Application of time-limited ratings to underground cables to enable life extension of network assets
| Autor: | David Clements, Pierluigi Mancarella, Richard Ash |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Optimal design
Engineering business.industry 020209 energy Reliability (computer networking) Ring network 02 engineering and technology Maintenance engineering Reliability engineering Term (time) Life extension Electric power system 0202 electrical engineering electronic engineering information engineering Contingency business |
| Zdroj: | 2016 International Conference on Probabilistic Methods Applied to Power Systems (PMAPS). |
| DOI: | 10.1109/pmaps.2016.7764146 |
| Popis: | Underground cables have thermal inertia that can be leveraged to tolerate loading beyond 100% of capacity for short periods of time. These short term overloads allow the calculation of time-limited ratings for cables that are routinely underutilized such as those in N-1 configurations. These ratings are often not considered as part of distribution network modelling and only sometimes applied by network operators. Recent advances in cable rating technology allow network operators to calculate time-limited ratings in real time to adapt to contingency situations on their network. This paper proposes a methodology for determining the benefits of using time-limited ratings on an 11kV ring network. A case study shows how increasing loadings can be mitigated by the use of time-limited ratings and how this affects the economics of operating and planning a power system, including for avoiding network reinforcement. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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