阅读说明：本技术 一种大孔径双通道旋变发送机的控制方法 (Control method of large-aperture two-channel rotary transformer transmitter ) 是由 赵斯慧 党格龙 黄加盛 李娟� 于 2021-08-17 设计创作，主要内容包括：本发明的实施例公开了一种大孔径双通道旋变发送机的控制方法及系统,属于电力技术领域。所述方法,包括：根据大孔径双通道旋变发送机所需达到的目标转速,确定所述旋变发送机所需的输入电压；根据所述所需的输入电压,计算所述旋变发送机上的无级变速旋钮的所需旋转角度；获取所述无级变速旋钮的实际旋转角度；根据所述无级变速旋钮的所需旋转角度与实际旋转角度,对所述变压器输出绕线长度进行自动调整,以使所述旋变发送机输出所述目标转速。其中,所述无级变速旋钮用于通过旋钮转过的弧长改变所述旋变发送机电压输入端变压器的输出漆包线匝数；本发明能够实时提供当前需要调整无级变速旋钮的角度值,并在输出转速不达标时进行自动调整控制。(The embodiment of the invention discloses a control method and a control system of a large-aperture two-channel rotary transformer transmitter, and belongs to the technical field of electric power. The method comprises the following steps: determining input voltage required by a large-aperture double-channel rotary transformer transmitter according to a target rotating speed required to be achieved by the rotary transformer transmitter; calculating the required rotation angle of a stepless speed change knob on the rotary change transmitter according to the required input voltage; acquiring the actual rotation angle of the stepless speed change knob; and automatically adjusting the output winding length of the transformer according to the required rotation angle and the actual rotation angle of the stepless speed change knob so that the rotary transformer transmitter outputs the target rotation speed. The stepless speed change knob is used for changing the number of turns of an output enameled wire of a voltage input end transformer of the rotary transformer transmitter through the arc length rotated by the knob; the invention can provide the angle value of the stepless speed change knob which needs to be adjusted currently in real time, and can carry out automatic adjustment control when the output rotating speed does not reach the standard.)

1. A control method of a large-aperture double-channel rotary transformer transmitter is characterized by comprising the following steps:

determining input voltage required by a large-aperture double-channel rotary transformer transmitter according to a target rotating speed required to be achieved by the rotary transformer transmitter;

calculating the required rotation angle of a stepless speed change knob on the rotary change transmitter according to the required input voltage; the stepless speed change knob is used for changing the number of turns of an output enameled wire of a voltage input end transformer of the rotary transformer transmitter through the arc length rotated by the knob;

acquiring the actual rotation angle of the stepless speed change knob;

and automatically adjusting the output winding length of the transformer according to the required rotation angle and the actual rotation angle of the stepless speed change knob so that the rotary transformer transmitter outputs the target rotation speed.

2. The method of claim 1, wherein the input voltage required by the resolver is calculated according to a first formula:

the method comprises the steps that the number of turns of an enameled wire in the rotary transformer transmitter is N, the number of the enameled wire turns in the rotary transformer transmitter is K, a preset constant coefficient is K, the number of pole pairs of the rotary transformer transmitter is P, the target rotating speed is v, and phi represents the magnetic flux of a fixed magnetic field in the rotary transformer transmitter.

3. The method as claimed in claim 2, wherein the predetermined constant coefficient is 1.1-1.25.

4. The method of claim 2, wherein the desired rotation angle of the infinitely variable knob on the resolver is calculated according to a second formula:

where θ represents a desired rotation angle of a stepless speed change knob on the rotary change transmitter, U_maxRepresenting the actual input voltage value, n, of the input of the resolver transmitter_maxAnd the number of turns of the input enameled wire of the transformer is represented, L represents the vertical distance between two adjacent turns of the enameled wire of the transformer, and R represents the rotating radius of the stepless speed change knob.

5. The method as claimed in claim 4, wherein the automatically adjusting the length of the transformer output winding according to the desired rotation angle and the actual rotation angle of the stepless speed change knob comprises:

calculating an adjustment value of the number of turns of the output enameled wire of the transformer according to a third formula;

automatically adjusting the number of turns of the output enameled wire of the transformer according to the adjustment value;

wherein the third formula is:

in the third formula, Δ n represents an adjustment value of the number of turns of the output enameled wire of the transformer; theta₀Representing an actual rotation angle of the continuously variable transmission knob; the adjustment ratio of the arc length of the stepless speed change knob to the number of turns of the output enameled wire of the transformer is 1: 1.

