초록 ▼

A software plant process modeling system operates in multiple modes. The software system uses process unit models. A process unit model includes at least one equation and at least one variable. The software system sets a status of a variable in the unit model to a first state. The first state is ass

A software plant process modeling system operates in multiple modes. The software system uses process unit models. A process unit model includes at least one equation and at least one variable. The software system sets a status of a variable in the unit model to a first state. The first state is associated with a first mode of operation. The software system then sets the status of the same variable in the unit model to a second state. The second state is associated with a second mode of operation. The software system generates an open-equation model in operating in multiple modes. The software system receives a modification to at least one process unit model. Thus, a user may create a single plant process model for operation in multiple modes.

대표청구항 ▼

1. A method of configuring a process unit model in multiple operating modes of a process modeling system, wherein said process unit model includes at least one modeling equation and at least one variable, said method comprising the acts of:arranging a plurality of process unit models to create a flo

1. A method of configuring a process unit model in multiple operating modes of a process modeling system, wherein said process unit model includes at least one modeling equation and at least one variable, said method comprising the acts of:arranging a plurality of process unit models to create a flowsheet, where the flowsheet corresponds to a modeled process of a processing plant and the process unit models correspond to items of hardware in the processing plant; generating a plurality of class macros, where a class macro from the plurality of class macros corresponds to an operating mode of the process modeling system, where the class macro includes status for variables in the plurality of process unit models of the flowsheet; changing a mode of the process modeling system from a first mode of operation to a second mode of operation termed a selected mode, where at least one of the first mode and the second mode is a mode that controls the processing plant with the process unit model; selecting the class macro from the plurality of class macros corresponding to the selected mode; and automatically setting a status of a variable associated with said process unit model of the plurality of process unit models corresponding to the flowsheet from a first state to a second state to configure the process model for the selected mode of operation.