王晨清,宋国兵,迟永宁,等.风电系统故障特征分析[J].电力系统自动化,2015,39(21):52-58.WANG Chenqing,SONG Guobin,CHI Yongning,et al.Fault characteristics analysis of wind power system[J].Automation of Electric Power System,2015,39(21):52-58.
[5]魏占朋,彭妮娜.双馈风电机组短路电流特性分析[J].陕西电力,2016,44(6):18-21.WEI Zhanpeng,PENG Nina.Short circuit current analysis of DFIG[J].Shaanxi Electric Power.2016,44(6):18-21.
[6]李松林,欧阳金鑫.计及双馈机组影响的同步发电机短路电流特征研究[J],电网与清洁能源,2017,33(2):124-129.LI Songlin,OUYANG Jinxin.Research on characteristics of short-circuit current of synchronous generator considering doubly-fed induction generator[J].Power System and Clean Energy,2017,33(2):124-129.
[7]张保会,王进,原博,等.风电接人对继电保护的影响(4)—风电场送出线路保护性能分析[J].电力自动化设备,2013,33(4):1-6.ZHANG Baohui,WANG Jin,YUAN Bo,et al.Impact of wind farm integration on relay protection(4):performance analysis for wind farm outgoing transmission line protection[J].Electric Power A utomation Equipment,2013,33(4):1-6.
[8]张保会,原博,王进,等.风电接入对继电保护的影响(7)——风电场送出电网继电保护配置研究[J].电力自动化设备,2013,33(7):1-5.ZHANG Baohui,YUAN Bo,WANG Jin,et al.Impact of wind farm integration on relay protection(7):Research on relay protection configuration for wind farm outgoing system[J].Electric Power Automation Equipment,2013,33(7):1-5.
[9]王晨清,宋国兵,汤海雁,等.选相及方向元件在风电接人系统中的适应性分析[J].电力系统自动化,2016,40(1):89-94.WANG Chenqing,SONG Guobin,TANG Haiyan,et al.Adaptability analysis of phase selector and directional element in wind power access system[J].Automation of Electric Power System,2016,40(1):89-94.
[10]钟显,樊艳芳,王一波.双馈集群汇集站主变及送出线路继电保护研究[J].电力系统保护与控制,2016,44(5):47-54.ZHONG Xian,FAN Yanfang,WANG Yibo.Research of transformer and outgoing line protection of collection station where cluster of double-fed wind farms put in[J].Power System Protection and Control.2016,44(5):47-54.
[11]黄景光,郑淑文,林湘宁.基于多端差动的风电场集电线路保护新原理[J].电网与清洁能源,2016.52(9):102-106.HUANG Jingguang,ZHENG Shuwen,LIN Xiangning.New principle of wind farm collecting power line protection based on multi-terminal differentials[J].Power System and Clean Energy.2016.52(9):102-106.
[12]王晨清,宋国兵,刘凯,等.突变量保护对风电接人系统的适应性分析[J].中国电机工程学报,2014,34(31):5485-5491.WANG Chenqing,SONG Guobing,LIU Kai,et al.Adaptability analysis of sudden variable protection to wind power access system[J].Proceedings of the CSEE,2014,34(31):5485-5491.
[13]沈枢,张沛超,方陈,等.双馈风电场故障序阻抗特征及对选相元件的影响[J].电力系统自动化,2014,38(5):87-92.SHEN Shu,ZHANG Peichao,FANG Chen,et al.Characteristics of fault sequence impedance of doubly fed wind electric field and its influence on phase selector[J].Automation of Electric Power System,2014,38(5):87-92.
[14]张保会,尹项根.电力系统继电保护[M].北京:中国电力出版社,2005:67-127,256-308.
[15]王晨清,宋国兵,徐海洋,等.适用于风电接人系统的相电压暂态量时域选相新原理[J].电网技术,2015,39(8):2320-2326.WANG Chenqing,SONG Guobin,XU Haiyang,et al.A new phase voltage transient phase selection principle of wind power access system[J].Power System Technology,2015,39(8):2320-2326.
[16]黄弘扬,王波,黄晓明,等.基于双馈风电机组的分布式动态无功支撑系统[J].电力系统保护与控制,2016,44(24):140-147.HUANG Hongyang,WANG Bo,HUANG Xiaoming,et al.Distributed dynamic reactive power support system based on doubly fed induction generator[J].Power System Protection and Control,2016,44(24):140-147.
[17]刘代刚,黄河,王震泉,等.双馈风电场并网对系统低频振荡阻尼影响的分析与研究[J],陕西电力,2016,44(1):16-20.LIU Daigang,HUANG He,WANG Zhenquan.Analysis and research on impact of doubly fed wind farm integration on power system low-frequency oscillation damping[J].Shaanxi Electric Power,2016,44(1):16-20.
[18]曹青.双馈风力发电系统用双PWM变换器的研究[D].长沙:湖南大学,2008.
[19]苗琰.直驱型风力发电机组用变流器控制策略的研究[D].济南:山东大学,2011.