Simulation calculation method, equipment, medium and products of swirl air guide device for high-voltage switchgear

Abstract

The present invention relates to a simulation calculation method, equipment, medium and product for a swirl air guide device of a high-voltage switch cabinet. The method comprises the steps of: establishing a high-voltage switch cabinet model, calculating the resistance of the current-carrying conductor and the contact resistance, constructing a swirl air guide device model, inputting the collected real-time parameters into the high-voltage switch cabinet model for temperature simulation, calculating the resistance loss power and the heat source power, and controlling the swirl air guide device. The present invention constructs a high-voltage switch cabinet model and constructs a swirl air guide device through the device parameters of the high-voltage switch cabinet. The present invention can simulate the temperature inside the high-voltage switch cabinet in real time according to the actual use of the high-voltage switch cabinet, thereby achieving the purpose of monitoring the temperature inside the high-voltage switch cabinet without the need for additional monitoring equipment. When the simulated internal temperature of the high-voltage switch cabinet exceeds a preset value, the swirl air guide device can be promptly controlled to perform heat dissipation processing, thereby improving the heat dissipation performance of the high-voltage switch cabinet so that the temperature inside the high-voltage switch cabinet meets the working requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of temperature control of high-voltage switch cabinets, and in particular to a simulation calculation method, equipment, medium and product of a swirl air guide device of a high-voltage switch cabinet. Background Art

[0002] High-voltage switchgear, a device that distributes electrical energy and protects lines, is widely used in power generation, transmission, transformation, and distribution. High-voltage switchgear contains numerous heat-dissipating components, leading to generally high temperatures. However, existing high-voltage switchgear generally suffers from poor heat dissipation, which can lead to poor heat dissipation and excessive temperatures within the switchgear. This is particularly true in high-temperature regions and seasons, where excessive temperatures can easily damage components within the switchgear and cause accidents.

[0003] Existing technologies typically require on-site inspections to monitor the internal operating conditions of high-voltage switchgear. When temperatures rise too high, there are no measures to address them. This inconvenient operation and untimely monitoring pose safety risks and can easily lead to power outages. Therefore, a method is urgently needed to dissipate heat in a timely manner when the internal temperature of a high-voltage switchgear rises. Summary of the Invention

[0004] In order to achieve the above-mentioned purpose and other advantages according to the present invention, a first object of the present invention is to provide a simulation calculation method for a swirl air guide device of a high-voltage switchgear, comprising the following steps:

[0005] Obtain the parameters of each component in the high-voltage switchgear to establish a high-voltage switchgear model;

[0006] Obtain the resistivity, length, and cross-sectional area of ​​the set current-carrying conductor to calculate the resistance of the current-carrying conductor;

[0007] Obtaining a set contact material, and calculating the contact resistance according to a contact coefficient and a contact pressure corresponding to the contact material;

[0008] Obtaining device parameters of the high-voltage switchgear; the device parameters include current-carrying conductor resistance, contact resistance, air inlet diameter, air outlet diameter, and ventilation port diameter;

[0009] Inputting the resistance of the current-carrying conductor, the contact resistance, the diameter of the air inlet, the diameter of the air outlet, and the diameter of the vent into a simulation design model of the swirl air guide device, and outputting the parameters of the swirl air guide device model, wherein the parameters of the swirl air guide device model include the parameters of the air guide plate, the size of the cavity, the parameters of the air intake hole, and the parameters of the heat conducting plate;

[0010] Constructing a swirl air guide device model in a high-voltage switchgear model using the output parameters of the swirl air guide device model;

[0011] Collecting real-time parameters of the high-voltage switchgear; the real-time parameters include ambient temperature, current passing through the conductor, input current, air inlet wind speed, air outlet wind speed, and vent wind speed;

[0012] Input the collected real-time parameters into the high-voltage switchgear model for temperature simulation;

[0013] Calculating the resistive power loss based on the resistance of the current-carrying conductor and the current passing through the conductor;

[0014] Calculating the heat source power by input current and the contact resistance;

[0015] The opening and closing time of the swirl air guide device is controlled by the ambient temperature, air inlet wind speed, air outlet wind speed, vent wind speed, resistance loss power, and heat source power.

[0016] Furthermore, the parameters of the components in the high-voltage switchgear include the materials and power of the main busbar, branch busbars, circuit breaker moving contacts, circuit breaker static contacts, and cables.

[0017] Furthermore, the simulation design model of the swirl air guide device adopts a BP neural network model.

