基于稀疏成分分析的多直流馈入城市电网直流落点系统侧谐波阻抗计算方法
|
摘要
多直流馈入城市电网具有高电缆化率,在电网中易产生感容耦合,从而引发谐振与谐波放大。计算直流落点系统侧谐波阻抗对治理上述问题具有指导意义。由于直流落点背景谐波大且落点侧谐波阻抗并非远大于系统侧,现有方法难以求解。为此,该文提出一种基于稀疏成分分析的改进复独立分量算法,在复独立分量法分离出的谐波源信号基础上进行局部搜索,由稀疏成分分析构造稀疏筛选判据,通过稀疏筛选与非高斯性二次筛选找出与真实源信号吻合的局部信号,进而求取系统侧谐波阻抗。该算法在背景谐波较大且落点侧谐波阻抗非远大于系统侧时仍然适用。通过仿真与实际案例验证所提算法的正确性与有效性。
Inductance-capacitance coupling, which can cause resonance and harmonic amplification, often exists in city grid with multi-infeed DC system for its high cable rate.Calculating system-side harmonic impedance is significant to analysis system resonance. For a DC drop point, the background harmonic is large and the harmonic impedance in DC side may not far larger than it in system side. Thus, existing methods may failed calculating system side harmonic impedance. This paper proposed a new method named ICA-SCA to solve this problem. Based on the signal separated from ICA, the local signal which is highly consistent with the genuine source signal can be found through sparse and non-Gaussian screening, and so system harmonic impedance can be calculated accurately. The proposed method is applicable even when background harmonic is large and harmonic impedance of DC side is not far larger than it in system side. The validity of the proposed method was verified through simulation and practice cases.
Inductance-capacitance coupling, which can cause resonance and harmonic amplification, often exists in city grid with multi-infeed DC system for its high cable rate.Calculating system-side harmonic impedance is significant to analysis system resonance. For a DC drop point, the background harmonic is large and the harmonic impedance in DC side may not far larger than it in system side. Thus, existing methods may failed calculating system side harmonic impedance. This paper proposed a new method named ICA-SCA to solve this problem. Based on the signal separated from ICA, the local signal which is highly consistent with the genuine source signal can be found through sparse and non-Gaussian screening, and so system harmonic impedance can be calculated accurately. The proposed method is applicable even when background harmonic is large and harmonic impedance of DC side is not far larger than it in system side. The validity of the proposed method was verified through simulation and practice cases.
引文
[1]林伟芳,汤涌,卜广全.多馈入交直流系统短路比的定义和应用[J].中国电机工程学报,2008,28(31):1-8.Lin Weifang,Tang Yong,Bu Guangquan.Definition and application of short circuit ratio for multi-infeed AC/DCpower systems[J].Proceedings of the CSEE,2008,28(31):1-8(in Chinese).
[2]毛涛,乐健,黄银龙,等.一种新型的高压直流输电系统交流侧谐波电压测量方法[J].中国电机工程学报,2015,35(4):796-803.Mao Tao,Le Jian,Huang Yinlong,et al.A novel AC side harmonic voltage measurement scheme of high-voltage DC power systems[J].Proceedings of the CSEE,2015,35(4):796-803(in Chinese).
[3]金祖洋,杨洪耕,潘爱强.多直流馈入城市输电网谐波放大特性分析[J].电网技术,2016,40(12):3857-3864.Jin Zuyang,Yang Honggeng,Pan Aiqiang.Analysis on harmonic amplification characteristics of urban transmission network with multi-infeed DC system[J].Power System Technology,2016,40(12):3857-3864(in Chinese).
[4]陈甜甜,胡蓉,金祖洋,等.邻近直流输电落点的城市电网谐波传导特性分析[J].电网技术,2015,39(10):3000-3004.Chen Tiantian,Hu Rong,Jin Zuyang,et al.Analysis research on harmonic transmission characteristics of urban power network adjacent to UHVDC terminal location[J].Power System Technology,2015,39(10):3000-3004(in Chinese).
[5]Gong Dai,Sun Jing,Zhao Ziyu.Research on directional coupler measurement in partial discharge monitoring of XLPE cable[C]//Proceedings of 2014 International Symposium on Electrical Insulating Materials.Niigata,Japan:IEEE,2014:253-256.
[6]Zhang Shao,Jiang Shuai,Lu Xi,et al.Resonance issues and damping techniques for grid-connected inverters with long transmission cable[J].IEEE Transactions on Power Electronics,2013,29(1):110-120.
