RU2601417C1 - Self-contained electric control device - Google Patents

Abstract

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering. In self-contained electric control device as synchronous generator contactless synchronous generator is used, and as motor is contactless direct current motor. Device includes second contact-free DC motor rigidly connected to latter, having input, connected to DC source output; automatic releaser first output is connected first contact-free DC motor second input via stabilizer,rigidly connected with said generator through actuator.

EFFECT: technical result is increasing of generator output voltage value, to certain value without using of additional energy resources.

1 cl, 1 dwg

Description

The invention relates to the field of electromechanics and can be used to control the shaft of an electric motor.

A device for autonomous electrical control, described in the book of V.K. Kitaev "Electrical Engineering with the Basics of Industrial Electronics", Moscow, 1985, pp. 138-140. It may include an actuator, a direct current source and an electric motor, with the help of which the shaft rotation can be transmitted to a synchronous generator that generates a three-phase voltage. However, the voltage generated by the generator cannot be increased without additional energy resources.

A device for electromechanical control, which is part of an autonomous power supply system, is described in patent No. 2284644, Byul No. 27 dated 09/27/2006, by A. Chasovskaya. It may include the same nodes as in the aforementioned analogue. In addition, the synchronous generator delivers a three-phase voltage to a three-phase rectifier, where it is rectified.

The device includes a potentiometer, a switch, a stabilizer and an automatic trip unit having an input and an output, respectively connected through a potentiometer to the output of a three-phase rectifier and to the input of a DC motor. However, the voltage generated by the generator cannot be increased without the use of additional energy resources.

Using the proposed device increases the magnitude of the voltage generated by the generator to a certain value without the use of additional energy. This is achieved by using a non-contact synchronous generator as a synchronous generator and as an electric motor of a non-contact direct current electric motor, as well as introducing a second second non-contact direct current electric motor rigidly connected to the latter, having an input connected to the output of the direct current source, and the first output of the automatic release is connected via stabilizer with a second input of the first non-contact direct current electric motor, rigidly connected through the actuator with the aforementioned generator.

In FIG. 1 and the following notation is used in the text:

1 - direct current source

2, 3 - contactless DC motors

4 - actuator

5 - non-contact synchronous generator

6 - three-phase rectifier

7 - stabilizer

8 - automatic release

9 - potentiometer,

wherein the direct current source 1 has an output connected to the input of a non-contact direct current electric motor 2, rigidly connected to a non-contact direct current electric motor 3, which is rigidly connected with an actuator 4, rigidly connected to a non-contact synchronous generator 5, the first, second and third outputs of which respectively, connected to the first, second and third inputs of a three-phase rectifier 6 having an output connected via a potentiometer 9 to the input of an automatic trip unit 8 having a first and a watt swarm outputs respectively connected through to the input of regulator 7 contactless dc motor 3 and to the input of the motor 3.

The device operates as follows

A direct current source 1 supplies a constant voltage to a non-contact direct current electric motor 2, which rotates a shaft rigidly connected to the shaft of a non-contact direct current electric motor 3. In non-contact electric motors a free non-brake rotation of the shaft is provided, which is transmitted to the actuator 4, the final element of which is rigidly connected to the non-contact synchronous generator 5, where the braking of the shaft due to the lack of brushes is reduced. As an actuator, a screw, propeller, wheelset, gearbox can be used. The rotational speed of the generator shaft is equal to the rotational speed of the shaft of the final element of the actuator, for example a wheel pair. The generator 5 delivers three phases of alternating voltage to a three-phase rectifier 6, which delivers a constant voltage through a potentiometer 9 to the input of the automatic trip unit 8, and then to the second input of the contactless DC motor 3. Using potentiometer 9, the optimal voltage selection at the input of the automatic trip unit 8 is received further to the second input of the electric motor 3. The increase in voltage is carried out together with an increase in the frequency of rotation of the shaft, and hence the voltage at the output of the rectifier 6. Consequently, this increase will be avalanche-like. To stop the increase in voltage, the automatic release 8 is activated when the voltage at its input is higher than the permissible value. As a result, the input of the electric motor 3 is turned off and the input of the stabilizer 7 is connected, which provides the rated voltage at the output, also supplied to the input of the electric motor 3.

An example of a specific implementation of an automatic trip unit is presented in the book by E.S. Traube, V.T. Mirgorodsky "Electrical Engineering and Fundamentals of Electronics", 1985, pp. 142-145. An example of a specific design of a non-contact direct current electric motor and a non-contact generator is presented in the book of M.M. Katzman "Handbook of electric machines", M., Asadema, 2005, pp. 315-317, p. 321. This method can be used in other inventions of the author.

The device can be used in stand-alone power systems. It can also be used in mobile products: cars, locomotives, ships, aircraft. This provides energy savings and a positive effect.

Claims (1)

An autonomous electrical control device consisting of a direct current source, a direct current electric motor, an actuator, a synchronous generator, a three-phase rectifier, an automatic trip unit, a potentiometer and a stabilizer, while the actuator is rigidly connected to the synchronous generator having the first, second and third outputs, respectively connected with the first, second and third inputs of a three-phase rectifier, and the output of the rectifier is connected through a potentiometer to the first input of the automatic an ascetic, characterized in that the use of a non-contact synchronous generator as a synchronous generator and as an electric motor of a non-contact direct current electric motor, and also introduces a second non-contact direct current electric motor rigidly connected to the latter having an input connected to the output of the direct current source, and the first the output of the automatic release is connected via a stabilizer to the second input of the first contactless electric motor a constant current rigidly connected through an actuator to the aforementioned generator.

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