Method of evaluating change in energy consumption due to volt var optimization
AssigneesBattelle Memorial Institute, American Electric Power Company, Inc.
InventorsTess L. Williams, Kevin P. Schneider, Michael T. Campbell, Derek S. Lewellen
Life of this patent
Estimating the term…
Abstract
A method of evaluating an optimization system is disclosed. The system is transitioned from an on state to an off state. Data is collected at time intervals for a time period before and after the system is transitioned from the on state to the off state. The transitioning occurs while a load of a particular type is active. In one embodiment, the optimization system is a Volt/VAR Optimization (VVO) system.
Claims21
1-16. (canceled)
A method of evaluating a reduction in energy for a period due to a VOLT/VAR optimization (VVO) system that is disposed in an electrical grid, the VVO system using a coordination of tap changers and voltage regulators at a feeder level to reduce energy consumption, the method comprising:
- causing a transition of the VVO system from an on state to an off state at least twice in a period;
- for each of the transitions, performing operations comprising:
- receiving electrical grid characterization data corresponding to time periods before and after a respective transition of the VVO system;
- determining a change in active power demand for the respective transition based on the electrical grid characterization data;
- and
- calculating a reduction in energy consumption for the respective transition based on the change in active power demand for the respective transition;
- calculating the reduction in energy for the period based on the reduction in energy consumption for each of the transitions;
- and
- determining a performance of the VVO system in reducing energy consumption based on the reduction in energy for the period.
A method of evaluating a reduction in energy for a period due to a Volt/VAR optimization (VVO) system that is disposed in an electrical grid, the VVO system using a coordination of tap changers and voltage regulators at a feeder level to reduce energy consumption and a coordination of capacitors to flatten voltage and correct a power factor, the method comprising:
- causing a transition of the VVO system from an on state to an off state at least twice in a cycle, the transitions based on a particular type of electrical load being active;
- for each of the transitions, perform operations comprising:
- receiving electrical grid characterization data corresponding to time periods before and after a respective transition of the VVO system;
- determining a change in active power demand for the respective transition based on the electrical grid characterization data;
- and
- calculating a reduction in energy consumption for the respective transition based on the change in active power demand for the respective transition;
- calculating the reduction in energy for the cycle based on the reduction in energy consumption for each of the transitions;
- and
- determining a performance of the VVO system in reducing energy consumption based on the reduction in energy for the cycle.
Dependencies are inferred from the claim text.