Modeling method and equipment for control model of dual-rotor dual-stator permanent magnet wind turbine generator

Abstract

The present invention proposes a control modeling method and device for a dual-rotor dual-stator permanent magnet wind turbine. The method establishes a joint state-space equation group based on the magnetic field coupling between the inner and outer motors of the dual-rotor dual-stator permanent magnet wind turbine, specifically including the voltage equation and the flux equation of the motor. By describing the electromagnetic parameters and motion parameter states of the dual-rotor dual-stator permanent magnet wind turbine in a two-phase stationary αβ coordinate system and a two-phase rotating dq coordinate system, a theoretical basis is provided for electromagnetic transient simulation and joint control system algorithm research of the dual-rotor dual-stator permanent magnet wind turbine.

Description

Technical Field

[0001] The present invention relates to the field of generator control technology, and in particular to a method, device, equipment and storage medium for modeling a control model of a dual-rotor dual-stator permanent magnet wind turbine generator. Background Art

[0002] The next few years will be a critical period for innovation and transformation in my country's offshore wind power technology. Larger and more customized offshore wind turbines will become an inevitable trend. Because traditional single-rotor wind turbines are limited by their structural limitations, increasing the rotor radius has reached a technical bottleneck, necessitating the exploration and research of new wind power generation methods.

[0003] The dual-rotor dual-stator permanent magnet synchronous generator is a new type of permanent magnet synchronous motor for wind power generation. Its dual-port output structure can effectively improve the efficiency of the wind turbine. It has the advantages of proper energy distribution, cascade utilization, and low cost, and can significantly improve the comprehensive utilization rate.

[0004] The dual-rotor dual-stator permanent magnet synchronous generator can be regarded as a structure in which an inner motor and an outer motor are nested. When considering the interaction between the internal and external magnetic fields, there will be magnetic circuit coupling between the magnetic fields of the inner and outer motors. Therefore, it is necessary to construct a coupled mathematical model for the dual-rotor dual-stator permanent magnet synchronous generator. Summary of the Invention

[0005] The present invention provides a control model modeling method, device, equipment and storage medium for a dual-rotor dual-stator permanent magnet wind turbine generator, aiming to construct mathematical models of inner and outer motors in a two-phase stationary coordinate system and a two-phase rotating coordinate system, and obtain an overall dual-rotor dual-stator permanent magnet wind turbine generator coupled mathematical model.

[0006] To this end, the purpose of the present invention is to propose a control modeling method for a dual-rotor dual-stator permanent magnet wind turbine generator, comprising:

[0007] The stator three-phase winding of the inner motor is regarded as a stationary coordinate reference system. Since the inner and outer motors have different rotation speeds, the stator three-phase winding of the outer motor is regarded as rotating relative to the stationary coordinate reference system.

[0008] Perform a 3 / 2 transformation on the three-phase stator windings of the inner motor and the three-phase stator windings of the outer motor, respectively. Assuming that the two-phase orthogonal coordinate system of the inner motor is stationary after the transformation, which is recorded as the αβ coordinate system, the two-phase stator coordinates of the outer motor rotate at a preset angular velocity relative to the αβ coordinate system, which is recorded as the α'β' coordinate system.

[0009] The simultaneous voltage equations and flux equations of the double-rotor double-stator permanent magnet wind turbine generator with the inner motor in the αβ coordinate system and the outer motor in the α'β' coordinate system are obtained;

[0010] The α'β' coordinate system is rotated to align with the αβ coordinate system, and the simultaneous voltage equations and flux equations of the dual-rotor dual-stator permanent magnet wind turbine generator in the unified αβ coordinate system after transformation are obtained;

[0011] The two-phase stationary αβ coordinate system is rotated to obtain a two-phase rotating coordinate system, which is recorded as the dq coordinate system. The simultaneous voltage equations and flux equations of the dual-rotor dual-stator permanent magnet wind turbine generator in the unified dq coordinate system after transformation are obtained.

