Carbon metering network system and carbon metering data optimization acquisition method

Abstract

The invention provides a carbon metering network system and a carbon metering data optimization acquisition method. The carbon metering network system comprises a carbon metering data dynamic acquisition and intelligent calibration system, a power generation side carbon metering acquisition unit, a power grid side carbon metering acquisition unit, a user side carbon metering acquisition unit and a power utilization information acquisition system carbon metering master station. According to the carbon metering network system provided by the invention, a dynamic acquisition mechanism is that a fixed-point uploading and active reporting mode is adopted to balance data integrity and transmission efficiency, and abnormal data response speed is improved to a real-time level; based on a parameter dynamic updating mechanism of a carbon emission flow theory, the metering precision is improved; the system scale is flexibly expanded, the fault isolation capability is enhanced, and the reliability is improved.

Description

Technical Field

[0001] The present invention relates to the field of carbon metering, and in particular to a carbon metering network system and a carbon metering data optimization collection method. Background Art

[0002] The power grid connects electricity production and consumption and is the core hub leading electricity carbon emission reduction. Measurement is an important technical basis to ensure the accuracy and reliability of carbon accounting results, and plays a fundamental supporting role in maintaining the fairness and judgment of the carbon trading market. Establishing a real-time, accurate and comprehensive carbon emission measurement system for all aspects of electricity is one of the core contents of the construction of a new power system. It will help to tap the potential for carbon emission reduction in electricity, guide electricity users to interact in carbon reduction, promote the low-carbon transformation of the power economy, and support the healthy development of the carbon market.

[0003] In a power system, carbon emissions flow originates from power generation nodes, flows through the system network, and ultimately flows into load nodes. Therefore, carbon emissions flow is a virtual network flow that is dependent on power flow. The main purpose of carbon emissions flow calculation is to determine the carbon emissions of each load link. Carbon emissions flow calculation is based on power flow calculation. All factors that affect power flow distribution will also affect carbon emissions flow. Furthermore, due to the differences in carbon emission characteristics of power generation units injected into the grid, carbon emissions flow will be affected by the injection units, resulting in flow characteristics that are different from power flow.

[0004] Traditional collection modes cannot respond to abnormal data in real time, put great pressure on massive data transmission, and lack a multi-dimensional anomaly identification mechanism, making it difficult to accurately capture sudden changes in carbon emission characteristics. This leads to large deviations in carbon measurement results and cannot meet the needs of high-precision carbon accounting.

[0005] Therefore, it is necessary to provide a carbon metering network system to solve the above technical problems. Summary of the Invention

[0006] The present invention provides a carbon metering network system, which solves the problems of low data collection efficiency, insufficient metering accuracy and poor system scalability in current carbon metering systems.

[0007] To solve the above technical problems, the present invention provides a carbon metering network system, comprising:

[0008] Carbon metering data dynamic collection and intelligent calibration system, power generation side carbon metering collection unit, grid side carbon metering collection unit, user side carbon metering collection unit and electricity consumption information collection system carbon metering master station;

[0009] The power generation side carbon metering and collection unit, the grid side carbon metering and collection unit, the user side carbon metering and collection unit, and the electricity consumption information collection system carbon metering master station are all wirelessly connected to the transmission end of the carbon metering data dynamic collection and intelligent calibration system;

[0010] The power generation side carbon measurement and collection unit includes a power generation side carbon meter, a gateway meter, a carbon dioxide monitoring terminal and a power generation side carbon measurement and collection terminal;

[0011] The grid-side carbon measurement and collection unit includes a grid-side carbon meter, an outgoing carbon meter and a gateway meter on the opposite side of the incoming line, a sulfur hexafluoride monitoring device, an outgoing line gateway meter, a grid-side carbon measurement and collection terminal, and a hierarchical distributed architecture.

[0012] The user-side carbon measurement and collection unit includes a user-side carbon meter, a plant-station outgoing carbon meter / gateway meter, and a user-side carbon measurement and collection terminal;

[0013] The carbon metering master station of the electricity consumption information collection system includes receiving carbon flow data from all sides, analyzing based on carbon emission flow theory, dynamically adjusting carbon metering parameters and distributing parameters to terminals on all sides.

