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 

一种降低直流输电换相失败概率的控制方法

DOI: 10.13335/j.1000-3673.pst.2015.01.012, PP. 76-82

Keywords: 高压直流输电,换相失败,功率分量检测,电流指令速动

Full-Text   Cite this paper   Add to My Lib

Abstract:

为减小直流输电系统发生换相失败的概率,分析了换相失败机理,得出促进换相过程的关键。首先,基于数字信号处理器实时监测装置,结合故障电压和故障电流特征,提出了一种功率分量检测法。然后,利用该方法的故障检测结果,提出了一种基于电流指令速动的控制方法,能迅速减小直流电流。理论分析表明,功率分量检测法具有更好的灵敏性与准确性,而电流指令速动控制不仅能快速减小换相面积,而且在一定程度上增大了换相电压。在PSCAD/EMTDC中搭建了双馈入直流输电系统模型。仿真结果与理论分析相符,证明所提出的功率分量检测法与电流指令速动控制具有一定的优越性,能降低换相失败发生概率,减小换相失败的影响范围。

References

[1]  张保会,尹项根.电力系统继电保护[M].北京:中国电力出版社,2005:24-26,99-102.
[2]  徐政.交直流电力系统动态行为分析[M].北京:机械工业出版社,2004:39-42.
[3]  Hansen,Havemann H.Decreasing the commutation failure frequency in HVDC transmission systems[J].IEEE Trans on Power Delivery,2000,15(3):1022-1026.
[4]  袁阳,卫志农,王华伟,等.基于直流电流预测控制的换相失败预防方法[J].电网技术,2014,38(3):565-570.Yuan Yang,Wei Zhinong,Wang Huawei,et al.A DC current predictive control based method to decrease probability of commutation failure[J].Power System Technology,2014,38(3):565-570(in Chinese).
[5]  Kundur P.电力系统稳定与控制[M].北京:中国电力出版社,2002:140.
[6]  赵畹君.高压直流输电工程技术[M].2版.北京:中国电力出版社,2011:124.
[7]  Lee HauAik D,Anderson G.Voltage stability analysis of multi-infeed HVDC systems[J].IEEE Trans on Power Delivery,1997,12(3):1309-1316.
[8]  Lee HauAik D,Anderson G.Power stability analysis of multi-infeed HVDC systems[J].IEEE Trans on Power Delivery,1998,13(3):923-931.
[9]  Thio C V,Davies J B,Kent K L.Commutation failures in HVDC transmission systems[J].IEEE Trans on Power Delivery,1996,11(2):946-953.
[10]  Zou Gang,Zheng Jianchao,Chen Xiangxun.Study on commutation failure in an HVDC inverter[C]//Proceeding of International Conference on Power System Technology,Beijing,1998:503-506.
[11]  王晶.高压直流输电典型故障控制保护策略的研究[D].北京:华北电力大学,2012.
[12]  陈修宇.多馈入直流系统电压相互作用及其影响[D].北京:华北电力大学,2012.
[13]  Rahimi E,Gole A M,Davies J B,et al.Commutation failure analysis in multi-infeed HVDC systems[J].IEEE Trans on Power Delivery,2011,26(1):378-384.
[14]  邵瑶,汤涌.采用多馈入交互作用因子判断高压直流系统换相失败的方法[J].中国电机工程学报,2012,32(4):108-114.Shao Yao,Tang Yong.A commutation failure detection method for HVDC systems based on multi-infeed interaction factors[J].Proceedingsof the CSEE,2012,32(4):108-114(in Chinese).
[15]  吴萍,林伟芳,孙华东,等.多馈入直流输电系统换相失败机制及特性[J].电网技术,2012,36(5):269-274.Wu Ping,Lin Weifang,Sun Huadong,et al.Research and electromechanical transient simulation on mechanism of commutation failure in multi-infeed HVDC power transmission system[J].Power System Technology,2012,36(5):269-274 (in Chinese).
[16]  郭春义,张岩坡,赵成勇,等.STATCOM对双馈入直流系统运行特性的影响[J].中国电机工程学报,2013,33(25):99-106.Guo Chunyi,Zhang Yanpo,Zhao Chengyong,et al.Impact of STATCOM on the operating characteristics of double-infeed HVDC system[J].Proceedings of the CSEE,2013,33(25):99-106(in Chinese).
[17]  Guo Chunyi ,Zhang Yi ,Gole A M.Analysis of dual-infeed HVDC with LCC-HVDC and VSC-HVDC[J].IEEE Trans on Power Delivery,2012,27(3):1529-1537.
[18]  陈树勇,李新年,余军,等.基于正余弦分量检测的高压直流换相失败预防方法[J].中国电机工程学报,2005,25(14):1-6.Chen Shuyong,Li Xinnian,Yu Jun,et al. A method based on the sin-cos components detection mitigates commutation failure in HVDC[J].Proceedings of the CSEE,2005,25(14):1-6(in Chinese).
[19]  金雪芬,戴朝波,武守远,等.根据线路电流斜率快速识别故障信号的方法[J].电网技术,2009,33(9):29-34.Jin Xuefen,Dai Chaobo,Wu Shouyuan,et al.Fast fault signal identification method using line current slope[J].Power System Technology,2009,33(9):29-34(in Chinese).
[20]  杨尚瑾,武守远,戴超波.基于电流波形曲率的短路故障快速识别方法[J].电网技术,2013,37(2):551-556.Yang Shangjin,Wu Shouyuan,Dai Chaobo.A method to fast recognize short-circuit fault based on curvature of line current waveform[J].Power System Technology,2013,37(2):551-556(in Chinese).

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133