Electric equipment heating and dehumidification control method and control terminal

Abstract

The application provides an electrical equipment heating and dehumidification control method and a control terminal. The electrical equipment heating and dehumidification control method comprises the following steps: obtaining a dry-bulb temperature, a wet-bulb temperature and a current atmospheric pressure, and determining a current dew point temperature according to the dry-bulb temperature, the wet-bulb temperature and the current atmospheric pressure; determining a target temperature according to the dew point temperature; and controlling a heater in the electrical equipment to be turned on until the temperature in the electrical equipment reaches the target temperature. The application determines the dew point temperature by comprehensively considering the dry-bulb temperature, the wet-bulb temperature and the current atmospheric pressure, determines the dew point temperature by comprehensively considering various factors of a scene, and controls the heater according to the dew point temperature, so that condensation can be effectively avoided, and the dehumidification effect is good.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heating and dehumidification, and particularly relates to a heating and dehumidification control method and a control terminal for electrical equipment. BACKGROUND

[0002] A frequency converter controls the power output of an alternating current motor by changing the frequency of the motor's power supply, and is widely used in industries such as industrial production, construction, and power. The application scenarios of the frequency converter involve different altitudes and locations, including the sea and land (grassland / forest / rainforest / desert, and many other environments). When the frequency converter operates in an area with heavy humidity and large temperature difference, dew condensation is likely to occur inside the frequency converter, which greatly reduces the insulation performance of the frequency converter, and may even cause a short circuit accident. A good operating environment for the frequency converter plays a crucial role in the safe and stable operation of power equipment. Therefore, a heating device is usually arranged inside the frequency converter to heat and dehumidify the frequency converter to avoid dew condensation.

[0003] In the prior art, a dry-bulb control strategy is usually used to control heating and dehumidification. However, the dehumidification effect of the existing control strategy is unstable for different scenarios, and cannot effectively avoid dew condensation of the frequency converter. SUMMARY

[0004] Embodiments of the present application provide a heating and dehumidification control method and a control terminal for electrical equipment to solve the problem of poor dehumidification effect of the existing dry-bulb control strategy.

[0005] In a first aspect, embodiments of the present application provide a heating and dehumidification control method for electrical equipment, comprising:

[0006] obtaining a dry-bulb temperature, a wet-bulb temperature, and a current atmospheric pressure, and determining a current dew point temperature according to the dry-bulb temperature, the wet-bulb temperature, and the current atmospheric pressure;

[0007] determining a target temperature according to the dew point temperature;

[0008] controlling a heater in the electrical equipment to be turned on until the temperature in the electrical equipment reaches the target temperature.

[0009] In a second aspect, embodiments of the present application provide a control terminal, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the steps of the heating and dehumidification control method for electrical equipment provided by the first aspect or any possible implementation manner of the first aspect when executing the computer program.

[0010] The embodiment of the present application provides a kind of electrical equipment heating dehumidification control method and control terminal.The electrical equipment heating dehumidification control method includes: obtaining dry bulb temperature, wet bulb temperature and current atmospheric pressure, and according to dry bulb temperature, wet bulb temperature and current atmospheric pressure, the current dew point temperature is determined;According to dew point temperature, determine target temperature;Control the heater in electrical equipment is opened, until the temperature in electrical equipment reaches target temperature.The embodiment of the present application considers specific application scenario, and the dew point temperature is determined by synthesizing dry bulb temperature, wet bulb temperature and current atmospheric pressure, and then the heater is controlled according to dew point temperature, which can effectively avoid dewing, and the dehumidification effect is good. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0012] Figure 1 It is a schematic diagram of the heater provided by the embodiment of the present application;

[0013] Figure 2 It is a flow chart of the implementation of the electrical equipment heating dehumidification control method provided by the embodiment of the present application;

[0014] Figure 3 It is a structural schematic diagram of the electrical equipment heating dehumidification control device provided by the embodiment of the present application;

[0015] Figure 4 It is a schematic diagram of the control terminal provided by the embodiment of the present application. DETAILED DESCRIPTION

[0016] In the following description, specific details are set forth in order to provide a thorough understanding of the embodiments of the present application, such as specific system structures, techniques, etc. However, it should be apparent to those skilled in the art that the present application can be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary details.