[0014] Preferably, the power generation side electricity and carbon meter is used to collect electricity data from the upstream gateway meter and carbon emission data of the corresponding unit.

[0015] Preferably, the power generation side carbon metering and collection terminal is used to receive and process power generation side carbon flow data in real time.

[0016] Preferably, the grid-side electricity carbon meter includes a first collection of carbon emission factors, a first collection of gateway meter electricity data, and a first collection of sulfur hexafluoride leakage.

[0017] Preferably, the grid-side carbon metering and collection terminal is used to collect and preliminarily process grid-side carbon flow data.

[0018] Preferably, the user-side electricity carbon meter includes a second collection of carbon emission factors, a second collection of gateway meter electricity data, collection of other energy carbon emissions and collection of self-built power supply access data.

[0019] Preferably, the user-side carbon metering and collection terminal is used to complete the collection and processing of user-side carbon flow data.

[0020] Preferably, the carbon metering master station of the electricity consumption information collection system is used to dynamically adjust parameters according to the carbon flow data status and distribute them to terminals on each side.

[0021] Preferably, the system adopts a hierarchical distributed architecture to achieve distributed collection and centralized management of carbon flow data.

[0022] A method for optimizing the collection of carbon measurement data comprises the following steps:

[0023] S1. Deploy carbon meters and data collection terminals on the power generation side, grid side, and user side to build a carbon metering network and collect carbon flow data at a 15-minute sampling cycle.

[0024] S2. The electricity and carbon meter determines whether the data is greater than the threshold for active upload or whether the rate of change of the carbon emission factor exceeds a specified value. Normal data is uploaded by time period, and abnormal data is time-stamped and actively uploaded.

[0025] S3. The data collected by the collection terminals on each side is uploaded to the carbon measurement master station;

[0026] S4: When the master station does not receive abnormal data, the parameters remain unchanged. When it receives abnormal data, the parameters are recalculated based on the carbon emission flow theory.

[0027] S5. The master station distributes the updated parameters to the acquisition terminals on each side;

[0028] S6. The terminal collects and analyzes the parameters and sends them to the electricity carbon meter to update the metering parameters.

[0029] Compared with related technologies, the carbon metering network system provided by the present invention has the following beneficial effects:

[0030] The present invention provides a carbon metering network system.

[0031] Dynamic collection mechanism: The "fixed-point transmission + active reporting" mode balances data integrity and transmission efficiency, and the response speed of abnormal data is improved to real-time level;

[0032] Intelligent calibration algorithm: Dynamic parameter update mechanism based on carbon emission flow theory improves measurement accuracy;

[0033] Layered distributed architecture: supports flexible system expansion, enhanced fault isolation capabilities, and improved reliability;

[0034] Multi-dimensional anomaly identification: Combining threshold judgment and change rate analysis, it can capture hidden anomalies such as sudden changes in energy structure and ensure measurement reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A structural diagram of a preferred embodiment of a carbon metering network system provided by the present invention;

[0036] Figure 2 This is a detailed structural diagram of the carbon metering and collection unit on the power generation side;

[0037] Figure 3 This is a structural diagram of the grid-side carbon metering and collection unit;

[0038] Figure 4 This is a structural diagram of the user-side carbon metering and collection unit;

[0039] Figure 5 This is a functional architecture diagram of the carbon metering master station of the electricity consumption information collection system;

[0040] Figure 6 Schematic flow chart for optimizing collection methods for carbon accounting data. DETAILED DESCRIPTION

[0041] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0042] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 ,in, Figure 1 A structural diagram of a preferred embodiment of a carbon metering network system provided by the present invention; Figure 2 This is a detailed structural diagram of the carbon metering and collection unit on the power generation side; Figure 3 Figure 4 is a schematic diagram of the structure of the carbon metering and collection unit on the grid side; Figure 5 is a schematic diagram of the structure of the carbon metering and collection unit on the user side; Figure 5 This is a functional architecture diagram of the carbon metering master station of the electricity consumption information collection system; Figure 6 A carbon measurement network system includes:

