Calculation method for carbon dioxide emission reduction of park-level gas-fired distributed integrated energy system

Abstract

The present invention discloses a method for calculating carbon dioxide emission reduction of a park-level gas-fired distributed integrated energy system, including: dividing a host equipment system and a peak-shaving equipment system according to the park-level gas-fired distributed integrated energy system; determining a benchmark reference system according to the park-level gas-fired distributed integrated energy system; calculating carbon dioxide emissions during operation according to the host equipment system and the peak-shaving equipment system; calculating the benchmark reference system carbon dioxide emissions according to the benchmark reference system; calculating the carbon dioxide emission reduction of the park-level gas-fired distributed integrated energy system according to the carbon dioxide emissions during operation and the benchmark reference system carbon dioxide emissions. By implementing the present invention, the benchmark reference system is determined, making the emission reduction calculation more reasonable, and at the same time, laying a foundation for the calculation of carbon dioxide emission reduction of the park-level gas-fired distributed integrated energy system under the existing power system conditions, and providing a basis for the calculation of carbon dioxide emission reduction.

Description

Technical Field

[0001] The present invention relates to the technical field of emission reduction of distributed integrated energy systems, and in particular to a method for calculating carbon dioxide emission reduction of a park-level gas-fired distributed integrated energy system. Background Art

[0002] On the road to achieving the "dual carbon" goal in my country, an integrated energy system with horizontal "electricity, heat, cooling, water" energy supply and vertical "source, grid, load, storage and use" multi-link coordination is an excellent power supply system at this stage. However, since the fuel input of the park-level gas-distributed integrated energy system includes solar energy, wind energy, geothermal energy, natural gas and other forms of energy, and the output includes electricity, heat, gas, water and other forms of energy, there are many forms of energy, so the calculation of carbon dioxide emission reduction in this system is relatively complicated, and there is no unified calculation method for the system's carbon dioxide emissions and emission reduction.

[0003] However, the current calculation of carbon emissions of individual systems such as coal-fired systems and renewable energy power generation systems is more, and the calculation of carbon dioxide emission reduction is less. In addition, there is no unified standard for the benchmark reference system required to calculate the carbon dioxide emission reduction of the park-level gas-fired distributed integrated energy system. Some use coal-fired power as the benchmark. However, under the new power system, with the grid connection of large-scale renewable energy, the carbon emissions of the power grid are gradually reduced. It is not reasonable to use coal-fired power as the benchmark reference system. Therefore, the calculation method of carbon emission reduction of the integrated energy system needs to be studied urgently. Summary of the invention

[0004] In view of this, an embodiment of the present invention provides a method for calculating carbon dioxide emission reduction in a park-level gas-fired distributed integrated energy system to solve the technical problem of unreasonable calculation of emission reduction in a park-level gas-fired distributed integrated energy system in the prior art.

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

[0006] A first aspect of an embodiment of the present invention provides a method for calculating carbon dioxide emission reductions in a park-level gas-fired distributed integrated energy system, comprising: dividing a host equipment system and a peak-shaving equipment system according to the park-level gas-fired distributed integrated energy system; determining a benchmark reference system according to the park-level gas-fired distributed integrated energy system, the benchmark reference system comprising: an electricity substitution system, a cooling substitution system, a heating substitution system and a domestic hot water substitution system; calculating carbon dioxide emissions during operation according to the host equipment system and the peak-shaving equipment system; calculating carbon dioxide emissions of a benchmark reference system according to the benchmark reference system; calculating carbon dioxide emission reductions of the park-level gas-fired distributed integrated energy system according to the carbon dioxide emissions during operation and the carbon dioxide emissions of the benchmark reference system.

[0007] Optionally, the carbon dioxide emissions during the operation period are calculated according to the host device system and the peak-shaving equipment system, including: calculating the carbon dioxide emissions generated by the combustion of gas consumed by the host device according to the host device system; calculating the carbon dioxide emissions generated by the combustion of gas consumed by the peak-shaving equipment according to the peak-shaving equipment system; calculating the carbon dioxide emissions generated by the purchased electricity according to the purchased electricity; calculating the carbon dioxide emissions during the operation period according to the carbon dioxide emissions generated by the combustion of gas consumed by the host device, the carbon dioxide emissions generated by the combustion of gas consumed by the peak-shaving equipment, and the carbon dioxide emissions generated by the purchased electricity.

[0008] Optionally, the carbon dioxide emissions generated by the combustion of gas consumed by the host equipment are calculated based on the gas consumed by the host equipment, the lower calorific value of the gas and the carbon dioxide emission factor corresponding to the gas; the carbon dioxide emissions generated by the combustion of gas consumed by the peak-shaving equipment are calculated based on the gas consumed by the peak-shaving equipment, the lower calorific value of the gas and the carbon dioxide emission factor corresponding to the gas; the carbon dioxide emissions generated by the purchased and used electricity are calculated based on the amount of electricity purchased from the power grid and the power grid emission factor.

