HYDROELECTRIC POWER GENERATION PLAN ADJUSTING DEVICE, HYDROELECTRIC POWER GENERATION PLAN ADJUSTING METHOD AND PROGRAM

• US 20140324237A1
• Filed: 12/06/2011
• Published: 10/30/2014
• Est. Priority Date: 12/06/2011
• Status: Abandoned Application

• Current Assignee: Chugoku Electric Power Company Incorporated
• Original Assignee: Chugoku Electric Power Company Incorporated
• Inventors: Oe, Ryuji
• Application Number:
  US14/363,729
• Publication Number:
  US 20140324237A1
• Time in Patent Office: Days
• US Class Current: 700/287
• CPC Class Codes: G05B 15/02 electric
• CPC Class Codes: G06Q 10/06 Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
• CPC Class Codes: G06Q 40/00 Finance; Insurance; Tax strategies; Processing of corporate or income taxes
• CPC Class Codes: G06Q 50/06 Energy or water supply
• CPC Class Codes: Y02E 40/70 Smart grids as climate change mitigation technology in the energy generation sector
• CPC Class Codes: Y04S 10/50 Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications

Abstract

The economical load distribution adjusting device 10 acquires an optimal hydroelectric output, optimal demand, and unit power generation cost from the supply-demand planning device 23, acquires the planned hydroelectric output planned by the water level planning devices 21 by providing a price signal created by converting the unit power generation cost, and acquires a planned demand planned by the charge control devices 22 by similarly providing a price signal. The economical load distribution adjusting device 10 adjusts the power price of the time at which the planned hydroelectric output does not agree with the optimal output and makes the water level planning devices 21 replan the hydroelectric output by providing a price signal obtained by converting the adjusted power price, and adjusts the power price of the time at which the planned demand does not agree with the optimal demand and makes the charge control devices 22 replan the amount of demand by providing a price signal obtained by converting the adjusted power price.

Claims

1. A device for adjusting a plan of hydroelectric power generation, communicatively connected to a supply-demand planning device and each of a plurality of hydroelectric power generation planning devices, the supply-demand planning device calculating an optimal value of an output per a unit time by the hydroelectric power generation as well as calculating an optimal value of a power price per the unit time, and the each of the plurality of the hydroelectric power generation planning devices planning the output by the hydroelectric power generation in accordance with the power price, the hydroelectric power generation plan adjusting device comprising:

an optimal supply-demand plan acquiring unit configured to acquire from the supply-demand planning device the optimal value of the output per the unit time and the optimal value of the power price;

a price signal creation unit configured to create a price signal that is a value obtained by converting the optimal value of the power price using a predetermined algorithm;

a power generation planning device control unit that controls the hydroelectric power generation planning devices to plan the output in accordance with the price signal and acquires planned values of the output from the hydroelectric power generation planning devices; and

a price adjusting unit configured to increase or reduce the power price for the unit period in which a difference between a total value of the planned values of the output and the optimal value of the output is equal to or greater than a predetermined output difference threshold value,

wherein the price signal creation unit creates the price signal by converting the increased or reduced power price, and

the power generation planning device control unit re-controls the hydroelectric power generation planning devices to plan the output in accordance with the created price signal.

2. The hydroelectric power generation plan adjusting device according to claim 1, wherein

the price adjusting unit reduces the power price when the total value of the planned values of the output is equal to or greater than the optimal value of the output by the output difference threshold value, and increases the power price when the total value of the planned values of the output is equal to or less than the optimal value of the output by the output difference threshold value.

3. The hydroelectric power generation plan adjusting device according to claim 1, wherein

the price adjusting unit sets a predetermined minimum value to the power price when the total value of the planned values of the output is equal to or greater than the optimal value of the output by the output difference threshold value.

4. The hydroelectric power generation plan adjusting device according to claim 1, wherein

the price adjusting unit sets a predetermined maximum value to the power price when the total value of the planned values of the output is equal to or less than the optimal value of the output by the output difference threshold value.