[0043] Carbon metering data dynamic collection and intelligent calibration system, power generation side carbon metering collection unit, grid side carbon metering collection unit, user side carbon metering collection unit and electricity consumption information collection system carbon metering master station;

[0044] The power generation side carbon metering and collection unit, the grid side carbon metering and collection unit, the user side carbon metering and collection unit, and the electricity consumption information collection system carbon metering master station are all wirelessly connected to the transmission end of the carbon metering data dynamic collection and intelligent calibration system;

[0045] The power generation side carbon measurement and collection unit includes a power generation side carbon meter, a gateway meter, a carbon dioxide monitoring terminal and a power generation side carbon measurement and collection terminal;

[0046] The grid-side carbon measurement and collection unit includes a grid-side carbon meter, an outgoing carbon meter and a gateway meter on the opposite side of the incoming line, a sulfur hexafluoride monitoring device, an outgoing line gateway meter, a grid-side carbon measurement and collection terminal, and a hierarchical distributed architecture.

[0047] The user-side carbon measurement and collection unit includes a user-side carbon meter, a plant-station outgoing carbon meter / gateway meter, and a user-side carbon measurement and collection terminal;

[0048] The carbon metering master station of the electricity consumption information collection system includes receiving carbon flow data from all sides, analyzing based on carbon emission flow theory, dynamically adjusting carbon metering parameters and distributing parameters to terminals on all sides.

[0049] As the top-level management system, the carbon metering data dynamic collection and intelligent calibration system connects the collection units on the power generation side, grid side, user side and the carbon metering master station through wireless transmission to achieve coordinated control and data interaction of all network devices. Its core lies in establishing a closed-loop management mechanism of "collection-transmission-analysis-calibration", and supports a hybrid mode of setting specified time period sampling and real-time reporting of abnormal data.

[0050] Please refer to Figure 2 It is known that the carbon meter on the power generation side is installed at the outgoing bus of the power plant. The active / reactive power data of the upstream gateway meter is collected in real time through current and voltage sensors. At the same time, the carbon emissions of the corresponding unit are calculated through the linkage of thermocouples and carbon dioxide concentration sensors.

[0051] Carbon dioxide monitoring terminal: Deployed in the exhaust duct of the generator set, it uses non-dispersive infrared absorption method to monitor the carbon dioxide concentration in the exhaust gas, and the data is synchronized to the collection terminal on the power generation side.

[0052] The carbon metering and collection terminal on the power generation side is based on the edge computing architecture and integrates a 4G / 5G communication module. It receives data from the electricity carbon meter, gateway meter and carbon dioxide terminal in real time, performs denoising and filtering, and then packages and uploads it to the carbon metering master station according to the specified time period.

[0053] The carbon meter and the gateway meter on the power generation side are connected in parallel to the outgoing busbar through CT / PT. The carbon dioxide monitoring terminal is installed on the exhaust pipe through a flange, and all data are collected at the collection terminal on the power generation side.

[0054] Please refer to Figure 3 It was learned that the grid-side carbon meter was installed on the substation outgoing busbar, and the electricity carbon emission factor of the plant outgoing carbon meter on the opposite side of the incoming line was collected through a two-way metering module. At the same time, the gas leakage of the switch equipment was monitored through a sulfur hexafluoride leakage detector.

[0055] The grid-side carbon meter simultaneously collects data from the meter on the opposite side of the incoming line and the meter at the outgoing line gateway. The sulfur hexafluoride monitoring device is deployed on the top of the switch room, and the grid-side collection terminal is connected to the main station via optical fiber.

[0056] Sulfur hexafluoride monitoring device: Deployed in the high-voltage switch room of a substation, it uses a multi-point array sensor to monitor the sulfur hexafluoride concentration in real time, calculates the leakage rate using a temperature and humidity compensation algorithm, and transmits the data to the grid-side acquisition terminal.