[0018] Furthermore, the construction of the BP neural network model includes the following steps:

[0019] Normalize the parameters of the current-carrying conductor resistance, contact resistance, air inlet diameter, air outlet diameter, vent diameter, and swirl air guide device model;

[0020] The normalized current-carrying conductor resistance, contact resistance, air inlet diameter, air outlet diameter, and vent diameter are used as inputs to the BP neural network model, and the normalized parameters of the swirl air guide device model are used as outputs of the BP neural network model.

[0021] The number of input layer nodes of the BP neural network model is set according to the resistance of the current-carrying conductor, the contact resistance, the diameter of the air inlet, the diameter of the air outlet, and the diameter of the vent;

[0022] Setting the number of output layer nodes of the BP neural network model according to the parameters of the swirl air guide device model;

[0023] Determine the number of hidden layer nodes of the BP neural network model by trial and error based on the number of input layer nodes and the output layer node data;

[0024] According to the determined number of input layer nodes, output layer nodes and hidden layer nodes, a BP neural network model is constructed.

[0025] Furthermore, constructing the BP neural network model according to the determined number of input layer nodes, output layer nodes and hidden layer nodes includes constructing the BP neural network model according to the determined number of input layer nodes, output layer nodes and hidden layer nodes, using the Sigmoid function as an activation function.

[0026] Furthermore, the construction of the BP neural network model includes the following steps:

[0027] The Nadam optimization algorithm is used to optimize the parameters of the BP network.

[0028] Furthermore, the air deflector parameters include the number of layers, tilt angle, and tilt direction of the air deflector;

[0029] The suction hole parameters include the number, shape and aperture of the suction holes;

[0030] The parameters of the heat conducting sheet include shape and quantity.

[0031] The second object of the present invention is to provide an electronic device, comprising: a memory on which program code is stored; a processor, which is connected to the memory and, when the program code is executed by the processor, implements a simulation calculation method for a vortex air guide device of a high-voltage switchgear.

[0032] A third object of the present invention is to provide a computer-readable storage medium having program instructions stored thereon, which, when executed, implements a simulation calculation method for a swirl air guide device of a high-voltage switchgear.

[0033] A fourth object of the present invention is to provide a computer program product, comprising a computer program / instruction, which, when executed by a processor, implements a simulation calculation method for a swirl air guide device of a high-voltage switchgear.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] The present invention provides a simulation calculation method, equipment, medium, and product for a swirl air guide device for a high-voltage switchgear. This method constructs a high-voltage switchgear model and, based on the switchgear's component parameters, constructs a swirl air guide device. This method can simulate the temperature inside the switchgear in real time based on its actual usage, achieving the purpose of monitoring the internal temperature of the switchgear without the need for additional monitoring equipment. When the simulated internal temperature of the switchgear exceeds a preset value, the swirl air guide device can be promptly controlled to dissipate heat, improving the heat dissipation performance of the switchgear and ensuring that the internal temperature of the switchgear meets operating requirements.

[0036] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the description, the following preferred embodiments of the present invention are described in detail with reference to the accompanying drawings. The specific implementation methods of the present invention are given in detail by the following embodiments and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0038] Figure 1 This is a flow chart of a simulation calculation method for a swirl air guide device of a high-voltage switchgear cabinet in Example 1;

[0039] Figure 2 This is a schematic diagram of an electronic device according to Example 2;

[0040] Figure 3 Schematic diagram of a computer-readable storage medium of Example 3. DETAILED DESCRIPTION

[0041] The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0042] Example 1

[0043] Simulation calculation method of swirl air guide device of high voltage switchgear, such as Figure 1 As shown, the following steps are included:

[0044] The parameters of each component in the high-voltage switchgear are obtained to establish a high-voltage switchgear model; the parameters of each component in the high-voltage switchgear include the material and power of the main busbar, branch busbar, circuit breaker moving contact, circuit breaker static contact, and cable.

[0045] Obtain the resistivity, length, and cross-sectional area of ​​the set current-carrying conductor to calculate the resistance of the current-carrying conductor;

[0046] Get the set contact material, and calculate the contact resistance based on the contact coefficient and contact pressure corresponding to the contact material;

[0047] Obtain device parameters of high-voltage switchgear; device parameters include current-carrying conductor resistance, contact resistance, air inlet diameter, air outlet diameter, and ventilation port diameter;

[0048] The resistance of the current-carrying conductor, the contact resistance, the diameter of the air inlet, the diameter of the air outlet, and the diameter of the ventilation port are input into the simulation design model of the swirl air guide device, and the parameters of the swirl air guide device model are output. The parameters of the swirl air guide device model include the parameters of the air guide plate, the size of the cavity, the parameters of the air intake hole, and the parameters of the heat conduction plate; among them, the parameters of the air guide plate include the number of layers, the inclination angle, and the inclination direction of the air guide plate; the parameters of the air intake hole include the number, shape, and aperture of the air intake holes; and the parameters of the heat conduction plate include the shape and quantity.