5. The hydroelectric power generation plan adjusting device according to claim 1, wherein

the hydroelectric power generation plan adjusting device is communicatively connected to each of a plurality of demand planning devices that plan an amount of demand of electric power by electrical equipment in accordance with the power price,

the supply-demand planning device calculates the optimal value of the output by the hydroelectric power generation and an optimal value of the amount of demand of electric power by the electric equipment, and calculates the power price in accordance with the optimal value of the output and the optimal value of the amount of demand,

the hydroelectric power generation plan adjusting device further includes a demand planning device control unit that controls the demand planning devices to plan the amount of demand in accordance with the price signal and acquires a planned value of the amount of demand from the demand planning devices,

the price adjusting unit increases or reduces the power price for the unit time in which the difference between a total value of the planned values of the amount of demand and the optimal value of the amount of demand is equal to or greater than a predetermined amount of a demand difference threshold value,

the price signal creation unit creates the price signal created by converting the increased or reduced power price, and

the demand planning device control unit re-controls at least one of the demand planning devices to plan the amount of demand in accordance with the created price signal.

6. The hydroelectric power generation plan adjusting device according to claim 5, wherein

the price adjusting unit increases the power price when the total value of the planned values of the amount of demand is equal to or greater than the optimal value of the amount of demand by the amount of demand threshold value, and reduces the power price when the total value of the planned values of the amount of demand is equal to or less than the optimal value of the amount of demand by the amount of demand threshold value.

7. The hydroelectric power generation plan adjusting device according to claim 5, wherein

the price adjusting unit sets a predetermined maximum value to the power price when the total value of the planned values of the amount of demand is equal to or greater than the optimal value of the amount of demand by the amount of demand threshold value.

8. The hydroelectric power generation plan adjusting device according to claim 5, wherein

the price adjusting unit sets a predetermined minimum value to the power price when the total value of the planned values of the amount of demand is equal to or less than the optimal value of the amount of demand by the amount of demand threshold value.

9. The hydroelectric power generation plan adjusting device according to claim 1, wherein

the price signal creation unit determines as a reference value one of the power price per the unit time, and creates as the price signal a ratio of the power price per the unit time to the reference value.

10. The hydroelectric power generation plan adjusting device according to claim 1, wherein

the price signal creation unit calculates a mean value of the power price per the unit time, and creates as the price signal a ratio of the power price per the unit time to the mean value.

11. The hydroelectric power generation plan adjusting device according to claim 1, further including a coefficient storage unit configured to store a coefficient for each customer that uses the hydroelectric power generation planning device, wherein

the price signal creation unit specifies the customer of the hydroelectric power generation planning device that provides the power price, reads the coefficient corresponding to the specified customer from the coefficient storage unit, and calculates the price signal by multiplying the power price per the unit time by the read coefficient.

12. The hydroelectric power generation plan adjusting device according to claim 1, wherein the price signal creation unit determines as the price signal a rank in accordance with the power price.

13. A device for adjusting a plan of hydroelectric power generation, communicatively connected to a supply-demand planning device and each of a plurality of hydroelectric power generation planning devices, the supply-demand planning device calculating an optimal value of an output per a unit time by the hydroelectric power generation as well as calculating an optimal value of a power price per the unit time, and the each of the plurality of the hydroelectric power generation planning devices planning the output by the hydroelectric power generation in accordance with the power price, the hydroelectric power generation plan adjusting device comprising:

an optimal supply-demand plan acquiring unit configured to acquire from the supply-demand planning device the optimal value of the output per the unit time and the optimal value of the power price;

a power generation planning device control unit configured to control the hydroelectric power generation planning devices to plan the output in accordance with the power price and acquire planned values of the output from the hydroelectric power generation planning devices; and

a price adjusting unit configured to increase the power price for the unit period in which a total value of the planned values of the output falls below the optimal value of the output,

wherein the power generation planning device control unit re-controls at least one of the hydroelectric power generation planning devices to plan the output in accordance with the increased power price.

