Minimizing Power Transmission Losses by Reactive-Volt-Ampere Control

Power transmission load flow studies are generally based on the assignment for each bus of either voltage or reactive volt-amperes. Reduced system loss may be obtained by more critical voltage adjustment. For each variable voltage bus an optimum voltage is found which gives minimum loss in the neighborhood of the bus. An iterative procedure with a damping factor appropriate to the system is used in the final determination. Trial computations show significant savings.