Electric power plant general control system

• US 7,146,257 B2
• Filed: 03/28/2003
• Issued: 12/05/2006
• Est. Priority Date: 03/28/2002
• Status: Expired due to Term

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Tanaka, Toshihiko, Fukuda, Hiroshi, Yamada, Toshihiro, Murata, Jin
• Primary Examiner(s): Masinick, Michael D.
• Application Number:
  US10/508,545
• Publication Number:
  US 20050228545A1
• Time in Patent Office: 1,348 Days
• Field of Search: 700/286, 700/287, 307/11, 307/38, 307/113, 361/189
• US Class Current: 700/286
• CPC Class Codes: G05B 15/02 electric

Abstract

An electric power plant general control system for controlling power generating units. A generating unit (GU₂) can operate part of the auxiliaries based on an automation command outputted from a unit computer (UC₂) having a sequence function portion. The generating unit operates the remaining part of the auxiliaries based on an operation command outputted from an operation board (OB₂) without a sequence function portion, the operation board disposed separately from the unit computer. A general automation computer (GAC) is connected with an upper system of the unit computer, and an operator command is inputted from an interactive apparatus (I/F₄). The general control system is provided with a mock-up portion (Moc) equivalent to the sequence function portion disposed on the side of the auxiliaries controlled by the automation command outputted from the unit computer. The operation signal from the general automation computer is outputted to the unit computer and the operation board.

Claims

1. An electric power plant general control system comprising:

a power generating unit having plural auxiliaries, a subset of the plural auxiliaries being operated based on an automation command outputted from a unit computer having a sequence function portion, and the remaining auxiliaries in the plural auxiliaries being operated based on an operation command outputted from an operation board without a sequence function portion, the operation board disposed separately from the unit computer;

a general automation computer connected with an upper system of the unit computer and configured to receive an operator command inputted from an interactive apparatus and output an operation signal into the unit computer based on the operator command inputted from the interactive apparatus; and

a control system configured to control the remaining auxiliaries and including a mock-up portion configured to perform a function corresponding to the sequence function portion in the unit computer,

said control system configured to output the operation signal outputted from the general automation computer into both the unit computer and the operation board and operate all of the plural auxiliaries of the power generating unit.

4. The electric power plant general control system of any one of claims 1 to 3, wherein the general control system is configured so as to permit operation of a plurality of breakpoints of the unit computer by giving proceeding permission to a breakpoint by the general automation computer.

5. The electric power plant general control system of any one of claims 1 to 3, wherein the general automation computer is configured so as to be connected with the unit computers through a network.

2. An electric power plant general control system comprising:

a first power generating unit having first plural auxiliaries, all of the first plural auxiliaries being operated based on an automation command outputted from a first unit computer;

a second power generating unit having second plural auxiliaries, a subset of the second plural auxiliaries being operated based on an automation command outputted from a second unit computer, and the remaining auxiliaries in the second plural auxiliaries being operated based on an operation command from an operation board disposed separately from the second unit computer;

a general automation computer connected with an upper system of the first and the second unit computers and configured to receive an operator command inputted from an interactive apparatus and output an operation signal into the first and the second unit computers based on the operator command inputted from the interactive apparatus; and

a control system configured to control the remaining auxiliaries and including a mock-up portion configured to perform a function corresponding to a sequencer function portion configured to output the automation command outputted from the first or the second unit computer,

said control system configured to output the operation signal outputted from the general automation computer into both the first and the second unit computers and the operation boards and all of the first and second plural auxiliaries of the first and the second power generating units.

3. An electric power plant general control system comprising:

a first power generating unit having first plural auxiliaries operated based on an automation command outputted from a unit computer;

an operation board outputting an operation command to the first plural auxiliaries;

a second power generating unit having second plural auxiliaries excluded from automatic control and operated based on an operation command outputted from the operation board;

a general automation computer connected with an upper system of the unit computer and configured to output an operation signal based on an operator command inputted from an interactive apparatus;

a center-site linkage support terminal unit outputting information representing operation contents regarding the second plural auxiliaries excluded from automatic control based on an operation signal outputted from the general automation computer; and

a control system configured to control the second plural auxiliary and including a mock-up portion configured to perform a function corresponding to a sequencer function portion of the unit computer, output information representing the operation contents on the center-site linkage support terminal unit regarding the second plural auxiliaries, and control all of the first and second plural auxiliaries of the first and the second power generating units by the operation signal outputted from the general automation computer.

6. The electric power plant general control system of claim 3, wherein an automation operation command in accordance with a predetermined procedure is outputted into the center-site linkage support device terminal, and a feedback signal of the automation operation signal is substituted by an operation finish signal inputted from the center-site linkage support device terminal or an operation finish signal due to process condition changing.

7. The electric power plant general control system of claim 3, wherein the center-site linkage support device terminal outputting the automation operation command to the operator is configured so as to output a voice and a display combined together.

8. The electric power plant general control system of claim 3, wherein at least a part of communications between the center-site linkage support device terminal and the general automation computer is a wireless system.