Voltage Droop Controls in Power Flow Simulation

Steady state power flow simulation software is widely used across industry and academia for reliable system operation. Voltage regulation implementation in software typically makes use of PQ and PV buses separately resulting in an infinite slope QV curve, while units in industry typically have dead-bands and real sloped responses. In this work, a new technique for modeling power flow generator voltage control is implemented to more accurately model the real-world generator responses. The new technique has been compared with typical power flow control methods using a three-bus case study that portrays the differences in the two response types. The results obtained show that the new technique is more effective at modeling dead-bands and real sloped responses that exist in industry.