Fault diagnostic system for chillers based on characteristic petri net modeling

作者：Xu Bing; Zhu Ya Cheng; Su Jun; Fan Qiu Min

来源：Journal of Shanghai Jiaotong University, 2015, 49(6): 923-928.

DOI：10.16183/j.cnki.jsjtu.2015.06.030

• Characteristic model
• Chiller efficiency
• Chillers
• Diagnostic systems
• Fault diagnostic systems
• Inference algorithm
• Information resource
• Matrix operations

The chillers are important in air-conditioning systems, whose operational status is directly related to the HVAC system performance and stability buildings. The fault diagnose of chillers has received wide attention. This paper discussed characteristic modeling technology in fault diagnosis for chillers with fuzzy Petri net modling technique. Using fuzzy Petri net to represente knowledge and inference algorithm for matrix operations, the characteristic parameters of chiller fault indication and relationships was discribed. Using the proposed diagnostic systems, the information resources of characteristic parameters can be used for fault diagnosis and the chiller efficiency indexes of COP can be used for comprehensive diagnosis of fault diagnosis. The test results of plant running show the feasibility and accuracy of the fault diagnostic system.

• 出版日期2015
• 单位上海海事大学