[0009] Optionally, before calculating the carbon dioxide emissions of the benchmark reference system according to the benchmark reference system, it also includes: determining the energy output according to the park-level gas distributed integrated energy system, and the energy output includes electricity supply, cooling supply, heating supply and domestic hot water supply.

[0010] Optionally, the carbon dioxide emissions of a benchmark reference system are calculated according to the benchmark reference system, including: calculating the carbon dioxide emissions of the power supply of the benchmark reference system according to the power substitution system; calculating the carbon dioxide emissions of the cooling capacity of the benchmark reference system according to the cooling substitution system; calculating the carbon dioxide emissions of the heating capacity of the benchmark reference system according to the heating substitution system; calculating the carbon dioxide emissions of the domestic hot water supply of the benchmark reference system according to the domestic hot water substitution system.

[0011] Optionally, the carbon dioxide emissions from the power supply are calculated based on the power supply and the grid emission factor; the carbon dioxide emissions from the cooling supply are calculated based on the cooling supply, the grid emission factor and the refrigeration coefficient of the electric refrigeration machine used in the benchmark reference system; the carbon dioxide emissions from the heating supply are calculated based on the heating supply, the thermal efficiency of the gas boiler used for heating in the benchmark reference system and the carbon dioxide emission factor corresponding to the gas; the carbon dioxide emissions from the domestic hot water supply are calculated based on the domestic hot water supply.

[0012] Optionally, the carbon dioxide emissions from the domestic hot water supply are calculated based on the amount of domestic hot water supplied, including: when the domestic hot water system adopts a gas boiler, the carbon dioxide emissions from the domestic hot water supply are calculated based on the amount of domestic hot water supplied, the carbon dioxide emission factor corresponding to the gas, and the thermal efficiency of the gas boiler; when the domestic hot water system adopts an electric boiler, the carbon dioxide emissions from the domestic hot water supply are calculated based on the amount of domestic hot water supplied, the power grid emission factor, and the thermal efficiency of the electric boiler.

[0013] The second aspect of an embodiment of the present invention provides a device for calculating carbon dioxide emission reduction of a park-level gas-fired distributed integrated energy system, comprising: a division module, used to divide a host equipment system and a peak-shaving equipment system according to the park-level gas-fired distributed integrated energy system; a benchmark determination module, used to determine a benchmark reference system according to the park-level gas-fired distributed integrated energy system, the benchmark reference system comprising: an electricity substitution system, a cooling substitution system, a heating substitution system and a domestic hot water substitution system; a first emission calculation module, used to calculate the carbon dioxide emissions during the operation period according to the host equipment system and the peak-shaving equipment system; a second emission calculation module, used to calculate the carbon dioxide emissions of the benchmark reference system according to the benchmark reference system; an emission reduction calculation module, used to calculate the carbon dioxide emission reduction of the park-level gas-fired distributed integrated energy system according to the carbon dioxide emissions during the operation period and the carbon dioxide emissions of the benchmark reference system.

[0014] A third aspect of an embodiment of the present invention provides a computer-readable storage medium, which stores computer instructions, and the computer instructions are used to enable the computer to execute the carbon dioxide emission reduction calculation method for a park-level gas distributed integrated energy system as described in the first aspect of the embodiment of the present invention and any one of the first aspects.

[0015] A fourth aspect of an embodiment of the present invention provides an electronic device, comprising: a memory and a processor, the memory and the processor being communicatively connected to each other, the memory storing computer instructions, and the processor executing the computer instructions to execute the method for calculating carbon dioxide emission reduction in a park-level gas-fired distributed integrated energy system as described in the first aspect of the embodiment of the present invention and any one of the first aspects.

[0016] The technical solution provided by the present invention has the following effects:

[0017] The park-level gas-fired distributed integrated energy carbon dioxide emission reduction calculation method provided in the embodiment of the present invention divides the host equipment system and the peak-shaving equipment system through the park-level gas-fired distributed integrated energy system, and the corresponding equipment system calculates the carbon dioxide emissions during the operation period; at the same time, the benchmark reference system is determined based on the form of energy output of the integrated energy system, and the carbon dioxide emissions of the benchmark reference system are calculated; finally, the carbon dioxide emission reduction of the integrated energy system is calculated by combining the carbon dioxide emissions during the operation period and the carbon dioxide emissions of the benchmark reference system. Therefore, by determining the benchmark reference system based on the integrated energy system, the calculation method is more reasonable than the calculation method based only on coal-fired power in the prior art, and at the same time, it lays the foundation for the calculation of carbon dioxide emission reduction of the park-level gas-fired distributed integrated energy system under the existing power system conditions, and provides a basis for the calculation of carbon dioxide emission reduction of the park-level gas-fired distributed integrated energy system under the existing power system conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 is a flow chart of a method for calculating carbon dioxide emission reduction in a park-level gas-fired distributed integrated energy system according to an embodiment of the present invention;

