Increase of power transmission capacity in multi-machine power systems with introduction of superconducting generator

This paper describes how the power system ability can be improved by introducing a superconducting generator (SCG) into power system networks. This is of particular interest in the case of power system network with IPP (independent power producer). In this work, a digital type SCG model for an existing analog real-time power system simulator was developed, and experimental studies by use of the above-mentioned equipments have been conducted to investigate the effects of SCG on available generator power output and power transmission capacity. The influence of generator constants on SCG´s behavior is studied in a signal machine infinite bus power system model. A comparison of available generator power output and ATC (available transmission capacity) is made between SCGs and conventional generator (CG) in a five-machine infinite bus power system model. The experimental results have shown the advantages of SCG over CG in terms of power system stabilities.