基于尺度不变特征变换的电网静态电压稳定边界特征提取方法
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摘要
电网静态电压稳定边界特征提取是静态稳定态势在线评估及控制的核心。文章提出一种基于尺度不变特征变换的电力系统静态电压稳定边界特征提取方法,直接挖掘电网静态电压稳定临界状态下全息信息的关联程度,映射不同运行状态工况下的边界特征的关联程度,可以全面体现静稳极限时的运行状态,对于改进现有电网静态稳定态势评估指标、改善当前静态稳定评估方法具有重要意义。经过IEEE39节点系统的测试验证,表明了该方法的有效性。
The static voltage stability boundary feature extraction of the grid is the core of the online assessment and control of the static steady state. In this paper, a method for extracting static voltage stability boundary features of power systems based on scale-invariant feature transform is proposed. The degree of correlation of holographic information under static voltage stability critical state is directly explored, and the degree of correlation of boundary features under different operating conditions is mapped. It can fully reflect the operating state at the static stability limit, which is of great significance for improving the static stability situation assessment index of the existing power grid and improving the current static stability assessment method. The test results of IEEE39 node system show that the method is effective.
The static voltage stability boundary feature extraction of the grid is the core of the online assessment and control of the static steady state. In this paper, a method for extracting static voltage stability boundary features of power systems based on scale-invariant feature transform is proposed. The degree of correlation of holographic information under static voltage stability critical state is directly explored, and the degree of correlation of boundary features under different operating conditions is mapped. It can fully reflect the operating state at the static stability limit, which is of great significance for improving the static stability situation assessment index of the existing power grid and improving the current static stability assessment method. The test results of IEEE39 node system show that the method is effective.
引文
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[14]刘道伟,韩学山,杨明,等.基于全参量灵敏度的电网静态稳定实用判据[J].中国电机工程学报,2012,32(7):91-100,196.LIU Daowei,HAN Xueshan,YANG Ming,et al.Applied criterion of power system static stability based on comprehensive parameters sensitivity technique[J].Proceedings of the CSEE,2012,32(7):91-100,196.
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[18]刘道伟,韩学山,王勇,等.在线电力系统静态稳定域的研究及其应用[J].中国电机工程学报,2009,29(34):42-49.LIU Daowei,HAN Xueshan,WANG Yong,et al.Studies on the online static stability region in power systems and its application[J].Proceedings of the CSEE,2009,29(34):42-49.
[19]吴茜,张东霞,刘道伟,等.基于随机矩阵理论的电网静态稳定态势评估方法[J].中国电机工程学报,2016,36(20):5414-5420,5717.WU Qian,ZHANG Dongxia,LIU Daowei,et al.A method for power system steady stability situation assessment based on random matrix theory[J].Proceedings of the CSEE,2016,36(20):5414-5420,5717.
[20]朱英宏,李俊山,杨威,等.异源图像特征点边缘描述与匹配[J].计算机科学,2013,40(7):277-279,282.ZHU Yinghong,LI Junshan,YANG Wei,et al.Edges description and datching algorithm for different-source images[J].Computer Science,2013,40(7):277-279,282.
[21]许建,黄楠.基于SIFT和非采样Contourlet变换的鲁棒水印算法[J].计算机应用与软件,2013,30(8):68-72,126.XU Jian,HUANG Nan.A robust watermarking algorithm based on sift and nonsubsampled contourlet transform[J].Computer Applications and Software,2013,30(8):68-72,126.
[22]尚超.序列图像的三维重建技术研究[D].西安:西北大学,2012.
[23]刘景正,余旭初,李艳.仿射不变特征转换的运动目标跟踪方法[J].测绘科学,2012,37(4):26-28.LIU Jingzheng,YU Suchu,LI Yan.Motion object tracking based on affine SIFT[J].Science of Surveying and Mapping,2012,37(4):26-28.
[24]高华,曹锋,陈明星.基于SIFT-BP的图像配准算法[J].重庆理工大学学报(自然科学),2011,25(12):106-110.GAO Hua,CAO Feng,CHEN Mingxing.Algorithm of image registration based on SIFT-BP[J].Journal of Chongqing University of Technology(Natural Science),2011,25(12):106-110.
[25]刘鹏,王敏.基于改进加权融合算法的运动场景图像拼接[J].信息技术,2014(12):177-180.LIU Peng,WANG Min.Image mosaics of dynamic scene based on SIFT and an improved smoothing algorithm[J].Information Technology,2014(12):177-180.
