Method for calibrating sensors in a power system
First Claim
1. A power system, comprising:
- a plurality of power system sensors, wherein each of the plurality of power system sensors is configured to measure a parameter corresponding to a location in a network topology of the power system, and wherein the parameter is one of voltage and current;
a controller that is configured to be communicatively connected to the plurality of power system sensors by a communication network;
wherein the controller is configured to;
access power system data corresponding to at least a portion of the power system, the power system data comprising at least one of;
the location in the network topology of the plurality of power system sensors;
a sensor type; and
an indication of accuracy of the plurality of power system sensors;
receive a plurality of sensor measurements from the plurality of power system sensors via the communication network, wherein a first one of the plurality of sensor measurements is measured by a first one of the plurality of power system sensors and a second one of the plurality of sensor measurements is measured by a second one of the plurality of power system sensors;
generate a model of the power system, wherein the model of the power system is generated based on the first one of the plurality of sensor measurements, wherein the first one of the plurality of power system sensors is determined to be accurate based on the power system data;
wherein the model generates a plurality of model measurements, wherein a second one of the plurality of model measurements corresponds to the second one of the plurality of sensor measurements; and
determine a correction factor for modifying a measurement that is measured by the second one of the plurality of power system sensors, wherein the correction factor is based on the second one of the plurality of sensor measurements and the second one of the plurality of model measurements.
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Abstract
A system that includes a controller configured to receive data corresponding to at least a portion of a power system and one or more sensor measurements from one or more sensors in the power system. The controller may then generate a model of the power system based on at least a portion of the data and at least a portion of the sensor measurements such that the model may include one or more model measurements that correspond to the sensor measurements. After generating the model of the power system, the controller may determine one or more correction factors for the sensor measurements based on at least a portion of the sensor measurements and the model measurements, apply the correction factors to the sensor measurements to generate corrected sensor measurements, and determine one or more properties of the power system based on the corrected sensor measurements.
4 Citations
15 Claims
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1. A power system, comprising:
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a plurality of power system sensors, wherein each of the plurality of power system sensors is configured to measure a parameter corresponding to a location in a network topology of the power system, and wherein the parameter is one of voltage and current; a controller that is configured to be communicatively connected to the plurality of power system sensors by a communication network; wherein the controller is configured to; access power system data corresponding to at least a portion of the power system, the power system data comprising at least one of; the location in the network topology of the plurality of power system sensors; a sensor type; and an indication of accuracy of the plurality of power system sensors; receive a plurality of sensor measurements from the plurality of power system sensors via the communication network, wherein a first one of the plurality of sensor measurements is measured by a first one of the plurality of power system sensors and a second one of the plurality of sensor measurements is measured by a second one of the plurality of power system sensors; generate a model of the power system, wherein the model of the power system is generated based on the first one of the plurality of sensor measurements, wherein the first one of the plurality of power system sensors is determined to be accurate based on the power system data; wherein the model generates a plurality of model measurements, wherein a second one of the plurality of model measurements corresponds to the second one of the plurality of sensor measurements; and determine a correction factor for modifying a measurement that is measured by the second one of the plurality of power system sensors, wherein the correction factor is based on the second one of the plurality of sensor measurements and the second one of the plurality of model measurements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification