±1100kV准东—四川特高压直流输电工程主回路参数设计  

Main circuit parameter design of Zhundong-Sichuan ±1 100 kV UHVDC power transmission project

作　　者：邓旭[1] 王东举[1] 沈扬[2] 周浩[1] 陈锡磊 孙可[4] 

机构地区：[1]浙江大学电气工程学院,浙江杭州310027 [2]浙江省电力设计院,浙江杭州310014 [3]浙江省慈溪市供电局,浙江慈溪315300 [4]浙江省电力公司,浙江杭州310007

出　　处：《电力自动化设备》2014年第4期133-140,共8页Electric Power Automation Equipment

基　　金：国家重点基础研究发展计划(973计划)项目(2011CB-209405)~~

摘　　要：根据直流输电理论并结合特高压直流输电系统特点设计准东—四川±1100 kV直流输电工程的主回路参数。给出了换流站换流器等关键设备的基本参数,换流器的接线方案推荐双12脉动换流器串联的接线方案。研究结果表明:系统最大直流运行电压为1112 kV,最大直流电流为5.357 kA,最小直流电流为0.44 kA;两端换流站换流变压器的短路阻抗均取为24%,整流站和逆变站变压器额定容量分别为542.11 MV·A和521.59 MV·A,分接头档位分别为+28/4和+20/5;额定运行工况下,整流站和逆变站的无功消耗分别为6 916 Mvar和6 693 Mvar。The main circuit parameters are designed based on the DC transmission theory and characteristics of UHVDC transmission system for Zhundong-Sichuan ±1 100 kV UHVDC transmission project.The basic parameters of key equipments are given and the wiring scheme of two twelve-pulse converters connecting in series is suggested.Research results show that,the maximum DC operating voltage is 1 112 kV,the maximum DC is 5.357 kA,the minimum DC is 0.44 kA.The short circuit impedance of converter transformer is taken as 24 ％ for both ends of transmission line ;the rated capacity of converter transformer at rectifier station is 542.11 MV·A and that at inverter station is 521.59 MV·A;the transformer tap position of rectifier and inviter stations is ＋28/4 and ＋20/5 respectively;the reactive power consumption of rectifier and inverter stations is 6916 Mvar and 6693 Mvar respectively under rated power operation.

关 键 词：特高压输电 直流输电 参数设计 整流器 逆变器 空载直流电压 无功消耗 

分 类 号：TM72[电气工程—电力系统及自动化]