Integrated operation instructing system for operating power generation plants

• US 20020107614A1
• Filed: 06/19/2001
• Published: 08/08/2002
• Est. Priority Date: 06/21/2000
• Status: Active Grant

• Current Assignee: Mitsubishi Heavy Industries, Ltd.
• Original Assignee: Mitsubishi Heavy Industries, Ltd.
• Inventors: Tanaka, Satoshi
• Granted Patent: US 6,766,224 B2
• Time in Patent Office: Days
• US Class Current: 700/286
• CPC Class Codes: F01K 23/101 Regulating means specially adapted therefor F01K23/105, F01K23/108 take precedence
• CPC Class Codes: F02C 9/28 Regulating systems responsive to plant or ambient parameters, e.g. temperature, pressure, rotor speed F02C9/30 - F02C9/38, F02C9/44 take precedence
• CPC Class Codes: F02C 9/42 specially adapted for the control of two or more plants simultaneously
• CPC Class Codes: F05D 2270/13 to control two or more engines simultaneously

Abstract

An integrated operation instructing system for operating gas turbine power generation plants in a highly efficient and economical manner is provided. A gas turbine power generation plant 11n is controlled by a controller 11n1 while operating status data of the gas turbine power generation plant 11n are collected by a data logger computer 11n3, and transmitted to a central load dispatching instruction station 10 via the Internet 22. A computer 102 evaluates the deteriorating rate of the gas turbine based on the operating status data, and calculates an optimal target load taking the deteriorating rate into account. The optimal target load is transmitted via an exclusived telecommunication line 12n to the controller 11n1, and the output of the gas turbine power generation plant 11n is controlled based on this optimal target load.

Claims

1. An integrated operation instructing system for operating power generation plants which remotely instructs, from a central load dispatching instruction station, each of a plurality of gas turbine power generation plants, respective target load, said system comprising:

an instruction station data processor installed at said central load dispatching instruction station;

power generation plant data processors installed respectively at said each of plurality of gas turbine power generation plants; and

communication lines for connecting said instruction station data processor with said power generation plant data processors.

2. An integrated operation instructing system for operating power generation plants according to claim 1, wherein said instruction station data processor comprises:

deteriorating rate evaluating means for evaluating the deteriorating rate of gas turbines based on the operating status data of the gas turbine power generation plants;

optimal target load calculating means for calculating optimal target load so as to minimize total operating cost taking the deteriorating rate evaluated by said deteriorating rate evaluating means into account; and

optimal target load transmitting means for transmitting the optimal target load calculated by said optimal target load calculating means to said power generation plant data processors.

3. An integrated operation instructing system for operating power generation plants according to claim 2, wherein said deteriorating rate evaluating means evaluates the deteriorating rate of gas turbines based on gas turbine power generator output, inlet guide vane opening, combustor cylinder pressure, atmospheric temperature and kind of fuel.

4. An integrated operation instructing system for operating power generation plants according to claim 1, wherein said power generation plant data processors comprises power generation plant control means for controlling the output of gas turbine power generators at the target load instructed by said central load dispatching instruction station;

and operating status data transmitting means for transmitting the operating status data of the gas turbine power generation plants to said instruction station data processor.

5. An integrated operation instructing system for operating power generation plants according to claim 4, wherein said operating status data transmitting means transmits gas turbine power generator output, inlet guide vane opening, combustor cylinder pressure, atmospheric temperature and kind of fuel as operating status data.

6. An integrated operation instructing system for operating power generation plants according to claim 2, wherein said communication lines comprise Internet connections for transmitting operating status data from said power generation plant data processors to said instruction station data processor, and exclusived telecommunication lines for transmitting the optimal target power generation outputs from said instruction station data processor to said power generation plant data processors.

7. An instruction station data processor, comprising:

deteriorating rate evaluating means for evaluating deteriorating rate of gas turbines based on the operating status data of the gas turbine power generation plants;

optimal target load calculating means for calculating optimal target loads so as to minimize total operating cost taking the deteriorating rate evaluated by said deteriorating rate evaluating means into account; and

optimal target load transmitting means for transmitting the optimal target load calculated by said optimal target load calculating means to said power generation plant data processors.

8. An instruction station data processor according to claim 7, wherein said deteriorating rate evaluating means evaluates the deteriorating rate of gas turbines based on gas turbine power generator output, inlet guide vane opening, combustor cylinder pressure, atmospheric temperature and kind of fuel.

9. A power generation plant data processor, comprising:

power generation plant control means for controlling the output of gas turbine power generators at the target load instructed by said central load dispatching instruction station; and

operating status data transmitting means for transmitting the operating status data of the gas turbine power generation plant to said instruction station data processor.

10. A power generation plant data processor according to claim 9, wherein said operating status data transmitting means transmit gas turbine power generator output, inlet guide vane opening, combustor cylinder pressure, atmospheric temperature and kind of fuel as operational status data.

11. A communication method which uses the Internet for transmitting operating status data from said power generation plant data processors to said instruction station data processor.

12. A communication method which applies exclusived telecommunication lines as communication lines for transmitting optimal target load from said instruction station data processor to said power generation plant data processors.