Topic
Stuck-at fault
About: Stuck-at fault is a research topic. Over the lifetime, 9707 publications have been published within this topic receiving 160254 citations.
Papers published on a yearly basis
Papers
More filters
••
TL;DR: The problem of fault tolerant control in the framework of discrete event systems modeled as automata is solved using a general control architecture based on the use of special kind of diagnoser, called ''diagnosing controller'', which is used to safely detect faults and to switch between the nominal control policy and a bank of reconfigured control policies.
132 citations
••
TL;DR: New techniques for speeding up deterministic test pattern generation for VLSI circuits by reducing number of backtracks with a low computational cost are presented and incorporated into an advanced ATPG system for combinational circuits called ATOM.
Abstract: This paper presents new techniques for speeding up deterministic test pattern generation for VLSI circuits. These techniques improve the PODEM algorithm by reducing number of backtracks with a low computational cost. This is achieved by finding more necessary signal line assignments, by detecting conflicts earlier, and by avoiding unnecessary work during test generation. We have incorporated these techniques into an advanced ATPG system for combinational circuits, called ATOM. The performance results for the ISCAS85 and full scan version of the ISCAS89 benchmark circuits demonstrated the effectiveness of these techniques on the test generation performance. ATOM detected all the testable faults and proved all the redundant faults to be redundant with a small number of backtracks in a short amount of time.
131 citations
••
TL;DR: In this paper, the authors investigated support vector machine based fault type and distance estimation scheme in a long transmission line using post fault single cycle current waveform and pre-processing of the samples is done by wavelet packet transform.
131 citations
••
TL;DR: A novel NN-based active fault-tolerant control scheme with fault alarm is proposed, which can minimize the time delay between fault occurrence and accommodation, and reduce the adverse effect on system performance.
Abstract: In this paper, the problem of adaptive active fault-tolerant control for a class of nonlinear systems with unknown actuator fault is investigated. The actuator fault is assumed to have no traditional affine appearance of the system state variables and control input. The useful property of the basis function of the radial basis function neural network (NN), which will be used in the design of the fault tolerant controller, is explored. Based on the analysis of the design of normal and passive fault tolerant controllers, by using the implicit function theorem, a novel NN-based active fault-tolerant control scheme with fault alarm is proposed. Comparing with results in the literature, the fault-tolerant control scheme can minimize the time delay between fault occurrence and accommodation that is called the time delay due to fault diagnosis, and reduce the adverse effect on system performance. In addition, the FTC scheme has the advantages of a passive fault-tolerant control scheme as well as the traditional active fault-tolerant control scheme's properties. Furthermore, the fault-tolerant control scheme requires no additional fault detection and isolation model which is necessary in the traditional active fault-tolerant control scheme. Finally, simulation results are presented to demonstrate the efficiency of the developed techniques.
130 citations
••
TL;DR: The proposed fault detection method for open-circuit faults of a switching device in neutral-point-clamped inverter systems is based on the inherent characteristic of continuous pulsewidth modulation and has faster detection capability that is within two sampling times and is much simpler to implement.
Abstract: This paper presents a fault detection method for open-circuit faults of a switching device in neutral-point-clamped inverter systems, which is based on the inherent characteristic of continuous pulsewidth modulation The proposed method is achieved by measuring the pole voltage and its duration time The pole voltage includes information of switching states in the inverter system but not affected by the load Therefore, a fault condition of the inverter system itself can be diagnosed through analysis of pole voltage Compared to conventional fault detection methods, the proposed fault detection method has faster detection capability that is within two sampling times and is much simpler to implement Therefore, the use of the proposed method could minimize harmful effects such as imbalance of dc-link voltage and overstress on other switching devices The validity of the proposed fault detection method is verified through experimental results
130 citations