[0012] Among them, the simultaneous voltage equations of the dual-rotor dual-stator permanent magnet wind turbine generator with the inner motor in the αβ coordinate system and the outer motor in the α'β' coordinate system are:

[0013]

[0014] Where R i 、R o are the resistances of the inner and outer motor stator windings respectively, and p is the differential operator.

[0015] Among them, the simultaneous flux equations of the dual-rotor dual-stator permanent magnet wind turbine generator with the inner motor in the αβ coordinate system and the outer motor in the α'β' coordinate system are:

[0016]

[0017] Where, L ii 、L oo are the equivalent two-phase winding self-inductance of the inner and outer motor stators, M io 、M io are the mutual inductance of the inner and outer motor coaxial equivalent windings, ψ if , ψ of are respectively the permanent magnet flux of the inner and outer motors, θ ie ,θ oe are the inner and outer motor rotor position angles (electrical angles), Δθ=θ oe -θ ie .

[0018] Among them, the simultaneous voltage equations of the dual-rotor dual-stator permanent magnet wind turbine generator in the unified αβ coordinate system after transformation are:

[0019]

[0020] Where Δω is the difference between the internal and external motor rotational electrical angular velocities, i.e. Δω=ω oe -ω ie ω ie 、ω oe are the electrical angular velocities of the inner and outer motor rotors respectively.

[0021] Among them, the simultaneous flux equations of the dual-rotor dual-stator permanent magnet wind turbine generator in the unified αβ coordinate system after transformation are:

[0022]

[0023] Among them, the simultaneous voltage equations of the dual-rotor dual-stator permanent magnet wind turbine generator in the unified dq coordinate system after transformation are:

[0024]

[0025] Among them, the simultaneous flux equations of the dual-rotor dual-stator permanent magnet wind turbine generator in the unified dq coordinate system after transformation are:

[0026]

[0027] In addition, the present invention also aims to provide a control model modeling device for a dual-rotor dual-stator permanent magnet wind turbine generator, comprising:

[0028] A reference frame setting module is used to use the stator three-phase winding of the inner motor as a stationary coordinate reference frame. Since the inner and outer motors have different rotation speeds, the stator three-phase winding of the outer motor is regarded as rotating relative to the stationary coordinate reference frame;

[0029] A coordinate conversion module is used to perform a 3 / 2 transformation on the three-phase stator windings of the inner motor and the three-phase stator windings of the outer motor, respectively. Assuming that the two-phase orthogonal coordinate system of the inner motor is stationary after the transformation, which is recorded as the αβ coordinate system, the two-phase stator coordinates of the outer motor rotate at a preset angular velocity relative to the αβ coordinate system, which is recorded as the α'β' coordinate system;

[0030] The first equation building module is used to obtain the simultaneous voltage equations and flux equations of the double-rotor double-stator permanent magnet wind turbine generator for the inner motor in the αβ coordinate system and the outer motor in the α'β' coordinate system;

[0031] The second equation building module is used to rotate the α'β' coordinate system to align it with the αβ coordinate system, and obtain the simultaneous voltage equations and flux equations of the dual-rotor dual-stator permanent magnet wind turbine in the unified αβ coordinate system after transformation;

[0032] The third equation construction module is used to rotate the two-phase stationary αβ coordinate system to obtain a two-phase rotating coordinate system, which is recorded as the dq coordinate system, and obtain the simultaneous voltage equations and magnetic flux equations of the dual-rotor dual-stator permanent magnet wind turbine generator in the unified dq coordinate system after transformation.

[0033] The present invention also aims to provide a computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the method of any one of the aforementioned technical solutions is implemented.

[0034] Another object of the present invention is to provide a non-temporary computer-readable storage medium having a computer program stored thereon, which implements the method of the aforementioned technical solution when the computer program is executed by a processor.