[26]赵晋泉,张伯明.连续潮流及其在电力系统静态稳定分析中的应用[J].电力系统自动化,2005,29(11):91-97.Z H A O J i n q u a n,Z H A N G B o m i n g.S u m m a r i z a t i o n o f continuation power flow and its applications in static stability analysis of power system[J].Automation of Electric Power Systems,2005,29(11):91-97.
[27]张书瑀.电力系统电压稳定性分析指标的研究与应用[D].北京:中国电力科学研究院,2017.
[2]章雅纯,陈树勇,刘道伟,等.基于映射广义弹性系数的电网静态稳定快速评估判据[J].中国电机工程学报,2015,35(16):4094-4101.ZHANG Yachun,CHEN Shuyong,LIU Daowei,et al.Rapid quantitative method for power system static stability assessment based on mapping general elastic coefficient[J].Proceedings of the CSEE,2015,35(16):4094-4101.
[3]梁辰,刘道伟,焦彦军.基于改进动态阻抗法的电网静态电压稳定裕度快速评估[J].电力系统保护与控制,2017,45(24):44-49.LIANG Chen,LIU Daowei,JIAO Yanjun.Rapid evaluation of power system static voltage stability margin based on improved dynamic impedance[J].Power System Protection and Control,2017,45(24):44-49.
[4]姜涛,张明宇,李雪,等.静态电压稳定域局部边界的快速搜索新方法[J].中国电机工程学报,2018,38(14):4126-4137,4318.JIANG Tao,ZHANG Mingyu,LI Xue,et al.A novel algorithm to explore static voltage stability regionboundary in power systems[J].Proceedings of the CSEE,2018,38(14):4126-4137,4318.
[5]赵晋泉.一种实用的二维参数静态稳定边界追踪方法[J].电力系统保护与控制,2011,39(11):17-21,32.ZHAO Jinquan.A practical two-parameter steady stability boundary tracing method[J].Power System Protection and Control,2011,39(11):17-21,32.
[6]李柏青,刘道伟,秦晓辉,等.信息驱动的大电网全景安全防御概念及理论框架[J].中国电机工程学报,2016,36(21):5796-5805,6022.LI Baiqing,LIU Daowei,QIN Xiaohui,et al.Concept and theory framework of panoramic security defense for bulk power system driven by information[J].Proceedings of the CSEE,2016,36(21):5796-5805,6022.
[7]刘道伟,张东霞,孙华东,等.时空大数据环境下的大电网稳定态势量化评估与自适应防控体系构建[J].中国电机工程学报,2015,35(2):268-276.LIU Daowei,ZHANG Dongxia,SUN Huadong.Construction of stability situation quantitative assessment and adaptive control system for large scale power grid in the spatio temporal big data environment[J].Proceedings of the CSEE,2015,35(2):268-276.
[8]刘远远,冯鹏,龙邹荣,等.双目成像系统特征提取方法研究与实现[J/OL].激光与光电子学进展,2017:1-15(2017-12-08)[2018-12-02].http://kns.cnki.net/kcms/detail/31.1690.TN.20171201.1511.024.html.LIU Yuanyuan,FENG Peng,LONG Zourong,et al.Research and implementation of feature extraction method for binocular imaging system[J/OL].Laser&Optoelectronics Progress,2017:1-15(2017-12-08)[2018-12-02].http://kns.cnki.net/kcms/detail/31.1690.TN.20171201.1511.024.html.
[9]赵立荣,朱玮,曹永刚,等.改进的加速鲁棒特征算法在特征匹配中的应用[J].光学精密工程,2013,21(12):3263-3271.ZHAO Lirong,ZHU Wei,CAO Yonggang,et al.Application of improved SURF algorithm to feature matching[J].Optics and Precision Engineering,2013,21(12):3263-3271.
[10]黄杰,于瑞鹏,丁翠,等.直线特征的多层次仿射不变匹配方法研究[J].测绘科学,2016,41(7):28-32.HUANG Jie,YU Ruipeng,DING Cui,et al.Study on line matching method based on multi-level and affine invariant[J].Science of Surveying and Mapping,2016,41(7):28-32.
[11]吕凤华,舒宁,龚颵,等.利用多特征进行航空影像建筑物提取[J].武汉大学学报(信息科学版),2017,42(5):656-660.LV Fenghua,SHU Ning,GONG Yan,et al.Regular building extraction from high resolution image based on multilevelfeatures[J].Geomatics and Information Science of Wuhan University,2017,42(5):656-660.
[12]巩伟峥,房鑫炎.基于广域测量系统的电压稳定指标[J].电网技术,2011,35(4):71-75.GONG Weizheng,FANG Xinyan.A on-line voltage stability index based on wide area measurement system[J].Power System Technology,2011,35(4):71-75.