14. The hydroelectric power generation plan adjusting device according to claim 13, wherein

the hydroelectric power generation plan adjusting device is communicatively connected to each of a plurality of demand planning devices that plan an amount of demand of electric power by electrical equipment in accordance with the power price,

the supply-demand planning device calculates the optimal value of the output by the hydroelectric power generation and an optimal value of the amount of demand of electric power by the electric equipment, and calculates the power price in accordance with the optimal value of the output and the optimal value of the amount of demand, and

the hydroelectric power generation plan adjusting device further includes a demand planning device control unit that controls the demand planning devices to plan the amount of demand in accordance with the acquired optimal value of the power price and acquires planned values of the amount of demand from the demand planning devices,

the price adjusting unit further reduces the power price for the unit time in which a total value of the planned values of the amount of demand falls below the optimal value of the amount of demand, and

the demand planning device control unit controls at least one of the demand planning devices to plan the amount of demand in accordance with the reduced power price.

15. A method for adjusting a plan of hydroelectric power generation, comprising

a computer communicatively connected to a supply-demand planning device and each of a plurality of hydroelectric power generation planning devices, the supply-demand planning device calculating an optimal value of an output per a unit time by the hydroelectric power generation as well as calculating an optimal value of a power price per the unit time, and the each of the plurality of hydroelectric power generation planning devices planning the output by the hydroelectric power generation in accordance with the power price, performing the steps of:

acquiring from the supply-demand planning device the optimal value of the output per the unit time and the optimal value of the power price;

creating a price signal that is a value obtained by converting the optimal value of the power price using a predetermined algorithm;

controlling the hydroelectric power generation planning devices to plan the output in accordance with the price signal and acquiring a planned value of the output from the hydroelectric power generation planning devices;

increasing or reducing the power price for the unit period in which a difference between a total value of the planned values of the output and the optimal value of the output is equal to or greater than a predetermined output difference threshold value;

creating the price signal by converting the increased or reduced power price; and

re-controlling at least one of the hydroelectric power generation planning devices to plan the output in accordance with the created price signal.

16. The hydroelectric power generation plan adjusting method according to claim 15, wherein

the computer is communicatively connected to each of a plurality of demand planning devices that plan an amount of demand of electric power by electrical equipment in accordance with the power price, and

the supply-demand planning device calculates the optimal value of the output by the hydroelectric power generation and an optimal value of the amount of demand for power by the electric equipment, and calculates the power price in accordance with the optimal value of the output and the optimal value of the amount of demand,

the method further including

the computer

controlling the demand planning devices to plan the amount of demand in accordance with the price signal and acquiring planned values of the amount of demand from the demand planning devices,

increasing or reducing the power price for the unit time in which the difference between a total value of the planned values of the amount of demand and the optimal value of the amount of demand is equal to or greater than a predetermined amount of demand difference threshold value,

creating the price signal created by converting the increased or reduced power price, and

re-controlling at least one of the demand planning devices to plan the amount of demand in accordance with the created price signal.

17. A method of adjusting a hydroelectric power generation plan having a computer, communicatively connected to a supply-demand planning device and each of a plurality of hydroelectric power generation planning devices, the supply-demand planning device calculating an optimal value per a unit time of an output by the hydroelectric power generation as well as calculating an optimal value of a power price per the unit time, and the each of the plurality of hydroelectric power generation planning devices planning the output by the hydroelectric power generation in accordance with the power price, execute the steps of:

acquiring from the supply-demand planning device the optimal value of the output per the unit time and the optimal value of the power price;

controlling the hydroelectric power generation planning devices to plan the output in accordance with the power price and acquiring planned values of the output from the hydroelectric power generation planning devices;

increasing the power price for the unit period in which a total value of the planned values of the output falls below the optimal value of the output; and

re-controlling at least one of the hydroelectric power generation planning devices to plan the output in accordance with the increased power price.

18. The hydroelectric power generation plan adjusting method according to claim 17, wherein

the computer is communicatively connected to each of a plurality of demand planning devices that plan an amount of demand of electric power by electrical equipment in accordance with the power price, and

the supply-demand planning device calculates the optimal value of the output by the hydroelectric power generation and an optimal value of the amount of demand for power by the electric equipment, and calculates the power price in accordance with the optimal value of the output and the optimal value of the amount of demand,

the computer further

controls the demand planning devices to plan the amount of demand in accordance with the acquired optimal value of the power price, and acquires the planned values of the amount of demand from the demand planning devices,

reduces the power price for the unit time in which a total value of the planned values of the amount of demand falls below the optimal value of the amount of demand, and

controls at least one of the demand planning devices to plan the amount of demand in accordance with the reduced power price.