[0035] Different from the existing technology, the control model modeling method of the dual-rotor dual-stator permanent magnet wind turbine provided by the present invention establishes a joint state space equation group based on the magnetic field coupling between the inner and outer motors of the dual-rotor dual-stator permanent magnet wind turbine, specifically including the voltage equation and the magnetic flux equation of the motor. By describing the electromagnetic parameters and motion parameter states of the dual-rotor dual-stator permanent magnet wind turbine in the two-phase stationary αβ coordinate system and the two-phase rotating dq coordinate system, a theoretical basis is provided for the electromagnetic transient simulation and joint control system algorithm research of the dual-rotor dual-stator permanent magnet wind turbine. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0037] Figure 1 The present invention provides a flow chart of a method for modeling a control model of a dual-rotor dual-stator permanent magnet wind turbine generator.

[0038] Figure 2 It is a schematic diagram of a three-phase stationary coordinate system of a dual-rotor dual-stator permanent magnet synchronous generator in a control model modeling method of a dual-rotor dual-stator permanent magnet wind turbine generator provided by the present invention.

[0039] Figure 3 It is a schematic diagram of a two-phase stationary coordinate system of a dual-rotor dual-stator permanent magnet synchronous generator in a control model modeling method of a dual-rotor dual-stator permanent magnet wind turbine generator provided by the present invention.

[0040] Figure 4 It is a schematic diagram of a two-phase rotating coordinate system of a dual-rotor dual-stator permanent magnet synchronous generator in a control model modeling method of a dual-rotor dual-stator permanent magnet wind turbine generator provided by the present invention.

[0041] Figure 5 It is a structural schematic diagram of a control model modeling device of a dual-rotor dual-stator permanent magnet wind turbine provided by the present invention.

[0042] Figure 6 It is a structural schematic diagram of a non-transitory computer-readable storage medium storing computer instructions provided by the present invention. DETAILED DESCRIPTION

[0043] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, but are not to be construed as limiting the present invention.

[0044] A control modeling method for a dual-rotor dual-stator permanent magnet wind turbine generator according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0045] Figure 1 This is a flow chart of a method for modeling a control model of a dual-rotor dual-stator permanent magnet wind turbine generator provided by an embodiment of the present invention. The implementation steps of this method are as follows:

[0046] Step 110: The stator three-phase winding of the inner motor is used as a stationary coordinate reference system. Since the inner and outer motors have different rotation speeds, the stator three-phase winding of the outer motor is regarded as rotating relative to the stationary coordinate reference system.

[0047] like Figure 2 As shown, the three-phase stationary coordinate system of the dual-rotor dual-stator permanent magnet synchronous generator in the present invention is given. Figure 2 The stator three-phase windings of the outer motor rotate counterclockwise by an angle Δθ relative to the stator three-phase windings of the inner motor.

[0048] Step 120: Perform a 3 / 2 transformation on the three-phase stator winding of the inner motor and the three-phase stator winding of the outer motor respectively. Assuming that the two-phase orthogonal coordinate system of the inner motor is stationary after the transformation, which is recorded as the αβ coordinate system, then the two-phase stator coordinates of the outer motor rotate at a preset angular velocity relative to the αβ coordinate system, which is recorded as the α'β' coordinate system.

[0049] The two-phase stationary coordinate system of the dual-rotor dual-stator permanent magnet synchronous generator is as follows Figure 3 As shown, Figure 3 The stator three-phase windings of the outer motor rotate counterclockwise by an angle Δθ relative to the stator three-phase windings of the inner motor.

[0050] Step 130: Obtain the simultaneous voltage equations and flux equations of the dual-rotor dual-stator permanent magnet wind turbine generator for the inner motor in the αβ coordinate system and the outer motor in the α'β' coordinate system.

[0051] The simultaneous voltage equations of the dual-rotor dual-stator permanent magnet wind turbine generator with the inner motor in the αβ coordinate system and the outer motor in the α'β' coordinate system are:

[0052]

[0053] Where R i 、R o are the resistances of the inner and outer motor stator windings respectively, and p is the differential operator.

