Plant operation apparatus, plant operation method, and plant operation program

A plant operation method of operating a multi-shaft combined-cycle power plant including at least a plurality of gas turbines as a plurality of devices to be operated, the method comprising:

• displaying an activation setting screen on which activation sequence in an activation operation of the gas turbines and number of gas turbines to be in an operating state after the activation operation can be selected, and a shutdown setting screen on which shutdown sequence in a shutdown operation of the gas turbines and number of gas turbines to be in an operating state after the shutdown operation can be selected;
• generating activation sequence information in which activation elements of the respective devices to be operated, required for the activation operation, are arranged in order according to activation sequence and number selected on the activation setting screen, and shutdown sequence information in which shutdown elements of the respective devices to be operated, required for the shutdown operation, are arranged in order according to shutdown sequence and number selected on the shutdown setting screen;
• outputting an operation command of the activation element of the respective devices to be operated based on the activation sequence information and a current plant operating state, and an operation command of the shutdown element of the respective devices to be operated based on the shutdown sequence information and a current plant operating state;
• and
• displaying an activation progress screen in which a plurality of display items indicating the activation elements of the respective devices to be operated are arranged based on the activation sequence information, and/or a shutdown progress screen in which a plurality of display items indicating the shutdown elements of the respective devices to be operated are arranged based on the shutdown sequence information, wherein
• the operation command is outputted to a general load controller that controls the respective devices to be operated comprehensively,
• the activation progress screen is displayed in a display mode capable of identifying sequence of the activation elements of the respective devices to be operated, and/or the shutdown progress screen is displayed in a display mode capable of identifying sequence of the shutdown elements of the respective devices to be operated,
• the activation progress screen is displayed in a manner that when an activation element requires completion of multiple activation elements in previous steps then lines extending from each of multiple activation elements in previous steps are combined and connected to an activation element in a subsequent step d, and/or the shutdown progress screen is displayed in a manner that when a shutdown element requires completion of multiple shutdown elements in previous steps then lines extending from each of multiple shutdown elements in previous steps are combined and connected to a shutdown element in a subsequent step,
• an arrangement sequence of the display items on the activation progress screen does not match with an actual activation operation sequence because of that the display items on the activation progress screen include a display item indicating an activation element not required to be operated according to the activation sequence information, and/or an arrangement sequence of the display items on the shutdown progress screen does not match with an actual shutdown operation sequence because of that the display items on the shutdown progress screen include a display item indicating an shutdown element not required to be operated according to the shutdown sequence information, and
• a display item indicating an activation element to be operated next of the display items on the activation progress screen is displayed in a display mode different from a display mode of other display items based on the activation sequence information and a current plant operating state to compensate the mismatch between the arrangement sequence of the display items on the activation progress screen and the actual activation operation sequence, and/or a display item indicating a shutdown element to be operated next of the display items on the shutdown progress screen is displayed in a display mode different from a display mode of other display items based on the shutdown sequence information and a current plant operating state to compensate the mismatch between the arrangement sequence of the display items on the shutdown progress screen and the actual shutdown operation sequence.

A non-transitory computer-readable recording medium in which a plant operation program for operating a multi-shaft combined-cycle power plant including at least a plurality of gas turbines as a plurality of devices to be operated is recorded, the plant operation program causing a computer to perform:

• a procedure of displaying an activation setting screen on which activation sequence in an activation operation of the gas turbines and number of gas turbines to be in an operating state after the activation operation can be selected, and a shutdown setting screen on which shutdown sequence in a shutdown operation of the gas turbines and number of gas turbines to be in an operating state after the shutdown operation can be selected;
• a procedure of generating activation sequence information in which activation elements of the respective devices to be operated, required for the activation operation, are arranged in order according to activation sequence and number selected on the activation setting screen, and shutdown sequence information in which shutdown elements of the respective devices to be operated, required for the shutdown operation, are arranged in order according to shutdown sequence and number selected on the shutdown setting screen;
• a procedure of outputting an operation command of the activation element of the respective devices to be operated based on the activation sequence information and a current plant operating state, and an operation command of the shutdown element of the respective devices to be operated based on the shutdown sequence information and a current plant operating state;
• and
• a procedure of displaying an activation progress screen in which a plurality of display items indicating the activation elements of the respective devices to be operated are arranged based on the activation sequence information, and/or a shutdown progress screen in which a plurality of display items indicating the shutdown elements of the respective devices to be operated are arranged based on the shutdown sequence informationwherein
• the operation command is outputted to a general load controller that controls the respective devices to be operated comprehensively,
• the activation progress screen is displayed in a display mode capable of identifying sequence of the activation elements of the respective devices to be operated, and/or the shutdown progress screen is displayed in a display mode capable of identifying sequence of the shutdown elements of the respective devices to be operated,
• the activation progress screen is displayed in a manner that when an activation element requires completion of multiple activation elements in previous steps then lines extending from each of multiple activation elements in previous steps are combined and connected to an activation element in a subsequent step, and/or the shutdown progress screen is displayed in a manner that when a shutdown element requires completion of multiple shutdown elements in previous steps then lines extending from each of multiple shutdown elements in previous steps are combined and connected to a shutdown element in a subsequent step,
• an arrangement sequence of the display items on the activation progress screen does not match with an actual activation operation sequence because of that the display items on the activation progress screen include a display item indicating an activation element not required to be operated according to the activation sequence information, and/or an arrangement sequence of the display items on the shutdown progress screen does not match with an actual shutdown operation sequence because of that the display items on the shutdown progress screen include a display item indicating an shutdown element not required to be operated according to the shutdown sequence information, and
• a display item indicating an activation element to be operated next of the display items on the activation progress screen is displayed in a display mode different from a display mode of other display items based on the activation sequence information and a current plant operating state to compensate the mismatch between the arrangement sequence of the display items on the activation progress screen and the actual activation operation sequence, and/or a display item indicating a shutdown element to be operated next of the display items on the shutdown progress screen is displayed in a display mode different from a display mode of other display items based on the shutdown sequence information and a current plant operating state to compensate the mismatch between the arrangement sequence of the display items on the shutdown progress screen and the actual shutdown operation sequence.