A control method for a large-aperture dual-channel resolver transmitter

Abstract

This invention discloses a control method and system for a large-aperture dual-channel resolver transmitter, belonging to the field of power technology. The method includes: determining the required input voltage for the resolver transmitter based on the target speed to be achieved; calculating the required rotation angle of the continuously variable transmission (CVT) knob on the resolver transmitter based on the required input voltage; obtaining the actual rotation angle of the CVT knob; and automatically adjusting the output winding length of the transformer based on the required and actual rotation angles of the CVT knob, so that the resolver transmitter outputs the target speed. The CVT knob is used to change the number of turns of the output enameled wire of the transformer at the voltage input terminal of the resolver transmitter by rotating the knob through an arc length. This invention can provide the current angle value of the CVT knob that needs adjustment in real time and automatically adjust the control when the output speed does not meet the target.

Description

Technical Field

[0001] This invention belongs to the field of power technology, and in particular relates to a control method and system for a large-aperture dual-channel resolver transmitter. Background Technology

[0002] A resolver / transformer is an electromagnetic sensor, also known as a synchrotron. It's a small AC motor used to measure the angular displacement and angular velocity of a rotating object's shaft. It consists of a stator and a rotor. The stator windings, acting as the primary winding, receive the excitation voltage, typically at frequencies of 400, 3000, or 5000 Hz. The rotor windings, acting as the secondary winding, receive the induced voltage through electromagnetic coupling. Clearly, the quality of the resolver's control directly affects its measurement accuracy.

[0003] In existing technologies, the operating parameters of a rotary transformer are typically set manually to pre-calculated values ​​to achieve the desired rotational speed and performance. If the desired speed is not reached after setting the parameters, the input voltage and other parameters need to be manually adjusted based on the output speed and experience until the rotary transformer reaches the target speed. Therefore, existing technologies for output control of rotary transformers primarily rely on manual adjustment, lacking an effective feedback control method. This makes it difficult to achieve precise speed control in a short time, resulting in low control efficiency. Summary of the Invention

[0004] In view of this, embodiments of the present invention provide a control method for a large-aperture dual-channel resolver transmitter, which solves the problem that the speed control of existing large-aperture dual-channel resolver transmitters relies heavily on manual operation and experience, making it difficult to achieve precise speed control in a short time. The present invention can provide operators with the current angle value of the continuously variable transmission knob that needs adjustment in real time, and automatically adjust the control when the output speed is below the target.

[0005] In a first aspect, embodiments of the present invention provide a control method for a large-aperture dual-channel resolver transmitter, comprising the following steps:

[0006] The required input voltage for the resolver is determined based on the target rotational speed to be achieved by the large-aperture dual-channel resolver.

[0007] Based on the required input voltage, calculate the required rotation angle of the continuously variable transmission knob on the resolver; the continuously variable transmission knob is used to change the number of output enameled wire turns of the transformer at the voltage input terminal of the resolver by rotating the knob through an arc length;

[0008] Obtain the actual rotation angle of the continuously variable transmission knob;

[0009] The output winding length of the transformer is automatically adjusted according to the required rotation angle and the actual rotation angle of the continuously variable transmission knob, so that the resolver transmitter outputs the target speed.

[0010] In an alternative embodiment, the required input voltage for the resolver transmitter is calculated according to the following first formula:

[0011]

[0012] Wherein, U represents the input voltage required by the resolver transmitter, N represents the number of turns of enameled wire inside the resolver transmitter, K represents the preset constant coefficient, P represents the number of pole pairs of the resolver transmitter, v represents the target rotational speed, and φ represents the magnetic flux of the constant magnetic field inside the resolver transmitter.

[0013] In one optional embodiment, the preset constant coefficient is set to 1.1-1.25.