[0020] Figure 2 is a structural block diagram of a park-level gas-fired distributed integrated energy system according to an embodiment of the present invention;

[0021] Figure 3 is a structural block diagram of a carbon dioxide emission reduction calculation device for a park-level gas-fired distributed integrated energy system according to an embodiment of the present invention;

[0022] Figure 4 is a schematic diagram of the structure of a computer-readable storage medium provided according to an embodiment of the present invention;

[0023] Figure 5 is a schematic diagram of the structure of an electronic device provided according to an embodiment of the present invention. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0025] The embodiment of the present invention provides a method for calculating carbon dioxide emission reduction in a park-level gas-fired distributed integrated energy system. Figure 1 As shown, the method comprises the following steps:

[0026] Step S101: Divide the host equipment system and the peak load equipment system according to the park-level gas-fired distributed integrated energy system; specifically, Figure 2 The figure shows the schematic diagram of the structure of the park-level gas-fired distributed integrated energy system. In this system, the fuel input includes solar energy, wind energy, hydropower, natural gas and geothermal energy. The host equipment system includes a renewable energy power generation system, a prime mover power generation system, a refrigeration and heat exchange system and a low-temperature heat exchange system. The peak-shaving heat exchange system includes a large power grid, a power storage system, electric refrigeration, a cold and heat storage tank, a direct-fired lithium bromide unit waste heat boiler and a hot water storage tank. Among them, solar energy, wind energy, hydropower, etc. enter the renewable energy power generation system to generate electricity, and natural gas is input into the prime mover power generation system for combustion to generate electricity. The medium-temperature exhaust gas after power generation enters the refrigeration and heat exchange system, providing refrigerant water in summer and heating water in winter. The low-temperature flue gas after heat exchange enters the low-temperature heat exchange system to provide users with domestic hot water at about 60°C. Geothermal energy also enters the low-temperature heat exchange system to provide thermal energy for users. The peak-shaving equipment system generates electricity for its own use. It is specifically equipped with a power storage system and connected to the power grid for power peak-shaving, equipped with electric refrigeration machines or direct-fired lithium bromide units for cooling peak-shaving, equipped with direct-fired lithium bromide units or waste heat boilers for heating peak-shaving, and equipped with hot water storage tanks for domestic hot water peak-shaving.

[0027] In the park-level gas-fired distributed integrated energy system, energy inputs include natural gas volume and calorific value, solar energy, wind energy, geothermal energy, water energy, and electrical energy, and energy outputs include power supply, cooling, heating, and domestic hot water. The calculation cycle of energy input and output can be weekly, monthly, quarterly, and annual.

[0028] Step S102: Determine a benchmark reference system based on the park-level gas-fired distributed integrated energy system, the benchmark reference system including: an electricity substitution system, a cooling substitution system, a heating substitution system and a domestic hot water substitution system; specifically, based on the benchmark reference system, it can include power supply from the power grid, cooling by electric refrigeration machines, heating by gas boilers, and domestic hot water by hot water boilers, wherein the hot water boiler can be a gas boiler or an electric boiler, depending on the specific situation of the park.

[0029] Step S103: Calculate the carbon dioxide emissions during the operation period according to the host device system and the peak-shaving device system; specifically, when calculating the system carbon dioxide emissions, the carbon dioxide emissions within an operation cycle can be calculated. The carbon dioxide emissions of the integrated energy system include the carbon dioxide emissions of the host device system, the carbon dioxide emissions of the peak-shaving device system, and the carbon dioxide emissions generated by the purchased electricity. The carbon dioxide emissions of the integrated energy system can be obtained by summing the three.

[0030] Among them, the carbon dioxide emissions of the host equipment system include the carbon dioxide emissions generated by the combustion of the gas consumed by the host equipment. The carbon dioxide emissions generated by the combustion of the gas consumed by the host equipment are calculated based on the gas consumed by the host equipment, the lower calorific value of the gas and the carbon dioxide emission factor corresponding to the gas; specifically, it can be expressed as:

[0031] PE sys,gas =E sys,gas ×LHV gas ×EF gas

[0032] PE sys,gas The carbon dioxide emissions generated by the combustion of fuel gas consumed by the host equipment, in tCO 2 , E sys,gas The amount of gas consumed by the host equipment, in m 3 ;LHV gas The lower calorific value of the gas, in GJ / m 3 , E.F. gas is the carbon dioxide emission factor corresponding to the gas, in tCO 2 / GJ.