[0017] In order to make the objects, technical solutions and advantages of the present application clearer, the following will be described by specific embodiments with reference to the drawings.

[0018] Good running environment of electrical equipment such as frequency converter plays a guarantee role for safe and stable operation of the system. Currently, the cabinet structure of electrical equipment such as frequency converter is increasingly miniaturized, the internal structure is compact, the phase-to-phase and ground distance of live parts is reduced, and therefore the requirements for environmental factors are relatively higher. Due to electrical running environment, manufacturing and other reasons, especially when the water vapor is relatively heavy and the temperature difference is relatively large, the electrical equipment cabinet is prone to form condensation. The long-term operation of the cabinet in a high-humidity and high-pollution environment has great insulation failure hidden dangers. In a high-humidity environment, the insulation performance of air medium is greatly reduced, and at the same time, high-voltage electrodes are very prone to partial discharge in a high-humidity environment; the insulation performance of solid insulation materials changes greatly in a high-humidity environment, and under the influence of partial discharge, the aging of solid insulation materials is easily accelerated, and the electrical aging and environmental aging of solid insulation materials are usually irreversible.

[0019] Therefore, a heater is usually arranged in the electrical equipment to heat and dehumidify, so as to prevent the electrical equipment from condensation.

[0020] For example, referring to Figure 1 The heater includes a heating resistor and a fan. The control terminal determines the target temperature according to the control strategy and controls the heater to start.

[0021] In the prior art, the heater is usually controlled by using a dry-bulb control strategy. For example, the target temperature calculated according to the dry-bulb control strategy is 23℃, the heater is controlled to heat when the temperature is lower than 18℃, and the heating is stopped when the temperature rises to 23℃. However, it is known from the psychrometric chart that under the standard atmospheric pressure 101.325kPa, for the dry-bulb temperature 30℃, the dew point temperature corresponding to the relative humidity 75% is 25.08℃>23℃, the target temperature is lower than the dew point temperature, and condensation cannot be prevented. In another application scenario, the target temperature may be too high, the heater is excessively heated, and resource waste is caused.

[0022] Based on the above, referring to Figure 2 which shows an implementation flowchart of the electrical equipment heating and dehumidifying control method provided by the embodiment of the application, and the details are as follows:

[0023] The electrical equipment heating and dehumidifying control method includes:

[0024] S101: Obtain the dry-bulb temperature, the wet-bulb temperature and the current atmospheric pressure, and determine the current dew point temperature according to the dry-bulb temperature, the wet-bulb temperature and the current atmospheric pressure;

[0025] S102: Determine the target temperature according to the dew point temperature;

[0026] S103: Control the heater in the electrical equipment to start until the temperature in the electrical equipment reaches the target temperature.

[0027] In the embodiment of the present application, not only the dry bulb temperature is considered, but also the dew point temperature is determined based on the current application scenario, the dry bulb temperature, the wet bulb temperature and the current atmospheric pressure, and the heater is controlled according to the dew point temperature, so that the determination of the target temperature is more in line with the actual application scenario, the heater can effectively avoid dewing when heating to the target temperature, and resource waste is avoided, and the accurate control of the electrical equipment heating and dehumidification is realized.

[0028] It should be noted that the heater can include a heating resistor and a fan, the control of the heater being turned on includes the control of the heating resistor being heated and the control of the fan being turned on at the same time, the fan enhances the convective heat transfer inside the electrical equipment by mechanical forced turbulence to reduce the internal temperature gradient and uniformly dehumidify.

[0029] In a possible implementation, S101 can include:

[0030] S1011: determining the moisture content according to the dry bulb temperature, the wet bulb temperature and the current atmospheric pressure;

[0031] In the embodiment of the present application, the moisture content is determined in combination with the three parameters obtained.

[0032] Further, in a possible implementation, S1011 can include:

[0033] 1. determining the saturated wet air pressure according to the wet bulb temperature;

[0034] 2. determining the saturated moisture content according to the current atmospheric pressure and the saturated wet air pressure;

[0035] 3. determining the moisture content according to the dry bulb temperature, the wet bulb temperature and the saturated moisture content.