[0049] In this embodiment, the swirl air guide device simulation design model adopts a BP neural network model. Specifically, the construction of the BP neural network model includes the following steps:

[0050] Normalize the parameters of the current-carrying conductor resistance, contact resistance, air inlet diameter, air outlet diameter, vent diameter, and swirl air guide device model;

[0051] The normalized current-carrying conductor resistance, contact resistance, air inlet diameter, air outlet diameter, and vent diameter are used as inputs to the BP neural network model, and the normalized parameters of the swirl air guide device model are used as outputs of the BP neural network model.

[0052] The number of input layer nodes of the BP neural network model is set according to the resistance of the current-carrying conductor, the contact resistance, the diameter of the air inlet, the diameter of the air outlet, and the diameter of the ventilation outlet;

[0053] The number of output layer nodes of the BP neural network model is set according to the parameters of the swirl air guide device model;

[0054] According to the number of input layer nodes and output layer node data, the number of hidden layer nodes of the BP neural network model is determined by trial and error.

[0055] According to the determined number of input layer nodes, output layer nodes and hidden layer nodes, a BP neural network model is constructed. In this embodiment, according to the determined number of input layer nodes, output layer nodes and hidden layer nodes, a sigmoid function is used as an activation function to construct a BP neural network model.

[0056] In this embodiment, the Nadam optimization algorithm is used to optimize the parameters of the BP network. The Nadam optimization algorithm is an extension of the Adaptive Motion Estimation (Adam) optimization algorithm, which adds Nesterov's Accelerated Gradient (NAG) or Nesterov momentum, which is an improved momentum.

[0057] Constructing a swirl air guide device model in a high-voltage switchgear model using the output parameters of the swirl air guide device model;

[0058] Collect real-time parameters of high-voltage switchgear; real-time parameters include ambient temperature, current through conductor, input current, air inlet wind speed, air outlet wind speed, and vent wind speed;

[0059] Input the collected real-time parameters into the high-voltage switchgear model for temperature simulation;

[0060] Calculate the power loss from the resistance of the current-carrying conductor and the current through the conductor;

[0061] Calculate the heat source power through input current and contact resistance;

[0062] The opening and closing time of the swirl air guide device is controlled by the ambient temperature, air inlet wind speed, air outlet wind speed, vent wind speed, resistance loss power, and heat source power.

[0063] The present invention generates a swirl in the high-voltage switch cabinet through a simulated swirl air guide device, promotes air flow, can timely and efficiently discharge heat from the high-voltage switch cabinet, can effectively protect the internal components, improve the safety performance of the high-voltage switch cabinet, can improve the use effect of the high-voltage switch cabinet, and extend the service life of the high-voltage switch cabinet.

[0064] Example 2

[0065] An electronic device, such as Figure 2 As shown, it includes: a memory on which program code is stored; a processor, which is connected to the memory, and when the program code is executed by the processor, a simulation calculation method for a swirl air guide device of a high-voltage switch cabinet is implemented.

[0066] Example 3

[0067] A computer-readable storage medium such as Figure 3 As shown, program instructions are stored thereon, and when the program instructions are executed, a simulation calculation method for a swirl air guide device of a high-voltage switch cabinet is implemented. For a detailed description of the method, reference can be made to the corresponding description in the above method embodiment, which will not be repeated here.

[0068] Example 4

[0069] A computer program product includes a computer program / instructions that, when executed by a processor, implements a simulation calculation method for a swirl air guide device for a high-voltage switchgear. For a detailed description of the method, reference can be made to the corresponding description in the above method embodiment and will not be repeated here.

[0070] It should also be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, commodity, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or includes elements inherent to such process, method, commodity, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, commodity, or apparatus that includes the element.

[0071] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0072] The above are merely examples of the present invention and are not intended to limit one or more embodiments of the present invention. For those skilled in the art, various modifications and variations of one or more embodiments of the present invention may be made. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of one or more embodiments of the present invention shall be included within the scope of the claims of one or more embodiments of the present invention.

