# US 12,191,665 B2 · System operator side computer, power generation operator side computer, power system, control method, and program

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- Number: US 12,191,665 B2
- Document ID: US12191665B2
- Status: Granted
- Kind: B2
- Application number: 17/562,554
- Filed: 2021-12-27
- Published: 2022-04-21
- Granted: 2025-01-07
- Earliest claimed: 2017-11-20
- Assignees: Mitsubishi Heavy Industries, Ltd.
- Applicants: Mitsubishi Power, Ltd.
- Inventors: Naoyuki Nagafuchi
- Web page: https://patentgrep.com/patent/US12191665B2

## CPC

- H02J 3/17: Demand-responsive operation of AC power transmission or distribution networks
- H02J 3/00: Circuit arrangements for AC mains or AC distribution networks
- H02J 3/003: {Load forecast, e.g. methods or systems for forecasting future load demand}
- H02J 3/004: {Generation forecast, e.g. methods or systems for forecasting future energy generation}
- H02J 3/38: Arrangements for feeding a single network from two or more generators or sources in parallel; Arrangements for feeding already energised networks from additional generators or sources in parallel
- H02J 13/12: Monitoring network conditions, e.g. electrical magnitudes or operational status
- G06Q 50/06: Energy or water supply
- H02J 2103/30: Simulating, planning, modelling, reliability check or computer assisted design [CAD] of electric power networks
- H02J 2105/55: according to an economic condition, e.g. tariff-based load management
- Y02B 70/3225: Demand response systems, e.g. load shedding, peak shaving
- Y02E 60/00: Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y04S 10/30: State monitoring, e.g. fault, temperature monitoring, insulator monitoring, corona discharge
- Y04S 20/222: Demand response systems, e.g. load shedding, peak shaving
- Y04S 50/10: Energy trading, including energy flowing from end-user application to grid
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- G06Q: INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y04S: SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS

## Abstract

A system operator side computer includes: a supply amount acquirer configured to acquire a maximum suppliable power amount from a power generation operator at a predetermined time later; a demand specifier configured to specify a power demand at the predetermined time later; and a shortage amount calculator configured to calculate a power shortage amount based on the power demand and the maximum suppliable power amount.

## Claims

### Claim 1

An operator side power supply manager device, comprising:
a memory storing computer-readable instructions; and
a processor, coupled to the memory, the processor configured to execute the computer-readable instructions to:
apply a first power amount to a load using a weather dependent power supply device;
apply a second power amount to a load using a weather independent power supply device;
receive weather information over a network;
predict the first amount of power applied to the load by the weather dependent power supply device at a predetermined time based on the received weather information;
determine a total power amount comprising a sum of the predicted first amount of power applied to the load by the weather dependent power supply device at the predetermined time based on the received weather information and a second amount of power applied to the load at the predetermined time by the weather independent power supply device;
determine whether the total power amount applied to the load at the predetermined time is insufficient to meet a power demand of the load at the predetermined time;
when the total power amount is determined to be insufficient at the predetermined time, determine an increase to the second amount of power to apply to the load at the predetermined time by the weather independent power supply device to meet the power demand of the load; and
apply the increase to the load at the predetermined time.

### Claim 2 (depends on 1)

The operator side power supply manager device of claim 1, wherein the processor is further configured to receive the weather information comprising a weather forecast for the predetermined time and past results for an amount of light available to the weather dependent power supply device at the predetermined time, the processor using the weather forecast for the predetermined time and past results for the amount of light available to the weather dependent power supply device at the predetermined time to predict the first amount of power applied to the load by the weather dependent power supply device at the predetermined time.

### Claim 3 (depends on 1)

The operator side power supply manager device of claim 1, wherein the processor is further configured to, based on the weather information, calculate the increase of the second amount of power to meet the power demand of the load at the predetermined time.

### Claim 4 (depends on 1)

The operator side power supply manager device of claim 1, wherein the processor is further configured to receive a maximum suppliable power amount from the weather independent power supply device.

### Claim 5 (depends on 4)

The operator side power supply manager device of claim 4, wherein the processor is further configured to determine whether the increase to the second amount of power applied to the load at the predetermined time by the weather independent power supply device is greater than the maximum suppliable power amount of the weather independent power supply device.

### Claim 6 (depends on 5)

The operator side power supply manager device of claim 5, wherein the processor is further configured to transmit a request to the load to reduce the amount of power consumption at the predetermined time.

