Abstract
Restructuring in the electrical distribution utilities, the loss management is one of the critical activities to enhance network efficiency. Accordingly, management of technical loss would be the main target of the asset managers. For loss management, the usual methods of loss calculation and estimation need numerous data which is not used to real networks. In this research, a practical method for loss management is introduced from the viewpoint of components’ supply chain to the network. For this purpose, sub-indictors are extracted using focus group for each process of this chain and their probability distribution functions are calculated. Then, permissible values of sub-indicators are determined by the Delphi method and to calculate new probability functions, the deviation of each process is calculated. Finally, a real network with historical data is used here to study the proposed method. The results illustrate that the most deviation is in the sub-indicator design process about 91% in the viewpoint losses.
Highlights
The network loss index is one of the important efficiency indicators in the electric distribution system
Each of sub-indicator is compared to a permissible value which is confirmed by the experts, and regarding the obtained performance deviation, the revision and improvement in the processes will be decided by the asset manager
The other sub-indicator is defined as the average Earth System Number per Substation (ESNS) that indicates the performance of the OP process and it expressed based on the feeder length of each distribution substation as: ESNS = ESN SFL
Summary
The network loss index is one of the important efficiency indicators in the electric distribution system. Based on a set of input data processed through clustering techniques a decision tree was built, through which can be estimated with good accuracy losses for one or more distribution feeders An improved stochastic simulation method has been introduced for calculating current dependent energy losses in distribution networks by Mahmoodzadeh et al (2015). In this study, the issue of losses is investigated from the viewpoint the new components' supply chain in the distribution system For this purpose, to extract and to identify the sub-indicators for each process in this supply chain, the performance of processes is monitored and the performance deviation is determined by the probability functions and the permissible value of each sub-indicator to select the losses management methods
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