Energy management system for zero-carbon cabin

Abstract

The invention discloses an energy management system for a zero-carbon cabin, and the system comprises a data collection module which is configured to obtain the energy consumption data of the zero-carbon cabin, the renewable energy power generation amount, and the power grid interaction data in real time; the carbon emission accounting module is configured to calculate the total hidden carbon amount in the whole life cycle of the zero-carbon cabin based on the zero-carbon cabin building model and the building material data, and calculate the running carbon emission amount in real time based on the energy consumption data; the dynamic life cycle evaluation module is configured to dynamically accumulate the total carbon emission from the starting of the zero-carbon cabin to the current moment, and the total carbon emission is the superposition of the total hidden carbon amount in the whole life cycle and the running carbon emission; and the multi-energy collaborative optimization module adopts different energy management strategies based on the calculated total carbon emission.

Description

Technical Field

[0001] The present invention relates to the technical field of zero-carbon cabin energy management, and in particular to an energy management system for a zero-carbon cabin. Background Art

[0002] As global awareness of climate change and environmental protection continues to grow, energy conservation and emission reduction in the building sector have become crucial for achieving sustainable development goals. Against this backdrop, zero-carbon buildings, as an innovative architectural concept, are gaining widespread attention. Zero-carbon buildings aim to achieve near-zero carbon emissions during a building's lifetime through efficient energy management and the use of renewable energy. However, existing zero-carbon building energy management systems still face technical challenges in practical application, requiring further optimization and improvement.

[0003] Existing energy management systems are deficient in carbon emissions monitoring and management. While they can monitor a building's energy consumption and renewable energy generation, they lack the ability to accurately calculate the building's embodied carbon emissions throughout its lifecycle. This makes it difficult to comprehensively assess a building's carbon emissions and achieve precise control and management of them. Furthermore, existing systems have limitations in energy optimization strategies. Faced with complex energy supply and demand conditions, they lack flexible energy management strategies and are unable to dynamically adjust based on real-time carbon emissions data and energy price information. This not only affects energy efficiency but also limits the building's potential to achieve carbon neutrality. Summary of the Invention

[0004] In view of the above-mentioned prior art, the present invention provides an energy management system for a zero-carbon cabin, which mainly solves the technical problems existing in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the technical solution of the embodiment of the present invention is implemented as follows:

[0006] An energy management system for a zero-carbon cabin, the management system comprising:

[0007] A data acquisition module is configured to obtain real-time energy consumption data, renewable energy generation, and grid interaction data of the zero-carbon cabin;

[0008] The carbon emission accounting module is configured to calculate the total embodied carbon of the zero-carbon cabin over its entire life cycle based on the zero-carbon cabin building model and building material data, and to calculate the operating carbon emissions in real time based on energy consumption data;

[0009] The dynamic life cycle assessment module is configured to dynamically accumulate the total carbon emissions from the opening of the zero-carbon cabin to the current moment, where the total carbon emissions are the sum of the total embodied carbon over the entire life cycle and the operating carbon emissions;

[0010] The multi-energy collaborative optimization module adopts different energy management strategies based on the calculated total carbon emissions.

[0011] Optionally, the data module includes a first data acquisition subunit and a second data acquisition subunit.

[0012] The first data collection subunit is configured to obtain real-time electricity consumption data in the zero-carbon cabin;

[0013] The second data acquisition subunit is configured to obtain the power generation of the zero-carbon cabin's own renewable energy power generation system and the power purchase data of the power grid.

[0014] Optionally, the carbon emission accounting module includes an implicit carbon accounting unit and an operational carbon accounting unit.

[0015] The embodied carbon accounting unit is configured to calculate the total embodied carbon content of the zero-carbon cabin over its entire life cycle based on the zero-carbon cabin building model and building material data;

[0016] The operation carbon accounting unit is configured to calculate the operation carbon emissions based on the real-time electricity consumption data.

