Fault tolerant control of outdoor air and AHU supply air temperature in VAV air conditioning systems using PCA method

This paper presents a fault tolerant control method to control the outdoor air ventilation and AHU supply air temperature, which concerned indoor air quality and humidity, respectively to satisfy ASHRAE Standard in VAV systems. The principal component analysis method, joint angle method, and compensatory reconstruction are used to detect, isolate, and reconstruct the fault, respectively for fault tolerant control. They are tested and evaluated in a simulation environment under the condition of temperature and flow sensors with fix bias faults.

[1]  Theodore H. Poister,et al.  Performance monitoring , 1996 .

[2]  David M. Himmelblau.  Use of Artificial Neural Networks to Monitor Faults and for Troubleshooting in the Process Industries , 1992 .

[3]  J. E. Jackson,et al.  Control Procedures for Residuals Associated With Principal Component Analysis , 1979 .

[4]  J. Edward Jackson,et al.  A User's Guide to Principal Components. , 1991 .

[5]  Seongkyu Yoon,et al.  Fault diagnosis with multivariate statistical models part I: using steady state fault signatures , 2001 .

[6]  Shengwei Wang,et al.  CO2-Based Occupancy Detection for On-Line Outdoor Air Flow Control , 1998, Indoor and Built Environment.

[7]  Shengwei Wang,et al.  CO 2-Based Occupancy Detection for On-Line Outdoor Air Flow Control , 1998 .

[8]  Spyros G. Tzafestas.  Second Generation Diagnostic Expert Systems: Requirements, Architectures and Prospects , 1991 .

[9]  J. E. Jackson.  A User's Guide to Principal Components , 1991 .

[10]  Jouko Pakanen,et al.  Demonstrating automated fault detection and diagnosis methods in real buldings , 2001 .

[11]  안병천,et al.  Model based fault detection and diagnosis for cooling tower , 1999 .

[12]  W. J. Coad.  Indoor air quality: A design parameter , 1996 .

[13]  Fu Xiao,et al.  AHU sensor fault diagnosis using principal component analysis method , 2004 .

[14]  Arthur L. Dexter,et al.  Fault Diagnosis in Air-Conditioning Systems: A Multi-Step Fuzzy Model-Based Approach , 2001 .

[15]  S. Joe Qin,et al.  Joint diagnosis of process and sensor faults using principal component analysis , 1998 .