Model updating method for on-line boiler combustion optimization

• Main Authors: WANG CHUNLIN, WANG JIANZHONG, XUE ANKE, ZHANG RIDONG, GE MING
• Format: Patent
• Language: Chinese; English
• Published: 11.08.2010
• Subjects: BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; COMBUSTION APPARATUS; COMBUSTION PROCESSES; CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; LIGHTING; MECHANICAL ENGINEERING; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PHYSICS; REGULATING; REGULATING OR CONTROLLING COMBUSTION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

The invention relates to a method for updating a boiler on-line combustion optimization model. The method utilizes the data exceeding the predictive error limit of an exit model to build a new model, then utilizes combustion data of a boiler and an optimization algorithm to find an optimum new model and the weight coefficient of the existing model, and utilizes an optimum weight coefficient to combine the new model with the existing model so as to predict the working conditions of a new boiler for realizing model update. The invention overcomes the defects that the traditional update method gives up the existing model and can not utilize the study result of the existing model to fully utilize the study result of the existing model, thereby greatly reducing the amount and the time of the calculation work of model update.