19. A program for adjusting a plan of hydroelectric power generation having a computer, communicatively connected to a supply-demand planning device and each of a plurality of hydroelectric power generation planning devices, the supply-demand planning device calculating an optimal value of an output by the hydroelectric power generation per a unit time as well as calculating an optimal value of a power price per the unit time, and the each of the plurality of hydroelectric power generation planning devices planning the output by the hydroelectric power generation in accordance with the power price, execute the steps of:

acquiring from the supply-demand planning device the optimal value of the output per the unit time and the optimal value of the power price;

creating a price signal that is a value obtained by converting the optimal value of the power price using a predetermined algorithm;

controlling the hydroelectric power generation planning devices to plan the output in accordance with the price signal and acquiring a planned value of the output from the hydroelectric power generation planning devices;

increasing or reducing the power price for the unit period in which a difference between a total value of the planned values of the output and the optimal value of the output is equal to or greater than a predetermined output difference threshold value;

creating the price signal by converting the increased or reduced power price; and

re-controlling at least one of the hydroelectric power generation planning devices to plan the output in accordance with the created price signal.

20. The program for adjusting a plan of hydroelectric power generation according to claim 19, wherein

the computer is communicatively connected to each of a plurality of demand planning devices that plan an amount of demand of electric power by electrical equipment in accordance with the power price, and

the supply-demand planning device calculates the optimal value of the output by the hydroelectric power generation and an optimal value of the amount of demand for power by the electric equipment, and calculates the power price in accordance with the optimal value of the output and the optimal value of the amount of demand,

the method further including

having the computer

control the demand planning devices to plan the amount of demand in accordance with the price signal and acquire planned values of the amount of demand from the demand planning devices,

increase or reduce the power price for the unit time in which the difference between a total value of the planned values of the amount of demand and the optimal value of the amount of demand is equal to or greater than a predetermined amount of demand difference threshold value,

create the price signal created by converting the increased or reduced power price, and

re-control at least one of the demand planning devices to plan the amount of demand in accordance with the created price signal.

21. A program for adjusting a plan of hydroelectric power generation having a computer, communicatively connected to a supply-demand planning device and each of a plurality of hydroelectric power generation planning devices, the supply-demand planning device calculating an optimal value of an output by the hydroelectric power generation per a unit time as well as calculating an optimal value of a power price per the unit time, and the each of the plurality of hydroelectric power generation planning devices planning the output by the hydroelectric power generation in accordance with the power price, execute the steps of:

acquiring from the supply-demand planning device the optimal value of the output per the unit time and the optimal value of the power price;

controlling the hydroelectric power generation planning devices to plan the output in accordance with the power price and acquiring planned values of the output from the hydroelectric power generation planning devices;

increasing the power price for the unit period in which a total value of the planned values of the output falls below the optimal value of the output; and

re-controlling at least one of the hydroelectric power generation planning devices to plan the output in accordance with the increased power price.

22. The program for adjusting a plan of hydroelectric power generation according to claim 21, wherein

the computer is communicatively connected to each of a plurality of demand planning devices that plan an amount of demand of electric power by electrical equipment in accordance with the power price, and

the supply-demand planning device calculates the optimal value of the output by the hydroelectric power generation and an optimal value of the amount of demand for power by the electric equipment, and calculates the power price in accordance with the optimal value of the output and the optimal value of the amount of demand,

the computer further

controls the demand planning devices to plan the amount of demand in accordance with the acquired optimal value of the power price, and acquires the planned values of the amount of demand from the demand planning devices,

reduces the power price for the unit time in which a total value of the planned values of the amount of demand falls below the optimal value of the amount of demand, and

controls at least one of the demand planning devices to plan the amount of demand in accordance with the reduced power price.