[0014] In an alternative embodiment, the required rotation angle of the continuously variable transmission knob on the resolver transmitter is calculated according to the following second formula:

[0015]

[0016] Where θ represents the required rotation angle of the continuously variable transmission knob on the resolver transmitter, U max n represents the actual input voltage value at the input terminal of the resolver transmitter. max L represents the number of turns of the input enameled wire of the transformer, L represents the vertical distance between two adjacent turns of enameled wire of the transformer, and R represents the rotation radius of the continuously variable transmission knob.

[0017] In an optional embodiment, the automatic adjustment of the winding length at the transformer output terminal based on the required rotation angle and the actual rotation angle of the continuously variable transmission knob includes:

[0018] The adjustment value for the number of output enameled wire turns of the transformer is calculated according to the third formula;

[0019] The number of output enameled wire turns of the transformer is automatically adjusted according to the adjustment value.

[0020] The third formula is as follows:

[0021]

[0022] In the third formula, Δn represents the adjustment value of the number of turns of the output enameled wire of the transformer; θ0 represents the actual rotation angle of the continuously variable transmission knob; and the adjustment ratio of the arc length of the continuously variable transmission knob to the number of turns of the output enameled wire of the transformer is 1:1.

[0023] Secondly, embodiments of the present invention provide a control system for a large-aperture dual-channel resolver transmitter, comprising:

[0024] A continuously variable speed knob is installed on a large-aperture dual-channel resolver transmitter and is used to change the number of turns of the output enameled wire of the transformer at the voltage input terminal of the resolver transmitter by rotating the knob through an arc length.

[0025] The voltage calculation module is used to determine the input voltage required by the resolver transmitter based on the target rotational speed to be achieved by the resolver transmitter.

[0026] A rotation angle calculation module, connected to the voltage calculation module, is used to calculate the required rotation angle of the continuously variable transmission knob based on the input voltage required by the resolver transmitter.

[0027] The data acquisition module is used to obtain the actual rotation angle of the continuously variable transmission knob;

[0028] The adjustment module, connected to the rotation angle calculation module and the acquisition module, is used to automatically adjust the output winding length of the transformer according to the required rotation angle and the actual rotation angle of the continuously variable knob, so that the resolver transmitter outputs the target speed.

[0029] In an optional embodiment, the voltage calculation module is specifically used to calculate the input voltage required by the resolver transmitter according to the following first formula:

[0030]

[0031] Wherein, U represents the input voltage required by the resolver transmitter, N represents the number of turns of enameled wire inside the resolver transmitter, K represents the preset constant coefficient, P represents the number of pole pairs of the resolver transmitter, v represents the target rotational speed, and φ represents the magnetic flux of the constant magnetic field inside the resolver transmitter.

[0032] In an optional embodiment, the rotation angle calculation module is specifically used to calculate the required rotation angle of the continuously variable transmission knob on the resolver according to the following second formula:

[0033]

[0034] Where θ represents the required rotation angle of the continuously variable transmission knob on the resolver transmitter, U max n represents the actual input voltage value at the input terminal of the resolver transmitter. max L represents the number of turns of the input enameled wire of the transformer, L represents the vertical distance between two adjacent turns of enameled wire of the transformer, and R represents the rotation radius of the continuously variable transmission knob.

[0035] In an optional embodiment, the adjustment module is specifically used to calculate the adjustment value of the number of output enameled wire turns of the transformer according to the third formula, and automatically adjust the number of output enameled wire turns of the transformer according to the adjustment value;

[0036] The third formula is as follows:

[0037]

[0038] In the third formula, Δn represents the adjustment value of the number of turns of the output enameled wire of the transformer; θ0 represents the actual rotation angle of the continuously variable transmission knob; and the adjustment ratio of the arc length of the continuously variable transmission knob to the number of turns of the output enameled wire of the transformer is 1:1.