[7]Borkowski D,Wetula A,BieńA.New method for noninvasive measurement of utility harmonic impedance[C]//Proceedings of 2012 IEEE Power and Energy Society General Meeting.San Diego,CA,USA:IEEE,2012:2-9.
[8]Hui Jin,Freitas W,Vieira J C M,et al.Utility harmonic impedance measurement based on data selection[J].IEEETransactions on Power Delivery,2012,27(4):2193-2202.
[9]赵峰,黄天恩,孙宏斌.电网安全运行知识的表达与演变[J].中国电机工程学报,2015,35(20):5117-5123.Zhao Feng,Huang Tianen,Sun Hongbin.Expression and evolvement of power system security operating knowledge[J].Proceedings of the CSEE,2015,35(20):5117-5123(in Chinese).
[10]Yang Honggeng,Porotte P,Robert A.Assessing the harmonic emission level from one particular customer[C]//Proceedings of the 3rd International Conference on Power Quality.Amsterdam,Netherlands:IEEE Power Quality Conference,1994:160-166.
[11]龚华麟,肖先勇,刘亚梅,等.基于主导波动量筛选原理的用户谐波发射水平估计方法[J].中国电机工程学报,2010,30(4):22-27.Gong Hualin,Xiao Xianyong,Liu Yamei,et al.A method for assessing customer harmonic emission level based on the dominant fluctuation filtering principle[J].Proceedings of the CSEE,2010,30(4):22-27(in Chinese).
[12]车权,杨洪耕.基于稳健回归的谐波发射水平估计方法[J].中国电机工程学报,2004,24(4):39-42,49.Che Quan,Yang Honggeng.Assessing the harmonic emission level based on robust regression method[J].Proceedings of the CSEE,2004,24(4):39-42,49(in Chinese).
[13]Hui Jin,Yang Honggeng,Lin Shunfu,et al.Assessing utility harmonic impedance based on the covariance characteristic of random vectors[J].IEEE Transactions on Power Delivery,2010,25(3):1778-1786.
[14]Zhao Xi,Yang Honggeng.A new method to calculate the utility harmonic impedance based on Fast ICA[J].IEEETransactions on Power Delivery,2016,31(1):381-388.
[15]袁林,杨洪耕,王智琦,等.基于快速近似联合对角化的谐波发射水平评估方法[J].电力系统自动化,2017,41(7):81-87.Yuan Lin,Yang Honggeng,Wang Zhiqi,et al.Assessment method of harmonic emission level based on fast approximate joint diagonalization[J].Automation of Electric Power Systems,2017,41(7):81-87(in Chinese).
[16]Karimzadeh F,Esmaeili S,Hosseinian S H.A novel method for noninvasive estimation of utility harmonic impedance based on complex independent component analysis[J].IEEE Transactions on Power Delivery,2015,30(4):1843-1852.
[17]Karimzadeh F,Esmaeili S,Hosseinian S H.Method for determining utility and consumer harmonic contributions based on complex independent component analysis[J].IET Generation,Transmission&Distribution,2016,10(2):526-534.
[18]余先川,胡丹.盲源分离理论与应用[M].北京:科学出版社,2011:201-209.Yu Xianchuan,Hu Dan.Blind sources separation theory and application[M].Beijing,China:Science Press,2011:201-209(in Chinese).
[19]徐金东,余先川,胡丹,等.基于变换域单源点筛选的高效盲图像分离[J].电子学报,2013,41(11):2193-2198.Xu Jindong,Yu Xianchuan,Hu Dan,et al.An efficient blind image separation based on screening single source points in transform domain[J].Acta Electronica Sinica,2013,41(11):2193-2198(in Chinese).
[20]Yu Xianchuan,Xu Jindong,Hu Dan,et al.A new blind image source separation algorithm based on feedback sparse component analysis[J].Signal Processing,2013,93(1):288-296.
[21]Li Yuanqin,Amari S,Cichocki A,et al.Underdetermined blind source separation based on sparse representation[J].IEEE Transactions on Signal Processing,2006,54(2):423-437.
[22]Reju V G,Koh S N,Soon I Y.An algorithm for mixing matrix estimation in instantaneous blind source separation[J].Signal Processing,2009,89(9):1762-1773.
[23]Bofill P,Zibulevsky M.Underdetermined blind source separation using sparse representations[J].Signal Processing,2001,81(11):2353-2362.
