Cooling equipment layout method and device, electronic equipment and storage medium

Abstract

The invention relates to the technical field of microgrids, in particular to a cooling equipment layout method and device, electronic equipment and a storage medium. Obtaining the corresponding number and position layout of generator sets in the micro-grid cabin; determining to-be-cooled heat of the micro-grid cabin based on the corresponding number of the generator sets; determining at least one installable position in the micro-grid cabin according to the position layout corresponding to the generator set; and determining at least one target cooling device and a target installation position corresponding to each target cooling device based on each installable position and the to-be-radiated heat. The reasonably configured target cooling equipment and the accurate target installation position can ensure that the temperature in the micro-grid cabin is uniform and stable. According to the invention, local overheating or supercooling is effectively avoided, damage to the generator set and other equipment due to temperature fluctuation is reduced, reliability and stability of the whole micro-grid system are improved, and continuity of power supply is guaranteed. Therefore, the problem of high temperature in a multi-unit micro-grid cabin is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of microgrids, and particularly to a method and device for arranging cooling equipment, an electronic device, and a storage medium. Background Art

[0002] At present, with the rapid development of microgrids, internal combustion engine generator sets can be quickly started as backup power supplies when renewable energy sources (such as solar energy and wind energy) are unable to supply power due to weather or equipment failures, ensuring continuous power supply in the microgrid and avoiding power outages. They can be used as peak shaving power supplies to supplement power gaps and balance supply and demand when renewable energy generation is insufficient or load demand surges. They can also be used as starting power supplies to provide initial power for energy storage systems or control systems when the main grid is powered off or the microgrid is restarted.

[0003] Container generator sets are currently developing rapidly from single units to multi-units (multiple engine generators). However, limited by the standard container size, more requirements are put forward for the environmental cooling in the microgrid engine room of multi-unit sets (2 units or more). How to design and arrange the air inlets, outlets, and fans to meet the control of the environmental temperature in the microgrid engine room.

[0004] In the related art, only single-unit containers are considered, and the problem of high temperature in the engine room of multi-unit microgrids cannot be solved. Summary of the Invention

[0005] In view of this, the present invention provides a method and device for arranging cooling equipment, an electronic device, and a storage medium to solve the problem of high temperature in the engine room of multi-unit microgrids that cannot be solved.

[0006] In a first aspect, the present invention provides a method for arranging cooling equipment, the method comprising:

[0007] Obtaining the number and location layout of generator sets in the microgrid engine room;

[0008] Determining the heat to be dissipated in the microgrid engine room based on the number of generator sets;

[0009] Determining at least one installable position in the microgrid engine room according to the location layout of the generator sets;

[0010] Determining at least one target cooling equipment and the corresponding target installation positions of each target cooling equipment based on each installable position and the heat to be dissipated.

[0011] The cooling equipment layout method provided by the embodiments of this application obtains the quantity and location layout corresponding to the generator sets in the microgrid engine room, thereby providing solid basic information for subsequent heat dissipation planning and equipment layout, and avoiding blind design and operation. Based on the quantity of the generator sets, the heat to be dissipated in the microgrid engine room is determined, so that the design of the heat dissipation system can be accurately matched with the actual requirements. This can avoid damage to the generator sets caused by insufficient heat dissipation capacity or waste of resources and increase in costs due to excessive heat dissipation capacity. According to the location layout corresponding to the generator sets, at least one installable position in the microgrid engine room is determined. Thereby, the internal space of the microgrid engine room can be fully utilized. This can avoid the situation where the installation position is unreasonable, resulting in idle space or crowded equipment installation, improve the effective utilization rate of the engine room space, and create convenient conditions for subsequent equipment installation and maintenance. In addition, reasonably selecting the installable position helps to optimize the air flow organization in the microgrid engine room. Installing the heat dissipation equipment in a suitable position can guide the cooling air to flow more efficiently through the heat-generating parts of the generator sets, enhance the heat dissipation effect, and improve the overall performance of the heat dissipation system. Based on each installable position and the heat to be dissipated, at least one target cooling equipment and the target installation position corresponding to each target cooling equipment are determined. By comprehensively considering the installable position and the heat to be dissipated, it is possible to accurately select the target cooling equipment of the appropriate type, specification, and quantity, and determine its optimal installation position. This precise configuration ensures that the heat dissipation requirements of each area can be met. Through precise analysis, the cooling equipment combination and installation plan with the highest cost performance are selected to avoid over-investment. On the premise of meeting the heat dissipation requirements, appropriate equipment and installation methods are selected to reduce the equipment procurement cost, installation cost, and subsequent operation and maintenance costs, and improve the economic benefits of the microgrid heat dissipation system. The reasonably configured target cooling equipment and the accurate target installation position can ensure that the temperature in the microgrid engine room is uniform and stable. It can effectively avoid local overheating or overcooling phenomena, reduce the damage caused to the generator sets and other equipment due to temperature fluctuations, improve the reliability and stability of the entire microgrid system, and ensure the continuity of power supply. Thus, the problem of high temperature in the multi-generator microgrid engine room is solved.

[0012] In an alternative embodiment, the target cooling equipment is a target fan and a target air vent. Based on each installable position and the heat to be dissipated, determining at least one target cooling equipment and the target installation position corresponding to each target cooling equipment includes:

[0013] Calculate the air volume of the fan according to the heat to be dissipated;

[0014] Determine the target installation position corresponding to at least one target fan according to the air volume of the fan and each installable position;

[0015] Calculate the total area corresponding to the air inlet and outlet according to the air volume of the fan and the engine intake air volume;

[0016] Calculate the target installation positions corresponding to at least one target air vent based on the target installation positions corresponding to each target fan and the total area corresponding to the air inlets and outlets.

[0017] The cooling equipment layout method provided by the embodiments of the present application calculates the fan air volume according to the heat to be dissipated, so as to ensure that the cooling capacity provided by the fan perfectly matches the actual heat dissipation requirement. This can avoid insufficient heat dissipation caused by insufficient air volume, resulting in overheating and damage of equipment and affecting the normal operation of the microgrid; it can also prevent excessive air volume from causing energy waste and increasing the operating cost. According to the fan air volume and each installable position, determine the target installation positions corresponding to at least one target fan, so as to make full use of limited space resources. In an environment with limited space such as the microgrid engine room, reasonably plan the fan installation positions to ensure that the fan can not only exert the maximum heat dissipation efficiency, but also will not occupy too much space and affect the installation and maintenance of other equipment. For example, according to the space layout and the air flow direction, install the fan in a corner close to the heat source and with good ventilation to improve the space utilization rate while optimizing the heat dissipation effect. Calculate the total area corresponding to the air inlets and outlets according to the fan air volume and the engine intake air volume, so as to ensure the balance between the intake air volume and the exhaust air volume of the ventilation system. On the one hand, meet the intake air volume required for the normal operation of the engine, ensure sufficient combustion, and improve the engine efficiency; on the other hand, ensure sufficient exhaust air volume to timely discharge the heat and waste gas in the microgrid engine room and maintain a good working environment. For example, if the fan air volume is V1 cubic meters per hour and the engine intake air volume is V2 cubic meters per hour, calculate the appropriate total area of the air inlets and outlets to make the ventilation system operate stably. Calculate the target installation positions corresponding to at least one target air vent based on the target installation positions corresponding to each target fan and the total area corresponding to the air inlets and outlets, which can build an efficient ventilation and heat dissipation path. Make the cooling air blown by the fan smoothly enter the engine room through the air inlet, flow through the heating equipment, and then be discharged through the air outlet to form a good air circulation. This optimized ventilation path can maximize the heat dissipation efficiency and ensure that the equipment can operate normally in a high-temperature environment.

[0018] In an optional implementation manner, determining the target installation positions corresponding to at least one target fan according to the fan air volume and each installable position includes:

[0019] Determine the number of target fans according to the fan air volume and the attribute information corresponding to the target fans;

[0020] Obtain the position with the highest temperature in the microgrid engine room;

[0021] From each installable position, determine the target installation positions that are closest to the position with the highest temperature in the microgrid engine room and correspond to the number of target fans.

