Abstract
Integration of distributed generation (DG) such as wind turbines into distribution system is increasing all around the world, because of the flexible and environmentally friendly characteristics. However, DG integration may change the pattern of the fault currents in the distribution system and as a result bring challenges to the network protection system. This problem has been frequently discussed in the literature, but mostly considering only the balanced fault situation. This paper presents an investigation on the influence of full converter based wind turbine (WT) integration on fault currents during both balanced and unbalanced faults. Major factors such as external grid short circuit power capacity, WT integration location, connection type of WT integration transformer are taken into account. In turn, the challenges brought to the protection system in the distribution network are presented as well. The results in this paper are based on mathematical analysis and simulation study in DIgSILENT PowerFactory.
| Original language | English |
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| Title of host publication | Proceedings of the 2014 International Conference on Power System Technology (POWERCON) |
| Number of pages | 6 |
| Publisher | IEEE Press |
| Publication date | Oct 2014 |
| Pages | 2921 - 2926 |
| DOIs | |
| Publication status | Published - Oct 2014 |
| Event | 2014 International Conference on Power System Technology (POWERCON2014) - Chengdu, China Duration: 20 Oct 2014 → 22 Oct 2014 |
Conference
| Conference | 2014 International Conference on Power System Technology (POWERCON2014) |
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| Country/Territory | China |
| City | Chengdu |
| Period | 20/10/2014 → 22/10/2014 |