Method and system for calculating carbon emission in operation stage of indoor transformer substation

Abstract

The invention discloses a method and a system for calculating carbon emission in an operation stage of an indoor transformer substation, and the method is based on the heat transfer area and the heat transfer coefficient of a building envelope and the environment data of a region where the indoor transformer substation is located. An indoor transformer substation operation stage carbon emission calculation model considering air conditioning equipment carbon emission, lighting and ventilation equipment carbon emission and cabinet equipment carbon emission is constructed, and carbon emission calculation is carried out through the established model. According to the method, equipment contained in the indoor transformer substation is combined, carbon emission of air conditioning equipment, carbon emission of lighting and ventilation equipment and carbon emission of cabinet equipment are fully considered, factors are fully considered, the method is more suitable for the actual operation condition of the indoor transformer substation in the operation stage, and the deviation of the calculated amount of carbon emission is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of carbon emission, and in particular relates to a method and system for calculating carbon emission during the operation phase of an indoor substation. Background Art

[0002] Indoor substations have become the first choice for urban power grid construction due to their easy maintenance, small footprint, and stable operation. With the continuous expansion of urban power grid construction, substations have gradually transformed into indoor types, and the number of indoor substations is increasing day by day. However, indoor substations place various electrical equipment in an indoor environment with poor heat dissipation. In order to ensure the normal operation of electrical equipment, they need to be ventilated and cooled, resulting in an increase in energy consumption and corresponding carbon emissions during the operation of indoor substations. In fact, carbon emissions during the operation of indoor substations often account for more than 50% of the total carbon emissions during the entire life cycle. Under the dual carbon goals, clarifying the carbon emission characteristics of indoor substations during the operation phase is crucial to their carbon reduction and green transformation of the power grid. Due to the many influencing factors that need to be considered in the calculation process, such as thermal parameters of the enclosure structure, equipment heat dissipation, etc., the traditional indoor substation operation phase carbon emission calculation method has certain limitations, and often does not fully consider the influencing factors, such as the environmental data of the area where the indoor substation is located, which will lead to a large deviation in the carbon emission calculation results. Although some researchers take environmental factors into consideration when calculating carbon emissions, they use the maximum or average outdoor temperature as a fixed value, which will further increase the deviation of the carbon emission calculation results.

[0003] Therefore, how to design a method and system for calculating carbon emissions during the operation phase of an indoor substation, and fully consider the influencing factors during the operation phase of the indoor substation, is an urgent problem to be solved by those skilled in the art. Summary of the invention

[0004] In order to solve the problems existing in the prior art, the present invention proposes a method and system for calculating carbon emissions during the operation phase of an indoor substation.

[0005] The technical solution of the present invention is as follows:

[0006] A method for calculating carbon emissions during the operation phase of an indoor substation, wherein the indoor substation includes air conditioning equipment, lighting and ventilation equipment, and cabinet equipment, and the method includes:

[0007] Acquire the heat transfer area and heat transfer coefficient of the enclosure structure in the indoor substation and the environmental data of the area where the indoor substation is located;

[0008] Based on the heat transfer area and heat transfer coefficient of the enclosure structure and the environmental data of the area where the indoor substation is located, a carbon emission calculation model for the indoor substation operation phase is constructed which takes into account the carbon emissions of air-conditioning equipment, lighting and ventilation equipment, and cabinet equipment. Carbon emissions are calculated based on the constructed carbon emission calculation model for the indoor substation operation phase.

[0009] Furthermore, the enclosure structure includes the outer walls, roof and outer windows of the indoor substation.

[0010] Furthermore, the heat transfer area of ​​the enclosure structure is obtained according to the design drawings of the target indoor substation; and the environmental data of the area where the indoor substation is located is the hourly cold load calculation temperature of the area where the indoor substation is located.

[0011] Furthermore, the expression of the carbon emission calculation model during the operation phase of the indoor substation is:

[0012] E=A+Q+C

[0013] In the formula, E is the annual carbon emissions of the indoor substation during the operation stage; A is the annual carbon emissions of air-conditioning equipment; Q is the annual carbon emissions of lighting equipment and ventilation equipment; C is the annual carbon emissions of cabinet equipment.