[0022] The cooling equipment layout method provided by the embodiments of the present application determines the number of target fans according to the air volume of the fans and the attribute information corresponding to the target fans. The air volume of the fans is directly related to their heat dissipation capacity, and the attribute information of the target fans, such as fan type (axial flow, centrifugal, etc.), wind pressure characteristics, power size, etc., determines the operating efficiency of the fans under specific working conditions. Considering these factors comprehensively, the required number of fans can be accurately determined according to the actual heat dissipation requirements of the engine room. For example, in an engine room environment with a spacious space and a long ventilation path, centrifugal fans are more suitable due to their higher wind pressure. Combining the required air volume, the appropriate number of fans can be obtained through precise calculation, avoiding poor heat dissipation caused by insufficient fan quantity or waste of resources and increased energy consumption caused by excessive quantity. In addition, accurately determining the number of fans can avoid over-configuration or under-configuration. If the number of fans is too large, it will cause a significant increase in equipment procurement, installation, and energy consumption costs, and may also affect the normal distribution of air flow due to space congestion; if the number of fans is insufficient, the heat dissipation requirements cannot be met, endangering the safe operation of the equipment. By scientifically calculating the number of fans based on the air volume of the fans and the overall heat dissipation load of the engine room, while meeting the heat dissipation requirements, the utilization of resources can be optimized to the greatest extent, the comprehensive cost input of the system can be reduced, and the economic benefits of the microgrid operation can be improved. Obtain the position with the highest temperature in the microgrid engine room; determine, from each installable position, the target installable position closest to the position with the highest temperature in the microgrid engine room corresponding to the number of target fans. Thereby, the cooling air can reach the heating area along the shortest path, significantly reducing the loss of heat during transmission and greatly improving the heat dissipation efficiency. In addition, shortening the distance between the fan and the high-temperature area means that the fan does not need to consume too much energy to transport the cooling air over a long distance. On the premise of meeting the heat dissipation requirements, the fan can operate at a lower power state, thereby reducing the energy consumption of the entire heat dissipation system.

[0023] In an alternative embodiment, based on the target installation positions corresponding to each target fan and the total area corresponding to the air inlets and outlets, calculate the target installation positions corresponding to at least one target air outlet, including:

[0024] Based on the equal-volume requirement of the flow channel, calculate the target installation positions corresponding to at least one target air outlet according to the target installation positions corresponding to each target fan and the total area corresponding to the air inlets and outlets.

[0025] The cooling equipment layout method provided by the embodiments of the present application calculates the target installation positions of at least one target air outlet based on the equal-volume requirement of the flow channel, the target installation positions corresponding to each target fan, and the total area corresponding to the air inlet and outlet. By meeting the equal-volume requirement of the flow channel to determine the target installation positions of the target air outlets, the air flow distribution in the microgrid engine room can be made more uniform. This can avoid local air flow short-circuit or stagnation, ensure that the cooling air can effectively reach all parts of the microgrid engine room that need heat dissipation, thereby improving the overall heat dissipation effect, ensuring that equipment such as generator sets operates in a suitable temperature environment, and reducing equipment failures and performance degradation caused by excessive temperature. In addition, reasonable air inlet and outlet positions can make the cooling air sent by the fan flow along the designed flow channel, maximizing the cooling capacity of the air and reducing air flow disorder and energy loss.

[0026] In an alternative embodiment, calculating the target installation positions of at least one target air outlet based on the equal-volume requirement of the flow channel, the target installation positions corresponding to each target fan, and the total area corresponding to the air inlet and outlet includes:

[0027] Based on the equal-volume requirement of the flow channel, calculate at least one candidate solution according to the target installation positions corresponding to each target fan and the total area corresponding to the air inlet and outlet; each candidate solution includes the candidate installation positions corresponding to at least one candidate air inlet and outlet;

[0028] For each candidate solution, based on the candidate solution, each target fan, and the target installation positions corresponding to each target fan, perform CFD simulation calculations to obtain the candidate wind speeds of each candidate air inlet and outlet corresponding to the candidate solution, the first average wind speed corresponding to each candidate air inlet and outlet, and the second average wind speed at the position with the highest temperature in the microgrid engine room;

[0029] According to the candidate wind speeds, the first average wind speed, and the second average wind speed corresponding to each candidate solution, screen each candidate solution to obtain at least one alternative solution;

[0030] Based on each alternative solution, determine the target solution; the target solution includes the target installation positions corresponding to at least one target air outlet.

[0031] The cooling equipment layout method provided by the embodiments of the present application calculates at least one candidate solution based on the equal-volume requirements of the flow channels, according to the target installation positions corresponding to each target fan and the total area corresponding to the air inlets and outlets. Thus, it can ensure that under the premise of meeting the basic ventilation and heat dissipation requirements, multiple possible installation position solutions for the air inlets and outlets are initially planned. This provides a basis for subsequent fine optimization, avoids blindly selecting the positions of the air inlets and outlets, ensures that each candidate solution has a certain degree of rationality and feasibility, and theoretically enables the reasonable flow of cooling air in the microgrid engine room. For each candidate solution, based on the candidate solution, each target fan, and the target installation position corresponding to each target fan, CFD simulation calculations are performed, which can accurately simulate the actual flow conditions and temperature distribution of the air in the microgrid engine room under different candidate solutions, obtain the candidate wind speeds of each candidate air inlet and outlet corresponding to the candidate solution, the first average wind speed corresponding to each candidate air inlet and outlet, and the second average wind speed at the position with the highest temperature in the microgrid engine room, ensuring the accuracy of the candidate wind speeds of the obtained candidate air inlets and outlets, the first average wind speed corresponding to each candidate air inlet and outlet, and the second average wind speed at the position with the highest temperature in the microgrid engine room. Then, according to the candidate wind speeds, the first average wind speed, and the second average wind speed corresponding to each candidate solution, each candidate solution is screened to obtain at least one backup solution. The screening process is based on quantitative wind speed data, avoiding the error of subjective judgment, ensuring that the selected backup solution can better meet the heat dissipation requirements of the engine room theoretically, and improving the scientificity and accuracy of the solution selection. These backup solutions have better performance in ensuring the effective flow of cooling air and reducing the highest temperature in the microgrid engine room, providing a more reliable selection range for finally determining the optimal solution. Based on each backup solution, a target solution is determined. The target air inlet and outlet installation position in the target solution is obtained through multiple rounds of screening and optimization, which can maximize the heat dissipation efficiency of the engine room, reduce the risk of equipment damage due to overheating, and ensure the stable operation of the generator set in the microgrid. This method for determining the solution based on scientific calculations and simulation analysis helps to improve the performance and reliability of the entire cooling system, reduce the costs of later commissioning and maintenance, and also provides a reference example and method for similar engine room heat dissipation designs.

[0032] In an alternative embodiment, determining the target solution based on each backup solution includes:

[0033] Calculating the objective function values corresponding to each backup solution based on the objective function;

[0034] Based on the objective function values corresponding to each backup solution, determining the target solution with the largest objective function value from each backup solution.

[0035] The cooling equipment layout method provided by the embodiments of the present application calculates the objective function values corresponding to each alternative plan based on the objective function, and determines the target plan with the largest objective function value from each alternative plan. Thus, it can ensure that the finally selected plan achieves the optimal performance after comprehensively considering multiple factors. This method is data-driven, can objectively evaluate the advantages and disadvantages of each alternative plan, and avoids errors that may be brought by human subjective preferences and empirical judgments. Selecting the plan with the largest objective function value means that, on the premise of meeting various design constraints and requirements, this plan can maximize the design goals, such as minimizing energy consumption or cost while ensuring good cooling effect, thereby improving the economy and reliability of the entire system, and providing a scientific and effective optimization method for the heat dissipation design of the engine room.

[0036] In an alternative embodiment, the objective function is:

[0037]

[0038] where ω1 and ω2 are weight coefficients, and ω1 + ω2 = 1, 0 ≤ w1, w2 ≤ 1, T i represents the temperature at the i-th monitoring point in the microgrid engine room, and the total number of monitoring points is n; T max = max(T), T i represents the wind speed at the j-th monitoring point corresponding to the position with the highest temperature in the microgrid engine room, and the total number of monitoring points is m.

[0039] The cooling equipment layout method provided by the embodiments of the present application aims to minimize the difference between the highest temperature and the average temperature in the microgrid engine room, and maximize the average wind speed near the surface of the high-temperature components of the engine as the objective function. It can make the temperature distribution in the microgrid engine room more uniform. Maximizing the average wind speed near the surface of the high-temperature components of the engine can accelerate heat dissipation, reduce the temperature of the high-temperature components, and further improve the stability and reliability of the equipment operation. In addition, when the temperature distribution in the microgrid engine room is uniform and the high-temperature components are effectively cooled, the equipment can operate under more suitable temperature conditions, and its energy conversion efficiency will be improved.

[0040] In a second aspect, the present invention provides a cooling equipment layout device, which includes:

[0041] An acquisition module, configured to acquire the number and position layout of the generator sets in the microgrid engine room;

[0042] A first determination module, configured to determine the heat to be dissipated in the microgrid engine room based on the number of generator sets;

[0043] A second determination module, configured to determine at least one installable position in the microgrid engine room according to the corresponding position layout of the generator set;

[0044] A third determination module, configured to determine at least one target cooling device and the corresponding target installation position of each target cooling device based on each installable position and the heat to be dissipated.