6. A control system of a large-aperture double-channel rotary transformer transmitter is characterized by comprising:

the stepless speed change knob is arranged on the large-aperture double-channel rotary transformer transmitter and used for changing the number of turns of an output enameled wire of a voltage input end transformer of the rotary transformer transmitter through the arc length of the rotary knob;

the voltage calculation module is used for determining the input voltage required by the rotary transformer transmitter according to the target rotating speed required by the rotary transformer transmitter;

the rotating angle calculating module is connected with the voltage calculating module and used for calculating the required rotating angle of the stepless speed change knob according to the input voltage required by the rotary change transmitter;

the acquisition module is used for acquiring the actual rotation angle of the stepless speed change knob;

and the adjusting module is connected with the rotating angle calculating module and the collecting module and is used for automatically adjusting the output winding length of the transformer according to the required rotating angle and the actual rotating angle of the stepless speed change knob so as to enable the rotating transformer transmitter to output the target rotating speed.

7. The control system of a large-aperture two-channel resolver transmitter according to claim 6, wherein the voltage calculation module is specifically configured to calculate the required input voltage of the resolver transmitter according to a first formula:

the method comprises the steps that the number of turns of an enameled wire in the rotary transformer transmitter is N, the number of the enameled wire turns in the rotary transformer transmitter is K, a preset constant coefficient is K, the number of pole pairs of the rotary transformer transmitter is P, the target rotating speed is v, and phi represents the magnetic flux of a fixed magnetic field in the rotary transformer transmitter.

8. The control system of a large-aperture dual-channel resolver transmitter according to claim 6, wherein the rotation angle calculation module is specifically configured to calculate the required rotation angle of the stepless speed change knob on the resolver transmitter according to the following second formula:

where θ represents a desired rotation angle of a stepless speed change knob on the rotary change transmitter, U_maxRepresenting the actual input voltage value, n, of the input of the resolver transmitter_maxAnd the number of turns of the input enameled wire of the transformer is represented, L represents the vertical distance between two adjacent turns of the enameled wire of the transformer, and R represents the rotating radius of the stepless speed change knob.

9. The control system of the large-aperture two-channel rotary transformer transmitter according to claim 8, wherein the adjusting module is specifically configured to calculate an adjustment value of the number of turns of the output enameled wire of the transformer according to a third formula, and automatically adjust the number of turns of the output enameled wire of the transformer according to the adjustment value;

wherein the third formula is:

in the third formula, Δ n represents an adjustment value of the number of turns of the output enameled wire of the transformer; theta₀Representing an actual rotation angle of the continuously variable transmission knob; the adjustment ratio of the arc length of the stepless speed change knob to the number of turns of the output enameled wire of the transformer is 1: 1.

Technical Field

The invention belongs to the technical field of electric power, and particularly relates to a control method and a control system for a large-aperture double-channel rotary transformer transmitter.

Background

A resolver (resolver) is an electromagnetic sensor, also known as a resolver. The small AC motor is used to measure angular displacement and speed of rotating shaft of rotating object and consists of stator and rotor. The stator winding is used as the primary side of the transformer and receives the excitation voltage, and the excitation frequency is usually 400, 3000, 5000HZ and the like. The rotor winding is used as a secondary side of the transformer, and induction voltage is obtained through electromagnetic coupling. Obviously, the control of the resolver is directly related to its measurement accuracy.

In the prior art, generally, the operating parameters of the rotary transformer are manually set to be pre-calculated parameter values, so that the rotating speed of the rotary transformer reaches the target rotating speed to achieve the required working performance, and if the required rotating speed cannot be reached after the parameters are set, the parameters such as the input voltage and the like of the rotary transformer need to be manually adjusted again according to the output rotating speed condition and experience until the rotary transformer reaches the target rotating speed. Therefore, in the prior art, the output control of the rotary transformer mainly depends on manual adjustment, an effective feedback control mode is not available, the rotating speed is difficult to be accurately controlled in a short time, and the control efficiency is low.