[0014] Furthermore, the expression of carbon emissions of the air conditioning equipment is:

[0015]

[0016] Where A is the carbon emissions of air conditioning; T t F is the annual opening time of the air conditioner; f is the carbon emission factor of electricity energy in the area where the indoor substation is located; AL Wq The hourly cooling load caused by heat transfer from the exterior wall; AL Wm The hourly cooling load caused by roof heat transfer; AL Wc The hourly cooling load caused by heat transfer from the exterior window; AL sb is the hourly cooling load formed by the heat dissipation of the air conditioning equipment; x1, x2, x3, x4 are the weights corresponding to the hourly cooling load of the air conditioning under the four influencing factors of the heat transfer coefficient of the exterior wall, roof, exterior window and the heat dissipation of the equipment; among them,

[0017] AL Wq =KF(t wlq -t n )

[0018] AL Wm =KF(t wlm -t n )

[0019] AL Wc =KF(twlc -t n )

[0020] AL sb =C clsb C sb Q sb

[0021] In the formula, AL Wq is the hourly cooling load caused by heat transfer of the exterior wall; K is the heat transfer coefficient of the exterior wall; F is the heat transfer area of ​​the exterior wall; t wlq Calculate the temperature of the hourly cooling load of the exterior wall; t n Design temperature for summer air-conditioned areas;

[0022] AL Wm is the hourly cooling load caused by roof heat transfer; K is the roof heat transfer coefficient; F is the roof heat transfer area; t wlm Calculate temperatures for hourly cooling loads on the roof;

[0023] AL Wc is the hourly cooling load caused by heat transfer from the external window; K is the heat transfer coefficient of the external window; F is the heat transfer area of ​​the external window; t wlc Calculate temperatures for hourly cooling loads on exterior windows;

[0024] AL sb The hourly cooling load formed by the heat dissipation of air-conditioning equipment; C Clsb is the cooling load coefficient of air conditioning equipment; C sb is the correction factor for air conditioning equipment; Q sb Heat dissipation for air conditioning equipment.

[0025] Furthermore, the carbon emissions of the lighting equipment and ventilation equipment are expressed as:

[0026] Q=Q 灯具 +Q 排放扇

[0027]

[0028] In the formula, Q 灯具 is the annual carbon emission of lighting fixtures; W d N is the lighting power of the dth room; d is the number of lighting fixtures in the dth room; H d The experience value of opening time throughout the year; F f is the carbon emission factor of electricity energy in the area where the indoor substation is located; d is the number of rooms equipped with lamps in the substation; n d is the total number of rooms equipped with lighting fixtures in the substation;

[0029]

[0030] In the formula, Q 排风扇 is the annual carbon emission of the mechanical exhaust fan; W p The fan power of the pth room; X p is the number of exhaust fans in the pth room; H p The experience value of opening time throughout the year; F f is the carbon emission factor of electricity energy in the area where the indoor substation is located; p is the number of rooms equipped with exhaust fans in the substation; n p The total number of rooms in the substation equipped with exhaust fans.

[0031] Furthermore, the carbon emissions of the cabinet equipment are expressed as:

[0032]

[0033] Where: C is the annual carbon emissions of the cabinet equipment, P s is the load of a single electrical equipment; T s F is the annual power consumption time of a single power-consuming equipment; f is the carbon emission factor of the electricity energy in the area where the indoor substation is located; s is the number of electrical equipment; n s The total number of electrical equipment.

[0034] A carbon emission calculation system for an indoor substation during operation, wherein the indoor substation includes air conditioning equipment, lighting and ventilation equipment, and cabinet equipment, and the system includes a data acquisition module, a model building module, and a calculation module;

[0035] The data acquisition module is used to acquire the heat transfer area and heat transfer coefficient of the enclosure structure in the indoor substation and the environmental data of the area where the indoor substation is located;

[0036] The model building module is used to build a carbon emission calculation model for the indoor substation operation phase that takes into account the carbon emission of air-conditioning equipment, the carbon emission of lighting and ventilation equipment, and the carbon emission of cabinet equipment based on the heat transfer area and heat transfer coefficient of the enclosure structure and the environmental data of the area where the indoor substation is located;

[0037] The calculation module is used to calculate carbon emissions based on the constructed carbon emission calculation model for the indoor substation operation phase.