[0045] The cooling device layout device provided by the embodiments of the present application obtains the corresponding quantity and position layout of the generator sets in the microgrid engine room, thereby providing solid basic information for subsequent heat dissipation planning and equipment layout, and avoiding blind design and operation. Based on the corresponding quantity of the generator sets, the heat to be dissipated in the microgrid engine room is determined, so that the design of the heat dissipation system can be accurately matched with the actual requirements. It is avoided that the generator set is damaged due to insufficient heat dissipation capacity, or resource waste and cost increase are caused due to excessive heat dissipation capacity. According to the corresponding position layout of the generator sets, at least one installable position in the microgrid engine room is determined. Thus, the internal space of the microgrid engine room can be fully utilized. The situation where the installation position is unreasonable, resulting in some space being idle or equipment being crowded during installation, is avoided, the effective utilization rate of the engine room space is improved, and convenient conditions are created for subsequent equipment installation and maintenance. In addition, reasonably selecting the installable position helps to optimize the air flow organization in the microgrid engine room. Installing the heat dissipation equipment in a suitable position can guide the cooling air to flow through the heat generating parts of the generator set more efficiently, enhance the heat dissipation effect, and improve the overall performance of the heat dissipation system. Based on each installable position and the heat to be dissipated, at least one target cooling device and the corresponding target installation position of each target cooling device are determined. By comprehensively considering the installable position and the heat to be dissipated, the target cooling device with the appropriate type, specification and quantity can be accurately selected, and its best installation position can be determined. This precise configuration ensures that the heat dissipation requirements of each area can be met. Through precise analysis, the cooling device combination and installation plan with the highest cost performance are selected to avoid over-investment. On the premise of meeting the heat dissipation requirements, appropriate equipment and installation methods are selected to reduce the equipment procurement cost, installation cost and subsequent operation and maintenance cost, and improve the economic benefits of the microgrid heat dissipation system. The reasonably configured target cooling device and the accurate target installation position can ensure that the temperature in the microgrid engine room is uniform and stable. Effectively avoid local overheating or overcooling phenomena, reduce the damage caused to the generator set and other equipment due to temperature fluctuations, improve the reliability and stability of the entire microgrid system, and ensure the continuity of power supply. Thus, the problem of high temperature in the multi-generator microgrid engine room is solved.

[0046] In a third aspect, the present invention provides a computer device, including: a memory and a processor, which are communicatively connected to each other, the memory stores computer instructions, and the processor executes the computer instructions to execute the cooling device layout method according to the first aspect or any corresponding implementation manner thereof.

[0047] Fourthly, the present invention provides a computer-readable storage medium, on which computer instructions are stored, and the computer instructions are used to cause a computer to execute the cooling device layout method according to the first aspect or any corresponding embodiment thereof.

[0048] Fifthly, the present invention provides a computer program product, including computer instructions, and the computer instructions are used to cause a computer to execute the cooling device layout method according to the first aspect or any corresponding embodiment thereof. Description of the Drawings

[0049] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required to be used in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0050] Figure 1 is a flowchart of the cooling device layout method according to an embodiment of the present invention;

[0051] Figure 2 is a flowchart of another cooling device layout method according to an embodiment of the present invention;

[0052] Figure 3 is a schematic diagram of the definition of the distance between the fan air outlets according to an embodiment of the present invention;

[0053] Figure 4 is a schematic diagram of the layout of two units side by side according to an embodiment of the present invention;

[0054] Figure 5 is a schematic diagram of the layout of two units in series according to an embodiment of the present invention;

[0055] Figure 6 is a structural block diagram of the cooling device layout device according to an embodiment of the present invention;

[0056] Figure 7 is a schematic diagram of the hardware structure of the computer device according to an embodiment of the present invention. Detailed Embodiments

[0057] [[ID=4

[0058] At present, microgrids are developing rapidly. When renewable energy sources (such as solar energy and wind energy) are unable to supply power due to weather or equipment failures, internal combustion engine generator sets can be quickly started as backup power sources to ensure continuous power supply in the microgrid and avoid power outages. They can be used as peak shaving power sources to supplement the power gap and balance supply and demand when the power generation of renewable energy sources is insufficient or the load demand surges. They can be used as starting power sources to provide initial power for energy storage systems or control systems when the main grid is powered off or the microgrid is restarted.

[0059] Container generator sets are currently developing rapidly from single units to multi-units (multiple engine generators). Then, limited by the standard container size, more requirements are put forward for the environmental cooling in the microgrid engine room of multi-units (2 units or more). How to design and layout the air inlets, outlets and fans to meet the control of the environmental temperature in the microgrid engine room.

[0060] In related technologies, only single-unit containers are considered, and the problem of high temperature in the engine room of multi-unit microgrids cannot be solved.

[0061] It should be noted that the method for laying out cooling equipment provided in the embodiments of the present application may have an execution subject that is a device for laying out cooling equipment. The device for laying out cooling equipment can be implemented as part or all of a computer device through software, hardware, or a combination of software and hardware. Among them, the computer device can be a server or a terminal. Among them, the server in the embodiments of the present application can be a single server or a server cluster composed of multiple servers. The terminal in the embodiments of the present application can be other intelligent hardware devices such as a smart phone, a personal computer, a tablet computer, a wearable device, and a smart robot. In the following method embodiments, the execution subject is taken as an electronic device for illustration.

[0062] According to an embodiment of the present invention, an embodiment of a method for laying out cooling equipment is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. And although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order than here.

[0063] In this embodiment, a method for laying out cooling equipment is provided, which can be used for the above-mentioned electronic device. Figure 1 It is a flowchart of the method for laying out cooling equipment according to an embodiment of the present invention, as Figure 1 shown, and the process includes the following steps:

[0064] Step S101, obtain the number and location layout of the generator sets in the microgrid engine room.

[0065] Specifically, the electronic device can receive the quantity and location layout of the generator sets in the microgrid engine room input by the user, or can also receive the quantity and location layout of the generator sets in the microgrid engine room sent by other devices. The embodiments of the present application do not specifically limit the manner in which the electronic device obtains the quantity and location layout of the generator sets in the microgrid engine room.

[0066] Step S102: Determine the heat to be dissipated in the microgrid engine room based on the quantity of the generator sets.

[0067] Specifically, the electronic device can obtain the heat generated by the internal combustion engines and generators in the engine room of the generator sets. For an internal combustion engine, its heat dissipation Q engine can be estimated through its thermal efficiency and fuel consumption rate m f and the low calorific value Q LHV of the fuel. The formula is Q engine =(1 - η)m f Q LHV . For example, for an internal combustion engine with a thermal efficiency of 35%, a fuel consumption rate of 60 kg per hour, and a low calorific value of the fuel of 42000 kJ / kg, the heat dissipation Q engine of this internal combustion engine per hour = a×0.35×60×42000 = 882000akJ / h. Among them, a is a coefficient, and a can be a value between 10% - 20%, or it can be other values. The embodiments of the present application do not specifically limit a. Exemplarily, a = 15%, Q engine = 0.15×0.35×60×42000 = 132300kJ / h.

[0068] The generator and other auxiliary devices will also generate heat, which can be estimated through the power of the device and the heat dissipation coefficient. Assume the power of the generator is P generator , and the heat dissipation coefficient is k generator , then the heat dissipation Q generator of the generator = k generator P generator . If the power of the generator is 100kW and the heat dissipation coefficient is 0.05, then the heat dissipation Q generator of the generator = 0.05×100×3600 = 18000kJ / h (converting the power unit from kW to kJ / h, 1kW = 3600kJ / h).

[0069] The total heat dissipation Q total in the engine room is the sum of the heat dissipations of all devices, that is, Q total = n(Q engine +Q generator ). Among them, n is the quantity of the generator sets corresponding.

[0070] Step S103: Determine at least one installable position in the microgrid nacelle according to the corresponding position layout of the generator set.

[0071] Specifically, the electronic device can determine the space occupancy of the generator set according to its specific position in the nacelle. For example, if the generator sets are arranged side by side, a continuous space area will be formed along the arrangement direction around them; if they are arranged in series, the availability of the space in the front, back, and both sides is different. By accurately measuring the length, width, and height dimensions of the generator set, clarify its coordinate range in the nacelle coordinate system (assuming the lower left corner of the nacelle is the origin, the length direction is the x-axis, the width direction is the y-axis, and the height direction is the z-axis). For example, the lower left corner coordinates of a certain generator set are (x1, y1, z1), and the upper right corner coordinates are (x2, y2, z2), so as to determine the actual occupied space volume V = (x2 - x1) × (y2 - y1) × (z2 - z1).

[0072] Then, the electronic device considers the influence of the air flow direction and temperature distribution generated during the operation of the generator set on the surrounding space. Generally speaking, the temperature on the exhaust side of the internal combustion engine is high, and a hot air flow rising area will be formed. When installing equipment near this area, the heat tolerance of the equipment needs to be considered. At the same time, the flow path of the air flow around the generator set will change due to different layouts. For example, when arranged side by side, the air flow may form a parallel channel between the units, and when arranged in series, a tortuous air flow path may be generated. Through CFD simulation or actual measurement, clarify the air flow velocity and temperature field at different positions, providing a basis for determining the subsequent installable positions.

[0073] For the equipment to be installed, such as fans, air vents, control cabinets, etc., accurately master their external dimensions. Taking a fan as an example, if it is an axial flow fan, it is necessary to understand its diameter D and length L; if it is a centrifugal fan, pay attention to the length, width, and height dimensions of its volute. When determining the installable position, ensure that the position can accommodate the overall shape of the equipment, and leave a certain safety gap around the equipment to avoid overcrowding after installation, which may affect normal operation and maintenance. For example, for a fan with a diameter of 1m, the horizontal space diameter of its installation position should be at least greater than 1.2m (leaving a 0.2m safety gap).