Disclosure of Invention

In view of this, the embodiment of the present invention provides a control method for a large-aperture dual-channel resolver, which is used to solve the problems that the existing large-aperture dual-channel resolver has great dependence on manual and experience in controlling the rotational speed, and it is difficult to accurately control the rotational speed in a short time. The invention can provide the angle value of the stepless speed change knob which needs to be adjusted currently for the working personnel in real time, and carry out automatic adjustment control when the output rotating speed does not reach the standard.

In a first aspect, an embodiment of the present invention provides a method for controlling a large-aperture two-channel resolver transmitter, including the following steps:

determining input voltage required by a large-aperture double-channel rotary transformer transmitter according to a target rotating speed required to be achieved by the rotary transformer transmitter;

calculating the required rotation angle of a stepless speed change knob on the rotary change transmitter according to the required input voltage; the stepless speed change knob is used for changing the number of turns of an output enameled wire of a voltage input end transformer of the rotary transformer transmitter through the arc length rotated by the knob;

acquiring the actual rotation angle of the stepless speed change knob;

and automatically adjusting the output winding length of the transformer according to the required rotation angle and the actual rotation angle of the stepless speed change knob so that the rotary transformer transmitter outputs the target rotation speed.

In an alternative embodiment, the required input voltage of the resolver transmitter is calculated according to the following first formula:

the method comprises the steps that the number of turns of an enameled wire in the rotary transformer transmitter is N, the number of the enameled wire turns in the rotary transformer transmitter is K, a preset constant coefficient is K, the number of pole pairs of the rotary transformer transmitter is P, the target rotating speed is v, and phi represents the magnetic flux of a fixed magnetic field in the rotary transformer transmitter.

In an optional embodiment, the predetermined constant coefficient is 1.1 to 1.25.

In an alternative embodiment, the desired angle of rotation of the infinitely variable knob on the rotary transmitter is calculated according to the following second formula:

where θ represents a desired rotation angle of a stepless speed change knob on the rotary change transmitter, U_maxRepresenting the actual input voltage value, n, of the input of the resolver transmitter_maxAnd the number of turns of the input enameled wire of the transformer is represented, L represents the vertical distance between two adjacent turns of the enameled wire of the transformer, and R represents the rotating radius of the stepless speed change knob.

In an optional embodiment, the automatically adjusting the winding length of the output end of the transformer according to the required rotation angle and the actual rotation angle of the stepless speed change knob includes:

calculating an adjustment value of the number of turns of the output enameled wire of the transformer according to a third formula;

automatically adjusting the number of turns of the output enameled wire of the transformer according to the adjustment value;

wherein the third formula is:

in the third formula, Δ n represents an adjustment value of the number of turns of the output enameled wire of the transformer; theta₀Representing an actual rotation angle of the continuously variable transmission knob; the adjustment ratio of the arc length of the stepless speed change knob to the number of turns of the output enameled wire of the transformer is 1: 1.

In a second aspect, an embodiment of the present invention provides a control system for a large-aperture two-channel resolver transmitter, including:

the stepless speed change knob is arranged on the large-aperture double-channel rotary transformer transmitter and used for changing the number of turns of an output enameled wire of a voltage input end transformer of the rotary transformer transmitter through the arc length of the rotary knob;

the voltage calculation module is used for determining the input voltage required by the rotary transformer transmitter according to the target rotating speed required by the rotary transformer transmitter;

the rotating angle calculating module is connected with the voltage calculating module and used for calculating the required rotating angle of the stepless speed change knob according to the input voltage required by the rotary change transmitter;

the acquisition module is used for acquiring the actual rotation angle of the stepless speed change knob;

and the adjusting module is connected with the rotating angle calculating module and the collecting module and is used for automatically adjusting the output winding length of the transformer according to the required rotating angle and the actual rotating angle of the stepless speed change knob so as to enable the rotating transformer transmitter to output the target rotating speed.

In an optional embodiment, the voltage calculating module is specifically configured to calculate the input voltage required by the resolver transmitter according to a first formula as follows:

the method comprises the steps that the number of turns of an enameled wire in the rotary transformer transmitter is N, the number of the enameled wire turns in the rotary transformer transmitter is K, a preset constant coefficient is K, the number of pole pairs of the rotary transformer transmitter is P, the target rotating speed is v, and phi represents the magnetic flux of a fixed magnetic field in the rotary transformer transmitter.