[0036] Specifically, in a possible implementation, determining the moisture content according to the dry bulb temperature, the wet bulb temperature and the saturated moisture content can include:

[0037] (1) determining the moisture content according to the dry bulb temperature, the wet bulb temperature and the saturated moisture content in combination with a first formula;

[0038] The first formula can include:

[0039] W = [(2501-2.326t s )W s -1.006(t-t s )] / [2501+1.86t-4.186t s ]

[0040] Wherein, t s is the wet bulb temperature, the unit is ℃, t is the dry bulb temperature, the unit is ℃, W sW is the saturated moisture content, in kg / w / kg.

[0041] It should be noted that 4.086 is the average specific heat capacity of water greater than 0℃, in kJ / kgK; 2501 is the latent heat of vaporization of water at 0℃, in kJ / kg; 1.006 is the average constant pressure specific heat of dry air (below 200℃); 1.86 is the average constant pressure specific heat of water, in kJ / kgK.

[0042] In the embodiment of the present application, only the case where the dry-bulb temperature is greater than 0℃ is considered, and the case where the dry-bulb temperature is less than 0℃ is not considered.

[0043] In a possible implementation, determining the saturated moisture content according to the current atmospheric pressure and the saturated wet air pressure can include:

[0044] Determining the saturated moisture content according to the current atmospheric pressure and the saturated wet air pressure in combination with the second formula;

[0045] The second formula can include:

[0046] W s = 0.621945 [P ws / P-P ws ]

[0047] Wherein, W s is the saturated moisture content, in kg / w / kg; P ws is the saturated wet air pressure, in kPa; P is the current atmospheric pressure, in kPa.

[0048] In a possible implementation, determining the saturated wet air pressure according to the wet-bulb temperature can include:

[0049] Determining the saturated wet air pressure according to the wet-bulb temperature in combination with the third formula;

[0050] The third formula can include:

[0051] P ws = [2C-B+(B 2 -4AC) 0.5 ] 4 × p #

[0052] A = ψ 2 +n1ψ+n2

[0053] B = n3ψ 2 +n4ψ+n5

[0054] C = n6ψ 2 +n7ψ+n8

[0055] ψ = ts / T # +n9 / [(t s / T # )-n 10 ]

[0056] wherein, P ws is saturated wet air pressure, in kPa; t s is wet bulb temperature, in ℃; A, B, C, ψ are all transfer parameters, n1, n2, n3, n4, n5, n6, n7, n8, n9, n 10 , p # and T # are all constants.

[0057] Based on the above, the moisture content can be calculated based on the first formula, the second formula and the third formula, the calculation of the moisture content considering the influence of multiple parameters is more in line with the actual operation scene of the electrical equipment, and the calculation result is more accurate.

[0058] For example, the values of the above-mentioned constants can be:

[0059] p # = 1 MPa

[0060] T # = 1 K

[0061] n1 = 0.11670521452767 * 10 4

[0062] n2 = -0.72421316703206 * 10 6

[0063] n3 = 0.17073846940092 * 10 2

[0064] n4 = 0.12020824702470 * 10 5

[0065] n5 = -0.32325550322333 * 10 7

[0066] n6 = 0.14915108613530 * 10 2

[0067] n7 = 0.48232657361591 * 10 4

[0068] n8 = 0.40511340542057 * 10 6

[0069] n9 = 0.23855557567849

[0070] n 10 = 0.65017534844798 * 10 3

[0071] S1012: determining water vapor partial pressure according to current atmospheric pressure and humidity content;

[0072] The water vapor partial pressure for indicating refers to the pressure occupied by water vapor in the wet air.

[0073] In a possible implementation, S1012 can include:

[0074] 1. determining water vapor partial pressure according to current atmospheric pressure and humidity content, combined with the fourth formula;

[0075] The fourth formula can include:

[0076] P w = (P x W) / (0.621945 + W)

[0077] Wherein, P w is the water vapor partial pressure, in kPa; P is the current atmospheric pressure, in kPa; W is the humidity content, in kg / w / kg.

[0078] S1013: determining dew point temperature according to water vapor partial pressure.