[0017] Optionally, the method of calculating the total embodied carbon of the zero-carbon cabin over its entire life cycle based on the zero-carbon cabin building model and building materials data specifically includes: presetting a building materials database to store building material types, usage and carbon emission factors in the production stage; and calculating the total embodied carbon over its entire life cycle in combination with the building 3D model.

[0018] Optionally, the calculation of operating carbon emissions based on real-time electricity consumption data specifically includes: multiplying the collected real-time electricity consumption data by the carbon intensity of the power grid in the current hour to obtain real-time carbon emissions.

[0019] Optionally, the dynamic accumulation of total carbon emissions from the time the zero-carbon cabin is activated to the current moment specifically includes:

[0020] Compare the power generation and electricity consumption in the zero-carbon cabin. If the power generation is greater than the electricity consumption, multiply the difference between the power generation and electricity consumption by the current carbon intensity of the power grid to obtain the carbon offset;

[0021] Subtract the carbon offset amount from the total embodied carbon in the entire life cycle to update the current carbon emissions;

[0022] If the sum of the power generation and the energy storage device's stored energy is less than the power consumption, calculate the amount of electricity purchased by the energy storage device during charging, multiply this amount by the grid's current carbon intensity to obtain a first carbon increment. Based on this first carbon increment, update the current carbon emissions.

[0023] If the sum of power generation and energy storage is greater than power consumption, calculate the amount of electricity required from the grid to meet the power consumption. Multiply this amount by the grid's current carbon intensity to obtain a second carbon increment. Based on this second carbon increment, update the current carbon emissions.

[0024] The aforementioned current carbon emissions are cumulatively calculated to ultimately obtain the total carbon emissions from the time the zero-carbon cabin was put into use to the present moment.

[0025] Optionally, the multi-energy collaborative optimization module adopts different energy management strategies based on the calculated total carbon emissions, specifically, when the total carbon emissions are greater than 0, adopting a first energy management strategy, and when the total carbon emissions are less than 0, adopting a second energy management strategy.

[0026] Optionally, the first energy management strategy includes:

[0027] A. If the photovoltaic power generation is greater than or equal to the load demand, the photovoltaic power will be supplied to the load first, and the surplus power will be stored in energy storage or fed back to the grid;

[0028] B. When the grid carbon intensity is greater than the first threshold, the grid is prohibited from purchasing electricity and is forced to use energy storage devices for power supply. When the grid carbon intensity is less than the second threshold, the grid purchase channel is opened, allowing the grid to charge the energy storage devices, and dynamically limit the charging capacity of the energy storage devices.

[0029] Optionally, the second energy management strategy includes:

[0030] a. Prioritize charging energy storage devices to a preset state-of-charge limit, feeding the remaining power back to the grid, and then selling it at a high price during peak hours based on real-time electricity prices or exchanging it for carbon credits through a blockchain platform;

[0031] b. Limit the charge and discharge depth of energy storage equipment to ≤30%, with the upper limit of SOC during charging to 90% and the lower limit of SOC during discharging to 20%;

[0032] c. Charge only when there is surplus photovoltaic power generation and the SOC of the energy storage device is less than 90%, and the charging power does not exceed 70% of the rated power.

[0033] The beneficial effects of the present invention are as follows: the provided energy management system for a zero-carbon cabin achieves precise monitoring and management of the cabin's energy consumption and carbon emissions through the collaborative operation of a data acquisition module, a carbon emission accounting module, a dynamic life cycle assessment module, and a multi-energy collaborative optimization module. The system can acquire energy consumption data and renewable energy power generation in real time, accurately calculate the total embodied carbon and operational carbon emissions over the entire life cycle, and dynamically adjust energy management strategies based on total carbon emissions. This not only improves energy utilization efficiency and reduces carbon emissions, but also achieves sustainable energy utilization through intelligent optimization strategies, providing strong support for the efficient operation of the zero-carbon cabin and having significant economic and environmental benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a module diagram of an energy management system for a zero-carbon cabin in an embodiment of the present application. DETAILED DESCRIPTION

[0035] The technical solution of the present invention is further elaborated in detail below in conjunction with the drawings and specific embodiments of the specification. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. In the following description, reference is made to "some embodiments", which describes a subset of all possible embodiments, but it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments, and can be combined with each other without conflict.

