全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

电容式电压互感器电路参数对电网谐波电压测量的影响

DOI: 10.13334/j.0258-8013.pcsee.2014.28.025, PP. 4968-4975

Keywords: 电容式电压互感器,级联分级分析,谐波电压测量,等效杂散电容,阻尼器参数

Full-Text   Cite this paper   Add to My Lib

Abstract:

针对66kV以上等级电网大多采用电容式电压互感器(capacitorvoltagetransformer,CVT)、其谐波传变特性定量规律不明、不宜进行谐波电压测量的现状,论证谐波条件下的CVT可等效为一线性电路,并以此为基础提出级联分级分析方法。结合实际参数对每级谐波传变特性进行分析,获得CVT电路参数对其谐波传变特性的定量影响规律,即明确利用CVT测量谐波电压的影响因素。仿真结果表明:中间变压器一次侧线圈的等效杂散电容将导致CVT幅频特性在1kHz之后的某频率点发生放大;阻尼器参数影响50Hz以上频段的频率特性变化率;负荷在1~10倍额定负荷范围变化以及中间变压器励磁阻抗在0.1~1倍额定参数范围变化时对CVT频率特性的影响可忽略。所得结论对CVT产品设计及利用其测量谐波电压具有借鉴意义。

References

[1]  吴茂林.变电站互感器宽频传输特性与接地网瞬态特性的研究[D].北京:华北电力大学,2003. Wu Maolin.Research on wide-band transfer characteristics of instrument transformers and transient characteristics of grounding grids in substations[D].Beijing:North China Electric Power University,2003(in Chinese).
[2]  张延鹏.电容式电压互感器的暂态超越研究[D].浙江:浙江大学,2005. Zhang Yanpeng.The transient overreach research of capacitive voltage transformer[D].Zhejiang:Zhejiang University,2005(in Chinese).
[3]  王黎明,方斌.500 kV电容式电压互感器暂态特性仿真[J].高电压技术,2012,38(9):2389-2396. Wang Liming,Fang Bin.Simulations on transient characteristics of 500 kV capacitor voltage transformer[J].High Voltage Engineering,2012,38(9):2389-2396(in Chinese).
[4]  李璿,叶国雄,王晓琪,等.用ATP-EMTP研究1 000 kV CVT的暂态特性[J].高电压技术,2008,34(9):1850-1855. Li Xuan,Ye Guoxiong,Wang Xiaoqi,et al.Transient characteristics of 1 000 kV capacitor voltage transformer based on ATP-EMTP[J].High Voltage Engineering,2008,34(9):1850-1855(in Chinese).
[5]  郜洪亮,李琼林,余晓鹏,等.电容式电压互感器的谐波传递特性研究[J].电网技术,2013,37(11):3125-3130. Gao Hongliang,Li Qionglin,Yu Xiaopeng,et al.Harmonic transfer characteristic of capacitor voltage transformer[J].Power System Technology,2013,37(11):3125-3130(in Chinese).
[6]  王晓琪,叶国雄,余春雨,等.1 000 kV交流特高压试验示范工程用电流电压互感器特性研究[R].武汉:国网武汉高压研究院,2008. Wang Xiaoqi,Ye Guoxiong,Yu Chunyu,et al.Characteristic research of current and voltage instrument transformer used for 1 000 kV UHV AC test pilot project[R].Wuhan:Wuhan High Voltage Research Institute of SGCC,2008(in Chinese).
[7]  王晓琪,叶国雄,郭克勤,等.1 000 kV柱式CVT的设计要点及检测[J].高电压技术,2007,33(11):37-42. Wang Xiaoqi,Ye Guoxiong,Guo Keqin,et al.Design points and test of 1 000 kV column-type capacitor voltage transformer[J].High Voltage Engineering,2007,33(11):37-42(in Chinese).
[8]  文明浩.基于虚拟电容式电压互感器的能量平衡保护[J].中国电机工程学报,2007,27(24):12-15. Wen Minghao.A new protection scheme based on energy balance with virtual CVT[J].Proceedings of the CSEE,2007,27(24):12-15(in Chinese).
[9]  凌子恕.高压互感器技术手册[M].北京:中国电力出版社,2006:38-93. Lin Zishu.Technical manual of high voltage instrument transformer[M].Beijing:China Electric Power Press,2006:38-93(in Chinese).
[10]  全国电压电流等级和频率标准化技术委员会.GB/T 12325—2008 电能质量 供电电压偏差[S].北京:中国标准出版社,2008. Chinese National Technical Committee on Standard Voltages,Current Ratings and Frequencies of Standardization.GB/T 12325-2008 Power quality-deviation of supply voltage[S].Beijing:Standard Press of China,2008(in Chinese).
[11]  全国互感器标准化技术委员会.GB/T 4703—2007 电容式电压互感器[S].北京:中国标准出版社,2007. National Standardization Technical Committees of Current Transformer.GB/T 4703-2007 Capacitor voltage transformer[S].Beijing:Standard Press of China,2007(in Chinese).
[12]  冯宇,唐轶,吴夕科.采用电量参数分析方法的电能质量扰动参数估计[J].中国电机工程学报,2009,29(16):100-107. Feng Yu,Tang Yi,Wu Xike.Parameter estimation method of power quality disturbances based on electrical parameters analysis[J].Proceedings of the CSEE,2009,29(16):100-107(in Chinese).
