This paper deals with the investigation of the performance of distance protection in a 400 kV transmission line for a system with high penetration of photovoltaic sources (PV). A grid with a PV plant is designed in RSCAD software environment, which is supported by RTDS. By performing hardware-in-the-loop tests, two commercial relays are investigated in real-time. Firstly, the distance protection function is tested with a synchronous generator to check the response of the studied system and validate correct relay settings. Afterwards, the synchronous generator is replaced by a generic PV plant model. The impact of different fault locations, fault types and fault impedances are studied. Finally, the critical scenarios in the power system are determined for which a relay fails to detect a fault. Many simulations are performed and cases, when a relay unexpected operations, are identified. Relevant solutions to overcome these problems are suggested.
|Title of host publication||2019 IEEE Milan PowerTech, PowerTech 2019|
|Number of pages||6|
|Publication status||Published - 2019|
|Event||2019 IEEE Milan PowerTech, PowerTech 2019 - Milan, Italy|
Duration: 23 Jun 2019 → 27 Jun 2019
|Name||2019 IEEE Milan PowerTech, PowerTech 2019|
|Conference||2019 IEEE Milan PowerTech, PowerTech 2019|
|Period||23/06/19 → 27/06/19|
Bibliographical noteGreen Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.
- Distance protection function
- Hardware-in-the-loop test
- Photovoltaic plant
- Real-time digital simulation
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