[0036] In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced without one or more of these details. In other instances, certain technical features well known in the art are not described to avoid confusion with the present invention.

[0037] It should be understood that the present invention can be implemented in different forms and should not be interpreted as being limited to the embodiments proposed herein. On the contrary, providing these embodiments will make the disclosure thorough and complete, and will fully convey the scope of the present invention to those skilled in the art. And the purpose of the terms used herein is only to describe specific embodiments and is not intended to limit the present invention. When used herein, the singular forms "one", "an" and "said / the" are also intended to include plural forms, unless the context clearly indicates another way. It should also be understood that the terms "comprising" and / or "comprising" when used in this specification determine the presence of the features, integers, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts and / or groups. When used herein, the term "and / or" includes any and all combinations of the relevant listed items.

[0038] It should also be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "inner," "outer," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0039] In order to fully understand the present invention, a detailed structure will be provided in the following description to illustrate the technical solution proposed by the present invention. Optional embodiments of the present invention are described in detail below. However, in addition to these detailed descriptions, the present invention may also have other implementations.

[0040] Please refer to the attached Figure 1 The present application provides an energy management system for a zero-carbon cabin, the management system comprising:

[0041] A data acquisition module is configured to obtain real-time energy consumption data, renewable energy generation, and grid interaction data of the zero-carbon cabin;

[0042] The carbon emission accounting module is configured to calculate the total embodied carbon of the zero-carbon cabin over its entire life cycle based on the zero-carbon cabin building model and building material data, and to calculate the operating carbon emissions in real time based on energy consumption data;

[0043] The dynamic life cycle assessment module is configured to dynamically accumulate the total carbon emissions from the opening of the zero-carbon cabin to the current moment, where the total carbon emissions are the sum of the total embodied carbon over the entire life cycle and the operating carbon emissions;

[0044] The multi-energy collaborative optimization module adopts different energy management strategies based on the calculated total carbon emissions.

[0045] The energy management system for the zero-carbon cabin provided in this application is designed to achieve efficient and low-carbon management of the cabin's energy. The system obtains the cabin's energy consumption data, renewable energy power generation, and interaction data with the power grid in real time through the data acquisition module, providing basic information for subsequent energy management. The carbon emission accounting module calculates the total amount of embodied carbon throughout its life cycle based on the cabin's architectural model and building materials data, and calculates the carbon emissions during operation in combination with real-time energy consumption data. The dynamic life cycle evaluation module further dynamically accumulates the total carbon emissions from activation to the current moment, and superimposes the total amount of embodied carbon throughout the life cycle with the operating carbon emissions, providing a basis for the formulation of energy management strategies. The multi-energy collaborative optimization module adopts corresponding energy management strategies based on the total carbon emissions. When the total carbon emissions are greater than 0, photovoltaic power generation is prioritized to meet the load demand, and the surplus power is stored in energy storage or fed back to the grid. The grid power purchase and energy storage charging strategies are dynamically adjusted according to the grid carbon intensity. When the total carbon emissions are less than 0, the energy storage equipment is prioritized to be charged to the preset upper limit, and the remaining power is fed back to the grid. It is sold at a high price or exchanged for carbon credits based on the real-time electricity price. At the same time, the charge and discharge depth of the energy storage equipment is restricted. Charging is only carried out when there is surplus photovoltaic power generation and the charge state of the energy storage equipment meets the conditions, so as to achieve optimal energy allocation and effective control of carbon emissions, thereby ensuring that the energy management of the zero-carbon cabin is efficient and environmentally friendly.

[0046] In an optional embodiment, the data module includes a first data acquisition subunit and a second data acquisition subunit.

[0047] The first data collection subunit is configured to obtain real-time electricity consumption data in the zero-carbon cabin;

[0048] The second data acquisition subunit is configured to obtain the power generation of the zero-carbon cabin's own renewable energy power generation system and the power purchase data of the power grid.