[0054] Among them, the simultaneous flux equations of the dual-rotor dual-stator permanent magnet wind turbine generator with the inner motor in the αβ coordinate system and the outer motor in the α'β' coordinate system are:

[0055]

[0056] Where, L ii , L oo are the equivalent two-phase winding self-inductance of the inner and outer motor stators, M io 、M io are the mutual inductance of the inner and outer motor coaxial equivalent windings, ψ if , ψ of are the permanent magnet flux of the inner and outer motors, θ ie ,θ oe are the inner and outer motor rotor position angles (electrical angles), Δθ=θ oe -θ ie .

[0057] Step 140: Rotate the α'β' coordinate system to align it with the αβ coordinate system, and obtain the simultaneous voltage equations and flux equations of the dual-rotor dual-stator permanent magnet wind turbine generator in the unified αβ coordinate system after transformation.

[0058] The two-phase rotating coordinate system of the dual-rotor dual-stator permanent magnet synchronous generator is as follows Figure 4 As shown. After transformation, the voltage equations of the dual-rotor dual-stator permanent magnet wind turbine generator in the unified αβ coordinate system are:

[0059]

[0060] Where Δω is the difference between the internal and external motor rotational electrical angular velocities, i.e. Δω=ω oe -ω ie ω ie 、ω oe are the electrical angular velocities of the inner and outer motor rotors respectively.

[0061] After transformation, the simultaneous flux equations of the dual-rotor dual-stator permanent magnet wind turbine in the unified αβ coordinate system are:

[0062]

[0063] S150: Rotate the two-phase stationary αβ coordinate system to obtain a two-phase rotating coordinate system, recorded as the dq coordinate system, and obtain the simultaneous voltage equations and flux equations of the dual-rotor dual-stator permanent magnet wind turbine generator in the unified dq coordinate system after transformation.

[0064] After transformation, the voltage equations of the dual-rotor dual-stator permanent magnet wind turbine generator in the unified dq coordinate system are:

[0065]

[0066] After transformation, the simultaneous flux equations of the dual-rotor dual-stator permanent magnet wind turbine in the unified dq coordinate system are:

[0067]

[0068] like Figure 5 As shown, the present invention also provides a dual-rotor dual-stator permanent magnet wind turbine control model modeling device 300, comprising:

[0069] A reference frame setting module 310 is configured to use the stator three-phase winding of the inner motor as a stationary coordinate reference frame. Since the inner and outer motors have different rotation speeds, the stator three-phase winding of the outer motor is considered to rotate relative to the stationary coordinate reference frame.

[0070] A coordinate transformation module 320 is configured to perform a 3 / 2 transformation on the three-phase stator windings of the inner motor and the three-phase stator windings of the outer motor, respectively. Assuming that the two-phase orthogonal coordinate system of the inner motor is stationary after the transformation, which is denoted as the αβ coordinate system, the two-phase stator coordinates of the outer motor rotate at a preset angular velocity relative to the αβ coordinate system, which is denoted as the α'β' coordinate system.

[0071] The first equation building module 330 is used to obtain the simultaneous voltage equations and flux equations of the dual-rotor dual-stator permanent magnet wind turbine generator for the inner motor in the αβ coordinate system and the outer motor in the α'β' coordinate system;

[0072] The second equation construction module 340 is used to rotate the α'β' coordinate system to align it with the αβ coordinate system, and obtain the simultaneous voltage equations and flux equations of the dual-rotor dual-stator permanent magnet wind turbine generator in the unified αβ coordinate system after the transformation;

[0073] The third equation construction module 350 is used to rotate the two-phase static αβ coordinate system to obtain a two-phase rotating coordinate system, recorded as the dq coordinate system, and obtain the simultaneous voltage equations and flux equations of the dual-rotor dual-stator permanent magnet wind turbine in the unified dq coordinate system after transformation.

