Influence of Ambient Temperature on Transformer Overloading During Cold Load Pickup
2013 (English)In: IEEE Transactions on Power Delivery, ISSN 0885-8977, E-ISSN 0885-8877, Vol. 28, no 1, 153-161 p.Article in journal (Refereed) Published
This paper proposes a method to investigate the socioeconomical aspects of transformer overloading during a cold load pickup (CLPU) in residential areas. The method uses customer damage functions to estimate the cost for their power interruption and a deterioration model to estimate the cost for transformer wear due to the CLPU. A thermodynamic model is implemented to estimate the peak and the duration of cold residential load. A stochastic differential equation is used to capture the volatility of the load and to estimate the probability for transformer overloading. In a numerical example, an optimal cold load pickup for a two-area system is demonstrated where transformer overloading is allowed. In this example, an ambient temperature threshold is identified, where transformer overloading is socioeconomically beneficial.
Place, publisher, year, edition, pages
2013. Vol. 28, no 1, 153-161 p.
Cold load pickup (CLPU), restoration, transformer aging, transformer loading
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-117646DOI: 10.1109/TPWRD.2012.2219079ISI: 000312889500018ScopusID: 2-s2.0-84871718818OAI: oai:DiVA.org:kth-117646DiVA: diva2:602778
QC 201506252013-02-042013-02-012015-06-25Bibliographically approved