Coupling simulation method and device, computer equipment and storage medium

Abstract

The invention relates to a coupling simulation method and device, computer equipment and a storage medium. The method comprises the steps that in the operation process of a simulation electromagnetic opening coil, electromagnetic force borne by a simulation metal firing pin in the simulation electromagnetic opening coil is acquired; according to the electromagnetic force, a simulation spring operating mechanism is operated; in the operation process of the simulation spring operating mechanism, obtaining a contact force between a sub-simulation metal firing pin and a sub-simulation opening latch in the simulation spring operating mechanism; and determining the opening time of the simulation spring operating mechanism according to the electromagnetic force and the contact force. By adopting the method, the mutual influence of the two parts during working can be considered, so that the consistency of the simulation model and the actual situation is ensured, and the simulation credibility is improved.

Description

Technical Field

[0001] The present application relates to the field of simulation technology, and in particular to a coupled simulation method, apparatus, computer equipment, and storage medium. Background Art

[0002] The kinematic characteristics of the spring operating mechanism affect the high-voltage switch's contact motion and switching timing, thus affecting arc formation and arc extinguishing, and ultimately, the arc extinguishing performance. The mechanism's kinematic accuracy affects the high-voltage switch's contact motion position and the synchronization of its switching operations, thus affecting the arc's distribution and uniformity, and ultimately, the arc extinguishing performance. During the actual circuit breaker tripping process, the electromagnetic tripping coil mechanism and the circuit breaker's operating mechanism interact. When the tripping striker in the operating mechanism moves to a certain position and contacts the tripping latch, it generates a corresponding contact force. Under the influence of this contact force, the tripping striker's kinematic characteristics change, generating changes in the electromagnetic force and, in turn, the kinematic characteristics of the operating mechanism.

[0003] Existing simulation technology is usually based on a simulation model that includes the operating mechanism and the electromagnetic coil, and performs coupling simulation between the operating mechanism and the electromagnetic coil. Although this method can complete the coupling between the operating mechanism and the electromagnetic coil, due to the interaction between the operating mechanism and the electromagnetic coil, the coupling simulation results obtained only through the simulation model of the operating mechanism and the electromagnetic coil are inaccurate. Summary of the Invention

[0004] Based on this, it is necessary to provide a coupling simulation method, device, computer equipment and storage medium that can accurately perform coupling simulation to address the above technical problems.

[0005] In a first aspect, the present application provides a coupled simulation method, comprising:

[0006] During the operation of the simulated electromagnetic tripping coil, the electromagnetic force exerted on the simulated metal striker in the simulated electromagnetic tripping coil is obtained;

[0007] According to the electromagnetic force, the simulation spring operating mechanism is operated;

[0008] During the operation of the simulated spring operating mechanism, the contact force between the simulated metal striker and the simulated tripping latch in the simulated spring operating mechanism is obtained;

[0009] Determine the opening time of the simulated spring operating mechanism based on the electromagnetic force and contact force;

[0010] Among them, the simulated spring operating mechanism includes a sub-simulated electromagnetic tripping coil, a sub-simulated tripping latch and a sub-simulated operating rod; the sub-simulated electromagnetic tripping coil includes a sub-simulated metal striker; the simulation structure of the sub-simulated electromagnetic tripping coil is the same as the simulation structure of the simulated electromagnetic tripping coil; during the operation of the simulated spring operating mechanism, after the sub-simulated metal striker is subjected to electromagnetic force, the sub-simulated metal striker collides and contacts with the sub-simulated tripping latch, releasing the mechanical energy in the simulated spring operating mechanism. After the mechanical energy in the simulated spring operating mechanism is released, the simulated operating rod moves to complete the tripping operation.

[0011] In one embodiment, obtaining the electromagnetic force exerted on a simulated metal striker in a simulated electromagnetic tripping coil includes:

[0012] Obtain the magnetic flux generated by the simulated electromagnetic tripping coil during operation;

[0013] The electromagnetic force acting on the simulated metal striker is determined based on the magnetic flux, the preset vacuum permeability, and the cross-sectional area of ​​the air gap.

[0014] In one embodiment, determining the electromagnetic force exerted on the simulated metal striker based on the magnetic flux, the preset vacuum permeability, and the cross-sectional area of ​​the air gap includes:

[0015] The ratio between the magnetic flux and the cross-sectional area of ​​the air gap is used as the magnetic induction intensity of the simulated metal striker in the air gap;

[0016] The electromagnetic force exerted on the simulated metal striker is determined based on the magnetic induction intensity, the preset vacuum magnetic permeability and the air gap cross-sectional area.

[0017] In one embodiment, obtaining the contact force between the sub-simulated metal striker and the sub-simulated tripping pawl in the simulated spring operating mechanism includes:

[0018] Obtaining the penetration depth between the sub-simulated metal striker and the sub-simulated tripping latch;

[0019] The contact force between the sub-simulated metal striker and the sub-simulated tripping latch in the simulated spring operating mechanism is determined according to the penetration depth, the preset contact stiffness coefficient and the preset damping value.

