Control switching device, plant, control switching method and program

Patent metadata

Field	Value
Publication number	US-11226602-B2
Application number	US-201816625110-A
Country	US
Kind code	B2
Filing date	Jun 21, 2018
Priority date	Jun 26, 2017
Publication date	Jan 18, 2022
Grant date	Jan 18, 2022

Abstract

A control switching device including an operation input part configured to receive a switching operation as to whether to use a second control execution part configured to carry out different control over a control object than a first control execution part for controlling the control object, and a control switching part to transition to a second control mode causing the second control execution part to control the control object according to an operation indicating use of the second control execution part to stop control of the first control execution part while having the second control execution part control the control object or to have the first control execution part and the second control execution part control the control object, or to transition to a first control mode causing the first control execution part to control the control object according to an operation indicating disuse of the second control execution part.

First claim

The invention claimed is:

1. A control switching device separated from a control device comprising a first control execution part configured to carry out a control over a control object relating to a predetermined operation parameter of a power plant and configured to switch the control over the control object, comprising:
a communication part configured to communicate with the control device;
a second control execution part configured to carry out a different control over the control object than the control of the first control execution part by changing at least part of the control over the control object according to an application installed therein via the communication part;
an operation input part configured to receive a switching operation as to whether to use or disuse the first control execution part and the second control execution part; and
a control switching part configured to make a transition from a first control mode configured to use the control of the first control execution part to a second control mode configured to use the control of the second control execution part by cooperating with the control of the first control execution part or by stopping the control of the first control execution part when the switching operation indicates the use of the second control execution part, or to make a transition to the first control mode configured to use the control of the first control execution part by stopping the control of the second control execution part when the switching operation indicates the disuse of the second control execution part.

2. The control switching device according to claim 1 , further comprising a display configured to display an effect of improving operation efficiency of the power plant realized by controlling the control object in the second control mode compared to the first control mode.

3. The control switching device according to claim 2 , wherein the display is further configured to display operation result information based on measurement data produced by controlling the control object in the first control mode and operation result information based on measurement data produced by controlling the control object in the second control mode.

4. The control switching device according to claim 2 , further comprising a storage configured to store a history of operation parameters for the control object and first operation history information representing a result of controlling the control object using the operation parameters included in the history of operation parameters in the first control mode; and
a simulation execution part configured to calculate second operation history information by executing a simulation of controlling the control object using the operation parameters included in the history of operation parameters in the second control mode,
wherein the display is further configured to display the first operation history information and the second operation history information.

5. The control switching device according to claim 1 , further comprising a usage information acquisition part configured to acquire usage information representing a degree of controlling the control object with the second control execution part; and
a charging calculation part configured to calculate an amount of payment for the use of the second control execution part based on the usage information.

6. A power plant, comprising:
a control object relating to a predetermined operation parameter of a power plant;
a first control execution part included in a control device, which is configured to carry out a control over the control object in an operation of the plant;
a second control execution part included in a control switching device separated from the control device and comprising a communication part configured to communicate with the control device, wherein the second control execution part is configured to carry out a different control over the control object than the control of the first control execution part by changing at least part of the control over the control object according to an application installed therein via the communication part;
an operation input part configured to receive a switching operation as to whether to use or disuse the first control execution part and the second control execution part; and
a control switching part configured to make a transition from a first control mode configured to use the control of the first control execution part to a second control mode configured to use the control of the second control execution part by cooperating with the control of the first control execution part or by stopping the control of the first control execution part when the switching operation indicates the use of the second control execution part, or to make a transition to the first control mode configured to use the control of the first control execution part by stopping the control of the second control execution part when the switching operation indicates the disuse of the second control execution part.

7. The plant according to claim 6 , further comprising an application generator configured to generate an application program for implementing the control of the second control mode; and
an application installer configured to implement the control of the second control mode by installing the application program.

8. A control switching method configured to switch a control over a control object in association with a control device comprising a first control execution part configured to carry out a control over the control object relating to a predetermined operation parameter of a power plant, comprising:
receiving a switching operation as to whether to use or disuse the first control execution part and a second control execution part which is included in a control switching device separated from the control device and comprising a communication part configured to communicate with the control device, wherein the second control execution part is configured to carry out a different control over the control object than the control of the first control execution part by changing at least part of the control over the control object according to an application installed therein via the communication part; and
making a transition from a first control mode configured to use the control of the first control execution part to a second control mode configured to use the control of the second control execution part by cooperating with the control of the first control execution part or by stopping the control of the first control execution part when the switching operation indicates the use of the second control execution part, or a transition to the first control mode configured to use the control of the first control execution part by stopping the control of the second control execution part when the switching operation indicates the disuse of the second control execution part.

9. A non-transitory computer-readable storage medium having a stored program causing a computer to handle a control object association with a control device comprising a first control execution part configured to carry out a control over the control object relating to a predetermined operation parameter of a power plant, thus implementing:
acquiring switching operation information representing a switching operation as to whether to use or disuse the first control execution part and a second control execution part which is included in a control switching device separated from the control device and comprising a communication part configured to communicate with the control device, wherein the second control execution part is configured to carry out a different control over the control object than the control of the first

Assignees

• Mitsubishi Hitachi Power Sys Ltd
• Mitsubishi Power Ltd

Inventors

• Imakita Koji
• Ishigaki Hiroyasu
• Abe Ikuyo

Classifications

• G05B7/02 Primary

  electric · CPC title

• G05B17/02 Primary

  electric · CPC title

• G05B9/03

  with multiple-channel loop, i.e. redundant control systems · CPC title