SU1198675A1 - Thyratron motor - Google Patents

Description

The invention relates to electrical engineering, in particular to DC motors with contactless switching, i.e., a valve and an electric motor (VD3.

The aim of the invention is to increase the energy performance of VD by increasing the sensitivity of the device for measuring the angular position of the rotor.

In the drawing, a portion of the electrical circuit of the device is shown.

The motor contains a stator with a multiphase winding I (one phase is shown in the drawing), a capacitor 2 serving as a filter separating the high-frequency measuring current and power supply circuits and creating a resonance in the high-frequency phase winding, a high-frequency voltage source 3, a high current reference element 4 frequency with a given, single-phase winding 5,

2

located on the rotor, a capacitor 6 connected to a single-phase winding 5. Active resistance phase

and windings of 5 g _e conditionally shown

5 separately and designated by positions 7 and 8 respectively. The mutual inductance of the rotor windings and the stator is determined by the angular position of the rotor relative to the stator phase.

ten

In the proposed device, the capacitance of the capacitor 2 is selected so as to ensure the resonance of currents at high frequency. Single phase parameters

15 winding 5, located on the rotor,

- and the capacity of the additional capacitor 6 is selected so as to provide resonance at high frequency. The ratio of the maximum and minimum high-frequency current, which determines the sensitivity of the device for measuring the angular position of the rotor, in this case increases sharply.

Claims (2)

1. A VALVE ELECTRIC MOTOR containing a rotor, a stator with a multiphase armature winding connected to the output of a semiconductor switch, the control circuits of which are connected to the output of a control unit containing a ring switch on magnetic amplifiers, the control windings of each of which are included in the commutator circuit Pa and the AC windings through a high-frequency voltage source and a dividing filter are connected at one end to one phase of the armature winding and the other g to the supporting element, in parallel with which the switch of the semiconductor switch is connected, which is equipped with a single-phase winding and a capacitor placed on the rotor, the beginning and end of the single-phase winding are connected to the terminals of the capacitor. 2, Electric motor according to Clause G., imitating the fact that the capacitor is made with a capacitance of the resistance equal to the inductive resistance of the single-phase winding at the frequency of the high-frequency voltage source * ABOUT with 00 about> m cl 1198675 one