[0020] In one embodiment, determining the contact force between the sub-simulated metal striker and the sub-simulated tripping pawl in the simulated spring operating mechanism based on the penetration depth, the preset contact stiffness coefficient, and the preset damping value includes:

[0021] Determine the initial force between the sub-simulated metal striker and the sub-simulated tripping latch according to the penetration depth and the preset contact stiffness coefficient; the initial force is the theoretical contact force between the sub-simulated metal striker and the sub-simulated tripping latch;

[0022] The sum of the initial force and the preset damping value is used as the contact force between the sub-simulated metal striker and the sub-simulated tripping latch in the simulated spring operating mechanism; the preset damping value is used to adjust the smoothness of the contact force.

[0023] In one embodiment, determining the opening time of the simulated spring operating mechanism based on the electromagnetic force and the contact force includes:

[0024] The difference between the electromagnetic force and the contact force is used as the resultant force transmitted to the simulated spring operating mechanism by the sub-simulated metal striker;

[0025] The opening time of the simulated spring operating mechanism is determined according to the resultant force and the preset mass of the sub-simulated metal striker.

[0026] In a second aspect, the present application further provides a coupling simulation device, comprising:

[0027] The first acquisition module is used to obtain the electromagnetic force exerted on the simulated metal striker in the simulated electromagnetic tripping coil during the operation of the simulated electromagnetic tripping coil;

[0028] A simulation operation module is used to operate a simulated spring operating mechanism according to electromagnetic force;

[0029] The second acquisition module is used to obtain the contact force between the sub-simulated metal striker and the sub-simulated tripping latch in the simulated spring operating mechanism during the operation of the simulated spring operating mechanism;

[0030] A trip determination module, used to determine the trip time of the simulated spring operating mechanism based on the electromagnetic force and contact force;

[0031] Among them, the simulated spring operating mechanism includes a sub-simulated electromagnetic tripping coil, a sub-simulated tripping latch and a sub-simulated operating rod; the sub-simulated electromagnetic tripping coil includes a sub-simulated metal striker; the simulation structure of the sub-simulated electromagnetic tripping coil is the same as the simulation structure of the simulated electromagnetic tripping coil; during the operation of the simulated spring operating mechanism, after the sub-simulated metal striker is subjected to electromagnetic force, the sub-simulated metal striker collides and contacts with the sub-simulated tripping latch, releasing the mechanical energy in the simulated spring operating mechanism. After the mechanical energy in the simulated spring operating mechanism is released, the simulated operating rod moves to complete the tripping operation.

[0032] In a third aspect, the present application further provides a computer device comprising a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the following steps are implemented:

[0033] During the operation of the simulated electromagnetic tripping coil, the electromagnetic force exerted on the simulated metal striker in the simulated electromagnetic tripping coil is obtained;

[0034] According to the electromagnetic force, the simulation spring operating mechanism is operated;

[0035] During the operation of the simulated spring operating mechanism, the contact force between the simulated metal striker and the simulated tripping latch in the simulated spring operating mechanism is obtained;

[0036] Determine the opening time of the simulated spring operating mechanism based on the electromagnetic force and contact force;

[0037] Among them, the simulated spring operating mechanism includes a sub-simulated electromagnetic tripping coil, a sub-simulated tripping latch and a sub-simulated operating rod; the sub-simulated electromagnetic tripping coil includes a sub-simulated metal striker; the simulation structure of the sub-simulated electromagnetic tripping coil is the same as the simulation structure of the simulated electromagnetic tripping coil; during the operation of the simulated spring operating mechanism, after the sub-simulated metal striker is subjected to electromagnetic force, the sub-simulated metal striker collides and contacts with the sub-simulated tripping latch, releasing the mechanical energy in the simulated spring operating mechanism. After the mechanical energy in the simulated spring operating mechanism is released, the simulated operating rod moves to complete the tripping operation.

[0038] In a fourth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the following steps are implemented:

[0039] During the operation of the simulated electromagnetic tripping coil, the electromagnetic force exerted on the simulated metal striker in the simulated electromagnetic tripping coil is obtained;

[0040] According to the electromagnetic force, the simulation spring operating mechanism is operated;

[0041] During the operation of the simulated spring operating mechanism, the contact force between the simulated metal striker and the simulated tripping latch in the simulated spring operating mechanism is obtained;

[0042] Determine the opening time of the simulated spring operating mechanism based on the electromagnetic force and contact force;

[0043] Among them, the simulated spring operating mechanism includes a sub-simulated electromagnetic tripping coil, a sub-simulated tripping latch and a sub-simulated operating rod; the sub-simulated electromagnetic tripping coil includes a sub-simulated metal striker; the simulation structure of the sub-simulated electromagnetic tripping coil is the same as the simulation structure of the simulated electromagnetic tripping coil; during the operation of the simulated spring operating mechanism, after the sub-simulated metal striker is subjected to electromagnetic force, the sub-simulated metal striker collides and contacts with the sub-simulated tripping latch, releasing the mechanical energy in the simulated spring operating mechanism. After the mechanical energy in the simulated spring operating mechanism is released, the simulated operating rod moves to complete the tripping operation.