[0057] Grid-side carbon metering and collection terminal: adopts a layered distributed architecture, supports edge node data aggregation, performs preliminary calibration of grid-side carbon emission factors, gateway meter electricity consumption and sulfur hexafluoride leakage data, and uploads them to the main station through the power-dedicated communication network.

[0058] Please refer to Figure 4It is learned that the user-side electricity carbon meter is deployed in the user's incoming line cabinet. In addition to collecting the electricity consumption of the plant station outlet gateway meter, it accesses the online electricity meter data of the user's self-built photovoltaic / energy storage system through the Modbus protocol, and collects energy consumption data of other energy equipment such as natural gas boilers and fuel generators through the RS485 interface.

[0059] User-side carbon metering and collection terminal: supports LoRa wireless networking, collects multi-energy data from the user side, packages it by user type, and uploads it to the master station via broadband carrier.

[0060] The user-side electricity carbon meter is connected to other energy equipment via the RS485 interface and to the self-built power meter via Ethernet, and the data is aggregated to the user-side collection terminal.

[0061] Please refer to Figure 5 The data processing module, based on the Hadoop distributed computing framework, analyzes carbon flow data uploaded by various parties in real time and calculates the carbon emission distribution of each link using a theoretical model of carbon emission flow. When the rate of change of the carbon emission factor is detected, the parameter calibration process is triggered.

[0062] Parameter calibration module: It has a built-in BP neural network algorithm. The input data includes the type of unit on the power generation side, the line loss on the grid side, the energy structure on the user side, etc. It outputs the updated carbon metering parameters and sends them to the collection terminals on each side through an encrypted channel.

[0063] The power generation side electric carbon meter is used to collect the electricity data of the upstream gateway meter and the carbon emission data of the corresponding unit.

[0064] The power generation side carbon metering and collection terminal is used to receive and process power generation side carbon flow data in real time.

[0065] The grid-side electricity carbon meter includes a first collection of carbon emission factors, a first collection of gateway meter electricity data, and a first collection of sulfur hexafluoride leakage.

[0066] The grid-side carbon metering and collection terminal is used to collect and preliminarily process grid-side carbon flow data.

[0067] The user-side electricity carbon meter includes a second collection of carbon emission factors, a second collection of gateway meter electricity data, collection of other energy carbon emissions and collection of self-built power supply access data.

[0068] The user-side carbon metering and collection terminal is used to complete the collection and processing of user-side carbon flow data.

[0069] The carbon metering master station of the electricity consumption information collection system is used to dynamically adjust parameters according to the carbon flow data status and distribute them to terminals on each side.

[0070] The system adopts a hierarchical distributed architecture to realize distributed collection and centralized management of carbon flow data.

[0071] On the power generation side: access data such as the load rate and main steam parameters of the unit's DCS system. When the load rate increases, a dynamic correction model is established in combination with historical carbon emission data to avoid metering errors caused by load fluctuations.

[0072] On the grid side: Parameters such as line transmission power and transformer oil temperature are introduced. When the transmission power of a 220kV line exceeds the rated value, the increase in carbon emissions caused by line losses is automatically corrected.

[0073] User side: The charging and discharging status of the energy storage equipment is collected. When the energy storage system switches from charging to discharging, the carbon emissions of the discharge link are adjusted according to the real-time carbon emission factor of the power grid (discharge carbon emissions = discharge amount × real-time factor).

[0074] Hardware configuration: A high-precision power quality analyzer is used to collect the AC side power of the energy storage converter (PCS), and the charge and discharge status and SOC data of the battery management system are obtained through the CAN bus.

[0075] Algorithm model: Charging dynamic carbon emissions = charging amount × grid real-time factor.

[0076] Data interaction: Energy storage module data is uploaded to the user-side collection terminal via the MQTT protocol. The master station classifies and counts carbon emissions based on the energy storage charging and discharging periods, and provides users with carbon cost optimization suggestions.

