Distribution feeder bus load estimations by measurement matching

The effectiveness of the entire distribution management system (DMS) relies on the data accuracy of load modeling/load estimation (LM/LE) in the distribution network. In this paper, feeder bus load estimations results obtained from a load scaling (LC) and backward/forward sweep (BFS) procedure are presented. The proposed technique makes use of the actual measurements (AM) data available from distribution automation (DA) and Advanced Metering Infrastructure (AMI) to adjust priori bus load data considered as pseudo measurements (PM). Two measurement matching procedures used to match the calculated data with the different types of measurement data at different feeder locations are described. Test results demonstrate that the proposed technique could lead to a load flow solution that matches AM and provides final load scaling values for PM.