Claims

1. The simulation calculation method of the swirl air guide device of the high-voltage switchgear is characterized by: The following steps are involved: Obtain the parameters of each component in the high-voltage switchgear to establish a high-voltage switchgear model; Obtain the resistivity, length, and cross-sectional area of ​​the set current-carrying conductor to calculate the resistance of the current-carrying conductor; Obtaining a set contact material, and calculating the contact resistance according to a contact coefficient and a contact pressure corresponding to the contact material; Obtaining device parameters of the high-voltage switchgear; the device parameters include current-carrying conductor resistance, contact resistance, air inlet diameter, air outlet diameter, and ventilation port diameter; Inputting the resistance of the current-carrying conductor, the contact resistance, the diameter of the air inlet, the diameter of the air outlet, and the diameter of the vent into a simulation design model of the swirl air guide device, and outputting the parameters of the swirl air guide device model, wherein the parameters of the swirl air guide device model include the parameters of the air guide plate, the size of the cavity, the parameters of the air intake hole, and the parameters of the heat conducting plate; Constructing a swirl air guide device model in a high-voltage switchgear model using the output parameters of the swirl air guide device model; Collecting real-time parameters of the high-voltage switchgear; the real-time parameters include ambient temperature, current passing through the conductor, input current, air inlet wind speed, air outlet wind speed, and vent wind speed; Input the collected real-time parameters into the high-voltage switchgear model for temperature simulation; Calculating the resistive power loss based on the resistance of the current-carrying conductor and the current passing through the conductor; Calculating the heat source power by input current and the contact resistance; The opening and closing time of the swirl air guide device is controlled by the ambient temperature, air inlet wind speed, air outlet wind speed, vent wind speed, resistance loss power, and heat source power.

2. The simulation calculation method for the swirl air guide device of the high-voltage switchgear according to claim 1 is characterized in that: The parameters of the components in the high-voltage switch cabinet include the materials and power of the main busbar, branch busbars, circuit breaker moving contacts, circuit breaker static contacts, and cables.

3. The simulation calculation method for the swirl air guide device of the high-voltage switchgear according to claim 1 is characterized in that: The simulation design model of the swirl air guide device adopts a BP neural network model.

4. The simulation calculation method for the swirl air guide device of the high-voltage switchgear according to claim 3 is characterized in that: The construction of the BP neural network model includes the following steps: Normalize the parameters of the current-carrying conductor resistance, contact resistance, air inlet diameter, air outlet diameter, vent diameter, and swirl air guide device model; The normalized current-carrying conductor resistance, contact resistance, air inlet diameter, air outlet diameter, and vent diameter are used as inputs to the BP neural network model, and the normalized parameters of the swirl air guide device model are used as outputs of the BP neural network model. The number of input layer nodes of the BP neural network model is set according to the resistance of the current-carrying conductor, the contact resistance, the diameter of the air inlet, the diameter of the air outlet, and the diameter of the vent; Setting the number of output layer nodes of the BP neural network model according to the parameters of the swirl air guide device model; Determine the number of hidden layer nodes of the BP neural network model by trial and error based on the number of input layer nodes and the output layer node data; According to the determined number of input layer nodes, output layer nodes and hidden layer nodes, a BP neural network model is constructed.

5. The simulation calculation method for the swirl air guide device of the high-voltage switchgear according to claim 4 is characterized in that: The method of constructing a BP neural network model based on the determined number of input layer nodes, output layer nodes and hidden layer nodes includes constructing a BP neural network model based on the determined number of input layer nodes, output layer nodes and hidden layer nodes, using a Sigmoid function as an activation function.

6. The simulation calculation method for the swirl air guide device of the high-voltage switchgear according to claim 5 is characterized in that: The construction of the BP neural network model includes the following steps: The Nadam optimization algorithm is used to optimize the parameters of the BP network.

7. The simulation calculation method for the swirl air guide device of the high-voltage switchgear according to claim 1 is characterized in that: The air deflector parameters include the number of layers, tilt angle, and tilt direction of the air deflector; The suction hole parameters include the number, shape and aperture of the suction holes; The parameters of the heat conducting sheet include shape and quantity.

8. An electronic device, characterized in that: include: a memory having program code stored therein; A processor is coupled to the memory and implements the method according to any one of claims 1 to 7 when the program code is executed by the processor.

9. A computer-readable storage medium, characterized in that Program instructions are stored thereon, and when the program instructions are executed, the method according to any one of claims 1 to 7 is implemented.

10. A computer program product comprising a computer program / instructions, characterized in that When the computer program / instructions are executed by a processor, the method according to any one of claims 1 to 7 is implemented.

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