[0079] The water vapor partial pressure is related to the dew point temperature, therefore, in the embodiment of the application, the dew point temperature is determined according to the water vapor partial pressure, which is more accurate.

[0080] In a possible implementation, S1013 can include:

[0081] 1. determining dew point temperature according to water vapor partial pressure, combined with the fifth formula;

[0082] The fifth formula can include:

[0083] t d = C 14 + C 15 a + C 16 a 2 + C 17 a 3 + C 18 P w 0.1984

[0084] a = ln P w

[0085] Wherein, t d is the dew point temperature, in ℃; Pw P is the water vapor partial pressure unit kPa; a is the transfer parameter, C 14 , C 15 , C 16 , C 17 , C 18 are constants.

[0086] The dew point temperature is determined based on the water vapor partial pressure calculated based on a plurality of parameters, and the calculation result of the dew point temperature is more accurate and more in line with the actual situation.

[0087] In one possible implementation, S102 can include:

[0088] S1021: add the dew point temperature to the preset adjustment amount to obtain the target temperature;

[0089] The preset adjustment amount has a value range of 2.5℃-5℃.

[0090] In the case of constant air moisture content and constant air pressure, the temperature at which the air is cooled to saturation is called the dew point temperature, which is actually the temperature at which water vapor and water reach equilibrium. When the temperature is greater than the dew point temperature, no dew will form; when the temperature is less than the dew point temperature, dew will form.

[0091] Based on the dew point temperature calculated above, a certain preset adjustment amount is added to the dew point temperature in the embodiment of the present application to obtain the target temperature. In combination Figure 1 , the control terminal 3 controls the heater to heat until the target temperature is reached. If the target temperature is higher than the dew point temperature, the temperature of the electrical equipment heated by the heater to the target temperature is higher than the dew point temperature, deviating from the water vapor-liquid phase critical line, and no dew will form. At the same time, since the target temperature is only 2.5℃-5℃ higher than the dew point temperature, on the premise of ensuring that no dew will form, it will not cause excessive heating, avoid resource waste, and the control of the heater is more accurate, suitable for various operating scenarios, and improves the applicability of the electrical equipment heating and dehumidification control method.

[0092] In another embodiment, other related parameters can also be calculated for related analysis.

[0093] 1. Determine the atmospheric pressure at the altitude according to the altitude.

[0094] P=P0*(1-(L*H) / T0) (g / (R*L))

[0095] Wherein, H is the altitude, P is the atmospheric pressure at the altitude, Pa, P0 is the standard atmospheric pressure at sea level, about 101325 Pa, T0 is the standard temperature at sea level, about 288.15 K, g is the acceleration of gravity, R is the gas constant, about 8.314 (J / (C·mol)), L is the rate of change of temperature with altitude, about 0.0065 K / m.

[0096] 2, the moisture content has another way of calculation, specifically including:

[0097] W = 0.621945 [P w / (P wp -P w )]

[0098] W S = 0.621945 [P ws / (P-P ws )]

[0099] Wherein, W is the moisture content, units of kg / w / kg (water vapor / wet air); W S is the saturated moisture content, units of kg / w / kg; P w is the water vapor partial pressure, units of kPa; P ws is the saturated water vapor partial pressure, units of kPa.

[0100] Specifically, 18.015268 is the relative molecular mass of water; 28.966 is the relative molecular mass of air; 0.621945 is the ratio of 18.015268 to 28.966.

[0101] From which the specific enthalpy h+ can also be calculated, (W s -W)h w =h s , since h w ≈4.168t s , then t>0, h=1.006t+W(2501+1.86t);

[0102] When t<0, h w ≈-333.4+2.1t s ,

[0103] W = [(2830-2.4t s )W s -1.006(t-t s )] / [2830+1.86t-2.1t s ]

[0104] Wherein, 333.4 is the heat required to be absorbed when ice melts, unit: kJ / kg; 2.1 is the average specific heat capacity of water less than 0℃, unit: kJ / kgK.

[0105] The control method of the above embodiment does not consider the case of t<0.

[0106] 3. Relative humidity

[0107]

[0108] Wherein, is the relative humidity.

[0109] 4. Absolute humidity

[0110] d v =(18.015268xP w ) / (RxT)

[0111] Wherein, T is absolute temperature, K; R is the universal gas constant, 8314.472 J / (kmolK).