[0039] This invention provides a control method and system for a large-aperture dual-channel resolver transmitter. By adding a continuously variable speed (CVT) knob to the resolver transmitter, rotating the knob changes the number of turns of the output enameled wire of the transformer at the input voltage terminal of the resolver transmitter, thereby changing the input voltage of the dual-channel resolver transmitter and consequently its rotational speed. Furthermore, to achieve precise rotational speed, the required input voltage for the dual-channel resolver transmitter is calculated based on the desired rotational speed, thus determining the required rotation angle of the CVT knob. This information can be provided to the operator, improving system efficiency. Then, using the actual rotation angle, the number of turns of the enameled wire at the transformer output terminal is automatically adjusted, automatically eliminating manual operation errors and improving the reliability and accuracy of resolver transmitter control. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 A flowchart illustrating a control method for a large-aperture dual-channel resolver transmitter provided in an embodiment of the present invention;

[0042] Figure 2 This is a schematic diagram of the control system structure of a large-aperture dual-channel resolver transmitter provided in an embodiment of the present invention. Detailed Implementation

[0043] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0044] It should be understood that the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0045] Figure 1 A flowchart illustrating a control method for a large-aperture dual-channel resolver transmitter provided in an embodiment of the present invention. See also... Figure 1 The method includes the following steps S101-S104:

[0046] S101: Determine the input voltage required by the resolver transmitter based on the target rotational speed required to be achieved by the large-aperture dual-channel resolver transmitter.

[0047] In an alternative embodiment, the input voltage required for the resolver transmitter is calculated according to the following first formula (1):

[0048]

[0049] In the first formula (1), U represents the input voltage required by the resolver transmitter, N represents the number of turns of enameled wire inside the resolver transmitter, K represents the preset constant coefficient, P represents the number of pole pairs of the resolver transmitter, v represents the target rotational speed, and φ represents the magnetic flux of the constant magnetic field inside the resolver transmitter.

[0050] Preferably, the preset constant coefficient K is set to a value of 1.1-1.25.

[0051] S102: Calculate the required rotation angle of the continuously variable transmission knob on the resolver based on the required input voltage.

[0052] A continuously variable speed (CVT) knob is pre-installed on the resolver transmitter. This CVT knob is used to change the number of turns of the output enameled wire of the transformer at the resolver transmitter's voltage input terminal by rotating the knob through an arc length. Preferably, the adjustment ratio between the arc length of the CVT knob and the number of turns of the output enameled wire of the transformer is 1:1.

[0053] In an alternative embodiment, the required rotation angle θ of the continuously variable transmission knob for the resolver to output the target rotational speed can be calculated according to the following second formula (2):

[0054]

[0055] Where θ represents the required rotation angle of the continuously variable transmission knob on the resolver transmitter, U max n represents the actual input voltage value at the input terminal of the resolver transmitter. maxL represents the number of turns of the input enameled wire of the transformer, L represents the vertical distance between two adjacent turns of enameled wire of the transformer, and R represents the rotation radius of the continuously variable transmission knob.

[0056] In this embodiment, the required rotation angle of the continuously variable transmission knob on the resolver is calculated and provided to the operator. The operator can then directly rotate the continuously variable transmission knob according to the required rotation angle. This method directly provides the required adjustment parameters and does not require any relevant experience from the operator.

[0057] S103: Obtain the actual rotation angle of the continuously variable transmission knob.

[0058] S104: The output winding length of the transformer is automatically adjusted according to the required rotation angle and the actual rotation angle of the continuously variable transmission knob, so that the resolver transmitter outputs the target speed.

[0059] In this embodiment, since there will be rotational errors when the operator rotates the continuously variable speed knob, and 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 can be calculated based on the actual rotation angle of the operator and the required rotation angle.

[0060] In an alternative embodiment, the adjustment value of the number of output enameled wire turns of the transformer can be calculated according to the third formula (3), and then the number of output enameled wire turns of the transformer can be automatically adjusted according to the adjustment value.

[0061] The third formula is as follows:

[0062]

[0063] In the third formula (3), Δn represents the adjustment value of the number of turns of the output enameled wire of the transformer; θ0 represents the actual rotation angle of the continuously variable speed knob; in this embodiment, the arc length of the continuously variable speed knob and the adjustment ratio of the number of turns of the output enameled wire of the transformer are 1:1.

