Improved controls for LCC-VSC hybrid HVDC system

2013 International conference on Circuits, Controls and Communications (CCUBE) Pub Date : 2013-12-01 DOI:10.1109/CCUBE.2013.6718566

P. Manohar, Vijetha Kelamane, D. Kaushik, W. Ahmed

{"title":"Improved controls for LCC-VSC hybrid HVDC system","authors":"P. Manohar, Vijetha Kelamane, D. Kaushik, W. Ahmed","doi":"10.1109/CCUBE.2013.6718566","DOIUrl":null,"url":null,"abstract":"High Voltage Direct Current (HVDC) transmission systems continue to be an excellent asset in modern power systems. The classical HVDC system and VSC-HVDC system showed greater advantages in power transmission and industry. Meanwhile major disadvantages like commutation failure, reactive power requirement in classical system and high cost, high switching losses and inability to handle DC line fault in VSC-HVDC system lead to the invention of LCC-VSC hybrid HVDC system. With no commutation failure, less reactive power requirement and reduced losses, the hybrid system is best suited for unidirectional power transmission scenarios, such as power transmission to islands and remote load centers, where the construction of new transmission lines is prohibitively expensive. The present work aims to study various aspects of hybrid HVDC system. The emphasis will be on developing appropriate control schemes at both rectifier and inverter terminals for efficient operation of the hybrid system and achieve best performance of the system under steady state and transient condition. The simulation study is carried in the PSCAD/EMTDC environment.","PeriodicalId":194102,"journal":{"name":"2013 International conference on Circuits, Controls and Communications (CCUBE)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"23","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2013 International conference on Circuits, Controls and Communications (CCUBE)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CCUBE.2013.6718566","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 23

Abstract

High Voltage Direct Current (HVDC) transmission systems continue to be an excellent asset in modern power systems. The classical HVDC system and VSC-HVDC system showed greater advantages in power transmission and industry. Meanwhile major disadvantages like commutation failure, reactive power requirement in classical system and high cost, high switching losses and inability to handle DC line fault in VSC-HVDC system lead to the invention of LCC-VSC hybrid HVDC system. With no commutation failure, less reactive power requirement and reduced losses, the hybrid system is best suited for unidirectional power transmission scenarios, such as power transmission to islands and remote load centers, where the construction of new transmission lines is prohibitively expensive. The present work aims to study various aspects of hybrid HVDC system. The emphasis will be on developing appropriate control schemes at both rectifier and inverter terminals for efficient operation of the hybrid system and achieve best performance of the system under steady state and transient condition. The simulation study is carried in the PSCAD/EMTDC environment.

查看原文本刊更多论文

LCC-VSC混合高压直流系统的改进控制

高压直流(HVDC)输电系统仍然是现代电力系统的一项重要资产。传统的高压直流输电系统和VSC-HVDC系统在输电和工业中显示出更大的优势。同时，lc - VSC-HVDC系统存在着传统系统的换相故障、无功要求高以及成本高、开关损耗大、无法处理直流线路故障等缺点，导致lc - VSC-HVDC混合系统的出现。由于没有换相故障，无功功率需求更少，损耗更低，混合系统最适合单向电力传输场景，例如向岛屿和远程负载中心的电力传输，这些地方的新输电线路的建设成本过高。本工作旨在研究混合直流系统的各个方面。重点是在整流和逆变两端制定适当的控制方案，以使混合系统有效运行，并使系统在稳态和暂态条件下达到最佳性能。仿真研究在PSCAD/EMTDC环境下进行。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

2013 International conference on Circuits, Controls and Communications (CCUBE)

自引率

0.00%

发文量