This use case describes how a Distributed Energy Resource Controller will be able to adjust the system settings when there is a significant amount of Distributed Energy Resources connected to a circuit.
With the implementation of multiple Distributed Energy Resources on the Electric Power System comes the question of controlling those resources to maintain the utility’s standard of high quality power service to its customers. To ensure this high quality service, Voltage Sensors are placed on the Electric Power System at critical points to monitor the system voltage. In the event of a Voltage Excursion, the Voltage Sensors will send an alarm back to the Distributed Energy Resource Controller. The Distributed Energy Resource Controller will initiate a scan of the Voltage Sensors and relevant Load Meters in the effected area and compute an optimal solution. The Distributed Energy Resource Controller will then send commands to curtail or initiate the charge cycles on selected DER Storage units to include PHEV and/or EV. The Distributed Energy Resource Controller will also send new setpoints for the effected DER Devices and Voltage Regulation Tap Changers. The effected equipment accepts the new system setpoints and allows the Electric Power System to regain normal operation.