System and method for solving chemical engineering equations and model development using equation editor

US8688412B2 · kind B2 · utility

Assignee

• HONEYWELL INTERNATIONAL INC. · US

Inventors

• Sriram Hallihole · Kanchinakote, IN
• Madhukar Madhavamurthy Gundappa · Savanuru, IN
• Ranganathan Srinivasan · San Jose, US
• J. Ward MacArthur · Scottsdale, US
• Sanjay Venugopal · Survanagiri, IN
• Venkata K. P. Reddy Vurubindi · Atmakur, IN

Key dates

• Filing date: Apr 7, 2010
• Grant date: Apr 1, 2014
• Expiry date: Dec 20, 2031

Classification

• Technology area (CPC G): Physics
• CPC primary: G05B17/02
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A system includes a process controller and an equation evaluation apparatus. The equation evaluation apparatus includes an equation editor, a model factory, and an equation evaluation engine. The equation editor is adapted to receive equations describing a process to be controlled by the process controller. The equation editor is also adapted to generate model information representing the equations. The model factory is adapted to receive the model information and generate an equation stack representing the equations. The equation evaluation engine is adapted to receive evaluation information from the process controller, evaluate at least one of the equations using the evaluation information and the equation stack, and send a result of the evaluation to the process controller. The model information could include information representing algebraic equations, differential equations, algebraic states, differential states, inputs, parameters, constants, and/or expressions.