SU1476572A2 - Thyratron motor - Google Patents

Abstract

The invention relates to electrical engineering, in particular to contactless DC motors with semiconductor switches controlled by rotor angle position sensors. The aim of the invention is to improve the energy performance of a valve motor. By introducing an additional primary excitation winding F ₁ G001 of the rotor angular position sensor shifted relative to the primary primary winding FG by single-pole division, it is possible to adjust the angle of rotation of the rotor angular position sensor when changing the operating mode of the motor by changing the voltage applied to the sensor excitation windings, and thereby improve the energy performance of the electric motor. The invention can be used as an actuator in following systems. 5 il.

Description

one

The invention relates to electrical engineering, in particular, to contactless DC motors with semiconductor switches controlled by rotor angle position sensors, and can be used as an actuator in the following systems.

The aim of the invention is to improve the energy performance.

FIG. 1 shows a sketch of the stator and rotor of a three-phase electric motor; in fig. 2 - electric motor, cross section; in fig. 3 shows the windings of the core and the windings of the rotor angular position sensor with the number of phases m equal to two; in fig. 4 - the same, with the number of phases equal to three; in fig. 5 explains the principle of angle adjustment.

rotor angle sensor installation.

The valve motor is built on the basis of an electromechanical converter (fig. 1, 2), containing a magnetically soft toothed rotor 1, permanent magnets 2, 3, magnetic PM 4 and a stator magnetic circuit consisting of two parts 5, 56 with toothed poles 6-41 (in the limit, the pole represents one tooth), enclosed by the coil windings 42-77, connected according to the circuit shown in FIG. 4, forming the phases ah, by and cz, coils of the primary windings fg and f, g T of the rotor angular position sensor connected according to the circuit shown in FIG. 4, and the secondary coils he, dk and 1m of the angle sensor

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one

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cl

R

the rotor positions are connected according to the scheme shown in FIG. four.

The two-phase electric motor (Fig. 3) contains a core winding with phases ax and b, a primary winding of a rotor position sensor with phases fg and f., G, and a secondary winding of a sensor with phases he and dk.

The operation of the electric motor is carried out as follows.

When applying to the primary winding fg of the sensor of the angular position of the rotor with no additional current

765724

displacement of the sensor stator relative to the motor stator in valve electric motors with a separate rotor position sensor.

The three-phase emf system thus obtained carries information about the angular position of the rotor of the valve motor. When the secondary windings he, dk, 1m are connected to the semiconductor switch, from which the phases of the electric motor core winding are powered, the currents in the phases will vary in accordance with

a coil of alternating voltage high 15 with a rotor angle, creating frequencies of magnetic fluxes generated by the torque, the coils of the primary winding of the sensor. Referring to FIG. 4 inclusion

the angular position of the rotor, interlock-coils of the primary windings fg and f, g,

with he secondary coils, and he, dk secondary coils,

20

dk, 1m. As a result, the coils of the secondary winding induce the emf of mutual induction, the amplitudes of which during the rotation of the rotor change in accordance with the change in the conductivity of the air gap under the poles 6-41. The series-opposite connection of the secondary windings he, dk, 1m provides a periodic change in the modulated phase emf of the secondary winding em, е-, е в (Fig. 5) as the rotor rotates, shifted relative to each other by an angle. The position and connection of the winding coils fg, he, dk, 1m of the rotor angle position sensor provides a zero value of the sensor installation angle,

Similarly, when applying to the winding f, g, with de-energized winding fg

1m excludes the mutual inductive coupling of these coils and the magnetic fluxes of the permanent magnets and the coils 42-77 of the winding of the boxes, by, cz.

25 Thus, the invention makes it possible to create a valve motor based on an electromechanical converter with permanent magnets arranged together with a winding on the stator core, characterized by improved energy performance, which is achieved by controlling the angle of the rotor in the process

35 changes in the mode of operation of the electric motor, ease of manufacture, the absence of a magnetic field, the scattering of permanent magnets from the outside and smaller weight and dimensions due to the function V

AC voltage high frequency-constructive combination

you are in the secondary windings he, dk, 1m induced phase voltage system e

 f

i

(Fig. 4) shifted by each

power and information parts of the electric motor.

Claims (2)

Invention Formula relative to each other at an angle of 27G / 3 and with respect to emf induced in windings he, dk, 1m primary winding- Valve motor Coy, the angle of the center ff / 2. With a joint auth. No. 1427509, about tl and h to the mountain of both primary windings fg and f, B, the rotor angle position sensor in the secondary windings he, dk, 1m induced total emf er1, eЈi eЈ S (Fig-5) from both primary windings . By varying the high-frequency voltages on the primary windings of the rotor's angular position sensor, it is possible to adjust the advance angle of the switch transistors, which is analogous to the angular 50 y and with the fact that, in order to improve the energy performance of the valve motor, by adjusting the angle of the rotor angle position sensor in the stator slots, the additional primary winding of the rotor angle position sensor 55 is similar to the main primary winding one pole division of the stator. 1m excludes the mutual inductive coupling of these coils and the magnetic fluxes of the permanent magnets and the coils 42-77 of the winding of the boxes, by, cz. Thus, the invention makes it possible to create a valve motor based on an electromechanical converter with permanent magnets arranged together with a winding of the core on the stator, characterized by improved energy performance, which is achieved by adjusting the angle of the rotor in the process changes in the mode of operation of the electric motor, ease of manufacture, the absence of a magnetic field, the scattering of permanent magnets from the outside and smaller mass and dimensions due to the function and information parts of the electric motor. Invention Formula y and with the fact that, in order to improve the energy performance of the valve motor, by adjusting the angle of installation of the rotor angle position sensor in the stator slots, the additional primary winding of the rotor angle position sensor is similar to the primary winding by one pole division of the stator. 15. 7J 72 71 70 to 46 W 48 52 53 5b 55 58 IT s 5q 2. 4Fig. 2 X y      . . Ј. L g. g. Fig.Z U a g in J I I I I O I I I I P I | | 1P and I I FIG L behind Editor A. Makovska Compiled by A. Santalov Tehred L.OliynykCorrector A. Obruchar Order 2165/54 Circulation 647 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5 Production and Publishing Combine Patent, Uzhgorod, st. Gagarin, 101 4 / dgd U FIG. five Subscription