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US 2024/0077523 A1Published application
Voltage management device, voltage command device, power system monitoring system, measurement device, voltage management method, and storage medium
AssigneeMitsubishi Electric Corporation
InventorNobuhiko ITAYA
Life of this patent
Estimating the term…
Abstract
A voltage management device according to the present disclosure includes a communication unit that obtains, for each of sections in a power system, a measurement value of a voltage measured by a smart meter connected to that section, where the sections are generated by segmentation between monitoring points, and a voltage estimation unit that estimates, for each of the sections, a voltage drop quantity and a voltage rise quantity in that section using the measurement value.
Claims16
A voltage management device comprising:
- acquisition circuitry to obtain, for each of sections in a power system, a measurement value of a voltage measured by a voltage measurement device connected to a corresponding one of the sections to measure a voltage at an interconnection point of a consumer, and to obtain a voltage measured by a measurement device, the sections being generated by segmentation between monitoring points, the measurement device that measures a voltage on a high-voltage distribution line being installed at each of the monitoring points;
- and
- voltage estimation circuitry to estimate, for each of the sections, a voltage drop quantity and a voltage rise quantity in the corresponding one of the sections using the voltage measured by the measurement device and using the measurement value.
(canceled)
A voltage command device comprising:
- acquisition circuitry to obtain, for each of sections in a power system, a measurement value of a voltage measured by a voltage measurement device connected to a corresponding one of the sections to measure a voltage at an interconnection point of a consumer, the sections being generated by segmentation between monitoring points, to obtain a measurement result from a measurement device that measures a voltage at one of the monitoring points, and to obtain a voltage measured by the measurement device, the measurement device that measures a voltage on a high-voltage distribution line being installed at each of the monitoring points;
- voltage estimation circuitry to estimate, for each of the sections, a voltage drop quantity and a voltage rise quantity in the corresponding one of the sections using the voltage measured by the measurement device and using the measurement value;
- proper voltage range update circuitry to set, for each of the sections, a value obtained by subtracting the voltage rise quantity from an upper limit value of a predetermined tolerance range as an upper limit value of a proper voltage range, and to set, for each of the sections, a value obtained by adding the voltage drop quantity to a lower limit value of the proper voltage range as a lower limit value of the proper voltage range;
- and
- amount-of-control determination circuitry to determine an amount of control to be applied by a voltage controller that controls a voltage of the power system, using the voltage measured by the measurement device and using the proper voltage range of each of the sections, and to issue a command about the amount of control determined to a voltage control device that controls the voltage controller.
2 more elements
A power system monitoring system comprising:
- a plurality of voltage measurement devices to measure a voltage at an interconnection point of a consumer;
- and
- a voltage management device to obtain a measurement value of a voltage measured by the plurality of voltage measurement devices, and to estimate, for each of sections, a voltage drop quantity and a voltage rise quantity in a corresponding one of the sections using a voltage measured by a measurement device and using the measurement value, the sections being generated by segmentation between monitoring points, the measurement device that measures a voltage on a high-voltage distribution line being installed at each of the monitoring points.
A power system monitoring system comprising:
- a plurality of voltage measurement devices connected to a distribution line of a low-voltage system;
- a plurality of measurement devices connected to a distribution line of a high-voltage system;
- and
- a voltage management device to obtain a measurement value of a voltage measured by the plurality of voltage measurement devices, and to estimate, for each of sections, a voltage drop quantity and a voltage rise quantity in a corresponding one of the sections using the voltage measured by the measurement device and using the measurement value, the sections being generated by segmentation between corresponding ones of the measurement devices in a power system.
1 more element
A voltage management method for use in a voltage management device, the voltage management method comprising:
- obtaining, for each of sections in a power system, a measurement value of a voltage measured by a voltage measurement device connected to a corresponding one of the sections to measure a voltage at an interconnection point of a consumer, and obtaining a voltage measured by a measurement device, the sections being generated by segmentation between monitoring points, the measurement device that measures a voltage on a high-voltage distribution line being installed at each of the monitoring points;
- and
- estimating, for each of the sections, a voltage drop quantity and a voltage rise quantity in the corresponding one of the sections using the voltage measured by the measurement device and using the measurement value.
A non-transitory storage medium storing a voltage management program for causing a computer system to perform:
- obtaining, for each of sections in a power system, a measurement value of a voltage measured by a voltage measurement device connected to a corresponding one of the sections to measure a voltage at an interconnection point of a consumer, and obtaining a voltage measured by a measurement device, the sections being generated by segmentation between monitoring points, the measurement device that measures a voltage on a high-voltage distribution line being installed at each of the monitoring points;
- and
- estimating, for each of the sections, a voltage drop quantity and a voltage rise quantity in the corresponding one of the sections using the voltage measured by the measurement device and using the measurement value.
Dependencies are inferred from the claim text.