Excitation of switch magnetic resistance motor
A reluctance motor and multi-phase switch technology, applied in the direction of AC motor control, electronic commutation motor control, single motor speed/torque control, etc., can solve problems such as not suitable for driving devices
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[0034] The present invention is implemented in a preferred embodiment in a transmission system such as that shown in FIG. 1 with a commutation circuit for each phase shown in FIG. 2 . According to the invention, by programming the controller 14, the control strategy is adapted to develop the idle configuration of the conversion circuit.
[0035] Figure 6 A typical rotor position sensor (rpt) of the three-phase four-pole drive in Fig. 1 is schematically shown in . Three sensors are shown arranged mechanically offset by an angle of 120°, but any offset arrangement equal to an electrical angle of 120° may be used. This schematic has teeth with unit void ratio. In practice, this can be varied slightly to accommodate any non-ideal characteristics of the sensor, such as the beam width of an optical sensor or the fringing flux of a Hall effect sensor, so that the final signal of the rpt is at or acceptably close to a mark-to-space ratio of 1 .
[0036] Figure 6 The output of the...
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