123 Bus Feeder

Abstract

These systems were originally created in 1992 and approved by the DSA Subcommittee during the 2000 PES Summer Meeting. These systems were designed to evaluate and benchmark algorithms in solving unbalanced three-phase radial systems. Each of these represent reduced-order models of an actual distribution circuit. The IEEE 123 node test feeder operates at a nominal voltage of 4.16 kV. While this is not a popular voltage level it does provide voltage drop problems that must be solved with the application of voltage regulators and shunt capacitors. This circuit is characterized by overhead and underground lines, unbalanced loading with constant current, impedance, and power, four voltage regulators, shunt capacitor banks, and multiple switches.This circuit is "well-behaved" with minimal convergence problems. Corrections: 15 Sept 2010: Node 49, Phase C load changed from 25 kvar to 20 kvar. 16 Sept 2010: Matrices for Config 2 and 4 corrected. 03 Feb 2014: Added line configuration for line 51-151. 04 Jan 2012: Test feeders in RDAP text format. Provided by Bill Kersting.