Method, computer program, and device for determining variable setpoints of plant protection system
AssigneeKepco Engineering & Construction Company, Inc.
InventorsChang Jae LEE, Jae Hee YUN
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Abstract
A method of determining variable trip setpoints at the time of performing a safety analysis on a plant protection system includes: selecting a fixed analysis setpoint including a first analysis setpoint at which safety functions are initiated according to process variables of a power plant, and a first reaching time representing a time required to reach the first analysis setpoint; deriving a variable analysis setpoint satisfying conditions of the first fixed analysis setpoint; and determining a variable trip setpoint by reflecting uncertainty of an instrumentation and control system in relation to the variable analysis setpoint.
Claims19
A method of determining variable trip setpoints when performing a
- safety analysis on a plant protection system, the method comprising:
- selecting a first fixed analysis setpoint including a first analysis setpoint at which safety functions are initiated according to process variables of a power plant, and a first reaching time representing a time required to reach the first analysis setpoint;
- deriving a variable analysis setpoint satisfying conditions of the first fixed analysis setpoint;
- and
- determining a variable trip setpoint by reflecting uncertainty of an instrumentation and control system in relation to the variable analysis setpoint.
A device for determining variable trip setpoints when performing a safety analysis on a plant protection system, the device comprising a controller,
- wherein the controller is configured to operate to
- select a first fixed analysis setpoint including a first analysis setpoint at which safety functions are initiated according to process variables of a power plant, and a first reaching time representing a time required to reach the first analysis setpoint,
- derive a variable analysis setpoint satisfying conditions of the first fixed analysis setpoint, and
- determine a variable trip setpoint by reflecting uncertainty of an instrumentation and control system in relation to the variable analysis setpoint.
Dependencies are inferred from the claim text.