Magnetic flux control manner null of vector contro 优质文献 相似文献VECTOR CONTROL OF THE INDUCTION MACHINE STATOR MAGNETIC FLUX The paper deals with one of the prospective methods of induction machine control called the stator flux vector control (SFVC). To enhance the accuracy of t... ...
Magnetic field, a vector field in the neighborhood of a magnet, electric current, or changing electric field, in which magnetic forces are observable. Magnetic fields such as that of Earth cause magnetic compass needles and other permanent magnets to lin
Magnetic Flux We construct a magnetic flux ϕB in much the same way that we construct an electric flux ϕE. For a constant magnetic field B and a plane surface A, the magnetic flux is defined as the scalar product of the magnetic field and the area. (32.2)ΦB=B·A The flux unit...
PURPOSE:To maintain a constant output control characteristic upon constant speed operation while generate an output, higher than the same upon constant output control, upon accelerating and decelerating, by changing a base speed upon the constant operation and the acceleration and deceleration. ...
where\(y\left(t\right)\)is the estimated signal,\({N}\)is the number of components,\(A\)is a vector of amplitudes and\(\tau\)is a vector of corresponding relaxation times. Relative amplitudes were obtained from summing the amplitudes for each fit: ...
For example, it has been shown that the Trigonal Prism state has uniform vector chirality (although the net scalar chirality is zero). Including quantum fluctuations may lead to a vector chiral spin liquid state47. (b) n = 2/3 results The {U}_{1}/{U}_{0} vs {U}_{0}/t ...
The two-dimensional solution of the spinless Klein–Gordon (KG) equation for scalar–vector harmonic oscillator potentials with and without the presence of constant perpendicular magnetic and Aharonov–Bohm (AB) flux fields is studied within the asymptotic function analysis and Nikiforov–Uvarov (NU)...
Solar filaments are commonly thought to be supported in magnetic dips, in particular, in those of magnetic flux ropes (FRs). In this Letter, based on the observed photospheric vector magnetogram, we implement a nonlinear force-free field (NLFFF) extrapolation of a coronal magnetic FR that supp...
magnetic induction,B, or magnetization,M, of a sample, respectively. In this work, we use holographic vector-field electron tomography (VFET)33. It provides a substantially higher spatial resolution (below 10 nm) than X-ray based methods, which is crucial for resolving the details of ...
Ultimately, in any Hamiltonian description of a quantum system, it is the gauge-dependent scalar and vector potentials which enter. Thus, there is an entire class of Hamiltonians describing one and the same physical system. In this context, gauge transformations of the potentials can be equivalent...