[0033] The carbon dioxide emissions of the peak-shaving equipment system include the carbon dioxide emissions generated by the combustion of the gas consumed by the peak-shaving equipment; the carbon dioxide emissions generated by the combustion of the gas consumed by the peak-shaving equipment are calculated based on the gas consumed by the peak-shaving equipment, the lower calorific value of the gas and the carbon dioxide emission factor corresponding to the gas; specifically, it can be expressed as:

[0034] PE peak,gas =E peak,gas ×LHV gas ×EF gas

[0035] PE peak,gas The carbon dioxide emissions generated by the combustion of gas consumed by the peak load equipment, in tCO 2 ; E peak,gas The amount of gas consumed by the host equipment, in m 3 .

[0036] The carbon dioxide emissions generated by purchased electricity include the carbon dioxide emissions generated by purchased electricity for use; the carbon dioxide emissions generated by purchased electricity for use are calculated based on the amount of electricity purchased from the power grid and the grid emission factor; specifically, it can be expressed as:

[0037] PE grid,y =E grid,y ×EF grid

[0038] PE grid,y The amount of carbon dioxide emissions generated by the purchased electricity, in tCO 2 ; E grid,y The amount of electricity purchased by the system from the grid, in MWh; EF grid is the grid emission factor, in tCO 2 / MWh. For the grid emission factor, it can be calculated using the methodology of "CMS-002-V01 Networked Renewable Energy Generation", or the latest value of 0.6101tCO released by the Ministry of Ecology and Environment can be used. 2 / MWh, which is not limited in this embodiment of the present invention.

[0039] Therefore, the carbon dioxide emissions during the operation period can be calculated by the carbon dioxide emissions generated by the combustion of the gas consumed by the host equipment, the carbon dioxide emissions generated by the combustion of the gas consumed by the peak-shaving equipment, and the carbon dioxide emissions generated by the purchased electricity. Specifically, it can be expressed as:

[0040]

[0041] Step S104: Calculate the carbon dioxide emissions of the benchmark reference system according to the benchmark reference system; specifically, after determining the benchmark reference system, the carbon dioxide emissions of the benchmark reference system can be calculated accordingly. At the same time, since the determined benchmark reference system is an electricity substitution system, a cooling substitution system, a heating substitution system, and a domestic hot water substitution system. The energy output of the comprehensive energy system is electricity, cooling, heating, and domestic hot water; therefore, the carbon dioxide emissions of the benchmark reference system can be calculated based on the energy output.

[0042] Specifically, the carbon dioxide emissions of the benchmark reference system include: the carbon dioxide emissions of the benchmark reference system's power supply calculated according to the electricity substitution system, the carbon dioxide emissions of the benchmark reference system's cooling supply calculated according to the cooling substitution system, the carbon dioxide emissions of the benchmark reference system's heating supply calculated according to the heating substitution system, and the carbon dioxide emissions of the benchmark reference system's domestic hot water supply calculated according to the domestic hot water substitution system.

[0043] Among them, the carbon dioxide emissions of power supply are calculated based on the power supply and the grid emission factor; specifically, it can be expressed as:

[0044] BE ele =E ele ×EF grid

[0045] BE ele is the carbon dioxide emissions of the power supply of the benchmark reference system, in tCO 2 ; E ele It refers to the power supply of the park-level gas-fired distributed integrated energy system, in MWh.

[0046] The CO2 emissions from cooling are calculated based on the cooling capacity, grid emission factor and the refrigeration coefficient of the electric refrigeration machine used in the benchmark reference system; specifically, it can be expressed as:

[0047]

[0048] BE cooling is the carbon dioxide emissions of the cooling capacity of the reference system, in tCO 2 ; E cooling It is the cooling capacity of the park-level gas-fired distributed integrated energy system, in GJ; COP is the refrigeration coefficient of the electric refrigerator used in the benchmark reference system, which can be determined based on actual conditions. In one embodiment, the refrigeration system can be 5 to 8.

[0049] The CO2 emissions from heating are calculated based on the heating capacity, the thermal efficiency of the gas boiler used for heating in the benchmark reference system, and the CO2 emission factor corresponding to the gas; specifically, it can be expressed as:

[0050]

[0051] BE heating is the carbon dioxide emissions from the heating of the benchmark system, in tCO 2 ; E heating is the heating capacity of the park-level gas-fired distributed integrated energy system, in GJ; η he The thermal efficiency of the benchmark reference system using gas boiler heating.