[0112] 5. Air specific volume

[0113] v=V / M da =V / 28.966n da

[0114] P da V=n da RT

[0115] P=P da +P w

[0116] Then we can get:

[0117] v=[RT(1+1.607858W)] / 28.966P

[0118] Wherein, P da is the dry air partial pressure, V is the mixed gas volume; n da is the dry air molar number.

[0119] 6. Wet air density

[0120] p=(M da +M w ) / V=(1 / v)(1+W)

[0121] Wherein, p is the wet air density, M w is the molar mass of each mole of water vapor.

[0122] It should be understood that the size of the serial number of each step in the above embodiment does not mean the order of execution, and the execution order of each process should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiment of the application.

[0123] The following is an apparatus embodiment of the application. For details not described in detail, reference can be made to the corresponding method embodiments described above.

[0124] Figure 3 A structure diagram of the electrical equipment heating and dehumidification control device provided by the embodiment of the application is shown. For ease of illustration, only parts related to the embodiment of the application are shown, and the details are as follows:

[0125] As shown in Figure 3 , the electrical equipment heating and dehumidification control device comprises:

[0126] a dew point temperature calculation module 21 configured to obtain a dry-bulb temperature, a wet-bulb temperature and a current atmospheric pressure, and determine a current dew point temperature according to the dry-bulb temperature, the wet-bulb temperature and the current atmospheric pressure;

[0127] a target temperature determination module 22 configured to determine a target temperature according to the dew point temperature;

[0128] a heating control module 23 configured to control a heater in the electrical equipment to be turned on until the temperature in the electrical equipment reaches the target temperature.

[0129] In a possible implementation, the dew point temperature calculation module 21 can comprise:

[0130] a moisture content determination unit configured to determine a moisture content according to the dry-bulb temperature, the wet-bulb temperature and the current atmospheric pressure;

[0131] a water vapor partial pressure determination unit configured to determine a water vapor partial pressure according to the current atmospheric pressure and the moisture content;

[0132] a dew point temperature determination unit configured to determine the dew point temperature according to the water vapor partial pressure.

[0133] In a possible implementation, the moisture content determination unit can be specifically configured to:

[0134] 1. determine a saturated moist air pressure according to the wet-bulb temperature;

[0135] 2. determine a saturated moisture content according to the current atmospheric pressure and the saturated moist air pressure;

[0136] 3. determine the moisture content according to the dry-bulb temperature, the wet-bulb temperature and the saturated moisture content.

[0137] In a possible implementation, determining the moisture content according to the dry-bulb temperature, the wet-bulb temperature and the saturated moisture content can comprise:

[0138] determining the moisture content in accordance with the dry-bulb temperature, the wet-bulb temperature, and the saturated moisture content, in combination with the first formula;

[0139] The first formula can include:

[0140] W = [(2501 - 2.326t s )W s - 1.006(t - t s )] / [2501 + 1.86t - 4.186t s ]

[0141] where t s is the wet-bulb temperature, t is the dry-bulb temperature, and W s is the saturated moisture content.

[0142] In one possible implementation, determining the saturated moisture content in accordance with the current atmospheric pressure and the saturated moist air pressure can include:

[0143] determining the saturated moisture content in accordance with the current atmospheric pressure and the saturated moist air pressure, in combination with the second formula;

[0144] The second formula can include:

[0145] W s = 0.621945 [P ws / P - P ws ]

[0146] where W s is the saturated moisture content, P ws is the saturated moist air pressure, and P is the current atmospheric pressure.

[0147] In one possible implementation, determining the saturated moist air pressure in accordance with the wet-bulb temperature can include:

[0148] determining the saturated moist air pressure in accordance with the wet-bulb temperature, in combination with the third formula;

[0149] The third formula can include:

[0150] P ws = [2C - B + (B 2 - 4AC) 0.5 ] 4 x p #

[0151] A = ψ 2 + n1ψ + n2

[0152] B = n3ψ 2 + n4ψ + n5

[0153] C = n6ψ2 + n7ψ + n8

[0154] ψ = t s / T # + n9 / [(t s / T # )-n 10 ]

[0155] wherein P ws is the saturated wet air pressure, t s is the wet bulb temperature; A, B, C, ψ are all transfer parameters, n1, n2, n3, n4, n5, n6, n7, n8, n9, n 10 , p # and T # are all constants.

