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Content Provider | IET Digital Library |
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Author | Shen, Yangwu Deng, Xiangtian Zhang, Lihong Tang, Jinrui Ye, Jun |
Abstract | The rapid development of ultra-high voltage (UHV) AC–DC interconnected system has brought with it some new features, such as characteristics of distributed parameters becoming more distinct, internal parameters changing faster, and harmonic becoming more unstable, which pose new challenges for the correct operation of relay protection and automation devices. The aim here is to study the application of active current differential protection method in UHV AC–DC interconnected system. Firstly, the negative influence of UHVDC connection on the effectiveness of traditional current protection method is analysed. Next, the principle of active current differential protection method is introduced, which shows that this method is less susceptible to the variation of system parameters and unstable harmonics. On this basis, simulations have been conducted on PSCAD platform to explore the application of this method on AC transmission lines in case of various fault types. The simulation results show that the active current differential protection can increase the sensitivity of protection of UHV AC–DC interconnected system. |
Starting Page | 3127 |
Ending Page | 3131 |
Page Count | 5 |
Volume Number | 2019 |
e-ISSN | 20513305 |
Issue Number | Issue 16, Mar (2019) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/conferences/cn-adc-2018 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8466 |
Journal | The Journal of Engineering |
Publisher | The Institution of Engineering and Technology |
Publisher Date | 2018-10-29 |
Access Restriction | Open |
Rights License | Creative Commons Attribution-No Derivs License (http://creativecommons.org/licenses/by-nd/3.0/) |
Subject Keyword | A.c. Transmission AC Transmission Line Active Current Differential Protection Method Automation Device D.C. Transmission Distributed Parameter Characteristic Harmonics HVDC Power Transmission Power Supply Quality Power System CAD Power System Control Power System Economics Power System Harmonics Power System Interconnection Power System Managemen Power System Operation Power System Planning And Layout Power System Protection Power System Stability Power Transmission Line Power Transmission Protection PSCAD Platform Relay Protection UHV AC–DC Interconnected System Ultrahigh Voltage AC–DC Interconnected System |
Content Type | Text |
Resource Type | Article |
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