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| Content Provider | IET Digital Library |
|---|---|
| Author | Yang, Yayu Tai, Ningling Fan, Chunju Yang, Lian Chen, Shi |
| Abstract | Direct-current (DC) line faults are a major issue in ultra-high-voltage direct-current systems due to the complex and wicked environment. Thus, reliably detecting and isolating the DC line faults are not a trivial engineering task. This study proposes a DC line protection scheme based on resonance frequency. The scheme mainly consists of a fault discrimination criterion and a faulty pole selection criterion. The fault discrimination criterion is based on the phase of the resonance frequency impedance, and it is deployed to differentiate the faults on the protected DC line from the external faults. The faulty pole selection criterion is based on the ratio of the resonance frequency currents, and it is employed to select the faulty pole. The sensitivity analysis demonstrates that the performance of the proposed protection is promising. The simulations carried out in PSCAD/EMTDC under various conditions verify the feasibility and validity of the proposed protection scheme. |
| Starting Page | 318 |
| Ending Page | 327 |
| Page Count | 10 |
| ISSN | 17518687 |
| Volume Number | 12 |
| e-ISSN | 17518695 |
| Issue Number | Issue 2, Jan (2018) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-gtd/12/2 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2017.0488 |
| Journal | IET Generation, Transmission & Distribution |
| Publisher Date | 2017-08-30 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | D.C. Transmission DC Line Fault Detection DC Line Fault Isolation DC Line Protection DC Power Transmission Fault Discrimination Criterion Fault Location Faulty Pole Selection Criterion Power System Protection Power System Simulation Power Transmission Cables Power Transmission Fault Power Transmission Line Power Transmission Protection PSCAD/EMTDC Simulations Resonance Frequency Current Ratio Resonance Frequency Impedance Resonance Frequency-based Protection Sensitivity Analysis Ultra-high-voltage Direct-current Transmission Line |
| Content Type | Text |
| Resource Type | Article |
| Subject | Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering |
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