[0049] Specifically, the first data acquisition subunit is mainly used to obtain real-time electricity consumption data in the zero-carbon cabin. By connecting to the electric meter or corresponding power monitoring equipment inside the cabin, it can accurately collect the electricity consumption information of the cabin at every moment, thereby providing real-time energy consumption data for the energy management system, so as to facilitate subsequent accurate analysis and management of energy usage.

[0050] The second data acquisition subunit is responsible for acquiring the power generation of the zero-carbon cabin's own renewable energy power generation system and the power purchase data from the power grid. In terms of acquiring renewable energy power generation, this subunit is connected to the cabin's photovoltaic power generation system and other renewable energy power generation equipment, monitoring and recording the power generated by the power generation equipment in real time, ensuring that the energy management system can promptly grasp the cabin's own power generation situation. At the same time, to obtain power purchase data from the power grid, the second data acquisition subunit is connected to the grid through an interactive interface, recording the power purchased by the cabin from the grid in real time, and thus providing the energy management system with comprehensive energy interaction data, allowing the system to comprehensively consider the cabin's energy input and output, achieving effective energy management and optimized allocation.

[0051] In an optional embodiment, the carbon emission accounting module includes an implicit carbon accounting unit and an operational carbon accounting unit.

[0052] The embodied carbon accounting unit is configured to calculate the total embodied carbon content of the zero-carbon cabin over its entire life cycle based on the zero-carbon cabin building model and building material data;

[0053] The operation carbon accounting unit is configured to calculate the operation carbon emissions based on the real-time electricity consumption data.

[0054] Specifically, the embodied carbon accounting unit is primarily used to calculate the total embodied carbon of a zero-carbon cabin over its entire life cycle. This calculation is based on the cabin's architectural model and building materials data. Specifically, the unit first pre-sets a building materials database, which stores detailed information such as the type, usage, and carbon emission factors of various building materials during their production phase. For example, the database contains carbon emission factors (in kgCO2e / kg) for building materials such as steel structures, insulation materials, and photovoltaic panels. During the calculation process, the embodied carbon accounting unit, combined with the 3D building model of the zero-carbon cabin, uses preset algorithms and models to access and calculate the data in the building materials database. This results in the total embodied carbon generated throughout the zero-carbon cabin's entire life cycle, from building materials production and transportation to construction. This provides basic data for subsequent carbon emissions assessments. For example, by scanning the QR code or RFID tag of the building materials, the unit automatically obtains the type, usage, and carbon emission data of the building materials during their production phase. Combined with the 3D building model, the unit calculates the total embodied carbon over the entire life cycle: Σ(building material mass × carbon emission factor).

[0055] The operational carbon accounting unit focuses on calculating the zero-carbon cabin's operational carbon emissions based on real-time electricity consumption data. It works by multiplying the real-time electricity consumption data acquired by the data acquisition module with the grid's carbon intensity for the current hour. Grid carbon intensity refers to the carbon emissions generated per unit of electricity during transmission and production on the grid. This data is typically provided by the grid company or estimated through relevant models. Through this calculation, the operational carbon accounting unit can determine the zero-carbon cabin's carbon emissions during operation in real time. The calculation method is: electricity consumption × real-time grid carbon intensity. This allows the energy management system to promptly adjust energy usage strategies and effectively control carbon emissions.

[0056] In an optional embodiment, the dynamic accumulation of total carbon emissions from the start of the zero-carbon cabin to the current moment specifically includes:

[0057] Compare the power generation and electricity consumption in the zero-carbon cabin. If the power generation is greater than the electricity consumption, multiply the difference between the power generation and electricity consumption by the current carbon intensity of the power grid to obtain the carbon offset;

[0058] Subtract the carbon offset amount from the total embodied carbon in the entire life cycle to update the current carbon emissions;

[0059] If the sum of the power generation and the energy storage device's stored energy is less than the power consumption, calculate the amount of electricity purchased by the energy storage device during charging, multiply this amount by the grid's current carbon intensity to obtain a first carbon increment. Based on this first carbon increment, update the current carbon emissions.

