Impact of load type on power consumption and line loss in voltage reduction program

Voltage reduction is becoming a common strategy in distribution to reduce peak demand and energy consumption. At reduced voltage, variations in line losses need to be analyzed, because losses affect the cost-benefit analysis. In this paper, a model is derived that explains, at reduced voltage, how line losses vary with types of load. This model has been demonstrated on the IEEE 13-bus test system. Also analyzed is the effect of line resistance on line losses for various types of loads.