柔性直流分极接入220kV电网的典型模式探讨  

Discussion on Typical Mode of Separating Pole Connection of VSC-HVDC Transmission System With 220kV Power Grid

作　　者：聂金峰 饶宏 周保荣 李鸿鑫 NIE Jinfeng;RAO Hong;ZHOU Baorong;LI Hongxin(State Key Laboratory of HVDC（Electric Power Research Institute,China Southern Power Grid）,Guangzhou 510530,Guangdong Province,China)

机构地区：[1]直流输电技术国家重点实验室(南方电网科学研究院有限责任公司)

出　　处：《电网技术》2018年第9期2885-2891,共7页Power System Technology

基　　金：国家重点研发计划项目(2016YFB0901001)~~

摘　　要：在深入分析现有220k V电网典型接线型式的基础上,提出了可改善接入点近区电网网架结构的柔性直流分极接入220k V电网的典型模式,并以某直流改造工程为例进行了仿真验证。仿真结果表明,文中提出的典型模式优化了柔性直流落点近区的网架结构,改善了电网潮流分布,降低了输电损耗,提高了电网的电压稳定水平。Based on deep analysis of typical connection mode of existing 220 k V power grid, a novel mode of VSC-HVDC separating pole connection with 220 k V power grid was proposed to optimize structure of the grid near receiving terminal converter station. Then, taking system connection schemes of a HVDC transmission system as examples, simulations were carried out. Simulation results proved that the proposed connection mode optimized grid structure, improved power flow distribution and voltage stability, and reduced transmission loss.

关 键 词：柔性直流 分极接入 网架结构优化 电压稳定 

分 类 号：TM721.1[电气工程—电力系统及自动化]