[0044] In a fifth aspect, the present application further provides a computer program product, comprising a computer program, which, when executed by a processor, implements the following steps:

[0045] During the operation of the simulated electromagnetic tripping coil, the electromagnetic force exerted on the simulated metal striker in the simulated electromagnetic tripping coil is obtained;

[0046] According to the electromagnetic force, the simulation spring operating mechanism is operated;

[0047] During the operation of the simulated spring operating mechanism, the contact force between the simulated metal striker and the simulated tripping latch in the simulated spring operating mechanism is obtained;

[0048] Determine the opening time of the simulated spring operating mechanism based on the electromagnetic force and contact force;

[0049] Among them, the simulated spring operating mechanism includes a sub-simulated electromagnetic tripping coil, a sub-simulated tripping latch and a sub-simulated operating rod; the sub-simulated electromagnetic tripping coil includes a sub-simulated metal striker; the simulation structure of the sub-simulated electromagnetic tripping coil is the same as the simulation structure of the simulated electromagnetic tripping coil; during the operation of the simulated spring operating mechanism, after the sub-simulated metal striker is subjected to electromagnetic force, the sub-simulated metal striker collides and contacts with the sub-simulated tripping latch, releasing the mechanical energy in the simulated spring operating mechanism. After the mechanical energy in the simulated spring operating mechanism is released, the simulated operating rod moves to complete the tripping operation.

[0050] The above-mentioned coupling simulation method, device, computer equipment and storage medium obtain the electromagnetic force exerted on the simulated metal striker in the simulated electromagnetic tripping coil during the operation of the simulated electromagnetic tripping coil; operate the simulated spring operating mechanism based on the electromagnetic force; obtain the contact force between the sub-simulated metal striker and the sub-simulated tripping latch in the simulated spring operating mechanism during the operation of the simulated spring operating mechanism; determine the tripping time of the simulated spring operating mechanism based on the electromagnetic force and the contact force; wherein, the simulated spring operating mechanism includes a sub-simulated electromagnetic tripping coil, a sub-simulated tripping latch and a sub-simulated operating rod; the sub-simulated electromagnetic tripping coil includes a sub-simulated metal striker; the simulation structure of the sub-simulated electromagnetic tripping coil is the same as the simulation structure of the simulated electromagnetic tripping coil; during the operation of the simulated spring operating mechanism, after the sub-simulated metal striker is subjected to the electromagnetic force, the sub-simulated metal striker collides and contacts with the sub-simulated tripping latch, releasing the mechanical energy in the simulated spring operating mechanism. After the mechanical energy in the simulated spring operating mechanism is released, the simulated operating rod moves to complete the tripping operation. This embodiment can take into account the mutual influence of the two components when the circuit breaker is working, so as to ensure the consistency between the model and the actual situation and improve the credibility of the simulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0052] Figure 1 An application environment diagram of a coupled simulation method provided in this embodiment;

[0053] Figure 2A A schematic flow chart of the first coupled simulation method provided in this embodiment;

[0054] Figure 2B A schematic diagram of a simulated electromagnetic tripping coil provided in this embodiment;

[0055] Figure 2C A schematic diagram of a simulated spring operating mechanism provided in this embodiment;

[0056] Figure 3 A schematic diagram of a flow chart of the steps for determining electromagnetic force provided in this embodiment;

[0057] Figure 4 A schematic diagram of a flow chart of a contact force determination step provided in this embodiment;

[0058] Figure 5 A structural block diagram of a coupling simulation device provided in this embodiment;

[0059] Figure 6 This is a diagram of the internal structure of a computer device provided in this embodiment. DETAILED DESCRIPTION

[0060] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0061] The coupling simulation method provided in the embodiment of the present application can be applied to Figure 1In the application environment shown, the terminal 102 communicates with the server 104 via a network. The data storage system can store data that the server 104 needs to process. The data storage system can be integrated on the server 104 or placed on the cloud or other network servers. During the operation of the simulated electromagnetic tripping coil, the computer device obtains the electromagnetic force exerted on the simulated metal striker in the simulated electromagnetic tripping coil; operates the simulated spring operating mechanism based on the electromagnetic force; during the operation of the simulated spring operating mechanism, obtains the contact force between the sub-simulated metal striker and the sub-simulated tripping catch in the simulated spring operating mechanism; and determines the tripping time of the simulated spring operating mechanism based on the electromagnetic force and the contact force; wherein the simulated spring operating mechanism includes a sub-simulated electromagnetic tripping coil, a sub-simulated tripping catch, and a sub-simulated operating rod; the sub-simulated electromagnetic tripping coil includes a sub-simulated metal striker; the simulated structure of the sub-simulated electromagnetic tripping coil is the same as that of the simulated electromagnetic tripping coil; during the operation of the simulated spring operating mechanism, after the sub-simulated metal striker is exerted with the electromagnetic force, the sub-simulated metal striker collides and contacts with the sub-simulated tripping catch, releasing mechanical energy in the simulated spring operating mechanism. After the mechanical energy in the simulated spring operating mechanism is released, the simulated operating rod moves, completing the tripping operation. The computer device can be a terminal or a server. Terminal 102 may be, but is not limited to, various personal computers, laptops, smartphones, tablets, IoT devices, and portable wearable devices. IoT devices may include smart speakers, smart TVs, smart air conditioners, and smart car devices. Portable wearable devices may include smart watches, smart bracelets, and head-mounted devices. Server 104 may be implemented as a standalone server or a server cluster consisting of multiple servers.

[0062] In an exemplary embodiment, Figure 2A As shown, a coupling simulation method is provided, which is applied to Figure 1 The computer device in the embodiment is used as an example to illustrate the method, including the following steps S201 to S204.

[0063] S201 obtains the electromagnetic force exerted on the simulated metal striker in the simulated electromagnetic tripping coil during operation of the simulated electromagnetic tripping coil.