[0038] An electronic device comprises a memory and a processor, wherein the memory stores a computer program, and the processor is used to call and run the computer program stored in the memory to execute any of the methods described above.

[0039] A computer-readable storage medium stores a computer program, wherein the computer program implements the steps of any of the above methods when executed by a processor.

[0040] Compared with the prior art, the present invention has the following beneficial effects:

[0041] The present invention proposes a method and system for calculating carbon emissions during the operation phase of an indoor substation. The method is based on the heat transfer area and heat transfer coefficient of the enclosure structure and the environmental data of the area where the indoor substation is located, and constructs a carbon emission calculation model for the operation phase of an indoor substation that takes into account carbon emissions of air-conditioning equipment, lighting and ventilation equipment, and cabinet equipment, and calculates carbon emissions through the established model. The method combines the equipment included in the indoor substation, fully considers carbon emissions of air-conditioning equipment, lighting and ventilation equipment, and cabinet equipment, and considers factors that are sufficient and more realistic to the operation phase of the indoor substation, thereby reducing the deviation of the calculated carbon emissions.

[0042] The calculation method of the present invention fully considers the heat transfer coefficients of the exterior walls, roofs, exterior windows and the heat dissipation of the equipment. When calculating the carbon emissions of the air-conditioning equipment, a non-steady-state method is used in combination with the hourly meteorological temperature of the substation location to calculate the hourly cooling load of the air conditioner under various influencing factors, which is in line with the actual operation of the indoor substation during the operation phase, and further reduces the deviation of the calculated carbon emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is a flow chart of the carbon emission calculation method for the indoor substation operation stage;

[0044] Figure 2 This is a schematic diagram of the sources of carbon emissions during the operation phase of an indoor substation;

[0045] Figure 3 Schematic diagram of the sources of carbon emissions from air-conditioning equipment. DETAILED DESCRIPTION

[0046] Embodiment 1:

[0047] The present invention provides a method for calculating carbon emissions during the operation phase of an indoor substation, wherein the indoor substation includes air conditioning equipment, lighting and ventilation equipment, and cabinet equipment. The method includes:

[0048] Obtain the heat transfer area and heat transfer coefficient of the enclosure structure in the indoor substation and the environmental data of the area where the indoor substation is located;

[0049] Based on the heat transfer area and heat transfer coefficient of the enclosing structure and the environmental data of the area where the indoor substation is located, a carbon emission calculation model for the indoor substation operation phase is constructed which takes into account the carbon emissions of air-conditioning equipment, lighting and ventilation equipment, and cabinet equipment. Carbon emissions are calculated based on the constructed carbon emission calculation model for the indoor substation operation phase.

[0050] Embodiment 2:

[0051] This embodiment is further designed on the basis of the first embodiment in that the enclosure structure in this embodiment includes the outer wall, roof and outer window of the indoor substation.

[0052] Embodiment three:

[0053] This embodiment is further designed on the basis of the second embodiment in that the heat transfer area of ​​the enclosure structure in this embodiment is obtained according to the design drawings of the target indoor substation; the heat transfer coefficient of the enclosure structure is obtained according to the "Civil Building Thermal Design Code"

[0054] GB50176-2016; the environmental data of the area where the indoor substation is located is the hourly cooling load calculation temperature of the area where the indoor substation is located.

[0055] Embodiment 4:

[0056] This embodiment is further designed on the basis of the third embodiment in that: Figure 2 As shown in the figure, the carbon emission calculation model of the indoor substation in the operation stage in this example is determined according to the source of carbon emissions, mainly including air conditioning energy consumption, ventilation energy consumption, lighting energy consumption and cabinet equipment (energy consumption). The expression of the model is:

[0057] E=A+Q+C

[0058] In the formula, E is the annual carbon emissions of the indoor substation during the operation stage; A is the annual carbon emissions of air-conditioning equipment; Q is the annual carbon emissions of lighting equipment and ventilation equipment; C is the annual carbon emissions of cabinet equipment.

