An efficient method for estimating energy losses in distribution's feeder

• Main Authors: Ibrahim, Khairul Anwar, Masdzarif, Nur Diana Izzani, Gan, Chin Kim, Mau, Teng Au, Baharin, Kyairul Azmi, Emran, Nurul Akmar, Zainal Abidin, Zaheera
• Format: Article
• Language: English
• Published: Institute of Advanced Engineering and Science 2023
• Online Access: http://eprints.utem.edu.my/id/eprint/27559/2/0028223102023.PDF; http://eprints.utem.edu.my/id/eprint/27559/; https://www.beei.org/index.php/EEI/article/view/5261/3346

This paper explains a simple and efficient methodology for calculating monthly energy losses (EL) using the load loss factor technique and a representative composite load profile. One of the important benefits of the proposed work is a simpler, more efficient and less rigorous method to estimate the system-wide energy loss of an extensive distribution network with reasonable accuracy. The sum of all EL provided by each feeder section is used to calculate the total feeder EL. A base case feeder with a typical cable type and power factor is used to generate regression equations, a peak power loss function to estimate the EL. A case study is then used to show the models and techniques that have been established. The result indicates a high level of agreement with the time-series load flow simulations (smaller than 10% deviations). With this model, an approach to estimate the EL of all radial feeders of various configurations and characteristics could be extended and implemented. The spreadsheet approach is ideal for completing a quick energy audit of existing distribution feeder EL and determining the sensitivity of distribution network efficiency to changes in feeder sections and load characteristics.