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| Content Provider | IET Digital Library |
|---|---|
| Author | Zheng, Zhiqin Shao, Baozhu Yu, Tongwei Liu, Yakun Song, Guobing |
| Abstract | The distance protection method with parameter identification can distinguish internal fault from external fault correctly and avoid the transient overreach effectively based on the accurate secondary signal data. However, due to the limitation of the frequency band of the electromagnetic transformer, the secondary signal distortion is caused when the transient signal is transmitted, which limits the application of the parameter identification principle. Here, a matching method of line model and transformer type for relay protection is proposed. Analysed the appropriate frequency band of line model and transformer linear transfer frequency band and the electrical signal beyond their intersection should be filtered out. The simulation results show that this method improves the accuracy of the operation. This method not only makes sense to the practical application of distance protection based on the principle of parameter identification, but also has some reference value to other engineering applications. |
| Starting Page | 1750 |
| Ending Page | 1753 |
| Page Count | 4 |
| 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.2018.8818 |
| Journal | The Journal of Engineering |
| Publisher | The Institution of Engineering and Technology |
| Publisher Date | 2018-10-23 |
| Access Restriction | Open |
| Rights License | Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/) |
| Subject Keyword | Accurate Secondary Signal Data Appropriate Frequency Band Distance Protection Method Electrical Signal Electromagnetic Transformer External Fault Fault Location Internal Fault Line Model Matching Method Parameter Estimation Parameter Identification Principle Power System Fault Power System Protection Power System Transients Power Transformer Protection Relay Protection Secondary Signal Distortion Transformer And Reactors Transformer Characteristic Transformer Linear Transfer Frequency Band Transient Signal |
| Content Type | Text |
| Resource Type | Article |
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