[0074] To ensure the long-term stable operation of the equipment and facilitate daily maintenance and repair, sufficient maintenance space needs to be reserved. For the generator set, at least 0.8 - 1m of space should be reserved around it to facilitate operations such as component replacement and equipment maintenance by staff. A certain space also needs to be left around the fan and air vent. For example, 0.5m of space can be reserved around the fan for cleaning the fan blades and maintaining the motor; 0.3m of space is reserved around the air vent to facilitate cleaning the dust in the air vent and checking the air vent opening and closing device. When determining the installable position, take these maintenance space requirements into consideration to ensure that the selected position will not make equipment maintenance difficult.

[0075] In addition, there are a large number of electrical equipment in the microgrid engine room. When determining the installable positions, the electrical safety distance specifications must be strictly followed. For example, a certain safety distance must be maintained between high-voltage electrical equipment and other equipment or metal structures to prevent safety accidents caused by electrical discharges. For 10 kV high-voltage equipment, the minimum safety distance from the surrounding metal structures is generally not less than 0.7 m. When determining the installable positions, it is necessary to ensure that the distance between the selected positions and the electrical equipment meets the safety requirements corresponding to the voltage level.

[0076] Finally, the electronic equipment divides the internal space of the engine room into a grid. Taking grids of a certain size (such as 0.1 m × 0.1 m × 0.1 m) as units, each grid is evaluated. According to the factors such as the layout of the generator set positions, equipment installation and maintenance requirements, safety and specification requirements analyzed above, it is judged whether each grid meets the installable conditions. The grids that meet the conditions are potential installable positions. In this way, all possible installable positions in the engine room can be found comprehensively and systematically, forming a set of installable positions.

[0077] Step S104, based on each installable position and the heat to be dissipated, determine at least one target cooling device and the target installation positions corresponding to each target cooling device.

[0078] Specifically, for each installable position, the electronic equipment can analyze the surrounding air flow conditions, including air flow speed, direction, and whether there are air flow dead ends, etc. For example, the positions near the engine room ventilation openings usually have a relatively large air flow speed, which is beneficial to heat exchange, while the positions in the corners of the engine room may have poor air flow. Then, determine the heat dissipation of each heating device in the engine room and calculate the heat to be dissipated. According to the heat to be dissipated and the heat dissipation conditions of the installable positions, select cooling devices of appropriate types and specifications. Common cooling devices include axial fans, centrifugal fans, air conditioning systems, heat pipe radiators, etc.

[0079] If the heat to be dissipated is large and the engine room space permits, an axial fan or a centrifugal fan with a large air volume can be selected for forced ventilation and heat dissipation. For example, for a large microgrid engine room with a total heat dissipation of 100 kW, according to experience, an axial fan with an air volume of 5000 - 10000 m3 / h can be selected to meet the heat dissipation requirements.

[0080] If there are strict requirements for environmental temperature and humidity, or there are dust-sensitive devices in the engine room, then an air conditioning system can be considered for cooling. For some high-precision and high-heat-generating electronic devices, heat pipe radiators may be a better choice because they have efficient heat dissipation and good isothermal properties.

[0081] Finally, for the selected cooling device, based on the evaluation results of the installable positions, the electronic device preferentially selects the position with the best heat dissipation conditions as the target installation position. For example, install the fan at a position close to the heat-generating device with smooth air flow to maximize the heat dissipation effect.

[0082] This step will be introduced in detail below.

[0083] The cooling device layout method provided by the embodiment of the present application obtains the quantity and position layout corresponding to the generator set in the microgrid nacelle, thereby providing solid basic information for subsequent heat dissipation planning and equipment layout, and avoiding blind design and operation. Based on the quantity of the generator sets, determine the heat to be dissipated in the microgrid nacelle, so that the design of the heat dissipation system can be accurately matched with the actual demand. Avoid overheating and damage of the unit caused by insufficient heat dissipation capacity, or waste of resources and increase of costs caused by excessive heat dissipation capacity. According to the position layout corresponding to the generator sets, determine at least one installable position in the microgrid nacelle. Thereby, the internal space of the microgrid nacelle can be fully utilized. Avoid unreasonable installation positions, resulting in idle space or crowded equipment installation, improve the effective utilization rate of the nacelle space, and create convenient conditions for subsequent equipment installation and maintenance. In addition, reasonably selecting the installable position helps to optimize the air flow organization in the microgrid nacelle. Installing the heat dissipation device at a suitable position can guide the cooling air to flow through the heat-generating parts of the generator set more efficiently, enhance the heat dissipation effect, and improve the overall performance of the heat dissipation system. Based on each installable position and the heat to be dissipated, determine at least one target cooling device and the target installation position corresponding to each target cooling device. By comprehensively considering the installable position and the heat to be dissipated, it is possible to accurately select the target cooling device with the appropriate type, specification and quantity, and determine its best installation position. This precise configuration ensures that the heat dissipation requirements of each area can be met. Through precise analysis, select the cooling device combination and installation plan with the highest cost performance to avoid over-investment. On the premise of meeting the heat dissipation requirements, select the appropriate equipment and installation method to reduce the equipment procurement cost, installation cost and subsequent operation and maintenance cost, and improve the economic benefits of the microgrid heat dissipation system. The reasonably configured target cooling device and the accurate target installation position can ensure uniform and stable temperature in the microgrid nacelle. Effectively avoid local overheating or overcooling phenomena, reduce the damage caused by temperature fluctuations to the generator set and other equipment, improve the reliability and stability of the entire microgrid system, and ensure the continuity of power supply. Thus, the problem of high temperature in the multi-unit microgrid nacelle is solved.

[0084] In this embodiment, a cooling device layout method is provided, which can be used for the above-mentioned electronic device. Figure 2 It is a flowchart of the cooling device layout method according to the embodiment of the present invention, as Figure 2 shown. This process includes the following steps:

[0085] Step S201, obtain the number and location layout of the generator sets in the microgrid engine room.

[0086] For this step, please refer to the introduction of step S101 above and will not be elaborated here.

[0087] Step S202, determine the heat to be dissipated in the microgrid engine room based on the number of the generator sets.

[0088] For this step, please refer to the introduction of step S102 above and will not be elaborated here.

[0089] Step S203, determine at least one installable position in the microgrid engine room according to the location layout of the generator sets.

[0090] For this step, please refer to the introduction of step S103 above and will not be elaborated here.

[0091] Step S204, determine at least one target cooling device and the corresponding target installation positions of each target cooling device based on each installable position and the heat to be dissipated.

[0092] Specifically, the target cooling device is the target fan and the target air outlet. The above step S204 may include the following steps:

[0093] Step S2041, calculate the air volume of the fan according to the heat to be dissipated.

[0094] Specifically, according to the thermodynamic principle, the air volume V of the fan fan (unit: m3 / h) can be calculated from the total heat dissipation Q in the engine room total , the specific heat capacity c of the air p (generally taken as 1.005 kJ / (kg·K)) and the allowable air temperature rise ΔT. The air density ρ (about 1.2 kg / m under standard conditions 3 ) is also involved in the calculation. The formula is Assume that the allowable air temperature rise is 20K, then the air volume of the fan If Q total = 150000 kJ / h, then

[0095] Step S2042, determine the target installation positions of at least one target fan according to the air volume of the fan and each installable position.

[0096] Specifically, the above step S2042 may include the following steps:

[0097] Step a1, determine the number of the target fans according to the air volume of the fan and the attribute information of the target fan.

[0098] Specifically, different types of fans, such as axial fans and centrifugal fans, have significant differences in performance. Axial fans usually have the characteristics of large flow rate and relatively low air pressure, and are suitable for occasions that require a large amount of air volume and relatively small ventilation resistance. For example, they can play a good role in an environment where the cabin space is relatively open and the air flow path is short. Centrifugal fans, on the other hand, have a higher air pressure and can overcome greater ventilation resistance, and are suitable for situations where the ventilation duct is long or the air pressure requirement is high. Before determining the number of fans, the electronic device can determine which type of fan is more suitable according to the actual ventilation conditions in the cabin. For example, if the ventilation duct in the cabin is complex and long, choosing a centrifugal fan may better ensure that the air flow can reach each area smoothly. In addition, for the cabin ventilation system, there are frictional resistance (the resistance generated by the friction between the air and the wall surface when the air flows in the duct or space) and local resistance (such as the resistance generated when the air flows through components such as elbows and valves). The air pressure of the fan needs to be sufficient to overcome these resistances to ensure that there is enough air volume to reach the designated position. In actual applications, it is necessary to calculate the total system resistance according to factors such as the length of the ventilation path, the material and roughness of the duct, and the number of components, and then compare it with the air pressure parameters of the target fan to determine whether it meets the requirements. For example, after calculation, the total resistance of a certain cabin ventilation system is 500 Pa, and the rated air pressure of the selected centrifugal fan needs to be greater than 500 Pa to ensure the normal operation of the fan. The power of the fan is directly related to its energy consumption and operating cost. The greater the power, the more electric energy the fan consumes per unit time. When determining the number of fans, not only should it be considered whether the fans can meet the air volume and air pressure requirements, but also the energy consumption cost should be taken into account. Generally speaking, on the premise of meeting the heat dissipation requirements, a combination of fans with smaller power should be selected as much as possible to achieve the purpose of energy conservation. For example, if two different power fans can both meet the air volume requirements, give priority to choosing the fan with smaller power to reduce the long-term operating cost. At the same time, the operating efficiency of the fan also needs to be considered. High-efficiency fans can provide a larger air volume at the same power, which can further optimize the energy consumption.

