Estimation of weather impacts on distribution-transformer energy losses.

摘要

Current U.S. Department of Energy (DOE) estimates of electrical distribution-transformer (DT) energy-losses do not incorporate weather effects. While the industry-standard Institute of Electrical and Electronics Engineers (IEEE) model only includes ambient temperature impacts, it excludes wind and solar heating effects, which may significantly alter DT energy losses. In the current study, the IEEE model is modified to incorporate these effects, and results are compared for a variety of DTs sample in several climatic regions. Results show that DT temperatures, fluxes, and aging rates are dependent on weather impacts, with specific impacts dependent on climate regime. Resulting estimates of weather impacts on DT energy losses will be used by DOE to evaluate the errors that result from ignoring weather impacts.