In an optional embodiment, the rotation angle calculating module is specifically configured to calculate the required rotation angle of the stepless speed change knob on the rotary transmission according to the following second formula:

where θ represents a desired rotation angle of a stepless speed change knob on the rotary change transmitter, U_maxRepresenting the actual input voltage value, n, of the input of the resolver transmitter_maxAnd the number of turns of the input enameled wire of the transformer is represented, L represents the vertical distance between two adjacent turns of the enameled wire of the transformer, and R represents the rotating radius of the stepless speed change knob.

In an optional embodiment, the adjusting module is specifically configured to calculate an adjusting value of the number of turns of the output enameled wire of the transformer according to a third formula, and automatically adjust the number of turns of the output enameled wire of the transformer according to the adjusting value;

wherein the third formula is:

in the third formula, Δ n represents an adjustment value of the number of turns of the output enameled wire of the transformer; theta₀Representing an actual rotation angle of the continuously variable transmission knob; the adjustment ratio of the arc length of the stepless speed change knob to the number of turns of the output enameled wire of the transformer is 1: 1.

The invention provides a control method and a system of a large-aperture double-channel rotary transformer transmitter, wherein a stepless speed change knob is added in the rotary transformer transmitter, the number of turns of an output enameled wire of a transformer at the input voltage end of the rotary transformer transmitter can be changed by rotating the knob, so that the input voltage of the double-channel rotary transformer transmitter is changed, the rotating speed of the double-channel rotary transformer transmitter is further changed, in order to ensure that the double-channel rotary transformer transmitter can obtain accurate rotating speed, the input voltage required by the double-channel rotary transformer transmitter is obtained according to the rotating speed value required to be reached, and the angle value required to be rotated by the stepless speed change knob is further obtained, so that a worker can be informed of the angle required to be rotated, and the working efficiency of the system is improved; and then, the number of turns of the enameled wire at the output end of the transformer is automatically adjusted by utilizing the actual rotation angle value, so that the manual operation error can be automatically eliminated, and the control reliability and the control accuracy of the rotary transformer transmitter are improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a flowchart of a control method of a large-aperture two-channel resolver transmitter according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a control system of a large-aperture two-channel resolver transmitter according to an embodiment of the present invention.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Fig. 1 is a flowchart of a control method of a large-aperture two-channel resolver transmitter according to an embodiment of the present invention. Referring to fig. 1, the method includes the following steps S101-S104:

s101: and determining the input voltage required by the rotary transformer transmitter according to the target rotating speed required to be reached by the large-aperture double-channel rotary transformer transmitter.

In an alternative embodiment, the required input voltage of the resolver transmitter is calculated according to the following first formula (1):

in the first formula (1), U represents an input voltage required by the resolver transmitter, N represents the number of turns of an enameled wire inside the resolver transmitter, K represents a preset constant coefficient, P represents the number of pole pairs of the resolver transmitter, v represents the target rotating speed, and Φ represents the magnetic flux of a constant magnetic field inside the resolver transmitter.

Preferably, the value of the preset constant coefficient K is 1.1-1.25.

S102: and calculating the required rotation angle of the stepless speed change knob on the rotary change transmitter according to the required input voltage.

The stepless speed change knob is used for changing the number of turns of output enameled wires of a voltage input end transformer of the rotary transformer transmitter through the arc length of the rotary knob. Preferably, the adjustment ratio of the arc length of the stepless speed change knob to the number of turns of the output enameled wire of the transformer is 1: 1.

In an alternative embodiment, the required rotation angle θ of the continuously variable knob for the rotational transmission to output the target rotation speed may be calculated according to the following second equation (2):

wherein θ represents a desired rotation of a stepless speed change knob on the rotary change transmitterAngle, U_maxRepresenting the actual input voltage value, n, of the input of the resolver transmitter_maxAnd the number of turns of the input enameled wire of the transformer is represented, L represents the vertical distance between two adjacent turns of the enameled wire of the transformer, and R represents the rotating radius of the stepless speed change knob.