[0060] If the sum of power generation and energy storage is greater than power consumption, calculate the amount of electricity required from the grid to meet the power consumption. Multiply this amount by the grid's current carbon intensity to obtain a second carbon increment. Based on this second carbon increment, update the current carbon emissions.

[0061] The aforementioned current carbon emissions are cumulatively calculated to ultimately obtain the total carbon emissions from the time the zero-carbon cabin was put into use to the present moment.

[0062] Specifically, the system first monitors and compares the zero-carbon cabin's power generation and electricity consumption in real time. If power generation exceeds consumption, the system multiplies the difference by the grid's current carbon intensity to calculate a carbon offset. This offset reflects the carbon offset effect of the additional electricity generated by the renewable energy generation system after meeting its own electricity needs. The system then subtracts this offset from the total embodied carbon over the entire lifecycle to determine the current carbon emissions figure. This process reflects the contribution of renewable energy generation to reducing carbon emissions.

[0063] When the sum of electricity generated and stored in the energy storage device is less than electricity consumption, the system calculates the amount of electricity purchased from the grid during the energy storage device's charging process and multiplies this amount by the grid's current carbon intensity to obtain the first carbon increment. This carbon increment reflects the additional carbon emissions incurred by purchasing electricity from the grid during the energy storage device's charging process. Based on this first carbon increment, the system updates the current carbon emissions to accurately reflect the zero-carbon cabin's carbon emissions in this scenario.

[0064] If the sum of power generation and energy storage exceeds power consumption, the system calculates the amount of electricity purchased from the grid after power demand is met and multiplies this by the grid's current carbon intensity to produce a second carbon increment. This carbon increment reflects the carbon emissions incurred by purchasing electricity from the grid after power demand is met. Based on this second carbon increment, the system updates the current carbon emissions to ensure that the carbon emissions calculation accurately reflects actual energy usage. Through these steps, the system can dynamically accumulate and calculate the total carbon emissions from the zero-carbon cabin's activation to the current moment.

[0065] Ideally, a zero-carbon cabin's renewable energy generation system, such as photovoltaics, would consistently generate enough electricity to consistently exceed its electricity consumption. This means the cabin would not only meet its own electricity needs but also generate additional electricity. This additional electricity, through interaction with the grid, could offset some or even all of the total embodied carbon emissions over its lifecycle.

[0066] Specifically, when a Zero Carbon Cabin generates more electricity than it consumes, the system calculates the difference and multiplies it by the grid's current carbon intensity to calculate the carbon offset. This offset is deducted from the total embodied carbon over its entire lifecycle, gradually reducing the Zero Carbon Cabin's cumulative carbon emissions. Over time, if the Zero Carbon Cabin continues to generate carbon offsets, the cumulative total will gradually increase and may eventually exceed the total embodied carbon over its entire lifecycle.

[0067] When the cumulative carbon offsets exceed the total embodied carbon over its entire lifecycle, the Zero Carbon Cabin's total carbon emissions will become negative. This means that the Zero Carbon Cabin not only achieves carbon neutrality during operation, but also provides additional clean energy to the grid through its renewable energy generation system, further offsetting the impact of other carbon emissions. In this case, the Zero Carbon Cabin not only achieves its own zero-carbon goal but also has a positive impact on the carbon emissions of the entire grid, demonstrating its significant advantages in sustainable development and environmental protection.

[0068] In an optional embodiment, the multi-energy collaborative optimization module adopts different energy management strategies based on the calculated total carbon emissions, specifically, when the total carbon emissions are greater than 0, adopting the first energy management strategy, and when the total carbon emissions are less than 0, adopting the second energy management strategy.

[0069] The first energy management strategy includes:

[0070] A. If the photovoltaic power generation is greater than or equal to the load demand, the photovoltaic power will be supplied to the load first, and the surplus power will be stored in energy storage or fed back to the grid;

[0071] B. When the grid carbon intensity is greater than the first threshold, the grid is prohibited from purchasing electricity and is forced to use energy storage devices for power supply. When the grid carbon intensity is less than the second threshold, the grid purchase channel is opened, allowing the grid to charge the energy storage devices, and dynamically limit the charging capacity of the energy storage devices.