[0099] Based on the attribute information corresponding to the target fan, determine the air volume corresponding to the target fan. Divide the air volume of the fan by the air volume corresponding to the target fan to obtain the number of target fans.

[0100] Step a2, obtain the position with the highest temperature in the microgrid cabin.

[0101] Specifically, the electronic device can determine that the temperature on the exhaust side of the internal combustion engine is the highest based on preset common sense knowledge, and determine the exhaust side of the internal combustion engine as the position with the highest temperature in the microgrid cabin.

[0102] Step a3, from all the installable positions, determine the target installation position that is closest to the position with the highest temperature in the microgrid cabin and corresponds to the number of target fans.

[0103] Specifically, for each installable position, the electronic device can determine the straight-line distance or the actual path distance between each installable position and the position with the highest temperature in the microgrid nacelle. Sort all the installable positions in ascending order of the distance to the position with the highest temperature. When the number of target fans is 1, directly select the installable position closest to the position with the highest temperature as the target installation position. When the number of target fans is greater than 1, sequentially select several installable positions closest to the position with the highest temperature as the target installation positions. For example, when the number of target fans is 3, select the first 3 installable positions with the closest distances in the sorting as the target installation positions. At the same time, it is also necessary to consider the rationality of the layout between these positions, avoid the fans being too concentrated or dispersed, and ensure that the nacelle can be evenly and effectively cooled, forming a reasonable air flow organization to improve the cooling efficiency.

[0104] Step S2043, calculate the total area corresponding to the air inlet and outlet according to the fan air volume and the engine intake air volume.

[0105] Specifically, the engine intake air volume V engine-air is an important parameter, which is related to factors such as the power and speed of the engine. For example, the intake air volume of a certain engine under rated conditions is 3000 m 3 / h. The calculation of the air inlet and outlet area A let needs to consider the fan air volume V fan and the engine intake air volume V engine-air . Assuming that the air inlet and outlet wind speed v let is within a reasonable range (such as 5 - 10 m / s), to ensure sufficient intake air volume and good air flow distribution, the air inlet and outlet area A let can be calculated by the formula . If V fan = 6000 m 3 / h, V engine-air = 3000 m 3 / h, v let = 8 m / s, then If multiple air inlets are designed, the total area can be reasonably distributed to each air inlet according to the actual layout.

[0106] Step S2044, calculate the target installation positions corresponding to at least one target air outlet based on the target installation positions corresponding to each target fan and the total area corresponding to the air inlet and outlet.

[0107] Specifically, the above step S2044 can include the following steps:

[0108] Step b1, based on the equal-volume requirement of the flow channel, calculate the target installation positions corresponding to at least one target air outlet according to the target installation positions corresponding to each target fan and the total area corresponding to the air inlet and outlet.

[0109] Specifically, the equal - volume requirement for the flow channels means that the flow channels in different parts maintain equal volume or satisfy specific volume relationships under certain conditions.

[0110] Specifically, the above - mentioned step b1 can include the following steps:

[0111] Step b11, based on the equal - volume requirement of the flow channels, calculate at least one candidate solution according to the target installation positions corresponding to each target fan and the total area corresponding to the air inlets and outlets.

[0112] Among them, each candidate solution includes the candidate installation positions corresponding to at least one candidate air inlet and outlet.

[0113] Specifically, the electronic device can, according to the preset priority requirements, ensure that the center line of the fan air outlet does not coincide with the center line of the candidate air inlet and outlet, and the distance L2 between the two center lines is greater than the size of the air outlet. As Figure 3 shown, it is a schematic diagram of the definition of the distance between the fan air outlets. If it is a square air outlet with side length a, then L2 > a; if it is a circular air outlet with diameter d, then L2 > d. This limitation aims to optimize the air - flow organization, prevent the energy loss and local turbulence caused by the direct impact of the air flow, and affect the heat - dissipation effect. For example, when the air - outlet speed of the fan is high, if it is directly opposite to the air outlet, the high - speed air flow may form a strong vortex near the air outlet, resulting in the ineffective diffusion of the air flow to the entire engine room.

[0114] For the flow channels from the fan to the air inlets and outlets, they need to satisfy equal volume or specific volume relationships. Assume that the volume of the flow channel connected to fan i is Vi, the length of the flow channel from fan i to candidate air inlet and outlet j is Lij, and the cross - sectional area of this flow channel is Aij, then Vi = Aij×Lij. In a multi - fan and multi - air - inlet - outlet system, it is necessary to ensure that the volumes of each flow channel satisfy a certain balance relationship, such as V1 = V2 =... = Vn (ideally, the volumes of each flow channel are equal, and the ratio can be adjusted according to the heat - dissipation requirements in practice), so as to achieve uniform air - flow distribution and avoid excessive or insufficient air volume in local areas.

[0115] From the perspective of meeting the total area A of the air inlets and outlets, try different combinations of the number and size of the air outlets. For example, if considering a square air inlet, start with setting 1 large - size air inlet (the area of the air inlet is Ain), and gradually increase the number of air inlets, such as setting 2 air inlets with an area of 2Ain, 3 air inlets with an area of 3Ain, etc., while ensuring that the size of each air outlet meets the layout restrictions with the fan. For circular air inlets, similarly, different combinations can be achieved by changing the diameter and the number.

[0116] For each combination of the number and size of air vents, starting from the position of the fan, calculate the installation positions of the candidate air inlets and outlets according to the equal-volume requirements of the flow channels and the layout restrictions. Taking fan i as an example, in the surrounding space, at intervals greater than the size of the air vent, according to the flow channel volume formula Vi = Aij × Lij, try different Lij values (i.e., the distance from the fan to the air vent), so as to obtain the corresponding Aij values (the cross-sectional area of the flow channel), and then determine the possible installation positions of the air vents. For example, given the rated air volume Qi of fan i, assuming that the air velocity v is within a reasonable range (such as 3 - 8 m / s), Si-j can be initially estimated from Qi = Aij × v, and then combined with the relationship between Li-j and Si-j, the coordinates (xj, yj, zj) of the candidate air inlet and outlet j are determined in the space under the premise of meeting the layout restrictions.

[0117] Integrate different combinations of the number and size of air vents and their corresponding candidate installation positions to form multiple candidate solutions. Each candidate solution includes the candidate installation positions corresponding to at least one candidate air inlet and outlet, as well as the corresponding layout relationship between the fan and the air vent, while meeting the equal-volume requirements of the flow channels and the layout restriction of avoiding the fan facing the air vent directly. For example, candidate solution 1 may include 2 square air inlets with side length a1, and their candidate installation positions are (x11, y11, z11) and (x12, y12, z12) respectively, and 3 circular air outlets with diameter d1, and the candidate installation positions are (x21, y21, z21), (x22, y22, z22) and (x23, y23, z23) respectively, and the volume of each flow channel meets the design requirements.

[0118] Exemplarily, taking Figure 3 as an example, the distance L between the fan and the air vent is L = L1 + L2, and the volume of the flow channel from the fan to the air vent is equal to the windward area A of the air vent multiplied by the distance L, that is, the volume V = A * L.

[0119] Exemplarily, Figure 4 and Figure 5 for the layout of two units in Figure 4 , in Figure 5 , the two units are arranged side by side, and in

[0120] Assume that in a certain design, the distance from fan 1 to air outlet 1 is L11 = 2m, the distance from fan 1 to air outlet 2 is L12 = 3m, the distance from fan 2 to air outlet 1 is L21 = 2.5m, the distance from fan 2 to air outlet 2 is L22 = 3.5m, the frontal area of air outlet 1 is A1 = 0.1m2, and the frontal area of air outlet 2 is A2 = 0.15m 2 , the windward area of tuyere 3 A3=0.1m 2 Substitute the left side of the flow channel equal volume formula:

[0121] A1L11+A2L12+A3L13=0.1×2+0.15×3+0.1×0=0.65m 3 (Assume that the air outlet 3 has no direct connection with the fan 1, L13 = 0).

[0122] Substitute the right side: A1L21+A2L22+A3L23=0.1×2.5+0.15×3.5+0.1×0=0.775m 3 (Assume that tuyere 3 has no direct connection with fan 2, L23=0) At this time, it is found that the two sides are not equal, and the tuyere area or distance needs to be adjusted, such as appropriately increasing A1 to 0.12m 2 , recalculate the left side: 0.12×2+0.15×3+0.1×0=0.69m 3 , and then adjust other parameters until the volume requirements of the flow channel are met to ensure uniform wind speed in the cabin and meet cooling needs.