[0074] In order to implement the embodiment, the present invention also proposes an electronic device, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute each step of the coal-fired power plant mill lubricating oil system pressure early warning method of the aforementioned technical solution.

[0075] like Figure 6As shown, the non-transitory computer-readable storage medium includes a memory 810 of instructions and an interface 830. The instructions can be executed by a processor 820 based on the pressure warning of the coal mill lubricating oil system of the coal-fired power plant to complete the method. Alternatively, the storage medium can be a non-transitory computer-readable storage medium, for example, a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0076] In order to implement the embodiment, the present invention also proposes a non-transitory computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, it realizes the coal-fired power plant mill lubricating oil system pressure warning as in the embodiment of the present invention.

[0077] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0078] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0079] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present invention includes alternative implementations in which functions may be performed out of the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present invention pertain.

[0080] The logic and / or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing the logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (e.g., a computer-based system, a system including a processor, or other system that can fetch and execute instructions from an instruction execution system, apparatus, or device). For purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include the following: an electrical connection with one or more wires (electronic devices), a portable computer disk cartridge (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and programmable read-only memory (EPROM or flash memory), fiber optic devices, and a portable compact disc read-only memory (CDROM). Furthermore, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing it in another suitable manner if necessary, and then storing it in a computer memory.

[0081] It should be understood that various parts of the present invention can be implemented using hardware, software, firmware, or a combination thereof. In the above-described embodiments, multiple steps or methods can be implemented using software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented using hardware, as in another embodiment, any one of the following technologies known in the art or a combination thereof can be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application-specific integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0082] Those skilled in the art will understand that all or part of the steps in the method of the above embodiment can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium. When the program is executed, it includes one or a combination of the steps of the method embodiment.

[0083] In addition, the functional units in the various embodiments of the present invention may be integrated into a single processing module, or each unit may exist physically separately, or two or more units may be integrated into a single module. The aforementioned integrated modules may be implemented in the form of hardware or in the form of software functional modules. If the integrated modules are implemented in the form of software functional modules and sold or used as independent products, they may also be stored in a computer-readable storage medium.

[0084] The storage medium mentioned above may be a read-only memory, a magnetic disk, or an optical disk, etc. Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and are not to be construed as limiting the present invention. Persons skilled in the art may make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A modeling method for a coupled mathematical model of a dual-rotor dual-stator permanent magnet wind turbine generator, characterized in that: include: The stator three-phase winding of the inner motor is regarded as a stationary coordinate reference system. Since the inner and outer motors have different rotation speeds, the stator three-phase winding of the outer motor is regarded as rotating relative to the stationary coordinate reference system. Perform 3 / 2 transformation on the stator three-phase winding of the inner motor and the stator three-phase winding of the outer motor respectively. Assuming that the two-phase orthogonal coordinate system of the stator of the inner motor is stationary after the transformation, it is recorded as αβ Coordinate system, the two-phase coordinates of the stator of the external motor are relative to the α β The coordinate system rotates at a preset angular velocity, denoted as α'β' Coordinate system; get αβ Internal motor and α'β' The simultaneous voltage equations and flux equations of a dual-rotor dual-stator permanent magnet wind turbine generator with an external motor in the coordinate system; Will α'β' The coordinate system is rotated so that it is aligned with αβ Coordinate systems are aligned and unified after transformation αβ The simultaneous voltage equations and flux equations of a dual-rotor dual-stator permanent magnet wind turbine generator in the coordinate system; Stabilize the two phases αβ The coordinate system is rotated to obtain a two-phase rotating coordinate system, which is recorded as dq Coordinate system, unified after transformation dq The simultaneous voltage equations and flux equations of a dual-rotor dual-stator permanent magnet wind turbine generator in the coordinate system.

