Power generation plant remote operation system

• US 20040111187A1
• Filed: 10/07/2003
• Published: 06/10/2004
• Est. Priority Date: 08/07/2001
• Status: Active Grant

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Fukai, Masayuki, Kusaka, Satoshi
• Granted Patent: US 6,973,376 B2
• Time in Patent Office: Days
• US Class Current: 700/286
• CPC Class Codes: G05B 15/02 electric

Abstract

A power generation plant remote control and operation system is constituted by a plurality of thermal power generation plants 100 each of which is provided with a communication terminal 200 and a function of controlling respectively a boiler control unit 110, a turbine control unit 120 and an auxiliary machine sequence control unit 130 based on an operation signal inputted via the communication terminal 200 and a remote control center 10 which is connected to the communication terminal 200 via an internet 300, accesses the control units 110, 120 and 130 representing control objects in the respective thermal power generation plants 100 and remotely controls operating states including starting and stopping of the concerned thermal power generation plant 100, further, the thermal power generation plant 100 pays a consideration to the remote control center 10 based on its own operating state controlled by the remote control center 100. Thereby, a system is provided in which the starting and stopping operation of electric power generation plants is performed remotely and automatically depending on the circumstance of machines and apparatuses of the respective plants or the same is performed semiautomatically and properly after being provided with a guidance.

Claims

1. A power generation plant remote control and operation system comprising a plurality of thermal power generation plants each of which is provided with a communication terminal and a function of controlling respective elements based on an operation signal inputted via the communication terminal and a remote control center which is connected to the communication terminal via a communication line, accesses the elements representing control objects in the respective thermal power generation plants and remotely controls operating states including starting and stopping of the concerned thermal power generation plant.

2. A power generation plant remote control and operation system of claim 1, wherein in place of the above remote control of the operating states including starting and stopping the concerned thermal power generation plant, the system being constituted in such a manner that after performing a guidance of starting and stopping operation for the concerned thermal power generation plant, the control of the operation states including starting and stopping the plant is remotely aided.

3. A power generation plant remote control and operation system of claim 1, wherein the communication line is constituted by a network line including an internet.

4. A power generation plant remote control and operation system of claim 1, wherein the communication line is constituted by a network line including a satellite communication line.

5. A power generation plant remote control and operation system of claim 1, wherein the remote control center monitors the states of the respective elements and/or the operating states of the thermal power generation plants.

6. A power generation plant remote control and operation system of claim 1 or 2, wherein the thermal power generation plant pays a consideration to the remote control center based on its own operating state controlled by the remote control center.

7. A power generation plant remote control and operation system of claim 6, wherein a reference operating state of the above consideration payment is set based on any one of number of auxiliary machines in the plant, complexity of control object line system, magnitude of output of the plant, and amount of signals of the plant.

8. A power generation plant remote control and operation system of claim 1 or 2, wherein the thermal power generation plant pays a consideration to the remote control center based on the amount of cost saving by an improvement proposal presented by the remote control center.