[0123] In step b12, for each candidate solution, CFD simulation calculations are performed based on the candidate solution, each target wind turbine, and the target installation position corresponding to each target wind turbine to obtain the candidate wind speed of each candidate air inlet and outlet corresponding to the candidate solution, the first average wind speed corresponding to each candidate air inlet and outlet, and the second average wind speed at the highest temperature position in the microgrid cabin.

[0124] Specifically, the electronic equipment establishes an accurate three-dimensional geometric model in the CFD software based on the actual size of the microgrid nacelle, the target installation position of each target wind turbine, and the position and shape of the candidate air inlets and outlets. Discretizing the geometric model into a large number of tiny grid cells is the basis of CFD calculations. The quality and density of the grid have an important impact on the accuracy and stability of the calculation results. In key areas such as the target wind turbine, air inlets and outlets, and the highest temperature position, the grid needs to be encrypted to more accurately capture the changes in airflow. For example, near the wind turbine outlet, due to the drastic changes in airflow velocity, tetrahedral or hexahedral grids can be used for fine division to ensure that the acceleration and turning of the airflow can be accurately calculated.

[0125] According to the attribute information of the target fan, such as rated air volume, air pressure, blade shape, etc., set the boundary conditions of the fan in the CFD model. Usually, set the fan outlet as the velocity inlet boundary condition, calculate the outlet wind speed according to the rated air volume of the fan, and specify the direction of the air flow. At the same time, considering the flow loss and pressure change inside the fan, set appropriate pressure outlet or pressure far-field boundary conditions. For the candidate inlet and outlet, set the boundary conditions according to its design requirements and actual operating conditions. If it is an inlet, it can be set as a mass flow rate inlet or a velocity inlet, and determine the inlet wind speed and flow rate according to the required ventilation volume. The outlet is usually set as a pressure outlet, and determine the outlet pressure value considering the pressure difference inside and outside the nacelle and the environmental conditions of the air flow discharge. The inner wall surface of the microgrid nacelle and the surface of the internal equipment are set as no-slip wall boundary conditions, that is, the velocity of the air flow on the wall surface is zero. At the same time, according to the material properties and heat dissipation of the wall surface, set the thermal boundary conditions of the wall surface, such as specifying the wall temperature or heat flux density, to simulate the heat transfer process inside the nacelle.

[0126] Since the air flow inside the microgrid nacelle is usually in a turbulent state, the electronic device selects an appropriate turbulence model to describe the turbulent characteristics of the air flow. The turbulence model can be the k-ε model, k-ω model, SST k-ω model, etc. For complex flow situations, such as the existence of separated flow, vortices, etc., the SST k-ω model can usually provide more accurate calculation results because it has better performance in the near-wall region and the far-field region.

[0127] Then, the electronic device selects a solver for the preset problem type, such as a pressure-based solver or a density-based solver. For incompressible or low Mach number flows, a pressure-based solver is usually more applicable. During the solution process, it is necessary to set appropriate parameters such as relaxation factors, iteration steps, and convergence criteria to ensure the stability and convergence of the calculation. Generally speaking, adjust the relaxation factor to control the variable update speed during the iteration process. When the residual drops to a certain level (such as less than 10^-6) and the change of physical quantities meets the convergence criteria, it is considered that the calculation reaches convergence.

[0128] Before starting the formal calculation, initialize the computational domain, usually by specifying the initial velocity field, pressure field, temperature field, etc. The choice of initial values can be based on experience or simple theoretical estimates. For example, assume that the initial air velocity is zero, the pressure is the ambient pressure, and the temperature is the average initial temperature inside the cabin. Then, start the solver and begin the iterative calculation. In each iteration step, update physical quantities such as the velocity field, pressure field, and temperature field according to the governing equations (such as the continuity equation, momentum equation, and energy equation). Through continuous iteration, gradually approach the true flow field distribution. During the calculation process, closely monitor the changes in the residual curve and physical quantities to ensure the stability and convergence of the calculation. If abnormal fluctuations or non-convergence of the residuals are found, it is necessary to analyze the reasons in a timely manner, such as checking the boundary condition settings, grid quality, or solver parameters, and make corresponding adjustments.

[0129] For unsteady problems, it is necessary to select an appropriate time step for the calculation. The size of the time step directly affects the calculation accuracy and efficiency. Generally speaking, the time step should be determined according to the characteristic time scale of the flow, such as estimating based on the rotation period of the fan or the transmission time of the air flow in the flow channel. On the premise of ensuring the calculation stability, try to select a larger time step to improve the calculation efficiency, but at the same time ensure that the dynamic changes of the air flow can be accurately captured.

[0130] After the CFD calculation converges, extract the velocity data at the candidate inlet and outlet openings from the calculation results. The magnitude and direction of the air flow velocity can be directly obtained by setting monitoring points or surfaces on the inlet and outlet cross-sections. For complex inlet and outlet shapes, it may be necessary to average or weighted average the data of multiple monitoring points to obtain the candidate wind speed representing the entire inlet and outlet.

[0131] Then, the electronic device calculates the first average wind speed corresponding to each candidate inlet and outlet according to the velocity data at each candidate inlet and outlet. In addition, the electronic device determines the specific coordinates or area of the position with the highest temperature in the CFD model, and then extracts the velocity data of the grid cells within a certain range near this position. Similarly, use the averaging method to calculate the second average wind speed at this position. For example, a small volume area centered on the position with the highest temperature can be selected for velocity averaging of the grid cells. The second average wind speed obtained in this way can reflect the average flow condition of the air flow at the position with the highest temperature, which is of great significance for evaluating the heat dissipation effect at this position.

[0132] Step b13, according to the candidate wind speeds, the first average wind speeds, and the second average wind speeds corresponding to each candidate solution, screen each candidate solution to obtain at least one backup solution.

[0133] Specifically, the electronic device may compare the candidate wind speed corresponding to each candidate solution with a preset candidate wind speed threshold, compare the first average wind speed with a preset first average wind speed threshold, and compare the second average wind speed with a preset second average wind speed threshold.

[0134] Then, candidate solutions whose candidate wind speed is greater than or equal to a preset candidate wind speed threshold, and / or whose first average wind speed is less than or equal to a preset first average wind speed threshold, and / or whose second average wind speed is less than or equal to a preset second average wind speed threshold are deleted to obtain at least one backup solution.

[0135] The preset candidate wind speed threshold value may be 25 m / s, 26 m / s, or other values; the preset first average wind speed threshold value may be 0.5 m / s, 0.6 m / s, or other values; and the preset second average wind speed threshold value may be 2 m / s, 2.6 m / s, or other values. The embodiments of the present application do not specifically limit the preset candidate wind speed threshold value, the preset first average wind speed threshold value, and the preset second average wind speed threshold value.

[0136] For example, the first average wind speed corresponding to each candidate air inlet and outlet is required to be greater than 0.5m / s. If it is too small, it means that there is no obvious inlet and outlet air at the air outlet, and it can be considered for cancellation. Therefore, the electronic device can delete the candidate solution with the first average wind speed requirement less than or equal to 0.5m / s. At the same time, the maximum candidate wind speed of the candidate air inlet and outlet is required to be less than 25m / s. Excessive wind speed means that there is a lot of turbulence at the air outlet, causing blockage. Therefore, the electronic device can delete the candidate solution with a candidate wind speed greater than or equal to 25m / s. In addition, the second average wind speed at the highest temperature position in the microgrid cabin is required to be greater than 2m / s. If it is too small, it cannot effectively take away the radiated heat, causing local excessive temperature to form heat damage. Therefore, the electronic device deletes the candidate solution with the second average wind speed less than or equal to 2m / s, thereby obtaining at least one backup solution.

[0137] Step b14: Determine the target solution based on the backup solutions.

[0138] The target solution includes a target installation position corresponding to at least one target air outlet.

[0139] Specifically, the above step b14 may include the following steps:

[0140] Step b141: Calculate the objective function value corresponding to each backup plan based on the objective function.

[0141] Specifically, the objective function is:

[0142]

[0143] Among them, ω1 and ω2 are weight coefficients, and ω1 + ω2 = 1, 0 ≤ w1, w2 ≤ 1. T i represents the temperature at the i-th monitoring point in the microgrid nacelle, and the total number of monitoring points is n; T max = max(T), T i represents the wind speed at the j-th monitoring point corresponding to the position with the highest temperature in the microgrid nacelle, and the total number of monitoring points is m.

[0144] Specifically, the electronic device can obtain the highest temperature and the average temperature corresponding to the position with the highest temperature in the microgrid nacelle based on CFD simulation calculations, and calculate the second average wind speed at the position with the highest temperature in the microgrid nacelle. Then, based on minimizing the temperature difference between the highest temperature and the average temperature corresponding to the position with the highest temperature in the microgrid nacelle, and maximizing the second average wind speed at the position with the highest temperature in the microgrid nacelle as the objective function, calculate the objective function values corresponding to each alternative plan.

[0145] Step b142, based on the objective function values corresponding to each alternative plan, determine the target plan with the largest objective function value from each alternative plan.