[0064] Among them, the simulated electromagnetic tripping coil can be understood as a simulation model of the electromagnetic tripping coil; the simulated metal striker can be understood as a simulation model of the metal striker; and the electromagnetic force can be the general term for the force exerted on electric charge and current in the electromagnetic field.

[0065] Among them, the electromagnetic tripping coil mechanism is an electromechanical coupling device based on the Ampere force principle, which is composed of an excitation coil, a magnetic shell, a moving armature and a tripping spring. Its core generates an excitation magnetic field through a current-carrying coil, driving the ferromagnetic armature to overcome the spring pre-pressure to achieve the tripping action.

[0066] In some embodiments, during the operation of the simulated electromagnetic tripping coil, the computer device directly obtains the electromagnetic force exerted on the simulated metal striker from the simulated electromagnetic tripping coil.

[0067] Furthermore, during the operation of the simulated electromagnetic tripping coil, the setting of the coil operation flag corresponding to the simulated electromagnetic tripping coil is detected; when the coil operation flag is set to 1, the electromagnetic force exerted on the simulated metal striker in a preset time step is obtained; the electromagnetic force is written into the preset to-be-read file corresponding to the simulated spring operating mechanism; the coil operation flag is set to 0, and the mechanism operation flag corresponding to the simulated spring operating mechanism is set to 1.

[0068] For example, Figure 2B The schematic diagram of the simulated electromagnetic tripping coil is shown. A simulation model of the electromagnetic tripping coil is created in electromagnetic simulation software. The coil is simplified, retaining the tripping coil, iron core, and moving striker. A motion domain is established in the transient solver. This domain defines the range of motion of the metal striker during the simulation, as shown in the schematic diagram, by which the electromagnetic force moves the red striker downward.

[0069] It should be noted that the electromagnetic simulation module itself cannot pause and resume calculations. Therefore, the present invention imports the electromagnetic force file exerted on the striker as a database through a design and setting method, thereby realizing the automatic continued operation of the electromagnetic simulation module under changes in electromagnetic force, so that electromagnetic simulation and mechanism simulation can be interactively calculated in the same time sequence.

[0070] S202 operates the simulated spring operating mechanism according to the electromagnetic force.

[0071] Among them, the simulation spring operating mechanism includes a sub-simulation electromagnetic tripping coil, a sub-simulation tripping latch and a sub-simulation operating rod; the sub-simulation electromagnetic tripping coil includes a sub-simulation metal striker; the simulation structure of the sub-simulation electromagnetic tripping coil is the same as the simulation structure of the simulation electromagnetic tripping coil; for example, Figure 2C The schematic diagram of the simulated spring operating mechanism is shown; during the operation of the simulated spring operating mechanism, after the sub-simulated metal striker is subjected to electromagnetic force, the sub-simulated metal striker collides and contacts with the sub-simulated tripping latch, releasing the mechanical energy in the simulated spring operating mechanism. After the mechanical energy in the simulated spring operating mechanism is released, the simulated operating rod moves to complete the tripping operation.

[0072] Among them, the sub-simulation electromagnetic tripping coil can be understood as the simulated electromagnetic tripping coil in the simulated spring operating mechanism; the sub-simulation tripping latch can be understood as the simulation model corresponding to the tripping latch in the simulated spring operating mechanism; the sub-simulation operating rod can be understood as the simulation model corresponding to the operating rod in the simulated spring operating mechanism.

[0073] In some embodiments, electromagnetic force is used as an initial driving force for the simulated metal striker in the simulated spring operating mechanism, so that the simulated spring operating mechanism operates.

[0074] Furthermore, during the operation of the simulated spring operating mechanism, the setting of the mechanism operation flag is detected; when the mechanism operation flag is set to 1, the electromagnetic force is read from the file to be read; according to the electromagnetic force, the simulated spring operating mechanism is operated; the mechanism operation flag is set to 0, and the coil operation flag is set to 1.

[0075] It should be noted that after simulation, the simulated electromagnetic tripping coil uses the contact force as the load force on the striker in the simulated electromagnetic tripping coil, while the simulated spring operating mechanism uses the electromagnetic force as the driving force for the sub-simulated metal striker. The simulated spring operating mechanism and the simulated electromagnetic tripping coil exchange key parameters via a shared data file: the simulated electromagnetic tripping coil writes structural displacement data to a designated file, while the simulated electromagnetic tripping coil outputs the electromagnetic force distribution results. To ensure the timing accuracy of data exchange, the system sets two state variables: M_FLAG (mechanism operation flag) and E_FLAG (coil operation flag). When the simulated spring operating mechanism completes calculations for the current time step, it updates the force data file and sets M_FLAG to 0 and E_FLAG to 1, triggering the simulated electromagnetic tripping coil to begin calculations. Conversely, when the simulated electromagnetic tripping coil calculations complete, the flag states are also toggled accordingly. This alternating execution mechanism strictly ensures the synchronization of the simulation processes, effectively avoiding data contention and timing errors.

[0076] It's important to note that in the electromagnetic-mechanical co-simulation system, the design and implementation of data communication is crucial for ensuring simulation accuracy. This system utilizes a collaborative computing mechanism based on file interaction and flag control, seamlessly coupling electromagnetic field simulation with mechanical dynamics simulation through a carefully designed communication protocol. The electromagnetic simulation module, based on finite element methods, accurately solves complex electromagnetic field distributions and their time-varying characteristics. The mechanical simulation module, employing multibody dynamics theory, accurately simulates the motion response and force states of the mechanical system.

