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Search results for: fault
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Year: 2011, Volume: 11, Number: 2
... determined by the RPFC would be better than a conventional phase shifting rotor position. Fig.1 shows a rotary phase shifting transformer. RPST is also more suitable for handling fault transformer (RPST) which the magnetic axes of its primary conditions than PST and SSSC. Omitting the magnetizing and secondary windings are displaced from each other by ...
Year: 2010, Volume: 10, Issue: 2
... be some 3% higher than with IM drives, but special precautions must be taken to limit overvoltage when the inverter trips at high speed or to separate a faulty inverter from the motor, as the excitation cannot be terminated. Field weakening for minimising the stator current in the voltage-control region and for constant- voltage operation ...
Year: 2010, Volume: 10, Issue: 2
... constraints, and not by the oriented aspects (description logic for argument querying limitations of the available technologies. and the AIF ontology for supply chain integration). Fault tree analysis, for the analytical decomposition of the relevant steps in the process flow of a food product, and ACKNOWLEDGMENTS fuzzy logic, for quantitative measures of ...
Year: 2010, Volume: 10, Issue: 2
... deterministic effects (mean wind, tower particularly during start-up, which can cause voltage shadow) and stochastic variations due to turbulence. The collapse e.g. after a fault on the grid. To overcome such deterministic and stochastic parts are added together in order stability problems, the use of power electronics in wind to get the ...
Year: 2010, Volume: 10, Issue: 2
... where Wk    v cut ï€in  is ready to generate (that is, not out of service). Availability includes downtime for any reasons (faults, repairs, .  rated  maintenance, upgrades). The duration of downtimes, caused by malfunctions, are dependent on necessary repair work, ...
Year: 2010, Volume: 10, Issue: 4
... and small dimensions, it brings up the power coefficient of the job being done [6 ,7]. system to the optimum level, it reduces the faults to minimum In this study, measurement of the reactive power in and reduces the cost. Furthermore, the portability feature of single-phase systems has been developed, ...
Year: 2010, Volume: 10, Issue: 4
... or synchronous machines due to lack of windings on the stator or translator structure, Index Terms — Linear switched reluctance motor, finite easier manufacturing and maintenance, good fault element analysis, force ripple, FFT tolerance capability [1]. LSRMs are classified as (a) longitudinal flux (b) transverse flux. This ...
Year: 2011, Volume: 11, Number: 2
... x, y, z, t  K. Hence, there are perform vulnerability assessments based on the simulation equivalence relationships between distinct elementary of random or intentional faults [15]. In [16], the authors extensions pairs: present two extension algorithms to generate the minimum e xy  e zt  e ...
Year: 2015, Volume: 15, Number: 2
... R. B. B. Jose, "A Power Electronic Controller for PV-tied Grid-connected System with Single able to limit the dc-side current in the event that a fault Parameter Sensing for Mppt Using Boost Converter and Line- occurs in the grid. However, in the future work, it is commutated Inverter," in ...
Year: 2015, Volume: 15, Number: 2
... this small amount of measured values the best graph is a normal probability plot, which creates a better graph than the histogram, which is generated just by the default by Minitab in the process capability analysis sixpack. The σ (standard deviation) is 1,675 and the Cpk (process capability index) is 1 ...
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