Multicompatible mode power supply driving plate for magnetic suspension train use
A magnetic levitation train and compatible mode technology, applied in the direction of electric components, electromechanical devices, electric vehicles, etc., can solve the problems of limited use, single power supply mode, etc., and achieve the effects of easy modularization, simple structure, and convenient manufacture
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Embodiment 1
[0011] Example 1: see figure 1 . The number of grooves on the drive board is 36, double-layer stacked windings, full pitch: 1-10; 2-11; 3-12; and so on. In the figure, 1-36 are conductive sheets, and 1'-36' represent groove numbers. figure 1 Only the specific bridges of the nine coils are shown in . This embodiment is a three-phase excitation mode: from the three conductive strips "1", "13" and "25", that is, the three points (A), (B) and (C) in the figure, introduce a three-phase sinusoidal AC power supply . Three-phase sinusoidal AC power can be obtained from single-phase AC through phase shifting by means of power electronics, which is a technology well known to those skilled in the art. The three-phase sinusoidal AC power supply establishes a backward magnetic field, because the three "phase windings" are equivalent to being connected into a "triangle A, B, C".
Embodiment 2
[0012] Example 2: see figure 2 , the structure of the driving board is the same as that in Embodiment 1. This embodiment is the stepping excitation mode of moving back and connecting power: the pulse power supply is passed through the electronic power switching switch, and the sequential, small-span, and backward-moving types are periodically performed between the conductive sheets of the entire row (that is, from The front of the car to the rear of the car direction) is switched, and the pulse wave is added to the "one by one" (also two or three at a time) coils from front to back. In this way, a stepped backward magnetic field is quite produced. Electronic power transfer switches are well known to those of ordinary skill in the art. figure 2 Among them, D means that only one coil element is connected in sequence, E means that three coil elements are connected in sequence, F means that five coil elements are connected in sequence, G represents the moving direction of the...
Embodiment 3
[0013] Embodiment 3: see image 3 . The structure of the driving board is the same as that in Embodiment 1. This embodiment is a shaded pole single-phase excitation mode: it enters from the conductive sheet 1 and exits from the conductive sheet 19. Jump the conductive sheet 19 to the conductive sheet 36, and connect the conductive sheet 18 back by the conductive sheet 36. Then between the conductive sheet 1 and the conductive sheet 18, directly add a single-phase sinusoidal AC power supply, which is approximately equivalent to a "period length" that is a spatial single-phase, sinusoidal pulsating magnetic field from the conductive sheet 1 to 36. Electromechanical science tells us: the pulsating magnetic field is equivalent to a standing wave, which cannot make the "rotor" rotate in a certain direction. But, if we add a "shaded pole" respectively in the (two) ranges of the second and fourth π / 2 of the pulsating sine wave in this space, the situation has just changed. The in...
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