[0077] S203: During the operation of the simulated spring operating mechanism, the contact force between the sub-simulated metal striker and the sub-simulated tripping latch in the simulated spring operating mechanism is obtained.

[0078] In some embodiments, during the operation of the simulated spring operating mechanism, the computer device directly obtains the contact force between the sub-simulated metal striker and the sub-simulated tripping latch from the simulated spring operating mechanism.

[0079] S204 determines the opening time of the simulated spring operating mechanism according to the electromagnetic force and the contact force.

[0080] In some embodiments, the difference between the electromagnetic force and the contact force is used as the resultant force transmitted to the simulated spring operating mechanism by the sub-simulated metal striker; and the opening time of the simulated spring operating mechanism is determined based on the resultant force and the preset mass of the sub-simulated metal striker.

[0081] For example, since the magnetic flux is affected by the air gap length, the larger the air gap, the greater the magnetic resistance of the magnetic circuit, and the smaller the magnetic flux density, the electromagnetic force decreases. The air gap length is the relative distance between the striker and the iron core. When the iron core moves, the air gap changes, and the electromagnetic force also changes accordingly. Therefore, the motion characteristics of the iron core have a significant impact on the electromagnetic force. The iron core is mainly affected by two forces during the simulation process: the electromagnetic force described above and the contact force obtained in the multi-body calculation module. Therefore, the difference between the electromagnetic force and the contact force is used as the resultant force transmitted by the sub-simulation metal striker to the simulation spring operating mechanism through the following formula (1). Therefore, the contact force will also indirectly affect the magnitude of the electromagnetic force calculated by the electromagnetic calculation module.

[0082] (1)

[0083] Where F is the resultant force transmitted from the sub-simulation metal striker to the simulation spring operating mechanism; F em is the electromagnetic force; F x It should be noted that when the electromagnetic tripping coil is simulated and running at the first time step, the electromagnetic force is 0; when the spring operating mechanism is simulated and running at the first time step, the contact force is 0.

[0084] The above-mentioned coupling simulation method obtains the electromagnetic force exerted on the simulated metal striker in the simulated electromagnetic tripping coil during the operation of the simulated electromagnetic tripping coil; operates the simulated spring operating mechanism based on the electromagnetic force; obtains the contact force between the sub-simulated metal striker and the sub-simulated tripping latch in the simulated spring operating mechanism during the operation of the simulated spring operating mechanism; determines the tripping time of the simulated spring operating mechanism based on the electromagnetic force and the contact force; wherein, the simulated spring operating mechanism includes a sub-simulated electromagnetic tripping coil, a sub-simulated tripping latch and a sub-simulated operating rod; the sub-simulated electromagnetic tripping coil includes a sub-simulated metal striker; the simulation structure of the sub-simulated electromagnetic tripping coil is the same as the simulation structure of the simulated electromagnetic tripping coil; during the operation of the simulated spring operating mechanism, after the sub-simulated metal striker is subjected to the electromagnetic force, the sub-simulated metal striker collides and contacts with the sub-simulated tripping latch, releasing the mechanical energy in the simulated spring operating mechanism. After the mechanical energy in the simulated spring operating mechanism is released, the simulated operating rod moves to complete the tripping operation. This embodiment can take into account the mutual influence of the two components when the circuit breaker is working, so as to ensure the consistency between the model and the actual situation and improve the credibility of the simulation.

[0085] It should be noted that the present invention takes into account the interaction between the electromagnetic tripping coil mechanism and the spring operating mechanism, and directly couples the electromagnetic module with the multi-body module. This direct data coupling ensures that the simulation models of the electromagnetic tripping coil mechanism and the spring operating mechanism can be collaboratively simulated under a unified time step, thereby improving the accuracy of the simulation calculation of the circuit breaker tripping time. This coupling simulation method can more realistically simulate the behavior of the circuit breaker under actual working conditions, thereby improving the credibility of the simulation results. The method of the present invention helps to more accurately evaluate the tripping start time of the circuit breaker, which is crucial for the design and optimization of the circuit breaker. By improving the design accuracy, the reliability and safety of the circuit breaker in the power system can be ensured. At the same time, the coupling simulation technology provided by the present invention can more accurately judge the time and position of the arc during the disconnection process, which is very important for the analysis of arc behavior and the evaluation of arc extinguishing performance, and helps to improve the arc extinguishing performance of the circuit breaker.

[0086] In addition, the coupling calculation method of the present invention takes into account the influence of the structural parameters of the electromagnetic tripping coil mechanism and the spring operating mechanism on each other when the circuit breaker is opened. Direct coupling is achieved between the electromagnetic module and the multi-body module. This technical solution improves the accuracy of the simulation calculation of the motion characteristics of the circuit breaker mechanism, and the calculation results are more consistent with the actual situation. At the same time, with the cooperation of the present invention, more reasonable circuit breaker mechanism action characteristics can more accurately judge the time and position of the arc during the disconnection process, which is very important for the analysis of arc behavior, provides reliable comprehensive analysis and prediction capabilities, and is of great significance to the overall design, optimization and engineering application of the circuit breaker.

