轻型直流输电技术在我国电网中的应用.pdf

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对轻型直流输电运行原理和技术特点、控制模式以及控制系统进行简要的介绍和分析, 根据我国电网的特点, 对其在我国电网中的应用
42 整流侧第1回500y直流逆变侧换流母线1 10 ⊙因 0.5968H 0.5968H 2.592.5 图C 0.042H 6 整流侧 变侧 ⊙图直流电。图(1换流得线2 未投入 HVDC light 整流侧 逆变侧 04 投入 HVDC light 059 0590042H 整流侧 第2回500kV直流 变侧 0001002003004005006007008009001000 ⊙← 0.5968H 0.5968H 图 时间/s 26.0uF 换流母线3 图7故障前后第2回交流线路(靠逆变侧)电压 图5模型2 Fig 7 Inverter side's voltages of line 2 Fig 5 Model 2 HVDC light 150kv, 89 500kV 150MW。 HⅤDC 2.2 HVDC ligh 2.2.1 40 ms HVDC light s HVDC light 25 ms 100 msc 1.O0s HVDC light HⅤ DC light 8.00 HⅤ DC light HVDC light 未投入 HVDC light 投入 HVDC light LIV DC light HVDC light HVDC light 0.9 基袖回 3.0 1901952002052.102.15220225230235240 时间/s 2.5 图8第1回500 KVHVDO熄弧角测量值 2.0 Fig 8 Extinction angle of the first 500 kV HVDC 未投入 HVDC light 投入 HVDC light 未投入 HVDC light 投入 HVDC light 0.5 0o1002b030040050 时6007008009001000 图6故障前后第2回交流线路的有功功率 Fig 6 Active power of line 2 2.2.2 1901952002052.102.152202.25230235240 时间/s HVDC light 图9第2回500 KV HVDC熄弧角测量值 2.00s 50 ms Fig 9 Extinction angle of the second 500 KV HVDC o1994-2010ChinaAcademicJournalElectronicPublishingHousealLrightsreservedhttp://www.cnki.net 3 WEIMERS L HVDC light-A new technology for a better environment IVDC ICJ/IEEE Power Engineering Review. 1998(8): 19-20. ight 4 ERIKSSON K Operational experience of HvDC light TCIAC-DC Power TransImission 28-30 Novenrler 2001 Conference publicalion No.485IEE2001:205-210 5 ASPLUND G. Applicaliun of HVDC light Lo power systeM enhancement [CIPower Engineering Society Winter Meeting, 2000: 2498-2503 6] VSC IGBT IlVDC light [J]. ,2007,31(6):45-50 YAN Gan-gui. CHEN Tao, MU Gang, et al. Dynamic modeling and nonlinear-decouple control of IIVI)C light system[J]. Power System Technology,2007,31(6):45-50. [I 2005,29(16):1-5. ZHENG Chao, ZHOU Xiao-xin, LI Ruo-mei Dynamic modeling and transient simulation for voltage source converter based lIVIC[J Power System Technology, 2005, 29(16): 1-5 HYDO LI 2007,31(8):1-7 TANG Guany-lu. A review of CIGRE'2006 on high voltage direct current(HVDC )and power electronic(PE)technologies[J].Automation of Electric Power Systems, 2007. 31(8): 1-7 IIVDC 004,30(3):46-49 XU Zheng, WANG Hong-lei Problems uf mulliple HvDC links terminating in an AC system[J]. Water Power, 2004, 30(3): 46-49. LJI 10] (3):32-35 ,1998.22(2):16-19 ZHANG Gui-bin, XU Zheng. New development of direct transmission XU Zheng. AC/DC and DC/DC interactions of multiple HVDC links technolngy[J ]. I:lectric Pwer, 2000, 3.3(3): 32-35 terminating in the same AC system [J]. Power System Technology [2] 1998,22(2):16-19. [J] ,2003,27(4):77-81. 11 CIGRE Working group 14.02. The Cigre. TIVnC henchmark model-a LI Gcng-yin. LU Pcng-fci, LI Guang-kai, et al. Devclopment and ncw proposal with revised paramctcrs[I]. Elctra, 1994(157): 61-66 prospects for HVDC light [J]. Automation of Electric Power Systems 2003,27(4):7 Investigation on applying HvdC light to China power grid WANG Hai-jun, CHEN Qian Test Maintenance Center of Extra High Voltages Power Transmission Company of Southem China Power Grid, Guangzhou 5 10633, China Abstract: After brief introduction and analysis to technique characteristics, the control modes and control system of HVDC light, a discussion about applying HVDC light to China power grid was presented. Models of applying HVDC light to AC/DC hyhrid system and Multi-Infeed Direct Current system were built by PSCAD/EMTDC. The simulation results show that HVDC light can improve effectively the transient stabilily of the AC/DC hybrid sysTen and the MIDC syslem due lo its contribution Lo supporting vollage, damping ofthe puwer oscillations. Key words: HVDC light; system interconnection; MIDC system; PSCAD/EMTDC 35 o1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreservedhttp://www.cnki.net

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