[0064] The control method for a large-aperture dual-channel resolver provided by this invention adds a continuously variable speed (CVT) knob to the resolver. By rotating the knob, the number of turns of the output enameled wire of the transformer at the input voltage terminal of the resolver can be changed, thereby changing the input voltage of the dual-channel resolver and thus its rotational speed. Furthermore, to achieve a precise rotational speed, the required input voltage for the dual-channel resolver is calculated based on the desired rotational speed, which in turn determines the required rotation angle of the CVT knob. This angle can be communicated to the operator, improving system efficiency. Then, using the actual rotation angle, the number of turns of the enameled wire at the transformer output terminal is automatically adjusted, automatically eliminating manual operation errors and improving the reliability and accuracy of resolver control.

[0065] Corresponding to the control method for the large-aperture dual-channel resolver transmitter provided in the embodiments of the present invention, the embodiments of the present invention also provide a control system for the large-aperture dual-channel resolver transmitter, such as... Figure 2 As shown, the system includes:

[0066] A continuously variable speed knob 11 is installed on a large-aperture dual-channel resolver transmitter and is used to change the number of turns of the output enameled wire of the transformer at the voltage input terminal of the resolver transmitter by rotating the knob through an arc length.

[0067] The voltage calculation module 12 is used to determine the input voltage required by the resolver transmitter based on the target rotational speed to be achieved by the resolver transmitter. Preferably, the voltage calculation module 12 can calculate the input voltage required by the resolver transmitter according to the first formula (1) above.

[0068] The rotation angle calculation module 13, connected to the voltage calculation module 12, is used to calculate the required rotation angle of the continuously variable transmission knob based on the input voltage required by the resolver transmitter calculated by the voltage calculation module 12. Preferably, the rotation angle calculation module 13 can calculate the required rotation angle of the continuously variable transmission knob according to the second formula (2) above.

[0069] The acquisition module 14 is used to acquire the actual rotation angle of the continuously variable transmission knob.

[0070] The adjustment module 15, connected to the rotation angle calculation module 13 and the acquisition module 14, is used to automatically adjust the output winding length of the transformer according to the required rotation angle and the actual rotation angle of the continuously variable transmission knob, so that the resolver transmitter outputs the target speed. Preferably, the adjustment module 15 can calculate the adjustment value of the number of output enameled wire turns of the transformer according to the third formula (3) above, and automatically adjust the number of output enameled wire turns of the transformer according to the calculated adjustment value.

[0071] The embodiment described herein can be used for execution. Figure 1 The technical solutions of the method embodiments shown are similar in principle and in effect, and will not be described again here.

[0072] This 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 block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can 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, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0073] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0074] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0075] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims and their equivalents, this invention also intends to include these modifications and variations. The above descriptions are merely specific embodiments of this invention, but the scope of protection of this invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this invention should be included within the scope of protection of this invention. Therefore, the scope of protection of this invention should be determined by the scope of the claims.

Claims

1. A control method of a large-aperture dual-channel rotary transformer transmitter, characterized by, The method comprises the following steps: According to the target speed required to be reached by the large-aperture double-channel rotary transmitter, the input voltage required by the rotary transmitter is determined; According to the required input voltage, the required rotation angle of the stepless speed regulation knob on the rotary transmitter is calculated; the stepless speed regulation knob is used to change the output enameled wire turns of the voltage input end transformer of the rotary transmitter through the arc length of the knob rotation; The actual rotation angle of the stepless speed regulation knob is obtained; According to the required rotation angle and the actual rotation angle of the stepless speed regulation knob, the output winding length of the transformer is automatically adjusted to make the rotary transmitter output the target speed.

2. The control method of a large-aperture dual-channel rotary transducer transmitter as claimed in claim 1, characterized in that, The input voltage required by the rotary transmitter is calculated according to the following first formula: wherein U represents an input voltage required by the rotary transformer transmitter, represents the number of turns of the enameled wire inside the rotary transformer transmitter, represents a preset constant coefficient, represents the number of pole pairs of the rotary transformer transmitter, represents the target rotational speed, represents the magnetic flux of the fixed magnetic field inside the rotary transformer transmitter.