[0087] Figure 3 This is a flow chart of the electromagnetic force determination step in one embodiment. This embodiment refines the step of obtaining the electromagnetic force exerted on the simulated metal striker in the simulated electromagnetic tripping coil. This embodiment provides an optional method for determining the electromagnetic force, including the following steps:

[0088] S301 obtains the magnetic flux generated by the simulated electromagnetic tripping coil during operation.

[0089] In some embodiments, after receiving a trip signal, the external drive circuit of the trip coil operates, energizing the coil to generate a magnetic field in the iron core. The electromagnetic force between the striker and the iron core interacts, driving the iron core to move. The magnetomotive force generated by the coil after energization is the main source of magnetomotive force in the magnetic circuit, determining the total magnetic field of the system. Therefore, the magnetic flux generated by the simulated electromagnetic trip coil during operation can be determined using the following formula (2).

[0090] (2)

[0091] Where N is the number of turns of the electromagnetic coil; I is the coil current; Rc is the magnetic resistance, which is composed of the core magnetic resistance and the air gap magnetic resistance. Since the magnetic permeability of the air gap is small, the size of the air gap magnetic resistance determines the size of the magnetic circuit magnetic resistance. is the magnetic flux; F coil is the magnetomotive force of the coil.

[0092] S302 determines the electromagnetic force exerted on the simulated metal striker according to the magnetic flux, the preset vacuum magnetic permeability, and the cross-sectional area of ​​the air gap.

[0093] In some embodiments, the ratio of the magnetic flux to the cross-sectional area of ​​the air gap is used as the magnetic induction intensity of the simulated metal striker in the air gap; and the electromagnetic force exerted on the simulated metal striker is determined based on the magnetic induction intensity, the preset vacuum magnetic permeability and the cross-sectional area of ​​the air gap.

[0094] Exemplarily, the electromagnetic force acting on the simulated metal striker is determined according to the following formula (3).

[0095] (3)

[0096] Among them, F e is the electromagnetic force exerted on the simulated metal striker; B is the magnetic induction intensity in the air gap; μ0 is the vacuum magnetic permeability; A is the cross-sectional area of ​​the air gap; is the magnetic flux.

[0097] In this embodiment, the magnetic flux generated by the simulated electromagnetic tripping coil during operation is obtained; the electromagnetic force exerted on the simulated metal striker is determined based on the magnetic flux, the preset vacuum magnetic permeability and the air gap cross-sectional area; this embodiment can obtain the electromagnetic force more accurately.

[0098] Figure 4 This is a flow chart of the contact force determination step in one embodiment. This embodiment refines the step of obtaining the contact force between the sub-simulated metal striker and the sub-simulated tripping latch in the simulated spring operating mechanism. This embodiment provides an optional method for determining the contact force, including the following steps:

[0099] S401 obtains the penetration depth between the sub-simulated metal striker and the sub-simulated tripping latch.

[0100] In some embodiments, electromagnetic force drives the sub-simulated metal striker to move, and the electromagnetic force drives the sub-simulated metal striker to accelerate. Taking friction into account, when the sub-simulated metal striker accelerates and moves to a certain position, the moving sub-simulated metal striker will strike the locked sub-simulated release latch.

[0101] S402 determines the contact force between the sub-simulated metal striker and the sub-simulated tripping latch in the simulated spring operating mechanism according to the penetration depth, the preset contact stiffness coefficient and the preset damping value.

[0102] In some embodiments, the initial force between the sub-simulated metal striker and the sub-simulated tripping latch is determined based on the penetration depth and the preset contact stiffness coefficient; the initial force is the theoretical contact force between the sub-simulated metal striker and the sub-simulated tripping latch; the sum of the initial force and the preset damping value is used as the contact force between the sub-simulated metal striker and the sub-simulated tripping latch in the simulated spring operating mechanism; the preset damping value is used to adjust the smoothness of the contact force.

[0103] For example, when penetration occurs between the sub-simulated metal striker and the sub-simulated tripping latch, the contact force between the sub-simulated metal striker and the sub-simulated tripping latch in the simulated spring operating mechanism can be determined according to the penetration depth, the preset contact stiffness coefficient and the preset damping value using the following formula (4).

[0104] (4)

[0105] Among them, F contact is the contact force, k is the contact stiffness coefficient, δ is the penetration depth, n is the nonlinear index, which is usually taken as 1 for the rigid contact between the tripping striker and the tripping latch, and σ is the damping term.

[0106] It should be noted that when the contact force exceeds the latch's locking force, the trip latch rotates, releasing the constraints on the main mechanism. Driven by the trip spring, the released main mechanism drives the moving contact at high speed, achieving tripping. The various components of the mechanism are connected by constraints such as revolving, moving, and fixed joints. The multi-body computation module processes these constraints, converting them into algebraic equations and solving them simultaneously with the differential equations of motion.

[0107] (5)

[0108] Where [M] is the mass matrix, [C] is the damping matrix, [K] is the stiffness matrix from the constraints, {Q} is the generalized force vector (including spring force, gravity, contact force, etc.), {q} is the generalized coordinate vector, and n is the nonlinear exponent.

[0109] In this embodiment, the penetration depth between the sub-simulated metal striker and the sub-simulated tripping latch is obtained; based on the penetration depth, the preset contact stiffness coefficient and the preset damping value, the contact force between the sub-simulated metal striker and the sub-simulated tripping latch in the simulated spring operating mechanism is determined; this embodiment can determine the contact force more accurately.

