System and method for controlling power system
First Claim
1. A system for controlling a power system configured to control a power state of the power system, comprising:
- a plurality of sensor devices arranged in the power system and configured to output measurement data;
a first control apparatus configured to estimate a first power state of the power system by using the measurement data obtained by the plurality of sensor devices, calculate a first controlled variable according to the estimated first power state, and output the calculated first controlled variable; and
at least a second control apparatus arranged in the power system in a communicable manner with the first control apparatus and configured to execute a predetermined control operation according to either the first controlled variable calculated by the first control apparatus or a second controlled variable calculated in the second control apparatus,wherein the first control apparatus estimates the first power state by using predetermined measurement data among the obtained measurement data when it is unable to obtain part of the measurement data,wherein the first control apparatus is further configured to;
previously create a first power state estimating model for each combination of the predetermined measurement data to estimate the first power state according to the predetermined measurement data,estimate the first power state by using the predetermined measurement data and the first power state estimating model that matches the combination of the predetermined measurement data that has been actually obtained among the plurality of first power state estimating models,create a first controlled variable calculating model to calculate the first controlled variable corresponding to the estimated first power state,calculate the first controlled variable according to the estimated first power state and the first controlled variable calculating model, andtransmit the calculated first controlled variable to the second control apparatus, andtransmit, to the second control apparatus, a second power state estimating model created from the first power state estimating model and a second controlled variable calculating model created from the first controlled variable calculating model,wherein the second control apparatus is further configured to;
store the second power state estimating model and the second controlled variable estimating model received from the first control apparatus,execute a first control mode in a predetermined first case, andin the first control mode, execute the predetermined control operation according to the first controlled variable received from the first control apparatus,execute a second control mode in a predetermined second case,in the second control mode, estimate a second power state of the power system according to the measurement data of a predetermined sensor device among the sensor devices and the second power state estimating model,calculate the second controlled variable according to the estimated second power state and the second controlled variable calculating model, andexecute the predetermined control operation according to the calculated second controlled variable, andwherein the predetermined second case represents a case where it is determined that a communication state between the first control apparatus and the second control apparatus is decreased at or lower than a preset predetermined value.
1 Assignment
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Accused Products
Abstract
To control a power state of a power system properly according to a communication state. A system for controlling a power system includes a plurality of sensor devices configured to output measurement data; a first control apparatus configured to estimate a first power state of the power system by using the measurement data obtained by the plurality of sensor devices, calculate a first controlled variable according to the estimated first power state, and output the calculated first controlled variable; and at least a second control apparatus configured to execute a predetermined control operation according to either the first controlled variable calculated in the first control apparatus, or a second controlled apparatus calculated in the second control apparatus. When it is not able to obtain part of the measurement data, the first control apparatus estimates the first power state by using predetermined measurement data among the obtained measurement data.
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Citations
8 Claims
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1. A system for controlling a power system configured to control a power state of the power system, comprising:
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a plurality of sensor devices arranged in the power system and configured to output measurement data; a first control apparatus configured to estimate a first power state of the power system by using the measurement data obtained by the plurality of sensor devices, calculate a first controlled variable according to the estimated first power state, and output the calculated first controlled variable; and at least a second control apparatus arranged in the power system in a communicable manner with the first control apparatus and configured to execute a predetermined control operation according to either the first controlled variable calculated by the first control apparatus or a second controlled variable calculated in the second control apparatus, wherein the first control apparatus estimates the first power state by using predetermined measurement data among the obtained measurement data when it is unable to obtain part of the measurement data, wherein the first control apparatus is further configured to; previously create a first power state estimating model for each combination of the predetermined measurement data to estimate the first power state according to the predetermined measurement data, estimate the first power state by using the predetermined measurement data and the first power state estimating model that matches the combination of the predetermined measurement data that has been actually obtained among the plurality of first power state estimating models, create a first controlled variable calculating model to calculate the first controlled variable corresponding to the estimated first power state, calculate the first controlled variable according to the estimated first power state and the first controlled variable calculating model, and transmit the calculated first controlled variable to the second control apparatus, and transmit, to the second control apparatus, a second power state estimating model created from the first power state estimating model and a second controlled variable calculating model created from the first controlled variable calculating model, wherein the second control apparatus is further configured to; store the second power state estimating model and the second controlled variable estimating model received from the first control apparatus, execute a first control mode in a predetermined first case, and in the first control mode, execute the predetermined control operation according to the first controlled variable received from the first control apparatus, execute a second control mode in a predetermined second case, in the second control mode, estimate a second power state of the power system according to the measurement data of a predetermined sensor device among the sensor devices and the second power state estimating model, calculate the second controlled variable according to the estimated second power state and the second controlled variable calculating model, and execute the predetermined control operation according to the calculated second controlled variable, and wherein the predetermined second case represents a case where it is determined that a communication state between the first control apparatus and the second control apparatus is decreased at or lower than a preset predetermined value. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for controlling a power state of a power system, wherein
the power system comprises: -
a plurality of sensor devices configured to output measurement data; a first control apparatus; and at least a second control apparatus arranged in the power system in a communicable manner with the first control apparatus, the method comprising; estimating, by the first control apparatus, a first power state of the power system by using the measurement data obtained from the plurality of sensor devices; calculating, by the first control apparatus, a first controlled variable according to the estimated first power state; outputting, by the first control apparatus, the calculated first controlled variable; executing, by the second control apparatus, a predetermined control operation according to either the first controlled variable calculated in the first control apparatus or a second controlled variable calculated in the second control apparatus; estimating, by the first control apparatus, the first power state by using predetermined measurement data among the obtained measurement data, when it is unable to obtain part of the measurement data, previously creating, by the first control apparatus, a first power state estimating model for each combination of the predetermined measurement data to estimate the first power state according to the predetermined measurement data; estimating, by the first control apparatus, the first power state by using the predetermined measurement data and the first power state estimating model that matches the combination of the predetermined measurement data that has been actually obtained among the plurality of first power state estimating models; calculating, by the first control apparatus, the first controlled variable according to the estimated first power state and the first controlled variable calculating model for calculating the first controlled variable according to the estimated first power state; transmitting, by the first control apparatus, the calculated first controlled variable to the second control apparatus; executing, by the second control apparatus, a first control mode when a difference between the latest data receiving time when the data is received from the first control apparatus and the last data receiving time is smaller than a predetermined first time period, wherein in the first control mode, executing the predetermined control operation according to the first controlled variable received from the first control apparatus. - View Dependent Claims (8)
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Specification