{"title":"Small Signal Stability Analysis of a four Machine System with Strategic Placement of Monopolar LCC-HVDC link","authors":"O. Oni, A. Swanson, R. P. Carpanen","doi":"10.1109/ROBOMECH.2019.8704735","DOIUrl":null,"url":null,"abstract":"This paper presents a small signal stability analysis of Line Commutated Converter, High Voltage Direct Current (LCC HVDC) system when interconnected at different buses in a Kundur two-area four-machine system. The swing equation of a single machine, which was represented as a generator connected to a large infinite network and two incoherent two-area machines were analysed. A time domain simulation study was carried out on the system during a small signal disturbance on a synchronous generator to determine the damping characteristics and the amplitude of oscillations when LCC-HVDC model was connected at different strategic bus on the network. The results show a more quickly damped oscillation and more stable operating mode with HVDC link compare to HVAC lines.","PeriodicalId":344332,"journal":{"name":"2019 Southern African Universities Power Engineering Conference/Robotics and Mechatronics/Pattern Recognition Association of South Africa (SAUPEC/RobMech/PRASA)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2019 Southern African Universities Power Engineering Conference/Robotics and Mechatronics/Pattern Recognition Association of South Africa (SAUPEC/RobMech/PRASA)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ROBOMECH.2019.8704735","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3
Abstract
This paper presents a small signal stability analysis of Line Commutated Converter, High Voltage Direct Current (LCC HVDC) system when interconnected at different buses in a Kundur two-area four-machine system. The swing equation of a single machine, which was represented as a generator connected to a large infinite network and two incoherent two-area machines were analysed. A time domain simulation study was carried out on the system during a small signal disturbance on a synchronous generator to determine the damping characteristics and the amplitude of oscillations when LCC-HVDC model was connected at different strategic bus on the network. The results show a more quickly damped oscillation and more stable operating mode with HVDC link compare to HVAC lines.
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