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电网技术  2013 

分时段直流多落点系统紧急及阻尼协调控制

, PP. 808-813

Keywords: 直流多落点,紧急控制,最大能量耗散,最优变目标控制,阻尼控制,Prony辨识

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Abstract:

高压直流输电(highvoltagedirectcurrent,HVDC)由于快速响应和短时过载特性对紧急控制或功率突然严重缺额地区进行紧急功率支援作用巨大,同时能很好解决区域振荡问题。利用PSCAD/EMTDC建立3机3直流系统的仿真模型,然后,在不添加任何直流附加控制的情况下,分别对正常运行的HVDC1、HVDC2和HVDC3的控制系统施加与功率增量对应的调制指令,利用Prony辨识分析发电机功角差,找出有效抑制交流系统振荡的直流控制点。并根据最优变目标理论,在HVDC1停运时以最大能量耗散原理为基础利用故障驱动和轨迹驱动分时段进行紧急控制和阻尼控制,研究大扰动后交直流系统恢复稳定情况。结果表明利用分时段紧急协调控制且只在有效控制点进行后时段(即第2和第3时段)直流小方式调制能有效提高系统暂态稳定,改善系统后续阻尼,防止过/欠控及后续摆阻尼降低现象发生,使系统快速恢复稳定。

References

[1]  张振,李兴源.多馈入直流输电系统的辅助频率协调控制[J].现代电力,2009,26(1):45-48. Zhang Zhen,Li Xingyuan.Auxiliary frequency coordinated for multi-infeed HVDC systems[J].Modern Electric Power,2009,26(1):45-48(in Chinese).
[2]  余涛,沈善德,任震.华中?华东多回HVDC紧急功率转移控制的研究[J].电网技术,2004,28(12):1-4. Yu Tao,Shen Shande,Ren Zhen.Research on emergency power shifting control of multi-circuit HVDC systems from Central China Power Grid to East China Power Grid[J].Power System Technology,2004,28(12):1-4(in Chinese).
[3]  程道卫,刘天琪,李兴源.多馈入直流输电系统的辅助协调控制设计[J].华东电力,2011,39(6):885-889. Cheng Daowei,Liu Tianqi,Li Xingyuan.Desigh and research of multi-agents coordinated control in multi-feed HVDC[J].East China Electric Power,2011,39(6):885-889(in Chinese).
[4]  李兴源,邵震霞,汤广福.多馈入高压直流输电系统的分散协调控制研究[J].中国电机工程学报,2005,25(16):8-12. Li Xingyuan,Shao Zhenxia,Tang Guangfu.Study on decentralized coordinated control for multi-infeed HVDC transmission systems [J].Proceeding of the CSEE,2005,25(16):8-12(in Chinese).
[5]  Pilotto L A S,Szechtman M,Wey A,et al.Synchronizing and damping torque modulation controllers for multi-infeed HVDC systems[J].IEEE Trans on Power Delivery,1995,10(3):1505-1513.
[6]  李兴源,刘取,高景德.多机电力系统再同步最优变目标控制[J].中国电机工程学报,1994,14(4):33-37. Li Xingyuan,Liu Qu,Gao Jingde.Optimal variable aim control of resynchonization in multimachine power systems [J].Proceeding of the CSEE,1994,14(4):33-37(in Chinese).
[7]  刘天琪.现代电力系统分析理论与方法[M].北京:中国电力出版社,2007:205-206.
[8]  黄震,郑超,庞晓艳,等.四川多回±800 kV直流外送系统直流有功功率协调控制[J].电网技术,2011,35(5):52-58. Huang Zhen,Zheng Chao,Pang Xiaoyan,et al.Coordination control of DC active power for multi-circuit ±800 kV DC power delivery system in Sichuan UHVAC/UHVDC hybrid power grid[J].Power System Technology,2011,35(5):52-58(in Chinese).
[9]  段瑶,陈龙,张步涵,等.华中电网的直流紧急功率支援问题[J].电网技术,2012,36(2):104-108. Duan Yao,Chen Long,Zhang Buhan,et al.Research on emergency DC power support in Central China Power Grid [J].Power System Technology,2012,36(2):104-108(in Chinese).
[10]  谢惠藩,张尧,夏成军,等.交直流互联电网直流功率调制相关问题[J].电网技术,2009,33(4):43-50. Xie Huifan,Zhang Yao,Xia Chengjun,et al.Issues related to DC power modulation in AC/DC hybrid system[J].Power System Technology,2009,33(4):43-50(in Chinese).
[11]  张英敏,陈虎,李兴源,等.基于直流功率支援因子的紧急直流功率支援策略研究[J].四川大学学报:工程科学版,2011,43(5):175-178. Zhang Yingmin,Chen Hu,Li Xingyuan,et al.Study of emergency DC power support strategy based on DC power support factor [J].Journal of Sichuan University:Engineering Science Edition,2011,43(5):175-178(in Chinese).
[12]  Jing C,McCalley J D,Kommareddy M.An energy approach to analysis of interarea oscillations in power system[J].IEEE Trans on Power Systems,1996,11(2):734-740.
[13]  汪娟娟,李鹏,傅闯.电力系统广域阻尼控制与工程应用[J],电网技术,2011,35(10):29-35. Wang Juanjuan,Li Peng,Fu Chuang.Review of research on wide-area damping control and its engineering application[J].Power System Technology,2011,35(10):29-35(in Chinese).
[14]  徐梅梅,李兴源,王渝红,等.德宝直流调制对四川电网阻尼特性的影响[J].电力系统保护与控制,2010,38(23):142-146. Xu Meimei,Li Xingyuan,Wang Yuhong,et al.Impact on the damping characteristics of Sichuan power grid by Debao DC modulation [J].Power System Protection and Control,2010,38(23):142-146(in Chinese).
[15]  Szechtman M,Wess T,Thio C V,et al.A benchmark model for HVDC Control studies[J].Electra,1991(135):55-73.
[16]  Faruque M O,Zhang Yuyan,Dinavahi V.Detailed modeling of CIGRE HVDC benchmark system using PSCAD/EMTDC and PSB/Simulink[J].IEEE Trans on Power Delivery,2006,21(1):378-387.
[17]  李兴源,刘红超,陈凌云.南方电网多馈入直流与交流并联系统的稳定与控制研究[R].成都:西南电力设计院,四川大学,2002.

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