[0110] It should be understood that, although the various steps in the flowcharts involved in the various embodiments described above are displayed in sequence according to the instructions of the arrows, these steps are not necessarily executed in sequence in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least a portion of the steps in the flowcharts involved in the various embodiments described above can include multiple steps or multiple stages, and these steps or stages are not necessarily executed and completed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a portion of steps or stages in other steps.

[0111] Based on the same inventive concept, the present application also provides a coupled simulation device for implementing the coupled simulation method described above. The solution provided by this device is similar to the solution described in the method described above. Therefore, the specific limitations of one or more coupled simulation device embodiments provided below can be found in the above-mentioned limitations of the coupled simulation method and will not be repeated here.

[0112] In an exemplary embodiment, Figure 5 As shown, a coupling simulation device is provided, comprising: a first acquisition module 10, a simulation operation module 11, a second acquisition module 12 and a trip determination module 13, wherein:

[0113] The first acquisition module 10 is used to obtain the electromagnetic force exerted on the simulated metal striker in the simulated electromagnetic tripping coil during the operation of the simulated electromagnetic tripping coil;

[0114] A simulation operation module 11 is used to operate a simulated spring operating mechanism according to electromagnetic force;

[0115] The second acquisition module 12 is used to obtain the contact force between the sub-simulated metal striker and the sub-simulated tripping latch in the simulated spring operating mechanism during the operation of the simulated spring operating mechanism;

[0116] A tripping determination module 13, configured to determine the tripping time of the simulated spring operating mechanism based on the electromagnetic force and the contact force;

[0117] Among them, the simulated spring operating mechanism includes a sub-simulated electromagnetic tripping coil, a sub-simulated tripping latch and a sub-simulated operating rod; the sub-simulated electromagnetic tripping coil includes a sub-simulated metal striker; the simulation structure of the sub-simulated electromagnetic tripping coil is the same as the simulation structure of the simulated electromagnetic tripping coil; during the operation of the simulated spring operating mechanism, after the sub-simulated metal striker is subjected to electromagnetic force, the sub-simulated metal striker collides and contacts with the sub-simulated tripping latch, releasing the mechanical energy in the simulated spring operating mechanism. After the mechanical energy in the simulated spring operating mechanism is released, the simulated operating rod moves to complete the tripping operation.

[0118] In some embodiments, the first acquisition module 10 is further used to obtain the magnetic flux generated by the simulated electromagnetic tripping coil during operation; and determine the electromagnetic force exerted on the simulated metal striker based on the magnetic flux, the preset vacuum magnetic permeability and the air gap cross-sectional area.

[0119] In some embodiments, the first acquisition module 10 is further used to use the ratio between the magnetic flux and the air gap cross-sectional area as the magnetic induction intensity of the simulated metal striker in the air gap; and determine the electromagnetic force exerted on the simulated metal striker based on the magnetic induction intensity, the preset vacuum magnetic permeability and the air gap cross-sectional area.

[0120] In some embodiments, the second acquisition module 12 is also used to obtain the penetration depth between the sub-simulated metal striker and the sub-simulated tripping latch; and determine the contact force between the sub-simulated metal striker and the sub-simulated tripping latch in the simulated spring operating mechanism based on the penetration depth, the preset contact stiffness coefficient and the preset damping value.

[0121] In some embodiments, the second acquisition module 12 is also used to determine the initial force between the sub-simulated metal striker and the sub-simulated tripping latch based on the penetration depth and the preset contact stiffness coefficient; the initial force is the theoretical contact force between the sub-simulated metal striker and the sub-simulated tripping latch; the sum of the initial force and the preset damping value is used as the contact force between the sub-simulated metal striker and the sub-simulated tripping latch in the simulated spring operating mechanism; the preset damping value is used to adjust the smoothness of the contact force.

[0122] In some embodiments, the tripping determination module 13 is further used to use the difference between the electromagnetic force and the contact force as the resultant force transmitted to the simulated spring operating mechanism by the sub-simulated metal striker; and determine the tripping time of the simulated spring operating mechanism based on the resultant force and the preset mass of the sub-simulated metal striker.

[0123] Each module in the coupled simulation device described above can be implemented in whole or in part through software, hardware, or a combination thereof. Each module can be embedded in or independent of a processor in a computer device in hardware form, or can be stored in a memory in the computer device in software form, so that the processor can call and execute the corresponding operations of each module.

[0124] In an exemplary embodiment, a computer device is provided. The computer device may be a server, and its internal structure diagram may be as shown in FIG. Figure 6 As shown. The computer device includes a processor, a memory, an input / output interface (Input / Output, abbreviated as I / O) and a communication interface. The processor, memory and input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and computer program in the non-volatile storage medium. The database of the computer device is used to store data. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a coupled simulation method is implemented.

[0125] Those skilled in the art will understand that Figure 6 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0126] In one embodiment, a computer device is further provided, including a memory and a processor. The memory stores a computer program, and the processor implements the steps in the above method embodiments when executing the computer program.

[0127] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments are implemented.

[0128] In one embodiment, a computer program product is provided, including a computer program, which implements the steps in the above method embodiments when executed by a processor.

[0129] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant regulations.

[0130] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the above-mentioned embodiments. In particular, any reference to memory, database, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The databases involved in the various embodiments provided herein may include at least one of a relational database and a non-relational database. Non-relational databases may include, but are not limited to, distributed databases based on blockchains. The processors involved in the various embodiments provided herein may be, but are not limited to, general-purpose processors, central processing units (CPUs), graphics processing units (GPUs), digital signal processors (DSPs), programmable logic devices (PLDs), data processing logic devices based on quantum computing, and the like.