2. The modeling method of the coupled mathematical model of the dual-rotor dual-stator permanent magnet wind turbine according to claim 1 is characterized in that: αβ Internal motor and α'β' The voltage equations of the dual-rotor dual-stator permanent magnet wind turbine generator with external motor in the coordinate system are: Where, 、 are the inner and outer motor stator winding resistances respectively, p is the differential operator.

3. The modeling method of the coupled mathematical model of the dual-rotor dual-stator permanent magnet wind turbine according to claim 2 is characterized in that: αβ Internal motor and α'β' The simultaneous flux equations of the dual-rotor dual-stator permanent magnet wind turbine generator with external motor in the coordinate system are: Where, 、 are the equivalent two-phase winding self-inductance of the inner and outer motor stators, 、 are the mutual inductances of the inner and outer motor coaxial equivalent windings, 、 are the permanent magnet flux linkages of the inner and outer motors respectively, 、 are the rotor position angles of the inner and outer motors respectively, .

4. The modeling method of the coupled mathematical model of the dual-rotor dual-stator permanent magnet wind turbine according to claim 3 is characterized in that: Unified after transformation αβ The simultaneous voltage equations of the dual-rotor dual-stator permanent magnet wind turbine generator in the coordinate system are: Where, is the difference between the electrical angular velocities of the inner and outer motors, that is, , 、 are the electrical angular velocities of the inner and outer motor rotors respectively.

5. The modeling method of the coupled mathematical model of the dual-rotor dual-stator permanent magnet wind turbine according to claim 4 is characterized in that: Unified after transformation αβ The simultaneous flux equations of the dual-rotor dual-stator permanent magnet wind turbine in the coordinate system are:

6. The modeling method of the coupled mathematical model of the dual-rotor dual-stator permanent magnet wind turbine according to claim 3, characterized in that: Unified after transformation dq The simultaneous voltage equations of the dual-rotor dual-stator permanent magnet wind turbine generator in the coordinate system are:

7. The modeling method of the coupled mathematical model of the dual-rotor dual-stator permanent magnet wind turbine according to claim 6, characterized in that: Unified after transformation dq The simultaneous flux equations of the dual-rotor dual-stator permanent magnet wind turbine in the coordinate system are:

8. A control modeling device for a dual-rotor dual-stator permanent magnet wind turbine generator, characterized in that: include: A reference frame setting module is used to use the stator three-phase winding of the inner motor as a stationary coordinate reference frame. Since the inner and outer motors have different rotation speeds, the stator three-phase winding of the outer motor is regarded as rotating relative to the stationary coordinate reference frame; The coordinate transformation module is used to perform 3 / 2 transformation on the stator three-phase winding of the inner motor and the stator three-phase winding of the outer motor respectively. Assuming that the two-phase orthogonal coordinate system of the stator of the inner motor is stationary after the transformation, it is recorded as αβ Coordinate system, the two-phase coordinates of the stator of the external motor are relative to the αβ The coordinate system rotates at a preset angular velocity, denoted as α'β' Coordinate system; The first equation building block is used to obtain αβ Internal motor and α'β' The simultaneous voltage equations and flux equations of a dual-rotor dual-stator permanent magnet wind turbine generator with an external motor in the coordinate system; The second equation building block is used to convert α'β' The coordinate system is rotated so that it is aligned with αβ Coordinate systems are aligned and unified after transformation αβ The simultaneous voltage equations and flux equations of a dual-rotor dual-stator permanent magnet wind turbine generator in the coordinate system; The third equation builds blocks for the two-phase stationary αβ The coordinate system is rotated to obtain a two-phase rotating coordinate system, which is recorded as dq Coordinate system, unified after transformation dq The simultaneous voltage equations and flux equations of a dual-rotor dual-stator permanent magnet wind turbine generator in the coordinate system.

9. A computer device, characterized in that: The method comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the method according to any one of claims 1 to 7 is implemented.

10. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 7 is implemented.

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