[13]  林海雪.电力系统谐波水平的主要控制方法[J].电网技术,2010,34(12):68-73. Lin Haixue.Principal control methods of harmonic level in power system[J].Power System Technology,2010,34(12):68-73(in Chinese).
[14]  郭伟峰,徐殿国,武健,等.LCL有源电力滤波器新型控制方法[J].中国电机工程学报,2010,30(3):42-48. Guo Weifeng,Xu Dianguo,Wu Jian,et al.Novel control method for LCL active power filter[J].Proceedings of the CSEE,2010,30(3):42-48(in Chinese).
[15]  刘延冰,李红斌,叶国雄,等.电子式互感器原理、技术及应用[M].北京:科学出版社,2009:129-139. Liu Yanbing,Li Hongbin,Ye Guoxiong,et al.Principle,technology and application of electronic instrument transformer[M].Beijing:Science Press,2009:129-139(in Chinese).
[16]  李昊翔.基于电容分压的电子式电压互感器的研究[D].武汉:华中科技大学,2011. Li Haoxiang.Research on electronic voltage transformer based on capacitive voltage divider[D].Wuhan:Huazhong University of Science & Technology,2011(in Chinese).
[17]  李斌勤,陈伟根,李刚.谐波对电网中有功计量装置的影响[J].电网技术,2010,34(6):154-159. Li Binqin,Chen Weigen,Li Gang.Analysis on affects of harmonic on active energy metering devices[J].Power System Technology,2010,34(6):154-159(in Chinese).
[18]  全国电压电流等级和频率标准化技术委员会.GB/T 14549—1993 电能质量 公用电网谐波[S].北京:中国标准出版社,1994. Chinese National Technical Committee on Standard Voltages,Current Ratings and Frequencies of Standardization.GB/T 14549-1993 Quality of electric energy supply-harmonics in public supply network[S].Beijing:Standard Press of China,2008(in Chinese).
[19]  赵伟,涂春鸣,罗安,等.适用于电气化铁路的单相注入式混合有源滤波器[J].中国电机工程学报,2008,28(21):51-56. Zhao Wei,Tu Chunming,Luo An,et al.A novel single-phase hybrid active power filter applied to electrical railway system[J].Proceedings of the CSEE,2008,28(21):51-56(in Chinese).
[20]  于坤山,周胜军,王同勋,等.电气化铁路供电与电能质量[M].北京:中国电力出版社,2011:7-33.
[21]  Yu Kunshan,Zhou Shengjun,Wang Tongxun,et al.Electric railway power supply and power quality[M].Beijing:China Electric Power Press,2011:7-33(in Chinese).
[22]  欧盟-亚洲电能质量项目中国合作组.用户电能质量测试评估与解决方案案例集[M].北京:中国电力出版社,2009:8-59. Chinese Cooperation Group under EU-ASIA Power Quality Initiative.Case collection of power quality testing evaluation and solutions[M].Beijing:China Electric Power Press,2009:8-59(in Chinese).
[23]  Xiao Yao,Fu Jun,Hu Bin,et al.Problems of voltage transducer in harmonic measurement[J].IEEE Transactions on Power Delivery,2004,19(3):1483-1487.
[24]  段晓波.500 kV变电站谐波测试方法[J].电力设备,2004,5(12):43-44. Duan Xiaobo.Harmonic test method for 500 kV substation[J].Electrical Equipment,2004,5(12):43-44(in Chinese).
[25]  刘振亚.国家电网公司物资采购标准交流电流互感器卷(2009年版)[M].北京:中国电力出版社,2009:1-172. Liu Zhenya.AC current instrument transformer volume of SGCC supplies purchasing standard (2009 edition)[M].Beijing:China Electric Power Press,2009:1-172(in Chinese).
[26]  Wengao Lou.Span of realize BP network’s theory to practice[J].Transactions of Haerbing Engineering University,2006,27(B07):59-63.
[27]  Ghassemi F,Gale P,Cumming T,et al.Harmonic voltage measurements using CVTs[J].IEEE Transactions on Power Delivery,2005,20(1):443-449.
[28]  巩学海,孔维政,余占清,等.变电站互感器宽频传输特性试验研究[J].高电压技术,2009,35(7):l736-l742. Gong Xuehai,Kong Weizheng,Yu Zhanqing,et al.Experimental research on wide frequency transfer characteristics of voltage and current transformers in substations[J].High Voltage Engineering,2009,35(7):1736-1742(in Chinese).

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133