文章基本信息

标题：Distributed Diagnosis of Actuator and Sensor Faults in HVAC Systems * * This work was supported by the European Research Council under the ERC Advanced Grant ERC-2011-AdG-291508
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作者：Panayiotis M. Papadopoulos ; Vasso Reppa ; Marios M. Polycarpou 等
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2017
卷号：50
期号：1
页码：4209-4215
DOI：10.1016/j.ifacol.2017.08.816
语种：English
出版社：Elsevier
摘要：AbstractThis paper presents a model-based methodology for diagnosing actuator and sensor faults affecting the temperature dynamics of a multi-zone heating, ventilating and air-conditioning (HVAC) system. By considering the temperature dynamics of the HVAC system as a network of interconnected subsystems, a distributed fault diagnosis architecture is proposed. For every subsystem, we design a monitoring agent that combines local and transmitted information from its neighboring agents in order to provide a decision on the type, number and location of the faults. The diagnosis process of each agent is realized in three steps. Firstly, the agent performs fault detection using a distributed nonlinear estimator. After the detection, the local fault identification is activated to infer the type of the fault using two distributed adaptive estimation schemes and a combinatorial decision logic. In order to distinguish between multiple local faults and propagated sensor faults, a distributed fault isolation is applied using the decisions of the neighboring agents. Simulation results of a 5-zone HVAC system are used to illustrate the effectiveness of the proposed methodology.
关键词：Keywordsactuator faultssensor faultsbuilding automationdistributed fault diagnosis