[0052] The carbon dioxide emissions from the domestic hot water supply are calculated based on the domestic hot water supply. Specifically, when the domestic hot water system uses different energy sources, the calculation method of its carbon dioxide emissions is different. Among them, when the domestic hot water system uses a gas boiler, the carbon dioxide emissions from the domestic hot water supply are calculated based on the domestic hot water supply, the carbon dioxide emission factor corresponding to the gas, and the thermal efficiency of the gas boiler; specifically expressed as:

[0053]

[0054] BE hw The carbon dioxide emissions from the domestic hot water supply of the benchmark reference system, in tCO 2 ; where E hw The amount of domestic hot water supplied by the park-level gas-fired distributed integrated energy system, in GJ; η hw,gas The thermal efficiency of the benchmark reference system using a gas boiler to supply domestic hot water.

[0055] When the domestic hot water system uses an electric boiler, the carbon dioxide emissions from the domestic hot water supply are calculated based on the domestic hot water supply, the grid emission factor, and the thermal efficiency of the electric boiler. Specifically, it can be expressed as:

[0056]

[0057] η hw,ele The thermal efficiency of the benchmark reference system using electric boilers to supply domestic hot water.

[0058] Specifically, after determining the carbon dioxide emissions of each reference system, the total carbon dioxide emissions of the reference system can be expressed as:

[0059]

[0060] The total carbon dioxide emissions of the benchmark reference system, in tCO 2 .

[0061] Step S105: Calculate the carbon dioxide emission reduction of the park-level gas-fired distributed integrated energy system based on the carbon dioxide emissions during the operation period and the carbon dioxide emissions of the benchmark reference system. In a specific embodiment, after respectively determining the carbon dioxide emissions during the operation period and the carbon dioxide emissions of the benchmark reference system, the emission reduction of the integrated energy system can be determined by subtracting the two. It can be expressed as:

[0062]

[0063] The carbon dioxide emission reduction calculation method of the park-level gas-fired distributed integrated energy system provided in the embodiment of the present invention divides the host equipment system and the peak-shaving equipment system through the park-level gas-fired distributed integrated energy system, and the corresponding equipment system calculates the carbon dioxide emissions during the operation period; at the same time, the benchmark reference system is determined based on the form of energy output of the integrated energy system, and the carbon dioxide emissions of the benchmark reference system are calculated; finally, the carbon dioxide emission reduction of the integrated energy system is calculated by combining the carbon dioxide emissions during the operation period and the carbon dioxide emissions of the benchmark reference system. Therefore, by determining the benchmark reference system based on the integrated energy system, the calculation method is more reasonable than the calculation method based only on coal-fired power in the prior art, and at the same time, it lays the foundation for the calculation of carbon dioxide emission reduction of the park-level gas-fired distributed integrated energy system under the existing power system conditions, and provides a basis for the calculation of carbon dioxide emission reduction of the park-level gas-fired distributed integrated energy system under the existing power system conditions.

[0064] As an optional implementation of the embodiment of the present invention, a gas-fired distributed integrated energy system at a certain park level in Beijing is taken as an example to illustrate the calculation method. The integrated energy system includes: 2 3.3MW gas internal combustion generator sets, 2 flue gas hot water lithium bromide units, 2 flue gas waste heat heat pump units, 710KW flue gas waste heat deep utilization equipment, 2 lithium bromide direct-fired engines, 2 screw water cooling units, 35m 3 Domestic hot water storage system and 215kW rooftop photovoltaic system. Specifically, the calculation method includes the following steps:

[0065] Step S201: Determine the host equipment system and the peak-shaving equipment system. The host equipment system includes a gas internal combustion generator set, a flue gas hot water lithium bromide unit, a flue gas waste heat heat pump unit, a flue gas waste heat deep utilization device and a rooftop photovoltaic system; the peak-shaving equipment system includes: a lithium bromide direct-fired engine, a screw water-cooling unit, and a domestic hot water thermal storage system. The calculation period is the entire year of 2020. During this calculation period, the operating parameters such as energy input and energy output are specifically the following values:

[0066] Among them, energy input includes: host equipment natural gas consumption 4.4947x10 6 m 3 , the natural gas consumption of auxiliary equipment is 1.1237x10 6 m 3 , calorific value is 0.03394GJ / m 3 , the annual operation hours of photovoltaic power generation are 2000h, and the purchased electricity is 0. The energy output includes the power supply of internal combustion engine 2.1462x10 4 MWh, photovoltaic power supply: 4.3x10 2MWh, cooling capacity is 43661GJ, heating capacity is 30314GJ, and domestic hot water capacity is 10583GJ.

