Power plant analysis device, power plant analysis method, and program

Patent metadata

Field	Value
Publication number	US-10890902-B2
Application number	US-201615763300-A
Country	US
Kind code	B2
Filing date	Sep 28, 2016
Priority date	Sep 29, 2015
Publication date	Jan 12, 2021
Grant date	Jan 12, 2021

Abstract

An operation data acquisition unit is configured to acquire, from an operation data storage unit for storing operation data collected every first period from a power plant, the operation data collected during a latest second period that is longer than the first period. A unit profit amount calculation unit is configured to calculate an average amount of profit per unit time in relation to a unit amount of performance improvement of the power plant based on the operation data that has been acquired.

First claim

The invention claimed is:

1. A power plant analysis device comprising:
an operation data acquisition unit configured to acquire, from an operation data storage unit configured to store operation data collected every first period from a power plant owned by a customer, the operation data collected during a latest second period that is longer than the first period;
a utilization rate calculation unit configured to calculate a utilization rate of the power plant based on the operation data that has been acquired; and
a unit profit amount calculation unit configured to calculate an average amount of profit per unit time in relation to a unit amount of performance improvement of the power plant based on the utilization rate of the power plant.

2. The power plant analysis device according to claim 1 ,
wherein:
the unit amount of performance improvement of the power plant is a unit amount of output improvement of the power plant; and
the utilization rate calculation unit is configured to calculate a proportion of a period of duration of operation at not less than a predetermined load in the latest second period as the utilization rate of the power plant based on the operation data that has been acquired.

3. The power plant analysis device according to claim 1 ,
wherein:
the unit amount of performance improvement of the power plant is a unit amount of efficiency improvement of the power plant; and
the utilization rate calculation unit is configured to calculate an average value of load percentages of operation in the latest second period as the utilization rate of the power plant based on the operation data that has been acquired.

4. The power plant analysis device according to claim 1 , further comprising:
an upgrade information storage unit configured to store each of upgrade menus of the power plant associated with a price of the upgrade menu and an amount of performance improvement of the power plant due to application of the upgrade menu; and
an output unit configured to output information based on the average amount of profit per unit time calculated by the unit profit amount calculation unit and the price of the upgrade menu.

5. The power plant analysis device according to claim 4 ,
wherein:
the upgrade information storage unit is configured to store amortization information about an amortization period of the upgrade menu associated with the upgrade menu; and
the output unit is configured to output information based on the average amount of profit per unit time calculated by the unit profit amount calculation unit, the price of the upgrade menu, and the amortization information.

6. The power plant analysis device according to claim 4 ,
wherein the upgrade menu comprises one upgrade part or a combination of upgrade parts.

7. The power plant analysis device according to claim 4 ,
wherein the output unit is configured to output information based on the average amount of profit per unit time calculated by the unit profit amount calculation unit, the price of the upgrade menu, and a conversion period needed for conversion of the power plant by the upgrade menu.

8. The power plant analysis device according to claim 4 , further comprising a profit amount calculation unit configured to calculate an average amount of profit per unit time increased by performance improvement due to application of the upgrade menu based on the average amount of profit per unit time calculated by the unit profit amount calculation unit,
wherein the output unit is configured to output information based on the average amount of profit per unit time calculated by the profit amount calculation unit and the price of the upgrade menu.

9. The power plant analysis device according to claim 1 , further comprising a price acquisition unit configured to acquire at least one of a latest power sales price and a latest fuel price,
wherein the unit profit amount calculation unit is configured to calculate the average amount of profit per unit time based on the utilization rate of the power plant.

10. The power plant analysis device according to claim 1 ,
wherein the power plant comprises at least one of a gas turbine, a steam turbine, and an exhaust heat recovery boiler.

11. A method for analyzing a power plant, the method comprising:
acquiring, among operation data collected every first period from a power plant owned by a customer, the operation data collected during a latest second period that is longer than the first period;
calculating a utilization rate of the power plant based on the operation data that has been acquired; and
calculating an average amount of profit per unit time in relation to a unit amount of performance improvement of the power plant based on the utilization rate of the power plant.

12. A non-transitory computer-readable storage medium storing a program causing a computer to function as:
an operation data acquisition unit configured to acquire, from an operation data storage unit configured to store operation data collected every first period from a power plant owned by a customer, the operation data collected during a latest second period that is longer than the first period;
a utilization rate calculation unit configured to calculate a utilization rate of the power plant based on the operation data that has been acquired; and
a unit profit amount calculation unit configured to calculate an average amount of profit per unit time in relation to a unit amount of performance improvement of the power plant based on the utilization rate of the power plant.

Assignees

• Mitsubishi Hitachi Power Sys
• Mitsubishi Power Ltd

Inventors

• Fujii Keita
• Nishigaki Yoshimichi
• Sakagami Naoki

Classifications

• H02J2103/30

  Simulating, planning, modelling, reliability check or computer assisted design [CAD] of electric power networks · CPC title

• G05B23/02 Primary

  Electric testing or monitoring · CPC title

• H02J3/0075

  for providing alternative feeding paths between load and source according to economic or energy efficiency considerations, e.g. economic dispatch · CPC title

• H02J3/004 Primary

  Generation forecast, e.g. methods or systems for forecasting future energy generation · CPC title

• Y04S40/20

  Information technology specific aspects, e.g. CAD, simulation, modelling, system security · CPC title