Interval sliding mode observer based incipient fault detection with application to a high-speed railway traction device

Zhang, Kangkang; Yan, Xing‐Gang; Shen, Jun

doi:10.1109/iris.2016.8066083

Cited by 7 publications

(8 citation statements)

References 22 publications

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“…Starting from the principle and design of traditional interval observers, this paper proposes and designs a current interval sliding mode observer by introducing a sliding mode observer [26][27][28]. As an important component of the residual generator, the introduction of interval sliding mode observer monitors the three-phase current in real time.…”

Section: Current Interval Sliding Mode Observermentioning

confidence: 99%

Inverter open circuit fault diagnosis based on residual performance evaluation

Sun,

Chen,

Wang

et al. 2023

IET Power Electronics

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Because of uncertain random noise and unknown disturbance, the observer‐based inverter fault diagnosis meets the problems of large deviation of current observation value and high false alarm rate. An inverter open‐circuit fault diagnosis method is proposed via residual performance evaluation. Firstly, the interval sliding mode observer is constructed by combining the interval observer with the sliding mode observer. Three phase current estimates are obtained and current residuals are calculated. Secondly, the residual performance indicators are calculated using the evaluation function. The fault detection is derived by comparing residual performance with the threshold. Thirdly, a residual information table is established based on the fault information contained in the residual for fault isolation. Finally, the proposed algorithm is validated on simulation and physical platforms. Compared with traditional observer‐based diagnostic methods, the introduction of residual performance evaluation improves the diagnostic speed by more than 50%. The interval sliding mode observer has higher estimation accuracy and anti‐interference ability in the presence of noise and external disturbances.

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Section: Current Interval Sliding Mode Observermentioning

confidence: 99%

Inverter open circuit fault diagnosis based on residual performance evaluation

Sun,

Chen,

Wang

et al. 2023

IET Power Electronics

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show abstract

“…Interval observers can be used in a wide range of applications such as control of linear and non‐linear systems, fault detection (FD) and isolation, and anti‐disturbance controller design [103, 106, 108–113]. In the following, some applications of the interval observers are discussed.…”

Section: Applicationsmentioning

confidence: 99%

“…One of the most important applications of the interval observers is to detect fault for the uncertain systems [39, 106, 112, 113, 115–118]. An event triggered an FD scheme based on interval observers is proposed for different kinds of discrete‐time and continuous‐time systems in [115].…”

Section: Applicationsmentioning

confidence: 99%

Design and applications of interval observers for uncertain dynamical systems

Khan

Xie

Zhang

et al. 2020

IET Circuits, Devices & Systems

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Section: Introductionmentioning

confidence: 99%

“…Recently, an ISMO is proposed in [23] to detect incipient sensor faults. Built on the author's previous work in [23], ISFD schemes with detailed analysis and solid results are developed for a class of nonlinear control systems in this paper. The Min-Max approach [24] is employed in this paper to obtain the interval model for a class of nonlinear functions.…”

Section: Introductionmentioning

confidence: 99%