[0059] Embodiment five:

[0060] This embodiment is further designed on the basis of the fourth embodiment in that: Figure 3 As shown, in this example, the carbon emissions of air-conditioning equipment mainly include two parts: the enclosure structure and indoor equipment. The carbon emissions of the enclosure structure need to confirm the heat transfer coefficient of the exterior wall, the heat transfer coefficient of the exterior window and the heat transfer coefficient of the roof. The carbon emissions of indoor equipment need to confirm the heat dissipation of the equipment. The expression of carbon emissions of air-conditioning equipment is:

[0061]

[0062] Where A is the carbon emissions of air conditioning; T t The air conditioner is turned on for 24 hours a year by default. f is the carbon emission factor of electricity energy in the area where the indoor substation is located; AL Wq The hourly cooling load caused by heat transfer from the exterior wall; AL Wm The hourly cooling load caused by roof heat transfer; AL Wc The hourly cooling load caused by heat transfer from the exterior window; AL sbis the hourly cooling load formed by the heat dissipation of the air conditioning equipment; x1, x2, x3, x4 are the weights corresponding to the hourly cooling load of the air conditioning under the four influencing factors of the heat transfer coefficient of the exterior wall, roof, exterior window and the heat dissipation of the equipment; among them,

[0063] AL Wq =KF(t wlq -t n )

[0064] AL Wm =KF(t wlm -t n )

[0065] AL Wc =KF(t wlc -t n )

[0066] AL sb =C clsb C sb Q sb

[0067] In the formula, AL Wq is the hourly cooling load caused by heat transfer of the exterior wall; K is the heat transfer coefficient of the exterior wall; F is the heat transfer area of ​​the exterior wall; t wlq Calculate the temperature of the hourly cooling load of the exterior wall; t n Design temperature for summer air-conditioned areas;

[0068] AL Wm is the hourly cooling load caused by roof heat transfer; K is the roof heat transfer coefficient; F is the roof heat transfer area; t wlm Calculate temperatures for hourly cooling loads on the roof;

[0069] AL Wc is the hourly cooling load caused by heat transfer from the external window; K is the heat transfer coefficient of the external window; F is the heat transfer area of ​​the external window; t wlc Calculate temperatures for hourly cooling loads on exterior windows;

[0070] AL sb The hourly cooling load formed by the heat dissipation of air-conditioning equipment; C Clsb is the cooling load coefficient of air conditioning equipment; C sb is the correction factor for air conditioning equipment; Q sb Heat dissipation for air conditioning equipment.

[0071] Embodiment 6

[0072] This embodiment is further designed on the basis of the third embodiment in that the carbon emissions of lighting equipment and ventilation equipment in this embodiment are expressed as:

[0073] Q=Q 灯具 +Q 排放扇

[0074]

[0075] In the formula, Q 灯具 is the annual carbon emission of lighting fixtures; W d N is the lighting power of the dth room; d is the number of lighting fixtures in the dth room; H d The lighting equipment is turned on for 1200 hours per year. f is the carbon emission factor of electricity energy in the area where the indoor substation is located; d is the number of rooms equipped with lamps in the substation; n d is the total number of rooms equipped with lighting fixtures in the substation;

[0076]

[0077] In the formula, Q 排风扇 is the annual carbon emission of the mechanical exhaust fan; W p The fan power of the pth room; X p is the number of exhaust fans in the pth room; H p The ventilation equipment is turned on for 4380 hours per year. f is the carbon emission factor of electricity energy in the area where the indoor substation is located; p is the number of rooms equipped with exhaust fans in the substation; n p The total number of rooms in the substation equipped with exhaust fans.

[0078] Embodiment seven:

[0079] This embodiment is further designed on the basis of the fourth embodiment in that the carbon emission of the cabinet equipment in this embodiment is expressed as:

[0080]

[0081] Where: C is the annual carbon emissions of the cabinet equipment, P s is the load of a single electrical equipment; 0.7 is the load factor, T s F is the annual power consumption time of a single power-consuming equipment. Considering that the cabinet equipment does not operate at full power throughout the year, the maximum load utilization hours are 5500h; f is the carbon emission factor of the electricity energy in the area where the indoor substation is located; s is the number of electrical equipment; n s The total number of electrical equipment.