[0072] The second energy management strategy includes:

[0073] a. Prioritize charging energy storage devices to a preset state-of-charge limit, feeding the remaining power back to the grid, and then selling it at a high price during peak hours based on real-time electricity prices or exchanging it for carbon credits through a blockchain platform;

[0074] b. Limit the charge and discharge depth of energy storage equipment to ≤30%, with the upper limit of SOC during charging to 90% and the lower limit of SOC during discharging to 20%;

[0075] c. Charge only when there is surplus photovoltaic power generation and the SOC of the energy storage device is less than 90%, and the charging power does not exceed 70% of the rated power.

[0076] Specifically, when total carbon emissions exceed zero, the zero-carbon cabin's cumulative carbon emissions have not yet reached equilibrium, necessitating the implementation of the first energy management strategy to reduce carbon emissions. At this point, if photovoltaic power generation is greater than or equal to the load demand, the system prioritizes photovoltaic power for the load, ensuring full utilization of renewable energy. Excess power is stored in energy storage devices or fed back to the grid, further optimizing energy efficiency. The system also dynamically adjusts based on real-time data on the grid's carbon intensity. When the grid's carbon intensity exceeds the first threshold, to avoid high-carbon electricity input, the system prohibits grid power purchases and forces energy storage devices to provide power, reducing carbon emissions. When the grid's carbon intensity falls below the second threshold, the system opens grid power purchase channels, allowing the grid to charge the energy storage devices. Dynamically limiting the amount of energy storage charged ensures that the energy storage devices charge appropriately under low-carbon emission conditions, thereby achieving optimal energy allocation and effective carbon emission control.

[0077] When total carbon emissions fall below zero, the zero-carbon cabin's cumulative carbon emissions have reached a negative value, effectively offsetting carbon emissions. At this point, a more flexible second energy management strategy can be implemented. This strategy prioritizes charging the energy storage device to a preset upper state of charge limit, ensuring sufficient energy reserves within a safe range. The remaining energy is then fed back to the grid and sold at a higher price during peak hours based on real-time electricity prices to generate higher returns. Alternatively, it can be redeemed for carbon credits through a blockchain platform, effectively converting carbon emissions into economic value. Furthermore, to protect the lifespan and performance of the energy storage device, the system limits the charge and discharge depth to no more than 30%. The upper state of charge (SOC) limit during charging is 90%, and the lower SOC limit during discharging is 20%, ensuring efficient operation within a safe range. Furthermore, the system only charges when there is excess photovoltaic power generation and the energy storage device's SOC is less than 90%, and the charging power does not exceed 70% of the rated power, further optimizing energy efficiency and carbon emissions. By implementing these strategies, the zero-carbon cabin achieves efficient energy management and effective carbon emissions control under varying carbon emission conditions, thereby achieving sustainable development goals.

[0078] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. The scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. An energy management system for a zero-carbon cabin, characterized in that: The management system includes: A data acquisition module is configured to obtain real-time energy consumption data, renewable energy generation, and grid interaction data of the zero-carbon cabin; The carbon emission accounting module is configured to calculate the total embodied carbon of the zero-carbon cabin over its entire life cycle based on the zero-carbon cabin building model and building material data, and to calculate the operating carbon emissions in real time based on energy consumption data; The dynamic life cycle assessment module is configured to dynamically accumulate the total carbon emissions from the opening of the zero-carbon cabin to the current moment, where the total carbon emissions are the sum of the total embodied carbon over the entire life cycle and the operating carbon emissions; The multi-energy collaborative optimization module adopts different energy management strategies based on the calculated total carbon emissions.

2. The energy management system for a zero-carbon cabin according to claim 1, characterized in that: The data module includes a first data acquisition subunit and a second data acquisition subunit. The first data collection subunit is configured to obtain real-time electricity consumption data in the zero-carbon cabin; The second data acquisition subunit is configured to obtain the power generation of the zero-carbon cabin's own renewable energy power generation system and the power purchase data of the power grid.

