Automatic Detection and Diagnosis of faults in Sensors used in EMS

Taal, A.; Itard, L.C.M.; Zeiler, W.; Zhao, Y

Automatic Detection and Diagnosis of faults in Sensors used in EMS

Title

Automatic Detection and Diagnosis of faults in Sensors used in EMS

Author

Taal, A. (The Hague University of Applied Sciences)
Itard, L.C.M. (TU Delft OLD Housing Quality and Process Innovation; The Hague University of Applied Sciences)
Zeiler, W. (Eindhoven University of Technology)
Zhao, Y (Eindhoven University of Technology)

Contributor

Heiselberg, Per Kvols (editor)

Date

2016

Abstract

A much occurring problem in the Energy Management Systems of existing buildings and HVAC services is that the measurements are unreliable. In this article a methodology is described which can be used to determine the presence of errors in energy monitoring, caused by faulty measurements. These errors can be detected and subsequently diagnosed. Detection of monitoring errors is done based on occurring symptoms. Determination of these symptoms is done using the laws of conservation of energy, mass and pressure. The diagnosis is done by using a statistical method based on Bayesian theory in which the chance of an error occurring is determined based on ( combinations of) the symptoms. The method is built in a Bayesian Belief Network (BBN) software tool. The advantage of BBN is that it is consistent with the working methods of experts in installation technology.

Subject

FDD
Bayesian method
BBN
fault detection
fault diagnosis
systems theory
Building Energy Management System
Energy Monitoring System
sensor faults
model faults, HVAC equipment