RU2427070C1 - Electromechanical device - Google Patents

Abstract

FIELD: electricity.

SUBSTANCE: electromechanical device keeps continuous rotation of electric motor shaft at lower power of power supply owing to introducing storage battery of lower power and voltage multiplier; at that, output of storage battery of lower power is connected through voltage multiplier to the first input of automatic release mechanism.

EFFECT: keeping continuous shaft rotation without using any power supply.

1 dwg

Description

The invention relates to the field of electrical engineering and can be used in power systems.

Known electromechanical device, the description of which is set forth in the book V.E. Kitaeva "Electrical Engineering with the Basics of Industrial Electronics", Moscow: Higher School, 1985, pp. 138-140. In it, using a primary motor, which may be a direct current electric motor, powered by a direct current source, the synchronous generator is rotated with the exciter. The shaft of the generator is rigidly connected with the shaft of the electric motor. The current output from the DC source is regulated by a rheostat. The device may provide power to objects or rotate an actuator assembly, such as a screw.

However, the device cannot maintain a constant rotation of the motor shaft with reduced power source. A known electromechanical device that is part of an autonomous power supply system, presented by the author in patent No. 2284644. In it, by means of a direct current source, which may be a battery, direct current is supplied through a rheostat, through an automatic release into a direct current electric motor, the shaft of which rigidly connected to the shaft of a synchronous generator with a pathogen. The device can provide power to objects. The alternating voltage also enters the three-phase rectifier with a smoothing filter, which converts the alternating voltage to direct. From the output of the rectifier, the rectified voltage flows through the stabilization unit to the first input of the automatic release, with which it is connected to its first or second inputs depending on the voltage, power source or stabilizer. In particular, after fixing a certain voltage during operation from a direct current source, an automatic trip unit will connect a stabilization unit, which is an automatic power control unit, to an electric motor. And when the voltage drops below a certain value, the automatic release will connect a DC source to the electric motor. Next, the above steps are repeated again. Thus, due to the feedback between the synchronous generator and the electric motor, the aforementioned units carry out the rotation of the motor shaft without a power source for some time. However, the device cannot maintain a constant rotation of the motor shaft while reducing the power of the power source. Using the proposed device, the rotation of the motor shaft is maintained at a lower power source. This is achieved by introducing a battery of reduced power and a voltage multiplier. In this case, the output of the reduced battery through a voltage multiplier is connected to the first input of the automatic release.

In the drawing and in the text, the following notation:

1 - direct current source;

2 - rheostat;

3 - automatic release;

4 - a direct current electric motor;

5 - synchronous generator with a pathogen;

6 - voltage multiplier;

7 - stabilization unit;

8 - battery reduced power;

9 - three-phase rectifier with a smoothing filter.

In this case, the output of the DC source 1 through the rheostat 2 is connected to the second input of the automatic release 3, having a first input connected through a voltage multiplier 6 to the output of the battery with reduced power 8 and through the stabilization unit 7 with the output of a three-phase rectifier with a smoothing filter 9, the first one the second and third inputs of which are respectively connected to the first, second and third outputs of a synchronous generator with a pathogen 5, rigidly connected to a DC motor 4 having an input, connected with output of automatic release 3.

The operation of the device is as follows.

Using a direct current source 1, which can be either a battery or a rectifier, direct current is supplied through a rheostat 2, through an automatic release 3 to a direct current electric motor 4, the shaft of which is rigidly connected to the shaft of a synchronous generator with exciter 5. Depending on the nature In use, the objects can be supplied with a three-phase current, or the rotation of the element of the actuating unit, rigidly connected with the shaft of the generator 5. The alternating voltage enters the three-phase rectifier rer with smoothing filter 9, carrying AC to DC conversion. From the output of the rectifier 9, the rectified voltage through the stabilization unit 7, which maintains the voltage when it decreases by an amount not exceeding a strictly defined value, is fed to the first input of the automatic release 3, with which it is possible to select the connection of its first or second inputs depending on the voltage entering these inputs.

An example of a specific implementation of the stabilization unit is presented in the book by M.A.Shustov “Power Supplies and Stabilizers”, M .: House “Dodeka XXI“ Altex ”, 2007, p. 103, ras.9.3, 9.4.

An example of a specific implementation of an automatic trip unit is presented in the book “Electrical Engineering and Fundamentals of Electronics” by E. S. Traube and V. G. Mirgorodsky, 1985, M.: Higher School, pp. 142-143.

However, due to an increase in the load arising, for example, due to the connection of the consumed nodes of the object to a three-phase network or of the actuator nodes to the shaft of the generator 5, a drop in the power supplied to the electric motor 4 occurs due to a decrease in the current. To compensate for the power drop, in contrast to the main analogue, the proposed device introduces: a rechargeable battery of reduced power 8 and a voltage multiplier 6. The current from the battery enters the voltage multiplier, where the voltage is multiplied to a value equal to the voltage at the output of the stabilization unit 7. This eliminates a change in the voltage supplied through the automatic release 3 to the input of the electric motor 4, and the current from the multiplier 6 compensates for the decrease in current during operation of the generator 5 to the load. In the motor 4 can also be placed an additional rheostat to adjust the current.

An example of a specific implementation of the voltage multiplier is presented in the aforementioned source - the book of M.A.Shustov on pages 33-35. The method of work is as follows. After fixing a certain voltage from the DC source in the automatic release 3, its first input is connected to the output of the stabilization unit 7 and the voltage multiplier 6. However, if the voltage drops below a certain value, which can happen many times less than in the main analogue, automatic release 3 to its second input temporarily connects the power source 1. Thus, the proposed device provides a constant longer rotation of the shaft of the motor 4 due to its inertia, with a lower battery power 8 than the power of the DC source 1, which provides energy savings.

Claims (1)

An electromechanical device consisting of a direct current source, a rheostat, an automatic release of a direct current electric motor, a synchronous generator with an exciter, a three-phase rectifier with a smoothing filter and a stabilization unit, where the output of a direct current source through a rheostat is connected to the second input of an automatic release having a first input and output respectively connected to the output of the stabilization unit and to the input of a DC motor rigidly connected to a synchronous generator ohm with a pathogen having a first, second and third output, respectively connected to the first, second and third inputs of a three-phase rectifier with a smoothing filter; the output of which is connected to the input of the stabilization unit, characterized in that a lower battery and a voltage multiplier are introduced, while the output of a lower battery is connected via a voltage multiplier to the first input of the automatic release.