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Fault detection, isolation and identification for hybrid systems with unknown mode changes and fault patterns

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Fault detection, isolation and identification for hybrid systems with unknown mode changes and fault patterns
นักวิจัย : Yu, Ming , Wang, Danwei , Luo, Ming , Zhang, Danhong , Chen, Qijun
คำค้น : DRNTU::Engineering::Electrical and electronic engineering.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : http://hdl.handle.net/10220/11115 , http://dx.doi.org/10.1016/j.eswa.2012.01.103
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Expert systems with applications
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

This article presents a solution to the problem of multiple fault detection, isolation and identification for hybrid systems without information on mode change and fault patterns. Multiple faults of different patterns are considered in a complex hybrid system and these faults can happen either in a detectable mode or in a non-detectable mode. A method for multiple fault isolation is introduced for situation of lacking information on fault pattern and mode change. The nature of faults in a monitored system can be classified as abrupt faults and incipient faults. Under abrupt fault assumption, i.e. constant values for fault parameters, fault identification is inappropriate to handle cases related to incipient fault. Without information on fault nature, it is difficult to achieve fault estimation. Situation is further complicated when mode change is unknown after fault occurrence. In this work, fault pattern is represented by a binary vector to reduce computational complexity of fault identification. Mode change is parameterized as a discontinuous function. Based on these new representations, a multiple hybrid differential evolution algorithm is developed to identify fault pattern vector, abrupt fault parameter/incipient fault dynamic coefficient, and mode change indexes. Simulation and experiment results are reported to validate the proposed method.

บรรณานุกรม :
Yu, Ming , Wang, Danwei , Luo, Ming , Zhang, Danhong , Chen, Qijun . (2555). Fault detection, isolation and identification for hybrid systems with unknown mode changes and fault patterns.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Yu, Ming , Wang, Danwei , Luo, Ming , Zhang, Danhong , Chen, Qijun . 2555. "Fault detection, isolation and identification for hybrid systems with unknown mode changes and fault patterns".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Yu, Ming , Wang, Danwei , Luo, Ming , Zhang, Danhong , Chen, Qijun . "Fault detection, isolation and identification for hybrid systems with unknown mode changes and fault patterns."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
Yu, Ming , Wang, Danwei , Luo, Ming , Zhang, Danhong , Chen, Qijun . Fault detection, isolation and identification for hybrid systems with unknown mode changes and fault patterns. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.