[0082] Embodiment eight:

[0083] The present invention provides a carbon emission calculation system for an indoor substation during operation, wherein the indoor substation includes air conditioning equipment, lighting and ventilation equipment, and cabinet equipment, and the system includes a data acquisition module, a model building module, and a calculation module;

[0084] A data acquisition module, used to acquire the heat transfer area and heat transfer coefficient of the enclosure structure in the indoor substation and the environmental data of the area where the indoor substation is located;

[0085] The model building module is used to build a carbon emission calculation model for the operation phase of the indoor substation, which takes into account the carbon emissions of air-conditioning equipment, lighting and ventilation equipment, and cabinet equipment, based on the heat transfer area and heat transfer coefficient of the enclosure structure and the environmental data of the area where the indoor substation is located;

[0086] The calculation module is used to calculate carbon emissions based on the constructed carbon emission calculation model for the indoor substation operation stage.

[0087] Embodiment nine:

[0088] An electronic device of the present invention includes a memory and a processor. The memory stores a computer program. The processor is used to call and run the computer program stored in the memory to execute the method described in any of the above embodiments.

[0089] A computer-readable storage medium of the present invention stores a computer program, and when the computer program is executed by a processor, the steps of the method described in any of the above embodiments are implemented.

[0090] Application examples:

[0091] This example uses the method for calculating carbon emissions during the operation phase of an indoor substation of the present invention to calculate the carbon emissions during the operation phase of a certain indoor substation in Suzhou City, Jiangsu Province. Considering that the carbon emissions caused by transformer losses, etc. are caused by the indoor substation performing power transmission and transformation work for the entire power supply area, this part of the carbon emissions should be taken into consideration in the entire power supply area. Therefore, the substation operation carbon emissions only consider the station load energy consumption, which is composed of air-conditioning equipment (i.e., air-conditioning system), lighting equipment (i.e., lighting fixtures), ventilation equipment (i.e., mechanical exhaust) and cabinet equipment. The substation has a large number of cabinet equipment and the energy consumption of a single device is limited. The total number of cabinets, the power of the equipment, etc. can be obtained based on the relevant design drawings, and the number, power and opening time data of the substation lighting fixtures and mechanical emission equipment can be obtained based on the relevant design drawings. In this example, the environmental data of the area where the substation is located is the hourly cold load calculation temperature of the area where the indoor substation is located. After acquisition, it is stored in the database and quickly retrieved and used when performing calculations. The following is a method for obtaining environmental data:

[0092] Select the corresponding typical city according to the climate zone where the target indoor substation is located, and download the typical meteorological year file of the city from the National Meteorological Bureau as the external meteorological information for air conditioning energy consumption calculation. The climate zones corresponding to typical cities in different climate zones are shown in Table 1 below.

[0093] Table 1

[0094] Climate zone Typical city Severely cold region A Nenjiang City, Heilongjiang Severely cold area B Harbin, Heilongjiang Severely cold regions C Urumqi, Xinjiang Uygur Autonomous Region Hot summer and cold winter area A Nanjing, Jiangsu Province Hot summer and cold winter area B Chongqing Hot summer and warm winter area A Fuzhou City, Fujian Province Hot summer and warm winter area B Guangzhou, Guangdong Province

[0095] This embodiment is located in Suzhou, Jiangsu Province, which belongs to the hot summer and cold winter region A. Its corresponding typical city is Nanjing, Jiangsu Province. The heat transfer coefficient of the target substation outer wall is 0.565W (m 2 ·K), the roof heat transfer coefficient is 0.725W(m 2 ·K), the heat transfer coefficient of the external window is 3.1W(m 2 ·K); the external wall area is 1067.56m 2 , the roof area is 434m 2 , the external window area is 25.2m 2 The heat dissipation of the equipment is 26000W, and the total load of the equipment is 52kW; the carbon emission factor of electricity consumption in the target substation area is 0.6451kg / Kw·h; the indoor design temperature is 26℃, and the hourly cooling load calculation temperature table for Nanjing City is shown in Table 2 below.