[0156] In a possible implementation, the water vapor partial pressure determining unit can be specifically configured to determine the water vapor partial pressure according to the current atmospheric pressure and the humidity content, in combination with the fourth formula.

[0157] The fourth formula can include:

[0158] P w = (P x W) / (0.621945 + W)

[0159] wherein P w is the water vapor partial pressure, P is the current atmospheric pressure, and W is the humidity content.

[0160] In a possible implementation, the dew point temperature determining unit can be specifically configured to determine the dew point temperature according to the water vapor partial pressure, in combination with the fifth formula.

[0161] The fifth formula can include:

[0162] t d = C 14 + C 15 a + C 16 a 2 + C 17 a 3 + C 18 P w 0.1984

[0163] a = ln P w

[0164] wherein t d is the dew point temperature, P w is the water vapor partial pressure, a is a transfer parameter, C 14 , C 15 , C 16 , C 17 , C18 are all constants.

[0165] In a possible implementation, the target temperature determination module 22 may be specifically configured to: add the dew point temperature to a preset adjustment amount to obtain the target temperature;

[0166] The preset adjustment value may range from 2.5°C to 5°C.

[0167] Figure 4 Schematic diagram of the control terminal 3 provided by the embodiment of the present invention. Figure 4 As shown, the control terminal 3 of this embodiment includes: a processor 30 and a memory 31. The memory 31 is used to store a computer program 32, and the processor 30 is used to call and run the computer program 32 stored in the memory 31 to perform the steps in the above-mentioned embodiments of the heating and dehumidification control method for electrical equipment, such as Figure 2 Alternatively, the processor 30 is used to call and run the computer program 32 stored in the memory 31 to implement the functions of each module / unit in the above-mentioned device embodiments, such as Figure 3 The functions of modules 21 to 23 are shown.

[0168] For example, the computer program 32 may be divided into one or more modules / units, one or more modules / units being stored in the memory 31 and executed by the processor 30 to implement the present invention. One or more modules / units may be a series of computer program instruction segments capable of implementing specific functions, and the instruction segments are used to describe the execution process of the computer program 32 in the control terminal 3. For example, the computer program 32 may be divided into Figure 3 Modules / units 21 to 23 are shown.

[0169] The control terminal 3 can be a computing device such as a desktop computer, a notebook, a palmtop computer, or a cloud server. The control terminal 3 can include, but is not limited to, a processor 30 and a memory 31. Those skilled in the art will understand that Figure 4 It is only an example of the control terminal 3 and does not constitute a limitation on the control terminal 3. It may include more or fewer components than shown in the figure, or a combination of certain components, or different components. For example, the terminal may also include input and output devices, network access devices, buses, etc.

[0170] The processor 30 can be a central processing unit (CPU), and can also be other general-purpose processors, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor.

[0171] The memory 31 can be an internal storage unit of the terminal 3, for example, a hard disk or a memory of the terminal 3. The memory 31 can also be an external storage device of the terminal 3, for example, a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the terminal 3. Further, the memory 31 can include both the internal storage unit and the external storage device of the terminal 3. The memory 31 is used to store computer programs and other programs and data required by the terminal. The memory 31 can also be used to temporarily store data that has been output or will be output.

[0172] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above functional units and modules is exemplified, and in actual application, the above functions can be completed by different functional units and modules according to needs, that is, the internal structure of the device is divided into different functional units or modules to complete all or part of the functions described above. Each functional unit and module in the embodiment can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit. In addition, the specific names of each functional unit and module are only for easy distinction, and do not limit the protection scope of the present application. The specific working process of the units and modules in the above system can refer to the corresponding process in the foregoing method embodiments, which will not be described here.

[0173] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described or recorded in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0174] Those skilled in the art can understand that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are realized in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0175] In the embodiments provided by the present application, it should be understood that the disclosed apparatus / terminal and method can be implemented in other ways. For example, the apparatus / terminal embodiments described above are merely schematic. For example, the division of the modules or units is merely a logical function division, and there can be another division manner in actual implementation. For example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed coupling or direct coupling or communication connection between the units can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or in other forms.