3. The energy management system for a zero-carbon cabin according to claim 1, characterized in that: The carbon emission accounting module includes an implicit carbon accounting unit and an operational carbon accounting unit. The embodied carbon accounting unit is configured to calculate the total embodied carbon content of the zero-carbon cabin over its entire life cycle based on the zero-carbon cabin building model and building material data; The operation carbon accounting unit is configured to calculate the operation carbon emissions based on the real-time electricity consumption data.

4. The energy management system for a zero-carbon cabin according to claim 3, characterized in that: The method of calculating the total embodied carbon of a zero-carbon cabin over its entire life cycle based on the zero-carbon cabin building model and building materials data specifically includes: presetting a building materials database to store building material types, usage, and carbon emission factors in the production stage; and calculating the total embodied carbon over its entire life cycle in combination with the building 3D model.

5. The energy management system for a zero-carbon cabin according to claim 4, characterized in that: The calculation of the operating carbon emissions based on the real-time electricity consumption data specifically includes: multiplying the collected real-time electricity consumption data by the carbon intensity of the power grid in the current hour to obtain the real-time carbon emissions.

6. The energy management system for a zero-carbon cabin according to claim 1, characterized in that: The dynamic accumulation of total carbon emissions from the opening of the zero-carbon cabin to the current moment specifically includes: Compare the power generation and electricity consumption in the zero-carbon cabin. If the power generation is greater than the electricity consumption, multiply the difference between the power generation and electricity consumption by the current carbon intensity of the power grid to obtain the carbon offset; Subtract the carbon offset amount from the total embodied carbon in the entire life cycle to update the current carbon emissions; If the sum of the power generation and the energy storage device's stored energy is less than the power consumption, calculate the amount of electricity purchased by the energy storage device during charging, multiply this amount by the grid's current carbon intensity to obtain a first carbon increment. Based on this first carbon increment, update the current carbon emissions. If the sum of power generation and energy storage is greater than power consumption, calculate the amount of electricity required from the grid to meet the power consumption. Multiply this amount by the grid's current carbon intensity to obtain a second carbon increment. Based on this second carbon increment, update the current carbon emissions. The aforementioned current carbon emissions are cumulatively calculated to ultimately obtain the total carbon emissions from the time the zero-carbon cabin was put into use to the present moment.

7. The energy management system for a zero-carbon cabin according to claim 6, characterized in that: The multi-energy collaborative optimization module adopts different energy management strategies based on the calculated total carbon emissions, specifically, when the total carbon emissions are greater than 0, adopting the first energy management strategy, and when the total carbon emissions are less than 0, adopting the second energy management strategy.

8. The energy management system for a zero-carbon cabin according to claim 7, characterized in that: The first energy management strategy includes: A. If the photovoltaic power generation is greater than or equal to the load demand, the photovoltaic power will be supplied to the load first, and the surplus power will be stored in energy storage or fed back to the grid; B. When the grid carbon intensity is greater than the first threshold, the grid is prohibited from purchasing electricity and is forced to use energy storage devices for power supply. When the grid carbon intensity is less than the second threshold, the grid purchase channel is opened, allowing the grid to charge the energy storage devices, and dynamically limit the charging capacity of the energy storage devices.

9. The energy management system for a zero-carbon cabin according to claim 8, characterized in that: The second energy management strategy includes: a. Prioritize charging energy storage devices to a preset state-of-charge limit, feeding the remaining power back to the grid, and then selling it at a high price during peak hours based on real-time electricity prices or exchanging it for carbon credits through a blockchain platform; b. Limit the charge and discharge depth of energy storage equipment to ≤30%, with the upper limit of SOC during charging to 90% and the lower limit of SOC during discharging to 20%; c. Charge only when there is surplus photovoltaic power generation and the SOC of the energy storage device is less than 90%, and the charging power does not exceed 70% of the rated power.

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