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Flux Weakening

Flux weakening control of electric starter generator based on permanent magnet machine

Flux weakening control of electric starter generator based on permanent magnet machine

... the flux weakening control systems reviewed above were mostly investigated (for stability and control design) for the motoring mode, there are very few reports on the design or stability analysis of the ...

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Real-Time Flux-weakening Control for an IPMSM Drive System Using a Predictive Controller

Real-Time Flux-weakening Control for an IPMSM Drive System Using a Predictive Controller

... robust flux-weakening control strategy for a surface-mounted permanent- magnet motor drive ...tuning flux-weakening ...voltage-constraint-based flux-weakening control of an IPMSM ...

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Sensorless flux-weakening control of permanent-magnet brushless machines using third harmonic back EMF

Sensorless flux-weakening control of permanent-magnet brushless machines using third harmonic back EMF

... voltages often have to be measured and A/D converters are required. In order to reduce the number of voltage transducers, voltages can be deduced from the inverter switching status and the measured dc-link voltage [9]. ...

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Flux weakening control of Permanent Magnet Machine based aircraft electric starter generator

Flux weakening control of Permanent Magnet Machine based aircraft electric starter generator

... improved flux weakening schemes for surface mounted permanent magnet synchronous machine drives employing space vector modulation," in Industrial Electronics Society, ...“Adaptive ...

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Online optimal flux-weakening control of permanent-magnet brushless AC drives

Online optimal flux-weakening control of permanent-magnet brushless AC drives

... the motor which assumes the correct parameters. As expected, when the EMF constant is increased, the torque capability increases in the constant torque operating range, the base speed reduces, and the ...

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Iron Loss Prediction Using Modified IEM-Formula during the Flux Weakening for Permanent Magnet Synchronous Machines

Iron Loss Prediction Using Modified IEM-Formula during the Flux Weakening for Permanent Magnet Synchronous Machines

... Figure 6 Harmonic spectra and total iron loss prediction using classic and modified IEM-Formula during FWOT, 305. where: ( a ) existing dominant harmonics on total iron loss and specia[r] ...

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Flux analysis of a novel dual rotor hybrid excitation flux switching machine (DRHEFSM)

Flux analysis of a novel dual rotor hybrid excitation flux switching machine (DRHEFSM)

... excitation flux switching machines ...the flux weakening region, the armature winding current needed to be ...the flux of PM however it will increase the copper loss and the efficiency and ...

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The Particle Flux Structure and the Search for a Flux-Expansion Divertor in TJ-II

The Particle Flux Structure and the Search for a Flux-Expansion Divertor in TJ-II

... ISDEP (Integrator of Stochastic Differential Equa- tions in Plasmas) [10], is a Montecarlo code that follows ion guiding-centre trajectories considering a given electro- static potential profile and ion-ion as well as ...

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Open magnetic flux and magnetic flux closure during sawtooth events

Open magnetic flux and magnetic flux closure during sawtooth events

... magnetic flux and opening and closure voltages that we obtain for this ...particle flux around 1130 UT (Figure 2e) is also seen as an intensification of the FUV brightness and appears as a revival of the ...

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Structural weakening of the Merapi dome identified by drone photogrammetry after the 2010 eruption

Structural weakening of the Merapi dome identified by drone photogrammetry after the 2010 eruption

... Close-range aerial images show more details of the horseshoe-shaped structures and the southern block (Fig. 4). We find five fractures in three different areas (c, d and e). A closer view of those fractures (first, ...

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The Neutron Flux Variation in the Earth’s Atmosphere Depending on the Solar Proton Flux

The Neutron Flux Variation in the Earth’s Atmosphere Depending on the Solar Proton Flux

... creased flux of charged particles toward the Earth and belonging solar magnetic winds) deflect protons of the galactic radiation, and therefore decrease, for instance, neutron flux as secondary particles of ...

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Flux expulsion with dynamics

Flux expulsion with dynamics

... all radii the right-hand side of (5.2) dominates and the field will remain at leading order kinematic. A core will form through flux expulsion and will shrink to an exponentially decaying remnant at the origin ...

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Experimental Research of the Weakening of the fFuselage Skin by RFSSW Single Row Joints

Experimental Research of the Weakening of the fFuselage Skin by RFSSW Single Row Joints

... This paper presents the results of experimen- tal investigations aimed at determining the degree of weakening of the skin sheet by RFSSW welds. The weakening of the skin was determined based on the ...

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Reducing Interpolant Circuit Size by Ad Hoc Logic Synthesis and SAT-Based Weakening

Reducing Interpolant Circuit Size by Ad Hoc Logic Synthesis and SAT-Based Weakening

... different patterns. We propose an experimental evaluation for six different sequences: A, B, AB , BA, ABAB and BABA. We run our logic synthesis compaction procedure before any weakening/strengthening attempt ...

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Frozen-in condition for ions and electrons: implication on magnetic flux transport by dipolarizing flux bundles

Frozen-in condition for ions and electrons: implication on magnetic flux transport by dipolarizing flux bundles

... magnetic flux content. In other words, magnetic flux is not conserved in their tran- sit through the diffusion ...magnetic flux transport associated with the particle ...

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Flux Software Component

Flux Software Component

... The above method calls first include all text files in the current directory. Then any file ending with “a.txt” is filtered out, using the regular expression “.*a\.txt”. Note that the regular expression filter is matched ...

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Microfinance: A Field in Flux

Microfinance: A Field in Flux

... in flux faced with unresolved debates and ongoing ...of flux, it is increasingly important to understand both the unifying trends as well as the points of disagreement within the ...

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Metabolic Flux and Fitness

Metabolic Flux and Fitness

... First, the control coeffi- cient of the P-galactosidase enzyme with regard to fitness is quite small ( C = 0.018); therefore, genetic variants demonstrating small[r] ...

7

Pulselike Ruptures on Strong Velocity Weakening Frictional Interfaces: Dynamics and Implications

Pulselike Ruptures on Strong Velocity Weakening Frictional Interfaces: Dynamics and Implications

... In the strong velocity-weakening formulation, the frictional coefficient decreases with increasing slip rate at a rate faster than logarithmic so that the friction coefficient at seismic slip rates is of the order ...

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A PREDICTION REGARDING THE WEAKENING OF THE BLUE SHIFT OF LIGHT FROM GEOSYNCHRONOUS SATELLITES

A PREDICTION REGARDING THE WEAKENING OF THE BLUE SHIFT OF LIGHT FROM GEOSYNCHRONOUS SATELLITES

... Let us now recall that our distances and periods of time are altered via just quantum mechanics [2,3]. It is that the rest mass, or the same, rest total energy decreases, via Eq.(3) of the object in consideration in a ...

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