[0146] Specifically, the electronic device compares the objective function values corresponding to each alternative plan and determines the target plan with the largest objective function value from each alternative plan.

[0147] The cooling equipment layout method provided by the embodiments of the present application calculates the air volume of the fan according to the heat to be dissipated. Thereby, it can ensure that the cooling capacity provided by the fan perfectly matches the actual heat dissipation requirements. Avoid insufficient heat dissipation caused by insufficient air volume, resulting in overheating and damage of equipment, and affecting the normal operation of the microgrid; also prevent excessive air volume from causing energy waste and increasing operating costs. Determine the number of target fans according to the air volume of the fan and the attribute information corresponding to the target fan. The air volume of the fan is directly related to its heat dissipation capacity, and the attribute information of the target fan, such as fan type (axial flow, centrifugal, etc.), wind pressure characteristics, power size, etc., determines the operating efficiency of the fan under specific working conditions. Considering these factors comprehensively, the required number of fans can be accurately determined according to the actual heat dissipation requirements of the engine room. For example, in an engine room environment with a spacious space and a long ventilation path, centrifugal fans are more suitable due to their higher wind pressure. Combining the required air volume, the appropriate number of fans can be obtained through accurate calculation, avoiding poor heat dissipation caused by insufficient fan quantity or resource waste and increased energy consumption caused by excessive quantity. In addition, accurately determining the number of fans can avoid over-configuration or under-configuration. Too many fans will cause a significant increase in equipment procurement, installation, and energy consumption costs, and may also affect the normal distribution of air flow due to crowded space; insufficient fan quantity cannot meet the heat dissipation requirements and endanger the safe operation of the equipment. By scientific calculation, determining the number of fans based on the air volume of the fan and the overall heat dissipation load of the engine room can optimize resource utilization to the greatest extent while meeting the heat dissipation requirements, reduce the comprehensive cost input of the system, and improve the economic benefits of the microgrid operation. Obtain the position with the highest temperature in the microgrid engine room; determine the target installation position closest to the position with the highest temperature in the microgrid engine room corresponding to the number of target fans from all installable positions. Thereby, the cooling air can reach the heating area along the shortest path, significantly reducing the loss of heat during transmission and greatly improving the heat dissipation efficiency. In addition, shortening the distance between the fan and the high-temperature area means that the fan does not need to consume too much energy to transport the cooling air over a long distance. On the premise of meeting the heat dissipation requirements, the fan can operate at a lower power state, thereby reducing the energy consumption of the entire heat dissipation system.

[0148] Then, according to the air volume of the fan and the intake air volume of the engine, calculate the total area corresponding to the air inlet and outlet. Thus, it can ensure that the intake air volume and exhaust air volume of the ventilation system reach balance. On the one hand, it meets the intake air volume required for the normal operation of the engine, ensures sufficient combustion, and improves the engine efficiency; on the other hand, it ensures sufficient exhaust air volume to timely discharge the heat and waste gas in the microgrid nacelle and maintain a good working environment. For example, if the air volume of the fan is V1 cubic meters per hour and the intake air volume of the engine is V2 cubic meters per hour, calculate the appropriate total area of the air inlet and outlet through calculation to make the ventilation system operate stably. Based on the equal volume requirement of the flow channel, calculate at least one candidate solution according to the target installation position corresponding to each target fan and the total area corresponding to the air inlet and outlet. Thus, it can ensure that under the premise of meeting the basic ventilation and heat dissipation requirements, initially plan multiple possible installation position solutions for the air inlet and outlet. This provides a basis for subsequent fine optimization, avoids blindly selecting the position of the air inlet and outlet, ensures that each candidate solution has a certain rationality and feasibility, and theoretically can achieve the reasonable flow of cooling air in the microgrid nacelle. For each candidate solution, based on the candidate solution, each target fan, and the target installation position corresponding to each target fan, conduct CFD simulation calculations, which can accurately simulate the actual flow situation and temperature distribution of the air flow in the microgrid nacelle under different candidate solutions, obtain the candidate wind speed of each candidate air inlet and outlet corresponding to the candidate solution, the first average wind speed corresponding to each candidate air inlet and outlet, and the second average wind speed at the position with the highest temperature in the microgrid nacelle, ensuring the accuracy of the candidate wind speed of the obtained candidate air inlet and outlet, the first average wind speed corresponding to each candidate air inlet and outlet, and the second average wind speed at the position with the highest temperature in the microgrid nacelle. Then, according to the candidate wind speed, the first average wind speed, and the second average wind speed corresponding to each candidate solution, screen each candidate solution to obtain at least one backup solution. The screening process is based on quantitative wind speed data, avoiding the error of subjective judgment, ensuring that the selected backup solution can better meet the heat dissipation requirements of the nacelle theoretically, and improving the scientificity and accuracy of the solution selection. These backup solutions have better performance in ensuring the effective flow of cooling air and reducing the highest temperature in the microgrid nacelle, providing a more reliable selection range for finally determining the optimal solution. Based on the objective function, calculate the objective function value corresponding to each backup solution; based on the objective function value corresponding to each backup solution, determine the target solution with the largest objective function value from each backup solution. Thus, it can ensure that the finally selected solution achieves the optimal performance after comprehensively considering multiple factors. This method is data-driven and can objectively evaluate the advantages and disadvantages of each backup solution, avoiding the errors that may be brought by human subjective preferences and empirical judgments.Selecting the solution with the maximum objective function value means that, on the premise of meeting various design constraints and requirements, this solution can maximize the realization of the design objectives. For example, while ensuring good cooling effect, it can minimize energy consumption or cost, thereby improving the economy and reliability of the entire system, and providing a scientific and effective optimization method for the heat dissipation design of the engine room.

[0149] In this embodiment, a cooling equipment layout device is also provided. This device is used to implement the above-mentioned embodiments and preferred implementation manners, and those that have been described will not be repeated. As used hereinafter, the term "module" can be a combination of software and / or hardware that can achieve a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementation in hardware, or a combination of software and hardware is also possible and contemplated.

[0150] This embodiment provides a cooling equipment layout device, as Figure 6 shown, including:

[0151] An acquisition module 301, configured to acquire the number and location layout corresponding to the generator sets in the microgrid engine room;

[0152] A first determination module 302, configured to determine the heat to be dissipated in the microgrid engine room based on the number corresponding to the generator sets;

[0153] A second determination module 303, configured to determine at least one installable position in the microgrid engine room according to the location layout corresponding to the generator sets;

[0154] A third determination module 304, configured to determine at least one target cooling equipment and the target installation positions corresponding to each target cooling equipment based on each installable position and the heat to be dissipated.

[0155] In some alternative implementation manners, the target cooling equipment is a target fan and a target air outlet. The third determination module 304 is specifically configured to calculate the air volume of the fan according to the heat to be dissipated; determine the target installation positions corresponding to at least one target fan according to the air volume of the fan and each installable position; calculate the total area corresponding to the air inlet and outlet according to the air volume of the fan and the engine intake air volume; calculate the target installation positions corresponding to at least one target air outlet based on the target installation positions corresponding to each target fan and the total area corresponding to the air inlet and outlet.

[0156] In some alternative implementation manners, the third determination module 304 is specifically configured to determine the number of target fans according to the air volume of the fan and the attribute information corresponding to the target fan; obtain the position with the highest temperature in the microgrid engine room; determine, from each installable position, the target installation position that is closest to the position with the highest temperature in the microgrid engine room and corresponds to the number of target fans.

[0157] In some alternative embodiments, the third determination module 304 is specifically configured to calculate the target installation positions of at least one target air outlet based on the equal - volume requirement of the flow channel, according to the target installation positions corresponding to each target fan and the total area corresponding to the air inlets and outlets.

[0158] In some alternative embodiments, the third determination module 304 is specifically configured to calculate at least one candidate solution based on the equal - volume requirement of the flow channel, according to the target installation positions corresponding to each target fan and the total area corresponding to the air inlets and outlets; each candidate solution includes the candidate installation positions corresponding to at least one candidate air inlet and outlet; for each candidate solution, based on the candidate solution, each target fan, and the target installation positions corresponding to each target fan, perform CFD simulation calculations to obtain the candidate wind speeds of each candidate air inlet and outlet corresponding to the candidate solution, the first average wind speed of each candidate air inlet and outlet corresponding to the candidate solution, and the second average wind speed at the position with the highest temperature in the micro - grid nacelle; screen each candidate solution according to the candidate wind speeds, the first average wind speed, and the second average wind speed corresponding to each candidate solution to obtain at least one alternative solution; based on each alternative solution, determine the target solution; the target solution includes the target installation positions corresponding to at least one target air outlet.

[0159] In some alternative embodiments, the third determination module 304 is specifically configured to calculate the objective - function values corresponding to each alternative solution based on the objective function; based on the objective - function values corresponding to each alternative solution, determine the target solution with the largest objective - function value from each alternative solution.

