Abstract
Fault-initiated islanding can significantly improve the reliability of power supply in distribution networks, by allowing (parts of) distribution networks to operate as islanded microgrids in case of a contingency. The probability of generation adequacy and transient stability of these microgrids has to be critically evaluated during planning of fault-initiated islanding, in order to compare the incurred reliability and cost. The analysis of the probability of transient stability is challenging, as it generally requires a very large set of detailed time-domain simulations to be performed. Stability during the fault-initiated islanding transient has therefore not been considered during probabilistic analysis in the literature. Additionally, the beneficial properties for the value of fault-initiated islanding have not yet been identified. To address these issues, a methodology for probabilistic adequacy and transient stability analysis with a low computational burden is proposed in this paper, and used for rigorous sensitivity analysis of a modified fault-initiated islanding RBTS Bus 2 benchmark distribution network. The results show that the probabilistic adequacy and transient stability analysis methodology is accurate with a relatively low computational burden, and that fault-initiated islanding is most valuable in networks with a controllable and total generation capacity of at least 14.7% and 58.9% of the average load power respectively, moderate to high fault probability, and medium to high load cost.
Original language | English |
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Title of host publication | 2021 IEEE Madrid PowerTech, PowerTech 2021 |
Publisher | Institute of Electrical and Electronics Engineers |
Number of pages | 6 |
ISBN (Electronic) | 978-1-6654-3597-0 |
DOIs | |
Publication status | Published - 29 Jul 2021 |
Event | 2021 IEEE PowerTech Madrid - Madrid, Madrid, Spain Duration: 28 Jun 2021 → 2 Jul 2021 |
Conference
Conference | 2021 IEEE PowerTech Madrid |
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Abbreviated title | PowerTech 2021 |
Country/Territory | Spain |
City | Madrid |
Period | 28/06/21 → 2/07/21 |
Keywords
- Islanding
- microgrids
- power system planning
- power system reliability
- transient stability