[13]孙华东,汤涌,马世英.电力系统稳定的定义与分类述评[J].电网技术,2006,30(17):31-35.SUN Huadong,TANG Yong,MA Shiying.A commentary on definitionand classification of power system stability[J].Power System Technology,2006,30(17):31-35.
[14]刘道伟,韩学山,杨明,等.基于全参量灵敏度的电网静态稳定实用判据[J].中国电机工程学报,2012,32(7):91-100,196.LIU Daowei,HAN Xueshan,YANG Ming,et al.Applied criterion of power system static stability based on comprehensive parameters sensitivity technique[J].Proceedings of the CSEE,2012,32(7):91-100,196.
[15]汤涌,仲悟之,孙华东,等.电力系统电压稳定机理研究[J].电网技术,2010,34(4):24-29.TANG Yong,ZHONG Wuzhi,SUN Huadong,et al.Study on mechanism of power system voltage stability[J].Power System Technology,2010,34(4):24-29.
[16]Van NGUYEN Thang,NGUYEN Y,M,YOON Y T.A new method for static voltage stability assessment based on the local loadability boundary[J].International Journal of Emerging Electric Power Systems,2012,13(4):583-590.
[17]王刚,张雪敏,梅生伟.静态电压稳定域边界的二次近似分析[J].中国电机工程学报报,2008,28(19):30-35.WANG Gang,ZHANG Xuemin,MEI Shengwei.Quadratic approximation analysis of static voltage stability region boundary[J].Proceedings of the CSEE,2008,28(19):30-35.
[18]刘道伟,韩学山,王勇,等.在线电力系统静态稳定域的研究及其应用[J].中国电机工程学报,2009,29(34):42-49.LIU Daowei,HAN Xueshan,WANG Yong,et al.Studies on the online static stability region in power systems and its application[J].Proceedings of the CSEE,2009,29(34):42-49.
[19]吴茜,张东霞,刘道伟,等.基于随机矩阵理论的电网静态稳定态势评估方法[J].中国电机工程学报,2016,36(20):5414-5420,5717.WU Qian,ZHANG Dongxia,LIU Daowei,et al.A method for power system steady stability situation assessment based on random matrix theory[J].Proceedings of the CSEE,2016,36(20):5414-5420,5717.
[20]朱英宏,李俊山,杨威,等.异源图像特征点边缘描述与匹配[J].计算机科学,2013,40(7):277-279,282.ZHU Yinghong,LI Junshan,YANG Wei,et al.Edges description and datching algorithm for different-source images[J].Computer Science,2013,40(7):277-279,282.
[21]许建,黄楠.基于SIFT和非采样Contourlet变换的鲁棒水印算法[J].计算机应用与软件,2013,30(8):68-72,126.XU Jian,HUANG Nan.A robust watermarking algorithm based on sift and nonsubsampled contourlet transform[J].Computer Applications and Software,2013,30(8):68-72,126.
[22]尚超.序列图像的三维重建技术研究[D].西安:西北大学,2012.
[23]刘景正,余旭初,李艳.仿射不变特征转换的运动目标跟踪方法[J].测绘科学,2012,37(4):26-28.LIU Jingzheng,YU Suchu,LI Yan.Motion object tracking based on affine SIFT[J].Science of Surveying and Mapping,2012,37(4):26-28.
[24]高华,曹锋,陈明星.基于SIFT-BP的图像配准算法[J].重庆理工大学学报(自然科学),2011,25(12):106-110.GAO Hua,CAO Feng,CHEN Mingxing.Algorithm of image registration based on SIFT-BP[J].Journal of Chongqing University of Technology(Natural Science),2011,25(12):106-110.
[25]刘鹏,王敏.基于改进加权融合算法的运动场景图像拼接[J].信息技术,2014(12):177-180.LIU Peng,WANG Min.Image mosaics of dynamic scene based on SIFT and an improved smoothing algorithm[J].Information Technology,2014(12):177-180.
[26]赵晋泉,张伯明.连续潮流及其在电力系统静态稳定分析中的应用[J].电力系统自动化,2005,29(11):91-97.Z H A O J i n q u a n,Z H A N G B o m i n g.S u m m a r i z a t i o n o f continuation power flow and its applications in static stability analysis of power system[J].Automation of Electric Power Systems,2005,29(11):91-97.
[27]张书瑀.电力系统电压稳定性分析指标的研究与应用[D].北京:中国电力科学研究院,2017.