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...
电网技术  2015 

青海电网二次谐波传导机理与抑制措施

DOI: 10.13335/j.1000-3673.pst.2015.08.032, PP. 2277-2282

Keywords: 青藏直流系统,2次谐波,转移阻抗,电网等值模型,励磁涌流

Full-Text   Cite this paper   Add to My Lib

Abstract:

青海750kV电网官亭主变空载变压器合闸曾引起青藏直流双极闭锁事故,针对青海电网低次谐波传导机理与抑制措施开展了相关研究。首先计算750kV官亭站与330kV柴达木换流站之间的节点转移阻抗,判断出网架内存在二次谐振的风险;然后在EMTDC环境下搭建青海电网等值模型,对网架内各节点的背景谐波水平进行仿真,通过仿真结果与实测数据的对比,验证了模型的准确性;在此基础上根据合空变励磁涌流测试数据,在仿真模型中模拟官亭主变空载合闸引起青藏直流谐波保护动作的工况,确定了谐波传导至柴达木换流母线的放大水平;最后基于换流母线上出现的最严重低次谐波工况,提出了几类谐波抑制措施,并通过仿真评估了几类措施的抑制效果。

References

[1]  廖民传,蔡广林,张勇军.交直流混合系统受端电网暂态电压稳定分析[J].电力系统保护与控制,2009,37(10):1-4.Liao Minchuan,Cai Guanglin,Zhang Yongjun.Transient voltage stability of received power grid in AC/DC hybrid power systems[J].Power System Protection and Control,2009,37(10):1-4(in Chinese).
[2]  罗德彬,汪峰,徐叶玲.国家电网公司直流输电系统典型故障分析[J].电网技术,2006,30(1):35-39.Luo Debin,Wang Feng,Xu Yeling.Analysis on typical faults in SGCC’s HVDC projects[J].Power System Technology,2006,30(1):35-39(in Chinese).
[3]  马玉龙,肖湘宁,姜旭.交流系统接地故障对HVDC的影响分析[J].中国电机工程学报,2006,26(11):144-149.Ma Yulong,Xiao Xiangning,Jiang Xu.Analysis of the impact of AC system single-phase earth fault on HVDC[J].Proceedings of the CSEE,2006,26(11):144-149(in Chinese).
[4]  穆子龙,李兴源.交直流输电系统相互影响引起的谐波不稳定问题[J].电力系统自动化,2009,33(2):96-100.Mu Zilong,Li Xingyuan.Harmonic instability caused by interactions between AC and DC transmission systems[J].Automation of Electric Power Systems,2009,33(2):96-100 (in Chinese).
[5]  徐政.联于弱交流系统的直流输电特性研究之二:控制方式与电压稳定性[J].电网技术,1997,21(3):1-4.Xu Zheng.The characteristics of HVDC connected to weak AC systems-part II: control modes and voltage stability[J].Power System Technology,1997,21(3):1-4(in Chinese).
[6]  周长春,徐政.联于弱交流系统的HVDC故障恢复特性仿真分析[J].电网技术,2003,27(11):18-21.Zhou Changchun,Xu Zheng.Simulation and analysis of recovery characteristics of HVDC connected to AC system with weak strength[J].Power System Technology,2003,27(11):18-21(in Chinese).
[7]  Nayak O B,Gole A M,Chapman D G,et al.Dynamic performance of smile and synchronous compensators at an HVDC inverter bus in a very weak AC system[J].IEEE Trans on Power Delivery,1994,9(3):1350-1358.
[8]  Franken B.Analysis of HVDC converters connected to weak AC systems[J].IEEE Transaction on Power System,1990,5(1):235-242.
[9]  王鹏伍,崔翔.MMC-HVDC三相解耦二次谐波环流抑制算法[J].电力系统自动化,2013,37(15):47-52.Wang Pengwu,Cui xiang.Three phases decoupled second harmonic circulation current suppression algorithm for MMC-HVDC[J].Automation of Electric Power Systems,2013,37(15):47-52(in Chinese).
[10]  Task Force on Harmonics Modeling and Simulation.The modeling and simulation of the propagation of harmonics in electric power networks, part I: concepts, models and simulation techniques[J].IEEE Trans on Power Delivery,1996,11(1):452-465.
[11]  程浩忠,廖培鸿.电力系统谐波潮流的降维计算方法[J].电力系统自动化,1996,20(1):20-22.Cheng Haozhong,Liao Peihong.Computation method of harmonic power flow via reducing dimension[J].Automation of Electric Power Systems,1996,20(1):20-22(in Chinese).
[12]  李战鹰,黄莹,李建华,等.基于非特征谐波潮流统一算法的±800 kV特高压直流输电系统非特征谐波分析[J].电力自动化设备,2009,29(1):11-14.Li Zhanying,Huang Ying,Li Jianhua,et al.Non-characteristic harmonic analysis of ±800 kV UHVDC transmission system based on unified non-characteristic harmonic load flow algorithm[J].Electric Power Automation Equipment,2009,29(1):11-14(in Chinese).
[13]  种芝艺,粟小华,刘宝宏.西北电网主变充电引起青藏直流闭锁的原因分析及对策[J].电力建设,2013,34(3):88-91.Chong Zhiyi,Su Xiaohua,Liu Baohong.Analysis and countermeasures of Qinghai-Tibet DC blocking caused by main transformer charging in northwest power grid[J].Electric Power Construction,2013,34(3):88-91(in Chinese).
[14]  周佩朋,项祖涛,杜宁,等.西北750 kV电网合空变导致青藏直流闭锁故障分析[J].电力系统自动化,2013,37(10):129-133.Zhou Peipeng,Xiang Zutao,Du Ning,et al.Analysis on blocking of Qinghai-Tibet DC system caused by transformer energizing in Northwest China 750 kV grid[J].Automation of Electric Power Systems,2013,37(10):129-133(in Chinese).
[15]  刘宝宏,曹燕明,王海猷,等.青海格尔木至西藏拉萨±400 kV直流联网工程成套设计书第一册:成套设计书[R].北京:国家电网直流建设分公司,2011.
[16]  余世峰,樊纪超,杨一鸣,等.青海格尔木至西藏拉萨±400 kV直流联网工程成套设计书第三册:主回路参数[M].北京:国家电网直流建设分公司,2011:2-10.
[17]  青海电力科学研究院.柴达木换流变电站750 kV #2主变投运时电网谐波测试报告[R].西宁:青海电力科学研究院,2012.
[18]  国网北京经济技术研究院.青海–西藏直流联网工程格尔木换流站加装HP2滤波器成套设计报告[R].北京:国网北京经济技术研究院,2012.
[19]  刘心旸,蒋维勇,李亚男.±1 100 kV特高压直流输电工程直流系统谐振特性与抑制措施[J].电网技术,2015,39(1):202-207.Liu Xinyang,Jiang Weiyong,Li Yanan.±1 100 kV UHVDC±resonance characteristics of DC transmission line in power transmission project and its suppression measures[J].Power System Technology,2015,39(1):202-207(in Chinese).

Full-Text

comments powered by Disqus

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133

WeChat 1538708413