Improving power line utilization and performance with D-FACTS devices

This paper discusses the use of massively-dispersed mass-manufactured communications-enabled sensor, power-converter and actuator networks to realize a smart, fault tolerant, controllable and asset efficient power grid. A critical unfulfilled need, power flow control on existing lines, is solved using many modules of a distributed static series compensator (DSSC) device that can be clamped on to existing power lines, and can be operated so as to control the impedance of the conductor - realizing the first in a family of distributed flexible AC transmission system or D-FACTS devices. This approach promises important system-wide benefits including - increased line and system capacity; increased reliability; improved asset utilization; improved operation under contingencies; reduced environmental impact; incremental deployment; and rapid implementation.