3. The control method of a wide lane dual channel rotary transducer transmitter as claimed in claim 2, wherein, The preset constant coefficient is 1.1-1.

25.

4. The control method of a wide path dual channel rotary transducer transmitter as claimed in claim 2, wherein, The required rotation angle of the stepless speed regulation knob on the rotary transmitter is calculated according to the following second formula: wherein, represents the required rotation angle of the infinitely variable knob on the rotary variator transmitter, represents the actual input voltage value at the input of the rotary variator transmitter, represents the input number of turns of the enameled wire of the transformer, represents the vertical distance between the two adjacent turns of the enameled wire of the transformer, represents the radius of rotation of the infinitely variable knob.

5. The control method of the wide path dual channel rotary transducer transmitter as claimed in claim 4, wherein, According to the required rotation angle and the actual rotation angle of the stepless speed regulation knob, the output winding length of the transformer is automatically adjusted, which comprises: The adjustment value of the output enameled wire turns of the transformer is calculated according to the third formula; The output enameled wire turns of the transformer are automatically adjusted according to the adjustment value; The third formula is: the third formula, represents an adjustment value of the output enameled wire turn number of the transformer; represents an actual rotation angle of the continuously variable shift knob; an arc length of the continuously variable shift knob and an adjustment proportion of the output enameled wire turn number of the transformer are 1:

1.

6. A control system for a large-aperture dual-channel resolver transmitter, characterized in that, It comprises: A stepless speed regulation knob is arranged on the large-aperture double-channel rotary transmitter, which is used to change the output enameled wire turns of the voltage input end transformer of the rotary transmitter through the arc length of the knob rotation; A voltage calculation module is used to determine the input voltage required by the rotary transmitter according to the target speed required to be reached by the rotary transmitter; A rotation angle calculation module is connected with the voltage calculation module and is used to calculate the required rotation angle of the stepless speed regulation knob according to the input voltage required by the rotary transmitter; A collection module is used to obtain the actual rotation angle of the stepless speed regulation knob; An adjustment module is connected with the rotation angle calculation module and the collection module and is used to automatically adjust the output winding length of the transformer according to the required rotation angle and the actual rotation angle of the stepless speed regulation knob, so that the rotary transmitter outputs the target speed.

7. The control system for a wide-lane dual-channel rotary transducer transmitter of claim 6, wherein, The voltage calculation module is specifically used to calculate the input voltage required by the rotary transmitter according to the following first formula: wherein U represents the input voltage required by the resolver transmitter, represents the number of turns of the enameled wire inside the resolver transmitter, represents a preset constant coefficient, represents the number of pole pairs of the resolver transmitter, represents the target rotational speed, represents the magnetic flux of the permanent magnet field inside the resolver transmitter.

8. The control system for a wide-lane dual-channel rotary transducer transmitter of claim 6, wherein, The rotation angle calculation module is specifically used to calculate the required rotation angle of the stepless speed regulation knob on the rotary transmitter according to the following second formula: wherein, represents the required rotation angle of the infinitely variable knob on the rotary variator transmitter, represents the actual input voltage value at the input of the rotary variator transmitter, represents the input number of turns of the enameled wire of the transformer, represents the vertical distance between two adjacent turns of the enameled wire of the transformer, represents the radius of rotation of the infinitely variable knob.

9. The control system for a wide-lane dual-channel rotary transducer transmitter of claim 8, wherein, The adjustment module is specifically used to calculate the adjustment value of the output enameled wire turns of the transformer according to the third formula and automatically adjust the output enameled wire turns of the transformer according to the adjustment value; The third formula is: the third formula, represents an adjustment value of the output enameled wire turn number of the transformer; represents an actual rotation angle of the continuously variable shift knob; the arc length of the continuously variable shift knob and the adjustment proportion of the output enameled wire turn number of the transformer are 1:1.

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