Voltage regulation system and method
AssigneeGeneral Electric Company
InventorsJohal Harjeet, Naresh Acharya, Kathleen Ann O'Brien, Xinhui Wu
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Abstract
A method for regulating a power line voltage includes determining a slow voltage variation by filtering an actual voltage at terminals of the voltage regulation apparatus. A fast active power variation is determined by filtering a measured active power of the DG system; wherein a first frequency of the slow voltage variation is smaller than a second frequency of the fast active power variation. The voltage regulation apparatus settings are controlled based on the slow voltage variation and a reactive power output of the DG system is controlled based on fast active power variation.
Claims21
A method for regulating a power line voltage, comprising:
- determining a slow voltage variation by filtering an actual voltage at terminals of the voltage regulation apparatus;
- determining a fast active power variation by filtering a measured active power of the DG system;
- wherein a first frequency of the slow voltage variation is smaller than a second frequency of the fast active power variation;
- controlling settings of the voltage regulation apparatus based on the slow voltage variation;
- and
- controlling a reactive power output of the DG system based on the fast active power variation.
An integrated volt-volt amp reactive (var) system, comprising:
- a voltage deviation identification module to determine a slow power line voltage variation by filtering an actual voltage at output terminals of the voltage regulation apparatus;
- an active power deviation identification module to determine a fast active power variation by filtering a measured active power of a distributed generation (DG) system;
- wherein a first frequency of the slow voltage variation is smaller than a second frequency of the fast active power variation;
- a voltage regulation apparatus controller to control settings of the voltage regulation apparatus based on the slow power line voltage variation;
- and
- a distributed generation (DG) system controller to control a reactive power output of the DG system based on the fast active power variation.
Dependencies are inferred from the claim text.