Comparative Study of the IEEE 34 Node Test Feeder under Practical Simplifications

The IEEE 34 node distribution test feeder incorporates all possible practical configurations and load profiles, such as three phase asymmetry, single phase laterals and distributed loads, among others. Simplifying assumptions leading to the balanced three phase main feeder and spot loads are common in the papers published in the literature on distribution system planning and operation. The purpose of this paper is to compare the results obtained using such simplifications with exact results given in the IEEE node test feeder data. Typical simplifying scenarios are assumed and the resulting balanced system analyzed. Comparison of voltage profiles and system losses validates the use of simplified balanced three phase system in the determination of equipment sizing, location and control parameters.