[0067] Step S202: Determine that the benchmark reference system is powered by the grid, uses an electric refrigerator for cooling, and uses a gas boiler for heating and domestic hot water.

[0068] Step S203: Calculate the carbon dioxide emissions of the park-level gas-fired distributed integrated energy system based on the above operating parameters.

[0069] but, Step S204: Calculate the carbon dioxide emissions of the benchmark reference system according to the energy output in the above calculation cycle. The carbon dioxide emissions BE of the power supply of the benchmark reference system calculated is: ele 13356.3tCO 2 ; The refrigeration system COP is 5, then the carbon dioxide emissions of the reference system cooling capacity BE cooling 1479.9tCO 2 ; η he Take 0.9 as the reference system heating CO2 emissions BE heating 1889.6tCO 2 ; η hw,gas Take 0.9 as the reference system's carbon dioxide emissions from domestic hot water supply BE hw 656.7tCO 2 ; Therefore, the total CO2 emissions of the baseline reference system 17382.5tCO 2 ;

[0070] Step S205: Calculate the carbon dioxide emission reduction of the park-level gas-fired distributed integrated energy system based on the carbon dioxide emission of the park-level gas-fired distributed integrated energy system and the carbon dioxide emission of the benchmark reference system. 17382.5-10697.6=6684.9tCO 2 .

[0071] The embodiment of the present invention also provides a carbon dioxide emission reduction calculation device for a park-level gas-fired distributed integrated energy system, such as Figure 3 As shown, the device comprises:

[0072] The division module is used to divide the host equipment system and the peak-shaving equipment system according to the park-level gas distributed integrated energy system; for details, please refer to the relevant description of step S101 in the above method embodiment.

[0073] Determine a benchmark module, which is used to determine a benchmark reference system based on the park-level gas distributed integrated energy system. The benchmark reference system includes: an electricity substitution system, a cooling substitution system, a heating substitution system and a domestic hot water substitution system. For details, see the relevant description of step S102 in the above method embodiment.

[0074] The first emission calculation module is used to calculate the carbon dioxide emissions during the operation period according to the host device system and the peak-shaving device system; for details, please refer to the relevant description of step S103 in the above method embodiment.

[0075] The second emission calculation module is used to calculate the carbon dioxide emissions of the benchmark reference system according to the benchmark reference system; for details, please refer to the relevant description of step S104 in the above method embodiment.

[0076] The emission reduction calculation module is used to calculate the carbon dioxide emission reduction of the park-level gas-fired distributed integrated energy system according to the carbon dioxide emissions during the operation period and the carbon dioxide emissions of the benchmark reference system. For details, see the relevant description of step S105 in the above method embodiment.

[0077] The carbon dioxide emission reduction calculation device for the park-level gas-fired distributed integrated energy system provided by the embodiment of the present invention divides the host equipment system and the peak-shaving equipment system through the park-level gas-fired distributed integrated energy system, and the corresponding equipment system calculates the carbon dioxide emissions during the operation period; at the same time, the benchmark reference system is determined based on the form of energy output of the integrated energy system, and the carbon dioxide emissions of the benchmark reference system are calculated; finally, the carbon dioxide emission reduction of the integrated energy system is calculated by combining the carbon dioxide emissions during the operation period and the carbon dioxide emissions of the benchmark reference system. Therefore, by determining the benchmark reference system based on the integrated energy system, the calculation device is more reasonable than the calculation method based only on coal-fired power in the prior art, and at the same time, it lays the foundation for the calculation of carbon dioxide emission reduction of the park-level gas-fired distributed integrated energy system under the existing power system conditions, and provides a basis for the calculation of carbon dioxide emission reduction of the park-level gas-fired distributed integrated energy system under the existing power system conditions.

[0078] For a detailed description of the functions of the carbon dioxide emission reduction calculation device for a park-level gas-fired distributed integrated energy system provided in an embodiment of the present invention, please refer to the description of the carbon dioxide emission reduction calculation method for a park-level gas-fired distributed integrated energy system in the above embodiment.

[0079] The embodiment of the present invention also provides a storage medium, such as Figure 4As shown, a computer program 601 is stored thereon, and when the instruction is executed by the processor, the steps of the carbon dioxide emission reduction calculation method of the park-level gas distributed integrated energy system in the above embodiment are implemented. The storage medium also stores audio and video stream data, feature frame data, interaction request signaling, encrypted data, and preset data size, etc. Among them, the storage medium can be a disk, an optical disk, a read-only memory (ROM), a random access memory (RAM), a flash memory (Flash Memory), a hard disk (Hard Disk Drive, abbreviated: HDD) or a solid-state drive (SSD), etc.; the storage medium can also include a combination of the above-mentioned types of memory.

