Improving the economic competitiveness of small‐load long‐distance AC transmission systems by the use of static compensators at the receiving end

To supply small loads located very far from low-cost generation areas local Diesel generation or transmission from the generation areas to loads are the alternatives to be considered. The competitiveness of the latter solution can be improved by the use of static devices, able to compensate active and/or reactive powers, installed in suitable locations of the transmission system. In this paper the possibility of installing at the Receiving End either a Static Var Compensator (SVC) or a Static Watt-Var Compensator (SWVC, that is a device able to work in the four quadrants of the P-Q plane) is discussed. A possible operating strategy is proposed for both devices, the loadability limits of various options are determined, and an economical comparison of the schemes without compensators and with SVC or SWVC is also carried out in a practical case of application.