Systems and methods for volt-ampere reactive control and optimization
AssigneeDominion Energy, Inc.
InventorsStephen J. Tyler, Melissa A. Peskin
Life of this patent
Estimating the term…
Abstract
A method, apparatus, system and computer program is provided for optimizing and controlling volt-amperes reactive on an electrical control system. System-level and local-level measurements are determined and analyzed to prioritize and optimize which VAR adjusters are adjusted.
Claims58
A control system for an electric power transmission and distribution grid configured to supply electric power to a plurality of user locations, the system comprising:
- a supply point for generating electrical power;
- a plurality of nodes downstream of the supply point, wherein each node includes a substation configured to supply electrical power from the supply point to a plurality of user locations;
- a plurality of sensors, wherein each sensor is located at a respective one of a plurality of distribution locations on the distribution grid at or between the nodes and at least one of the plurality of user locations, and wherein each sensor is configured to sense a component of the supplied electric power at the respective distribution location and to generate measurement data based on the sensed component of the power;
- a controller configured to receive the measurement data from the plurality of sensors, to determine a system power factor at the supply point and a node power factor at each of the plurality of nodes, and to generate an energy delivery parameter based on the system power factor and thus also a system volt-amperes reactive (VAR);
- and
- at least one VAR adjusting device configured to add or subtract VARs to the electric power transmission and distribution grid in response to the energy delivery parameter.
A method of controlling an electric power transmission and distribution grid having supply point and a plurality of nodes downstream of the supply point, each node including a substation configured to supply electric power from the supply point to a plurality of user locations, the method comprising:
- receiving from a plurality of sensors measurement data based on a sensed component of the power, wherein each sensor is located at a respective one of a plurality of distribution locations on the distribution grid at or between the supply point and at least one of the plurality of user locations;
- receiving the measurement data from the plurality of sensors;
- determining a system power factor at the supply point and a node power factor at each of the plurality of nodes;
- generating an energy delivery parameter based on the system power factor to optimize or adjust the system power factor and thus also a system volt-amperes reactive (VAR);
- and
- adjusting at least one VAR adjusting device configured to add or subtract VARs to the electric power transmission and distribution grid in response to the energy delivery parameter.
Dependencies are inferred from the claim text.