[0096] Table 2

[0097] Time / h 1 2 3 4 5 6 7 8 9 10 11 12 Temperature / ℃ 36.8 36.4 36.0 35.2 34.2 34.9 34.6 34.5 34.6 35.0 35.6 36.2 Time / h 13 14 15 16 17 18 19 20 21 22 23 24 Temperature / ℃ 36.38 37.2 37.5 37.8 37.9 38.1 38.1 38.1 38.0 37.9 37.7 37.3

[0098] The calculated annual carbon emissions of air conditioners are shown in Table 3 below:

[0099] Table 3

[0100]

[0101] AL sb =26000×0.7×0.5×24=218400W

[0102] The annual carbon emissions of air conditioners are: A = (153084 × 0.28 + 159780 × 0.29 + 21745 × 0.04 + 218400 × 0.39) × 365 × 0.001 × 0.6451 = 41358 kg / CO2e

[0103] In the target substation building of the embodiment, the number of lighting fixtures is 150, the power consumption of a single lighting fixture is 0.1kW, and the lighting fixture is turned on for 1200h per year; there are 56 ventilation devices, the power consumption of a single ventilation device is 0.13kW, and the ventilation devices are turned on for 4380h per year.

[0104] The annual carbon emissions of lighting fixtures are: Q 照明 =0.1×150×1200×0.6451=11612kg / CO2e

[0105] The annual carbon emissions of ventilation equipment are: Q 通风 =0.13×56×4380×0.6451=20570kg / CO2e

[0106] The annual carbon emissions of lighting and ventilation equipment are: Q = 11612 + 20570 = 32182 kg / CO2e

[0107] The annual carbon emissions of the equipment are: C = 52 × 0.7 × 5500 × 0.6451 = 129149 kg / CO2e

[0108] The annual carbon emissions during the operation of the substation are: E = 41358 + 32182 + 129149 = 202689 kg / CO2e

[0109] The above description is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a technician familiar with the technical field within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention.

Claims

1. A method for calculating carbon emissions during the operation phase of an indoor substation, wherein the indoor substation includes air conditioning equipment, lighting and ventilation equipment, and cabinet equipment, characterized in that: The method comprises: Acquire the heat transfer area and heat transfer coefficient of the enclosure structure in the indoor substation and the environmental data of the area where the indoor substation is located; Based on the heat transfer area and heat transfer coefficient of the enclosure structure and the environmental data of the area where the indoor substation is located, a carbon emission calculation model for the indoor substation operation phase is constructed which takes into account the carbon emissions of air-conditioning equipment, lighting and ventilation equipment, and cabinet equipment. Carbon emissions are calculated based on the constructed carbon emission calculation model for the indoor substation operation phase.

2. The method for calculating carbon emissions during the operation phase of an indoor substation according to claim 1 is characterized in that: The enclosure structure includes the outer wall, roof and outer window of the indoor substation.

3. The method for calculating carbon emissions during the operation phase of an indoor substation according to claim 2 is characterized in that: The heat transfer area of ​​the enclosure structure is obtained according to the design drawings of the target indoor substation; the environmental data of the area where the indoor substation is located is the hourly cold load calculation temperature of the area where the indoor substation is located.

4. The method for calculating carbon emissions during the operation phase of an indoor substation according to claim 3 is characterized in that: The expression of the carbon emission calculation model of the indoor substation operation stage is: E=A+Q+C In the formula, E is the annual carbon emissions of the indoor substation during the operation stage; A is the annual carbon emissions of air-conditioning equipment; Q is the annual carbon emissions of lighting equipment and ventilation equipment; C is the annual carbon emissions of cabinet equipment.