[0080] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium, and when the program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, the storage medium can be a disk, an optical disk, a read-only memory (ROM), a random access memory (RAM), a flash memory, a hard disk drive (HDD) or a solid-state drive (SSD), etc.; the storage medium can also include a combination of the above-mentioned types of memory.

[0081] The embodiment of the present invention further provides an electronic device, such as Figure 5 As shown, the electronic device may include a processor 51 and a memory 52, wherein the processor 51 and the memory 52 may be connected via a bus or other means. Figure 5 The example of connecting through bus is taken in the following.

[0082] The processor 51 may be a central processing unit (CPU). The processor 51 may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or a combination of the above chips.

[0083] The memory 52 is a non-transient computer-readable storage medium that can be used to store non-transient software programs, non-transient computer executable programs and modules, such as the corresponding program instructions / modules in the embodiment of the present invention. The processor 51 executes various functional applications and data processing of the processor by running the non-transient software programs, instructions and modules stored in the memory 52, that is, the carbon dioxide emission reduction calculation method of the park-level gas distributed integrated energy system in the above method embodiment is realized.

[0084] The memory 52 may include a program storage area and a data storage area, wherein the program storage area may store an application required for operating the device and at least one function; the data storage area may store data created by the processor 51, etc. In addition, the memory 52 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some embodiments, the memory 52 may optionally include a memory remotely arranged relative to the processor 51, and these remote memories may be connected to the processor 51 via 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.

[0085] The one or more modules are stored in the memory 52 and when executed by the processor 51, perform the following steps: Figure 1 -2 is a method for calculating carbon dioxide emission reduction in a park-level gas-fired distributed integrated energy system in the embodiment shown in FIG.

[0086] For details of the above electronic equipment, please refer to Figure 1 to Figure 2 The corresponding related descriptions and effects in the illustrated embodiments can be understood and will not be repeated here.

[0087] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A method for calculating carbon dioxide emission reduction in a park-level gas-fired distributed integrated energy system, characterized in that: include: Divide the host equipment system and peak load equipment system according to the park-level gas-fired distributed integrated energy system; Determine a benchmark reference system based on the park-level gas-fired distributed integrated energy system, wherein the benchmark reference system includes: an electricity substitution system, a cooling substitution system, a heating substitution system, and a domestic hot water substitution system; Calculate the carbon dioxide emissions during the operation period according to the host equipment system and the peak load equipment system; Calculating the carbon dioxide emissions of the benchmark reference system according to the benchmark reference system; Calculate the carbon dioxide emission reduction of the park-level gas-fired distributed integrated energy system based on the carbon dioxide emissions during the operation period and the carbon dioxide emissions of the benchmark reference system; Before calculating the carbon dioxide emissions of the benchmark reference system according to the benchmark reference system, it also includes: Determine the energy output according to the park-level gas-fired distributed integrated energy system, wherein the energy output includes the power supply, cooling supply, heating supply and domestic hot water supply; Calculating the carbon dioxide emissions of the benchmark reference system according to the benchmark reference system includes: Calculating the carbon dioxide emissions of the power supply of the baseline reference system according to the power replacement system; Calculating carbon dioxide emissions from cooling of a baseline reference system based on the cooling alternative system; Calculating the carbon dioxide emissions of the heating capacity of the baseline reference system according to the heating alternative system; Calculating carbon dioxide emissions from domestic hot water supply by a benchmark reference system according to the domestic hot water supply alternative system; The carbon dioxide emissions during the operation period are calculated according to the host equipment system and the peak load equipment system, including: Calculate the carbon dioxide emissions generated by the combustion of the gas consumed by the host device according to the host device system; Calculate the carbon dioxide emissions generated by the combustion of gas consumed by the peak-shaving equipment according to the peak-shaving equipment system; Calculate the carbon dioxide emissions generated by the purchased electricity based on the purchased electricity; Calculate the carbon dioxide emissions during the operation period based on the carbon dioxide emissions generated by the combustion of the gas consumed by the host equipment, the carbon dioxide emissions generated by the combustion of the gas consumed by the peak-shaving equipment, and the carbon dioxide emissions generated by the purchased electricity; The carbon dioxide emissions generated by the combustion of the gas consumed by the host equipment are calculated based on the gas consumption of the host equipment, the lower calorific value of the gas and the carbon dioxide emission factor corresponding to the gas; The carbon dioxide emissions generated by the combustion of the gas consumed by the peak-shaving equipment are calculated based on the gas consumed by the peak-shaving equipment, the lower calorific value of the gas and the carbon dioxide emission factor corresponding to the gas; The carbon dioxide emissions generated by the purchased electricity are calculated based on the amount of electricity purchased from the power grid and the grid emission factor.

