This paper proposes a new method to detect transformer inside incipient fault current using transformer internal parameters to determine the inside structure of transformer at good condition or bad. A transformer model was established by Jiles– Atherton theory using measured voltage and current and the initial parameters which were found using Genetic Algorithm (GA). Then, transformer internal ...

This paper has two immediate goals: Developing a simplified lumped parameters model that approximates the distributed parameters structure of steam superheaters; and developing a structure for fault detection and localization using actuators fault detection that can inform the operator about the faults following actuators blocking or changes in the burning process and heat transfer conditions. ...

This paper presents the methodology to perform sensitivity analysis for impedance-based fault location methods, considering power distribution systems and the presence of distributed generation. The proposed methodology helps to determine the power distribution system model parameters, which significantly affect the fault locator performance. Having identified such parameters, the next step is ...

studying active faults behavior for earthquake prediction and recognition is a concentrated subject in earth science. precise measurements of earthsurface deformation by geodetic observation provide a good reference for studying different geodynamic phenomena.  applying geodetic measurements in postseismic and interseismic intervals is an important tool for estimating strain accumulation and rh...

In this paper, the problem of robust fault diagnosis in a PEM Fuel Cell (PEM FC) system is addressed. Fault detection is based on a LPV interval observer able to face the variations of parameters with the operating while preserving the linear structure of the model. At the same time, this approach addresses the robustness problem against modeling uncertainty included as unknown parameters whose...

In this paper, we investigate software fault detection and fault correction processes based on infinite server queuing model which incorporate testing effort functions. Some researches proposed in the literature to study fault detection and fault correction processes. However, most of them do not consider the amount of resources consumed during fault detection and fault correction processes. Th...

A complete fault analysis scheme for long transmission line represented with distributed parameters is proposed in this paper. The synchronized samples from both ends of the transmission line are the data sources for this scheme. The paper derives a specific feature which equals to zero for normal situation and external faults, and is close to fault current during the internal faults. This feat...

Prompt detection and diagnosis of faults in industrial systems areessential to minimize the production losses, increase the safety of the operatorand the equipment. Several techniques are available in the literature to achievethese objectives. This paper presents fuzzy based control and fault detection for a6/4 switched reluctance motor. The fuzzy logic control performs like a classicalproporti...

For non-affine nonlinear flight control systems, a non-affine nonlinear robust fault tolerance control method is proposed. Here, the fault tolerance control framework is used, and on this basis, observer-based auxiliary system is designed to implicit fault parameters and disturbances information. Then reconfigurable controller is designed using the dynamic of observer-based auxiliary system, wh...