[0160] In some alternative embodiments, the objective function is:

[0161]

[0162] where ω1 and ω2 are weight coefficients, and ω1 + ω2 = 1, 0 ≤ ω1, ω2 ≤ 1, T i represents the temperature at the i - th monitoring point in the micro - grid nacelle, and the total number of monitoring points is n; T max = max(T), T i represents the wind speed at the j - th monitoring point corresponding to the position with the highest temperature in the micro - grid nacelle, and the total number of monitoring points is m.

[0163] The further functional descriptions of the above - mentioned various modules and units are the same as those in the corresponding above - mentioned embodiments, and will not be elaborated here.

[0164] The cooling device layout apparatus in this embodiment is presented in the form of functional units. Here, the unit refers to an ASIC (Application Specific Integrated Circuit) circuit, a processor and a memory that execute one or more software or fixed programs, and / or other devices that can provide the above functions.

[0165] An embodiment of the present invention further provides a computer device having the above Figure 6 shown cooling device layout apparatus.

[0166] Please refer to Figure 7 , Figure 7 which is a schematic structural diagram of a computer device provided by an alternative embodiment of the present invention. As Figure 7 shown, the computer device includes: one or more processors 10, a memory 20, and interfaces for connecting various components, including a high-speed interface and a low-speed interface. Each component communicates with each other using different buses and can be installed on a common motherboard or installed in other ways as needed. The processor can process instructions executed within the computer device, including instructions stored in the memory or on the memory to display graphical information of a GUI on an external input / output device (such as a display device coupled to the interface). In some alternative embodiments, if necessary, multiple processors and / or multiple buses can be used together with multiple memories and multiple memories. Similarly, multiple computer devices can be connected, and each device provides some necessary operations (such as a server array, a set of blade servers, or a multi-processor system). Figure 7 In

[0167] FIG. 1, a processor 10 is taken as an example.

[0168] The memory 20 stores instructions executable by at least one processor 10, so that the at least one processor 10 executes the method shown in the above embodiment.

[0169] The memory 20 may include a program storage area and a data storage area. Among them, the program storage area may store an operating system and application programs required for at least one function; the data storage area may store data created according to the use of the computer device, etc. In addition, the memory 20 may include a high-speed random access memory, and may also include a non-transitory memory, such as at least one magnetic disk storage device, a flash memory device, or other non-transitory solid-state storage devices. In some alternative embodiments, the memory 20 may optionally include a memory remotely provided with respect to the processor 10, and these remote memories may be connected to the computer device through a network. Examples of the above-mentioned network include but are not limited to the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0170] The memory 20 may include a volatile memory, such as a random access memory; the memory may also include a non-volatile memory, such as a flash memory, a hard disk, or a solid-state drive; the memory 20 may further include a combination of the above types of memories.

[0171] The computer device further includes an input device 30 and an output device 40. The processor 10, the memory 20, the input device 30, and the output device 40 may be connected through a bus or other means. Figure 7 Taking connection through a bus as an example.

[0172] The input device 30 can receive input digital or character information, and generate key signal inputs related to the user settings and function controls of the computer device, such as a touch screen, a keypad, a mouse, a trackpad, a touchpad, a pointing stick, one or more mouse buttons, a trackball, a joystick, etc. The output device 40 may include a display device, an auxiliary lighting device (e.g., an LED), and a haptic feedback device (e.g., a vibration motor), etc. The above-mentioned display device includes but is not limited to a liquid crystal display, a light-emitting diode, a display, and a plasma display. In some alternative embodiments, the display device may be a touch screen.

[0173] Embodiments of the present invention also provide a computer-readable storage medium. The method according to the embodiments of the present invention can be implemented in hardware, firmware, or be implemented as computer code that can be recorded on a storage medium, or be implemented as computer code that is originally stored in a remote storage medium or a non-transitory machine-readable storage medium and downloaded through a network and will be stored in a local storage medium, so that the methods described herein can be processed by such software stored on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only memory, a random access memory, a flash memory, a hard disk, or a solid-state drive, etc.; further, the storage medium can also include a combination of the above types of memories. It can be understood that a computer, a processor, a microprocessor controller, or programmable hardware includes a storage component that can store or receive software or computer code. When the software or computer code is accessed and executed by the computer, the processor, or the hardware, the methods shown in the above embodiments are implemented.

[0174] A part of the present invention can be applied as a computer program product, for example, computer program instructions. When executed by a computer, through the operation of the computer, the methods and / or technical solutions according to the present invention can be invoked or provided. Those skilled in the art should understand that the forms in which computer program instructions exist in a computer-readable medium include, but are not limited to, source files, executable files, installation package files, etc. Correspondingly, the ways in which computer program instructions are executed by a computer include, but are not limited to: the computer directly executes the instruction, or the computer compiles the instruction and then executes the corresponding compiled program, or the computer reads and executes the instruction, or the computer reads and installs the instruction and then executes the corresponding installed program. Herein, the computer-readable medium can be any available computer-readable storage medium or communication medium accessible by the computer.

[0175] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A method for cooling equipment layout, characterized in that, The method includes: Obtaining the number and location layout of the generator sets corresponding to the microgrid engine room; Determining the heat to be dissipated in the microgrid engine room based on the number of the corresponding generator sets; Determining at least one installable position in the microgrid engine room according to the location layout corresponding to the generator sets; Determining at least one target cooling device and the corresponding target installation positions of the target cooling devices based on each of the installable positions and the heat to be dissipated.

2. The method according to claim 1, wherein The target cooling devices are target fans and target air vents. The determining at least one target cooling device and the corresponding target installation positions of the target cooling devices based on each of the installable positions and the heat to be dissipated includes: Calculating the air volume of the fans according to the heat to be dissipated; Determining the target installation positions of at least one target fan according to the air volume of the fans and each of the installable positions; Calculating the total area corresponding to the air inlets and outlets according to the air volume of the fans and the air intake of the engine; Calculating the target installation positions of at least one target air vent based on the target installation positions of each of the target fans and the total area corresponding to the air inlets and outlets.

3. The method according to claim 2, wherein The determining the target installation positions of at least one target fan according to the air volume of the fans and each of the installable positions includes: Determining the number of the target fans according to the air volume of the fans and the attribute information corresponding to the target fans; Obtaining the position with the highest temperature in the microgrid engine room; Determining, from each of the installable positions, the target installation positions that are closest to the position with the highest temperature in the microgrid engine room and correspond to the number of the target fans.

4. The method according to claim 2, wherein The calculating the target installation positions of at least one target air vent based on the target installation positions of each of the target fans and the total area corresponding to the air inlets and outlets includes: Calculating the target installation positions of at least one target air vent based on the equal volume requirement of the flow channel, the target installation positions of each of the target fans, and the total area corresponding to the air inlets and outlets.

5. The method according to claim 4, wherein The calculating the target installation positions of at least one target air vent based on the equal volume requirement of the flow channel, the target installation positions of each of the target fans, and the total area corresponding to the air inlets and outlets includes: Calculating at least one candidate solution based on the equal volume requirement of the flow channel, the target installation positions of each of the target fans, and the total area corresponding to the air inlets and outlets; each candidate solution includes the candidate installation positions of at least one candidate air inlet and outlet; For each candidate solution, performing CFD simulation calculations based on the candidate solution, each of the target fans, and the target installation positions of each of the target fans to obtain the candidate wind speeds of the candidate air inlets and outlets corresponding to the candidate solution, the first average wind speed of the candidate air inlets and outlets corresponding to the candidate solution, and the second average wind speed of the position with the highest temperature in the microgrid engine room; Screening each candidate solution according to the candidate wind speeds, the first average wind speed, and the second average wind speed corresponding to each candidate solution to obtain at least one backup solution; Based on each of the alternative solutions, determine a target solution; the target solution includes target installation positions corresponding to at least one target air outlet.

6. The method according to claim 5, wherein The determining the target solution based on each of the alternative solutions includes: Calculating target function values corresponding to each of the alternative solutions based on a target function; Determining the target solution with the largest target function value from each of the alternative solutions based on the target function values corresponding to each of the alternative solutions.

7. The method according to claim 6, wherein The target function is: Among them, ω1 and ω2 are weight coefficients, and ω1 + ω2 = 1, 0 ≤ w1, w2 ≤ 1. T i represents the temperature at the i-th monitoring point in the microgrid nacelle, and the total number of monitoring points is n; T max = max(T), T i represents the wind speed at the j-th monitoring point corresponding to the position with the highest temperature in the microgrid nacelle, and the total number of monitoring points is m.

8. A cooling device layout apparatus, characterized in that, The device includes: An acquisition module, configured to acquire the number and position layout of the generator sets in the microgrid engine room; A first determination module, configured to determine the heat to be dissipated in the microgrid engine room based on the number of the generator sets; A second determination module, configured to determine at least one installable position in the microgrid engine room according to the position layout of the generator sets; A third determination module, configured to determine at least one target cooling device and target installation positions corresponding to each of the target cooling devices based on each of the installable positions and the heat to be dissipated.

9. A computer device, characterized in that, including: A memory and a processor, the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the computer instructions to execute the cooling device layout method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, Computer instructions are stored on the computer-readable storage medium, and the computer instructions are used to cause a computer to execute the cooling device layout method according to any one of claims 1 to 7.

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