2. The method for calculating carbon dioxide emission reduction in a park-level gas-fired distributed integrated energy system according to claim 1 is characterized in that: CO2 emissions from electricity supply are calculated based on the electricity supply and the grid emission factor; The CO2 emissions from cooling are calculated based on the cooling capacity, grid emission factor and the refrigeration coefficient of the electric chiller used in the benchmark reference system; The CO2 emissions from heating are calculated based on the heating capacity, the thermal efficiency of the gas boiler used for heating in the benchmark reference system, and the CO2 emission factor corresponding to the gas; The carbon dioxide emissions from the domestic hot water supply are calculated based on the domestic hot water supply.

3. The method for calculating carbon dioxide emission reduction in a park-level gas-fired distributed integrated energy system according to claim 2 is characterized in that: The CO2 emissions from domestic hot water supply are calculated based on the domestic hot water supply, including: When the domestic hot water system uses a gas boiler, the carbon dioxide emissions from the domestic hot water supply are calculated based on the domestic hot water supply, the carbon dioxide emission factor corresponding to the gas, and the thermal efficiency of the gas boiler; When the domestic hot water system uses an electric boiler, the carbon dioxide emissions from the domestic hot water supply are calculated based on the domestic hot water supply, the grid emission factor and the thermal efficiency of the electric boiler used.

4. A carbon dioxide emission reduction calculation device for a park-level gas-fired distributed integrated energy system, characterized in that: include: A division module is used to divide the host equipment system and the peak load equipment system according to the park-level gas-fired distributed integrated energy system; A benchmark determination module is used to determine a benchmark reference system according to the park-level gas-fired distributed integrated energy system, wherein the benchmark reference system includes: an electricity substitution system, a cooling substitution system, a heating substitution system, and a domestic hot water substitution system; A first emission calculation module, used to calculate the carbon dioxide emissions during the operation period according to the host equipment system and the peak load equipment system; A second emission calculation module, used for calculating the carbon dioxide emissions of the benchmark reference system according to the benchmark reference system; An emission reduction calculation module, used to calculate the carbon dioxide emission reduction of the park-level gas-fired distributed integrated energy system according to the carbon dioxide emissions during the operation period and the carbon dioxide emissions of the benchmark reference system; Before calculating the carbon dioxide emissions of the benchmark reference system according to the benchmark reference system, it also includes: Determine the energy output according to the park-level gas-fired distributed integrated energy system, wherein the energy output includes the power supply, cooling supply, heating supply and domestic hot water supply; Calculating the carbon dioxide emissions of the benchmark reference system according to the benchmark reference system includes: Calculating the carbon dioxide emissions of the power supply of the baseline reference system according to the power replacement system; Calculating carbon dioxide emissions from cooling of a baseline reference system based on the cooling alternative system; Calculating the carbon dioxide emissions of the heating capacity of the baseline reference system according to the heating alternative system; Calculating carbon dioxide emissions from domestic hot water supply by a benchmark reference system according to the domestic hot water supply alternative system; The carbon dioxide emissions during the operation period are calculated according to the host equipment system and the peak load equipment system, including: Calculate the carbon dioxide emissions generated by the combustion of the gas consumed by the host device according to the host device system; Calculate the carbon dioxide emissions generated by the combustion of gas consumed by the peak-shaving equipment according to the peak-shaving equipment system; Calculate the carbon dioxide emissions generated by the purchased electricity based on the purchased electricity; Calculate the carbon dioxide emissions during the operation period based on the carbon dioxide emissions generated by the combustion of the gas consumed by the host equipment, the carbon dioxide emissions generated by the combustion of the gas consumed by the peak-shaving equipment, and the carbon dioxide emissions generated by the purchased electricity; The carbon dioxide emissions generated by the combustion of the gas consumed by the host equipment are calculated based on the gas consumption of the host equipment, the lower calorific value of the gas and the carbon dioxide emission factor corresponding to the gas; The carbon dioxide emissions generated by the combustion of the gas consumed by the peak-shaving equipment are calculated based on the gas consumed by the peak-shaving equipment, the lower calorific value of the gas and the carbon dioxide emission factor corresponding to the gas; The carbon dioxide emissions generated by the purchased electricity are calculated based on the amount of electricity purchased from the power grid and the grid emission factor.

5. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable the computer to execute the carbon dioxide emission reduction calculation method for the park-level gas distributed integrated energy system as described in any one of claims 1-3.

6. An electronic device, characterized in that: include: A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the carbon dioxide emission reduction calculation method for a park-level gas-fired distributed integrated energy system as described in any one of claims 1 to 3 by executing the computer instructions.

Images