In this embodiment, the required rotation angle of the stepless speed change knob on the rotary change transmitter is calculated and provided to the worker, so that the worker can directly rotate the stepless speed change knob according to the required rotation angle, and the method directly provides the required adjustment parameters without relevant experience requirements on the worker.

S103: and acquiring the actual rotation angle of the stepless speed change knob.

S104: and automatically adjusting the output winding length of the transformer according to the required rotation angle and the actual rotation angle of the stepless speed change knob so that the rotary transformer transmitter outputs the target rotation speed.

In this embodiment, since the operator may have a rotation error when rotating the stepless speed change knob, and the manual adjustment cannot achieve precise control, the value for automatically adjusting the number of turns of the enameled wire at the output end of the transformer may be calculated according to the actual rotation angle of the operator and the required rotation angle.

In an alternative embodiment, an adjustment value of the number of turns of the output enamel wire of the transformer may be calculated according to the third formula (3), and then the number of turns of the output enamel wire of the transformer may be automatically adjusted according to the adjustment value.

Wherein the third formula is:

in the third formula (3), Δ n represents an adjustment value of the number of turns of the output enameled wire of the transformer; theta₀Representing an actual rotation angle of the continuously variable transmission knob; in this embodiment, the arc length of the stepless speed change knob and the number of turns of the output enameled wire of the transformer are adjustedThe ratio was 1: 1.

According to the control method of the large-aperture double-channel rotary transformer transmitter, the stepless speed change knob is additionally arranged in the rotary transformer transmitter, the number of turns of the output enameled wire of the transformer at the input voltage end of the rotary transformer transmitter can be changed by rotating the knob, so that the input voltage of the double-channel rotary transformer transmitter is changed, the rotating speed of the double-channel rotary transformer transmitter is further changed, in order that the double-channel rotary transformer transmitter can obtain accurate rotating speed, the input voltage required by the double-channel rotary transformer transmitter is obtained according to the rotating speed value required to be reached, and the angle value required to be rotated by the stepless speed change knob is further obtained, so that a worker can be informed of the angle required to be rotated, and the working efficiency of a system is improved; and then, the number of turns of the enameled wire at the output end of the transformer is automatically adjusted by utilizing the actual rotation angle value, so that the manual operation error can be automatically eliminated, and the control reliability and the control accuracy of the rotary transformer transmitter are improved.

Corresponding to the control method of the large-aperture two-channel resolver transmitter provided in the embodiment of the present invention, the embodiment of the present invention further provides a control system of the large-aperture two-channel resolver transmitter, as shown in fig. 2, the system includes:

and the stepless speed change knob 11 is arranged on the large-aperture double-channel rotary transformer transmitter and is used for changing the number of turns of output enameled wires of a voltage input end transformer of the rotary transformer transmitter through the arc length rotated by the knob.

And the voltage calculation module 12 is configured to determine an input voltage required by the resolver transmitter according to a target rotation speed required to be reached by the resolver transmitter. Preferably, the voltage calculating module 12 may calculate the input voltage required by the resolver transmitter according to the first equation (1) described above.

And a rotation angle calculation module 13, connected to the voltage calculation module 12, for calculating a required rotation angle of the stepless speed change knob according to the input voltage required by the rotary transformer transmitter calculated by the voltage calculation module 12. Preferably, the rotation angle calculation module 13 may calculate the required rotation angle of the continuously variable shifting knob according to the above-described second equation (2).

And the acquisition module 14 is used for acquiring the actual rotation angle of the stepless speed change knob.

And the adjusting module 15 is connected with the rotation angle calculating module 13 and the collecting module 14, and is used for automatically adjusting the output winding length of the transformer according to the required rotation angle and the actual rotation angle of the stepless speed change knob, so that the rotary transformer transmitter outputs the target rotation speed. Preferably, the adjusting module 15 may calculate an adjusting value of the number of turns of the output enameled wire of the transformer according to the third formula (3), and automatically adjust the number of turns of the output enameled wire of the transformer according to the calculated adjusting value.

In this embodiment, the technical solution of the embodiment of the method shown in fig. 1 may be implemented, and the implementation principle and the technical effect are similar, which are not described herein again.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations. The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.