[24]Zhang Jie,Li Shiyun.A novel dictionary learning approach based on blind source separation basis and its application[J].Advances in Mechanical Engineering,2017,9(6):1-11.
[25]Abolghasemi V,Ferdowsi S,Sanei S.Blind separation of image sources via adaptive dictionary learning[J].IEEETransactions on Image Processing,2012,21(6):2921-2930.
[26]Aharon M,Elad M,Bruckstein A.rm K-SVD:An algorithm for designing overcomplete dictionaries for sparse representation[J].IEEE Transactions on Signal Processing,2006,54(11):4311-4322.
[27]赵熙,杨洪耕.基于贝叶斯定理的系统谐波阻抗估计[J].中国电机工程学报,2016,36(11):2935-2943.Zhao Xi,Yang Honggeng.Utility harmonic impedance estimation based on Bayes theorem[J].Proceedings of the CSEE,2016,36(11):2935-2943(in Chinese).
[28]王辉,刘炜,李群湛,等.基于复数域偏最小二乘法与等值法的多谐波源责任划分[J].电力系统自动化,2017,41(4):78-85,119.Wang Hui,Liu Wei,Li Quanzhao,et al.Responsibility distinction for multiple harmonic sources based on partial least square in complex field and equivalent method[J].Automation of Electric Power Systems,2017,41(4):78-85,119(in Chinese).
[2]毛涛,乐健,黄银龙,等.一种新型的高压直流输电系统交流侧谐波电压测量方法[J].中国电机工程学报,2015,35(4):796-803.Mao Tao,Le Jian,Huang Yinlong,et al.A novel AC side harmonic voltage measurement scheme of high-voltage DC power systems[J].Proceedings of the CSEE,2015,35(4):796-803(in Chinese).
[3]金祖洋,杨洪耕,潘爱强.多直流馈入城市输电网谐波放大特性分析[J].电网技术,2016,40(12):3857-3864.Jin Zuyang,Yang Honggeng,Pan Aiqiang.Analysis on harmonic amplification characteristics of urban transmission network with multi-infeed DC system[J].Power System Technology,2016,40(12):3857-3864(in Chinese).
[4]陈甜甜,胡蓉,金祖洋,等.邻近直流输电落点的城市电网谐波传导特性分析[J].电网技术,2015,39(10):3000-3004.Chen Tiantian,Hu Rong,Jin Zuyang,et al.Analysis research on harmonic transmission characteristics of urban power network adjacent to UHVDC terminal location[J].Power System Technology,2015,39(10):3000-3004(in Chinese).
[5]Gong Dai,Sun Jing,Zhao Ziyu.Research on directional coupler measurement in partial discharge monitoring of XLPE cable[C]//Proceedings of 2014 International Symposium on Electrical Insulating Materials.Niigata,Japan:IEEE,2014:253-256.
[6]Zhang Shao,Jiang Shuai,Lu Xi,et al.Resonance issues and damping techniques for grid-connected inverters with long transmission cable[J].IEEE Transactions on Power Electronics,2013,29(1):110-120.
[7]Borkowski D,Wetula A,BieńA.New method for noninvasive measurement of utility harmonic impedance[C]//Proceedings of 2012 IEEE Power and Energy Society General Meeting.San Diego,CA,USA:IEEE,2012:2-9.
[8]Hui Jin,Freitas W,Vieira J C M,et al.Utility harmonic impedance measurement based on data selection[J].IEEETransactions on Power Delivery,2012,27(4):2193-2202.
[9]赵峰,黄天恩,孙宏斌.电网安全运行知识的表达与演变[J].中国电机工程学报,2015,35(20):5117-5123.Zhao Feng,Huang Tianen,Sun Hongbin.Expression and evolvement of power system security operating knowledge[J].Proceedings of the CSEE,2015,35(20):5117-5123(in Chinese).
[10]Yang Honggeng,Porotte P,Robert A.Assessing the harmonic emission level from one particular customer[C]//Proceedings of the 3rd International Conference on Power Quality.Amsterdam,Netherlands:IEEE Power Quality Conference,1994:160-166.
[11]龚华麟,肖先勇,刘亚梅,等.基于主导波动量筛选原理的用户谐波发射水平估计方法[J].中国电机工程学报,2010,30(4):22-27.Gong Hualin,Xiao Xianyong,Liu Yamei,et al.A method for assessing customer harmonic emission level based on the dominant fluctuation filtering principle[J].Proceedings of the CSEE,2010,30(4):22-27(in Chinese).