### Claim 7

A power system comprising:
an operator side power supply manager device; and
a power generation manager device,
wherein the operator side power supply manager device includes
a first memory storing first computer-readable instructions; and
a first processor, coupled to the first memory, the first processor configured to execute the first computer-readable instructions to:
apply a first power amount to a load using a weather dependent power supply device;
apply a second power amount to a load using a weather independent power supply device;
receive weather information over a network;
predict the first amount of power applied to the load by the weather dependent power supply device at a predetermined time based on the received weather information;
determine a total power amount comprising a sum of the predicted first amount of power applied to the load by the weather dependent power supply device at the predetermined time based on the received weather information and a second amount of power applied to the load at the predetermined time by the weather independent power supply device;
determine whether the total power amount applied to the load at the predetermined time is insufficient to meet a power demand of the load at the predetermined time;
when the total power amount is determined to be insufficient at the predetermined time, determine an increase to the second amount of power to apply to the load at the predetermined time by the weather independent power supply device to meet the power demand of the load; and
apply the increase to the load at the predetermined time; and
wherein the power generation manager device includes
a second memory storing second computer-readable instructions; and
a second processor, coupled to the second memory, the second processor configured to execute the second computer-readable instructions to:
receive a request from the operator side power supply manager device for a maximum suppliable power amount of the weather independent power supply device at the predetermined time;
calculate the maximum suppliable power amount of the weather independent power supply device at the predetermined time; and
transmit the maximum suppliable power amount of the weather independent power supply device to the operator side power supply manager device.

### Claim 8

A control method of an operator side power supply manager device, comprising:
applying a first power amount to a load using a weather dependent power supply device;
applying a second power amount to a load using a weather independent power supply device;
receiving weather information over a network;
predicting the first amount of power applied to the load by the weather dependent power supply device at a predetermined time based on the received weather information;
determining a total power amount comprising a sum of the predicted first amount of power applied to the load by the weather dependent power supply device at the predetermined time based on the received weather information and a second amount of power applied to the load at the predetermined time by the weather independent power supply device;
determining whether the total power amount applied to the load at the predetermined time is insufficient to meet a power demand of the load at the predetermined time;
when the total power amount is determined to be insufficient at the predetermined time, determining an increase to the second amount of power to apply to the load at the predetermined time by the weather independent power supply device to meet the power demand of the load; and
applying the increase to the load at the predetermined time.

### Claim 9

A non-transitory computer-readable media having computer-readable instructions stored thereon, which when executed by a processor causes the processor to perform operator side power supply management operations comprising:
applying a first power amount to a load using a weather dependent power supply device; applying a second power amount to a load using a weather independent power supply device;
receiving weather information over a network;
predicting the first amount of power applied to the load by the weather dependent power supply device at a predetermined time based on the received weather information;
determining a total power amount comprising a sum of the predicted first amount of power applied to the load by the weather dependent power supply device at the predetermined time based on the received weather information and a second amount of power applied to the load at the predetermined time by the weather independent power supply device;
determining whether the total power amount applied to the load at the predetermined time is insufficient to meet a power demand of the load at the predetermined time;
when the total power amount is determined to be insufficient at the predetermined time, determining an increase to the second amount of power to apply to the load at the predetermined time by the weather independent power supply device to meet the power demand of the load; and
applying the increase to the load at the predetermined time.

### Claim 10 (depends on 9)

The non-transitory computer-readable media of claim 9, further comprising:
receiving the weather information comprising a weather forecast for the predetermined time and past results for an amount of light available to the weather dependent power supply device at the predetermined time;
using the weather forecast for the predetermined time and past results for the amount of light available to the weather dependent power supply device at the predetermined time to predict the first amount of power applied to the load by the weather dependent power supply device at the predetermined time; and
based on the prediction of the first amount of power applied to the load by the weather dependent power supply device at the predetermined time, determining the increase of the second amount of power to meet the power demand of the load at the predetermined time.

### Claim 11 (depends on 10)

The non-transitory computer-readable media of claim 10, further comprising
receiving a maximum suppliable power amount from the weather independent power supply device;
determining whether the increase to the second amount of power applied to the load at the predetermined time by the weather independent power supply device is greater than the maximum suppliable power amount of the weather independent power supply device; and
transmitting a request to the load to reduce the amount of power consumption at the predetermined time.