中国电机工程学报2017，Vol.37Issue(10)：2861-2868,8.DOI:10.13334/j.0258-8013.pcsee.160736
一种基于常规直流输电系统的混合直流改造方案
A Novel Refurbishment Scheme for Reforming the Existing LCC-HVDC to Hybrid HVDC
黄伟煌 1饶宏 1黄莹 1李明 1刘涛1
作者信息
- 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),广东省广州市510080
- 折叠
摘要
Abstract
Refurbishing the existing line commutated converter based HVDC (LCC-HVDC) by reforming receiving-end station to voltage source converter based HVDC (VSC-HVDC) station,is an economical scheme to form a hybrid HVDC system.This paper introduced a novel refurbishment scheme which simply replaces the LCC valves with VSC valves,reserving converter transformers and bushings of LCC-HVDC.This can utilize the existing equipments and reduce the cost.Several main connection schemes were compared firstly.Based on the results,designing process of main circuit parameters of the proposed refurbishment scheme was elaborated.The designing results show that the proposed refurbishment scheme can greatly reduce the request for sub-module capacitor and current capacity,therefore reduce cost and volume of valves.Finally,simulation results in PSCAD/EMTDC verify the feasibility of proposed refurbishment scheme and the validity of main circuit parameters designing.关键词
电网换相换流器高压直流/柔性直流/混合直流/改造方案/换流变压器Key words
line commutated converter based HVDC (LCC-HVDC)/voltage source converter based HVDC (VSC-HVDC)/hybrid HVDC/refurbishment scheme/converter transformer分类
信息技术与安全科学引用本文复制引用
黄伟煌,饶宏,黄莹,李明,刘涛..一种基于常规直流输电系统的混合直流改造方案[J].中国电机工程学报,2017,37(10):2861-2868,8.
