This paper presents the implementation of broken rotor bar fault detection in an inverter-fed induction motor using motor current signal analysis (MCSA) and prognosis with fuzzy logic. Recently, inverter-fed induction motors have become very popular because of their adjustable speed drive. They have been used in many vital control applications such as rolling mills, variable speed compressors, ...

This paper presents a logic synthesis tool called BETSY (BIST Environment Testable Synthesis) for synthesizing circuits that achieve complete (100%) fault coverage in a user specified BIST environment. Instead of optimizing the circuit fo r a generic pseudo-random test pattern generator (by maximizing its random pattern testability), the circuit is optimized for a specific test pattem generator...

Abstract As the key equipment of power conversion, stability inverter directly affects working state equipment. Aiming at open circuit fault tube, this paper designs a diagnosis and tolerance scheme three-phase bridge based on current signal. Firstly, amplitude phase characteristics vector are used to judge location tube. Then output characteristic signal is converted into fault-tolerant contro...

The reliability of the transformer differential protection is under threat from multiple interferences, including inrush condition, current saturation and arc fault condition. For improvement, a new method proposed to discriminate conditions other non-fault conditions. Firstly, identifies unidirectional via index, since only it exhibits characteristic. Then, remaining signals are classified by ...

the doruneh fault is one of the longest and most prominent faults in iran. however, only two recorded historical earthquakes with magnitudes more than 7 might be related to this fault. for getting more information on this fault more investigation in different fields are required. fault displacement is one of the most important parameters needed to explore the fault activity. in this study, with...

(paper pages 133-156) zagros active fold-thrust belt lies on the northern margin of the arabian continental crust it is a young fold-thrust mountain belt currently shortening, thickening and uplifting as a result of the collision of the arabian and iranian plates. rethickening of crust during collisional orogenies could have been carried out by reversal of fault motion along the mesozoic normal...

In order to identify the fault nature when phase-to-phase short circuit occurs in distribution lines and realize adaptive reclosing of more accurately, a identification scheme using an inverter-based power electronic technology supply from stored energy capacitor is proposed this paper. The corresponding device designed which composed rectification, storage inverters. Supplied by high voltage s...

the nnw-trending dena fault, with 140 km length, cuts the major structures of zagros fold-thrust belt in borujen region. the fault has divided the region in two zones, in which different structural, andmorphological features as well assedimentation and seismtectonic characteristics have developed. this study presents a new interpretation for the kinematics of dena fault based on field evidence....

Identifying fault categories, especially for compound faults, is a challenging task in mechanical fault diagnosis. For this task, this paper proposes a novel intelligent method based on dual-tree complex wavelet packet transform (DTCWPT) and multiple classifier fusion. In this method, in order to effectively extract underlying fault characteristic information, DTCWPT, which enjoys such attracti...