[0176] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, i.e. can be located in one place, or can be distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiments.

[0177] In addition, each functional unit in each embodiment of the present application can be integrated into a processing unit, or each unit can exist physically independently, or two or more units can be integrated into one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0178] The integrated modules / units, if implemented in the form of software functional units and sold or used as independent products, can be stored in a computer readable storage medium. Based on such understanding, all or part of the processes in the above-mentioned embodiment methods can also be completed by a computer program instructing related hardware, and the computer program can be stored in a computer readable storage medium. When the computer program is executed by a processor, the steps of the above-mentioned various method embodiments can be implemented. The computer program includes computer program code, which can be in the form of source code, object code, executable files or some intermediate forms, etc. The computer readable medium can include any entity or device capable of carrying the computer program code, recording medium, U disk, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier signal, telecommunication signal and software distribution medium, etc.

[0179] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. An electric equipment heating and dehumidification control method, characterized by, The method comprises: obtaining a dry-bulb temperature, a wet-bulb temperature and a current atmospheric pressure, and determining a current dew-point temperature according to the dry-bulb temperature, the wet-bulb temperature and the current atmospheric pressure; determining a target temperature according to the dew-point temperature; controlling a heater in an electrical device to be turned on until a temperature in the electrical device reaches the target temperature; the determining of the current dew-point temperature according to the dry-bulb temperature, the wet-bulb temperature and the current atmospheric pressure comprises: determining a moisture content according to the dry-bulb temperature, the wet-bulb temperature and the current atmospheric pressure; determining a water-vapor partial pressure according to the current atmospheric pressure and the moisture content; determining a dew-point temperature according to the water-vapor partial pressure; the determining of the moisture content according to the dry-bulb temperature, the wet-bulb temperature and the current atmospheric pressure comprises: determining a saturated wet-air pressure according to the wet-bulb temperature; determining a saturated moisture content according to the current atmospheric pressure and the saturated wet-air pressure; determining the moisture content according to the dry-bulb temperature, the wet-bulb temperature and the saturated moisture content; the determining of the moisture content according to the dry-bulb temperature, the wet-bulb temperature and the saturated moisture content comprises: determining the moisture content according to the dry-bulb temperature, the wet-bulb temperature and the saturated moisture content in combination with a first formula; the first formula comprises: wherein, is the wet-bulb temperature, is the dry-bulb temperature, is the saturation moisture content; the determining of the saturated moisture content according to the current atmospheric pressure and the saturated wet-air pressure comprises: determining the saturated moisture content according to the current atmospheric pressure and the saturated wet-air pressure in combination with a second formula; the second formula comprises: wherein, is the saturated moisture content, is the saturated wet air pressure, is the current atmospheric pressure; the determining of the saturated wet-air pressure according to the wet-bulb temperature comprises: determining the saturated wet-air pressure according to the wet-bulb temperature in combination with a third formula; the third formula comprises: wherein, is the saturated wet air pressure, is the wet bulb temperature; are transfer parameters, , and are constants; the determining of the water-vapor partial pressure according to the current atmospheric pressure and the moisture content comprises: determining the water-vapor partial pressure according to the current atmospheric pressure and the moisture content in combination with a fourth formula; the fourth formula comprises: wherein, is the water vapor partial pressure, is the current atmospheric pressure, is the moisture content; the determining of the dew-point temperature according to the water-vapor partial pressure comprises: determining the dew-point temperature according to the water-vapor partial pressure in combination with a fifth formula; the fifth formula comprises: wherein is the dew point temperature, is the water vapor partial pressure, is the transfer parameter, are constants.

2. The electrical equipment heating dehumidification control method according to claim 1, characterized by, the determining of the target temperature according to the dew-point temperature comprises: adding the dew-point temperature to a preset adjustment amount to obtain the target temperature; wherein the preset adjustment amount ranges from 2.5°C to 5°C.

3. A control terminal, characterized by comprising: The method comprises a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and the steps of the electrical device heating and dehumidifying control method according to any one of claims 1 to 2 are executed.

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