[12]车权,杨洪耕.基于稳健回归的谐波发射水平估计方法[J].中国电机工程学报,2004,24(4):39-42,49.Che Quan,Yang Honggeng.Assessing the harmonic emission level based on robust regression method[J].Proceedings of the CSEE,2004,24(4):39-42,49(in Chinese).
[13]Hui Jin,Yang Honggeng,Lin Shunfu,et al.Assessing utility harmonic impedance based on the covariance characteristic of random vectors[J].IEEE Transactions on Power Delivery,2010,25(3):1778-1786.
[14]Zhao Xi,Yang Honggeng.A new method to calculate the utility harmonic impedance based on Fast ICA[J].IEEETransactions on Power Delivery,2016,31(1):381-388.
[15]袁林,杨洪耕,王智琦,等.基于快速近似联合对角化的谐波发射水平评估方法[J].电力系统自动化,2017,41(7):81-87.Yuan Lin,Yang Honggeng,Wang Zhiqi,et al.Assessment method of harmonic emission level based on fast approximate joint diagonalization[J].Automation of Electric Power Systems,2017,41(7):81-87(in Chinese).
[16]Karimzadeh F,Esmaeili S,Hosseinian S H.A novel method for noninvasive estimation of utility harmonic impedance based on complex independent component analysis[J].IEEE Transactions on Power Delivery,2015,30(4):1843-1852.
[17]Karimzadeh F,Esmaeili S,Hosseinian S H.Method for determining utility and consumer harmonic contributions based on complex independent component analysis[J].IET Generation,Transmission&Distribution,2016,10(2):526-534.
[18]余先川,胡丹.盲源分离理论与应用[M].北京:科学出版社,2011:201-209.Yu Xianchuan,Hu Dan.Blind sources separation theory and application[M].Beijing,China:Science Press,2011:201-209(in Chinese).
[19]徐金东,余先川,胡丹,等.基于变换域单源点筛选的高效盲图像分离[J].电子学报,2013,41(11):2193-2198.Xu Jindong,Yu Xianchuan,Hu Dan,et al.An efficient blind image separation based on screening single source points in transform domain[J].Acta Electronica Sinica,2013,41(11):2193-2198(in Chinese).
[20]Yu Xianchuan,Xu Jindong,Hu Dan,et al.A new blind image source separation algorithm based on feedback sparse component analysis[J].Signal Processing,2013,93(1):288-296.
[21]Li Yuanqin,Amari S,Cichocki A,et al.Underdetermined blind source separation based on sparse representation[J].IEEE Transactions on Signal Processing,2006,54(2):423-437.
[22]Reju V G,Koh S N,Soon I Y.An algorithm for mixing matrix estimation in instantaneous blind source separation[J].Signal Processing,2009,89(9):1762-1773.
[23]Bofill P,Zibulevsky M.Underdetermined blind source separation using sparse representations[J].Signal Processing,2001,81(11):2353-2362.
[24]Zhang Jie,Li Shiyun.A novel dictionary learning approach based on blind source separation basis and its application[J].Advances in Mechanical Engineering,2017,9(6):1-11.
[25]Abolghasemi V,Ferdowsi S,Sanei S.Blind separation of image sources via adaptive dictionary learning[J].IEEETransactions on Image Processing,2012,21(6):2921-2930.
[26]Aharon M,Elad M,Bruckstein A.rm K-SVD:An algorithm for designing overcomplete dictionaries for sparse representation[J].IEEE Transactions on Signal Processing,2006,54(11):4311-4322.
[27]赵熙,杨洪耕.基于贝叶斯定理的系统谐波阻抗估计[J].中国电机工程学报,2016,36(11):2935-2943.Zhao Xi,Yang Honggeng.Utility harmonic impedance estimation based on Bayes theorem[J].Proceedings of the CSEE,2016,36(11):2935-2943(in Chinese).
[28]王辉,刘炜,李群湛,等.基于复数域偏最小二乘法与等值法的多谐波源责任划分[J].电力系统自动化,2017,41(4):78-85,119.Wang Hui,Liu Wei,Li Quanzhao,et al.Responsibility distinction for multiple harmonic sources based on partial least square in complex field and equivalent method[J].Automation of Electric Power Systems,2017,41(4):78-85,119(in Chinese).
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |