AGI and integrated volt-VAR control

Demand management is designed to reduce electrical demand while minimizing electrical losses. Utilities use an integrated volt-VAR control system to determine the optimal settings for all distribution voltage regulating and control devices. However, typical IVVC systems use on-line power flow estimates with stale data. Since utilities are required to maintain a set voltage to their customers, most integrated volt-VAR systems use overly conservative values to prevent unacceptable low voltage conditions.

By collecting feeder voltage measurements from selected AGI nodes at strategic feeder locations (for example, at feeder extremities), the AGI nodes can report these measurements on a periodic basis. The integrated volt-VAR system can use this information to maintain the required level of service to customers.