5. The method for calculating carbon emissions during the operation phase of an indoor substation according to claim 4, characterized in that: The expression of carbon emissions of the air conditioning equipment is: Where A is the carbon emissions of air conditioning; T t The annual operation time of the air conditioner; F f is the carbon emission factor of electricity energy in the area where the indoor substation is located; AL Wq The hourly cooling load caused by heat transfer from the exterior wall; AL Wm The hourly cooling load caused by roof heat transfer; AL Wc The hourly cooling load caused by heat transfer from the exterior window; AL sb is the hourly cooling load formed by the heat dissipation of the air conditioning equipment; x1, x2, x3, x4 are the weights corresponding to the hourly cooling load of the air conditioning under the four influencing factors of the heat transfer coefficient of the exterior wall, roof, exterior window and the heat dissipation of the equipment; among them, AL Wq =KF(t wlq -t n ) AL Wm =KF(t wlm -t n ) AL Wc =KF(t wlc -t n ) In the formula, AL Wq is the hourly cooling load caused by heat transfer of the exterior wall; K is the heat transfer coefficient of the exterior wall; F is the heat transfer area of ​​the exterior wall; t wlq Calculate the temperature of the hourly cooling load of the exterior wall; t n Design temperature for summer air-conditioned areas; AL Wm is the hourly cooling load caused by roof heat transfer; K is the roof heat transfer coefficient; F is the roof heat transfer area; t wlm Calculate temperatures for hourly cooling loads on the roof; AL Wc is the hourly cooling load caused by heat transfer from the external window; K is the heat transfer coefficient of the external window; F is the heat transfer area of ​​the external window; t wlc Calculate temperatures for hourly cooling loads on exterior windows; AL sb The hourly cooling load formed by the heat dissipation of air-conditioning equipment; C Clsb is the cooling load coefficient of air conditioning equipment; C sb is the correction factor for air conditioning equipment; Q sb Heat dissipation for air conditioning equipment.

6. The method for calculating carbon emissions during the operation phase of an indoor substation according to claim 4, characterized in that: The carbon emissions of the lighting equipment and ventilation equipment are expressed as: Q=Q 灯具 +Q 排放扇 In the formula, Q 灯具 is the annual carbon emissions of lighting fixtures; W d N is the lighting power of the dth room; d is the number of lighting fixtures in the dth room; H d The experience value of opening time throughout the year; F f is the carbon emission factor of electricity energy in the area where the indoor substation is located; d is the number of rooms equipped with lamps in the substation; n d is the total number of rooms equipped with lighting fixtures in the substation; In the formula, Q 排风扇 is the annual carbon emission of the mechanical exhaust fan; W p The fan power of the pth room; X p is the number of exhaust fans in the pth room; H p The experience value of opening time throughout the year; F f is the carbon emission factor of electricity energy in the area where the indoor substation is located; p is the number of rooms equipped with exhaust fans in the substation; n p The total number of rooms in the substation equipped with exhaust fans.

7. The method for calculating carbon emissions during the operation phase of an indoor substation according to claim 4, characterized in that: The carbon emission of the cabinet equipment is expressed as: Where: C is the annual carbon emissions of the cabinet equipment, P s is the load of a single electrical equipment; T s F is the annual power consumption time of a single power-consuming equipment; f is the carbon emission factor of the electricity energy in the area where the indoor substation is located; s is the number of electrical equipment; n s The total number of electrical equipment.

8. A carbon emission calculation system for an indoor substation during operation, wherein the indoor substation includes air conditioning equipment, lighting and ventilation equipment, and cabinet equipment, and is characterized by: The system includes a data acquisition module, a model building module and a calculation module; The data acquisition module is used to acquire the heat transfer area and heat transfer coefficient of the enclosure structure in the indoor substation and the environmental data of the area where the indoor substation is located; The model building module is used to build a carbon emission calculation model for the indoor substation operation phase that takes into account the carbon emission of air-conditioning equipment, the carbon emission of lighting and ventilation equipment, and the carbon emission of cabinet equipment based on the heat transfer area and heat transfer coefficient of the enclosure structure and the environmental data of the area where the indoor substation is located; The calculation module is used to calculate carbon emissions based on the constructed carbon emission calculation model for the indoor substation operation phase.

9. An electronic device, characterized in that: The electronic device comprises a memory and a processor, wherein the memory stores a computer program, and the processor is configured to call and run the computer program stored in the memory to execute the method according to any one of claims 1 to 7.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method as claimed in any one of claims 1 to 7 are implemented.

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