What is the role of synchrophasors in wide-area monitoring and control of distribution systems?

Synchrophasors are time-synchronized measurements of voltage and current phasors obtained from geographically dispersed locations in a power system. They are synchronized using GPS or other precise time sources, allowing for a synchronized snapshot of the system's state. In wide-area monitoring and control of distribution systems, synchrophasors provide several key benefits. Enhanced situational awareness is improved by providing a real-time, system-wide view of voltage, current, and frequency conditions. This allows operators to quickly identify and respond to disturbances, such as voltage sags or oscillations. Improved stability monitoring is possible. Synchrophasors can be used to detect and track system oscillations, which can lead to instability and blackouts. Enhanced control actions are also possible. The real-time data provided by synchrophasors can be used to implement advanced control strategies, such as wide-area voltage control and dynamic line rating. Model validation is also facilitated. Synchrophasor data can be used to validate and improve the accuracy of power system models, which are used for planning and operation. Improved fault location can also be accomplished. Synchrophasors can be used to quickly locate faults by analyzing the changes in voltage and current phasors. The increased penetration of distributed generation (DG) makes distribution systems more complex and dynamic. Synchrophasors provide the visibility needed to manage these systems effectively and ensure reliable operation.