[0131] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0132] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present application shall be determined by the appended claims.

Claims

1. A coupled simulation method, characterized in that: The method comprises: During the operation of the simulated electromagnetic tripping coil, obtaining the electromagnetic force exerted on the simulated metal striker in the simulated electromagnetic tripping coil; operating a simulated spring operating mechanism according to the electromagnetic force; During the operation of the simulated spring operating mechanism, obtaining the contact force between the sub-simulated metal striker and the sub-simulated tripping latch of the simulated spring operating mechanism; determining a tripping time of the artificial spring operating mechanism according to the electromagnetic force and the contact force; In which, the simulated spring operating mechanism includes a sub-simulated electromagnetic tripping coil, a sub-simulated tripping latch and a sub-simulated operating rod; the sub-simulated electromagnetic tripping coil includes a sub-simulated metal striker; the simulation structure of the sub-simulated electromagnetic tripping coil is the same as the simulation structure of the simulated electromagnetic tripping coil; during the operation of the simulated spring operating mechanism, after the sub-simulated metal striker is subjected to electromagnetic force, the sub-simulated metal striker collides and contacts with the sub-simulated tripping latch, releasing the mechanical energy in the simulated spring operating mechanism. After the mechanical energy in the simulated spring operating mechanism is released, the simulated operating rod moves to complete the tripping operation.

2. The method according to claim 1, characterized in that The obtaining of the electromagnetic force exerted on the simulated metal striker in the simulated electromagnetic tripping coil includes: Obtaining the magnetic flux generated by the simulated electromagnetic tripping coil during operation; The electromagnetic force exerted on the simulated metal striker is determined according to the magnetic flux, the preset vacuum magnetic permeability and the air gap cross-sectional area.

3. The method according to claim 2, characterized in that The determining of the electromagnetic force exerted on the simulated metal striker according to the magnetic flux, the preset vacuum magnetic permeability and the cross-sectional area of ​​the air gap includes: The ratio of the magnetic flux to the cross-sectional area of ​​the air gap is used as the magnetic induction intensity of the simulated metal striker in the air gap; The electromagnetic force exerted on the simulated metal striker is determined according to the magnetic induction intensity, the preset vacuum magnetic permeability and the air gap cross-sectional area.

4. The method according to claim 1, wherein The step of obtaining the contact force between the sub-simulated metal striker and the sub-simulated tripping latch in the simulated spring operating mechanism includes: Obtaining the penetration depth between the sub-simulated metal striker and the sub-simulated tripping latch; The contact force between the sub-simulated metal striker and the sub-simulated tripping latch in the simulated spring operating mechanism is determined according to the penetration depth, the preset contact stiffness coefficient and the preset damping value.

5. The method according to claim 4, characterized in that The step of determining the contact force between the sub-simulated metal striker and the sub-simulated tripping latch in the simulated spring operating mechanism according to the penetration depth, the preset contact stiffness coefficient, and the preset damping value comprises: Determining an initial force between the sub-simulated metal striker and the sub-simulated tripping latch according to the penetration depth and a preset contact stiffness coefficient; the initial force being a theoretical contact force between the sub-simulated metal striker and the sub-simulated tripping latch; The sum of the initial force and the preset damping value is used as the contact force between the sub-simulated metal striker and the sub-simulated tripping latch in the simulated spring operating mechanism; the preset damping value is used to adjust the smoothness of the contact force.

6. The method according to claim 1, characterized in that Determining the opening time of the artificial spring operating mechanism according to the electromagnetic force and the contact force includes: Using the difference between the electromagnetic force and the contact force as the resultant force transmitted by the sub-simulated metal striker to the simulated spring operating mechanism; The opening time of the simulated spring operating mechanism is determined according to the resultant force and the preset mass of the sub-simulated metal striker.

7. A coupling simulation device, characterized in that: The device comprises: A first acquisition module is used to acquire the electromagnetic force exerted on the simulated metal striker in the simulated electromagnetic tripping coil during operation of the simulated electromagnetic tripping coil; A simulation operation module, used to operate a simulated spring operating mechanism according to the electromagnetic force; a second acquisition module, configured to acquire, during the operation of the simulated spring operating mechanism, a contact force between a sub-simulated metal striker and a sub-simulated tripping latch in the simulated spring operating mechanism; An opening determination module is configured to determine an opening time of the simulated spring operating mechanism according to the electromagnetic force and the contact force; In which, the simulated spring operating mechanism includes a sub-simulated electromagnetic tripping coil, a sub-simulated tripping latch and a sub-simulated operating rod; the sub-simulated electromagnetic tripping coil includes a sub-simulated metal striker; the simulation structure of the sub-simulated electromagnetic tripping coil is the same as the simulation structure of the simulated electromagnetic tripping coil; during the operation of the simulated spring operating mechanism, after the sub-simulated metal striker is subjected to electromagnetic force, the sub-simulated metal striker collides and contacts with the sub-simulated tripping latch, releasing the mechanical energy in the simulated spring operating mechanism. After the mechanical energy in the simulated spring operating mechanism is released, the simulated operating rod moves to complete the tripping operation.

8. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 6 are implemented.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

10. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 6 are implemented.

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