[0077] Compared with related technologies, the carbon metering network system provided by the present invention has the following beneficial effects:

[0078] The present invention provides a carbon metering network system.

[0079] Dynamic collection mechanism: The "fixed-point transmission + active reporting" mode balances data integrity and transmission efficiency, and the response speed of abnormal data is improved to real-time level;

[0080] Intelligent calibration algorithm: Dynamic parameter update mechanism based on carbon emission flow theory improves measurement accuracy;

[0081] Layered distributed architecture: supports flexible system expansion, enhanced fault isolation capabilities, and improved reliability;

[0082] Multi-dimensional anomaly identification: Combining threshold judgment and change rate analysis, it can capture hidden anomalies such as sudden changes in energy structure and ensure measurement reliability.

[0083] A method for optimizing the collection of carbon measurement data comprises the following steps:

[0084] S1. Deploy carbon meters and data collection terminals on the power generation side, grid side, and user side to build a carbon metering network and collect carbon flow data at a 15-minute sampling cycle.

[0085] S2. The electricity and carbon meter determines whether the data is greater than the threshold for active upload or whether the rate of change of the carbon emission factor exceeds a specified value. Normal data is uploaded by time period, and abnormal data is time-stamped and actively uploaded.

[0086] S3. The data collected by the collection terminals on each side is uploaded to the carbon measurement master station;

[0087] S4: When the master station does not receive abnormal data, the parameters remain unchanged. When it receives abnormal data, the parameters are recalculated based on the carbon emission flow theory.

[0088] S5. The master station distributes the updated parameters to the acquisition terminals on each side;

[0089] S6. The terminal collects and analyzes the parameters and sends them to the electricity carbon meter to update the metering parameters.

[0090] System Deployment and Sampling (S1): Electricity carbon meters and data collection terminals are deployed on the power generation side, grid side, and user side, forming a star-shaped network topology. The electricity carbon meters synchronously collect raw data such as current, voltage, and carbon dioxide concentration at specified intervals, with a sampling cycle defined as a specific time. Sliding average filtering is used to reduce noise.

[0091] Abnormal Identification and Data Upload (S2-S3): The carbon meter has a built-in threshold comparator. When the collected carbon emissions exceed the rated value or the rate of change of the carbon emission factor exceeds a specified value, it is marked as abnormal data and actively reported to the collection terminal via the TCP / IP protocol after adding a precise time stamp. Normal data is packaged and uploaded at the end of the period. After the collection terminals on each side aggregate the data, it is uploaded to the master station via the power dispatch data network, with transmission delays.

[0092] Intelligent Calibration and Parameter Distribution (S4-S6): Upon receiving abnormal data, the master station activates the carbon emission flow tracking model. For example, if the carbon emission factor of a grid-side line suddenly drops, the system automatically tracks the power source composition of that line. If it detects an increase in the proportion of new energy units connected to the grid, it recalculates the carbon emission factor for that line and distributes the updated factor to the relevant electricity and carbon meter. Parameter distribution uses a breakpoint-resume mechanism to ensure success.

Claims

1. A carbon metering network system, characterized in that: include: Carbon metering data dynamic collection and intelligent calibration system, power generation side carbon metering collection unit, grid side carbon metering collection unit, user side carbon metering collection unit and electricity consumption information collection system carbon metering master station; The power generation side carbon metering and collection unit, the grid side carbon metering and collection unit, the user side carbon metering and collection unit, and the electricity consumption information collection system carbon metering master station are all wirelessly connected to the transmission end of the carbon metering data dynamic collection and intelligent calibration system; The power generation side carbon measurement and collection unit includes a power generation side carbon meter, a gateway meter, a carbon dioxide monitoring terminal and a power generation side carbon measurement and collection terminal; The grid-side carbon measurement and collection unit includes a grid-side carbon meter, an outgoing carbon meter and a gateway meter on the opposite side of the incoming line, a sulfur hexafluoride monitoring device, an outgoing line gateway meter, a grid-side carbon measurement and collection terminal, and a hierarchical distributed architecture. The user-side carbon measurement and collection unit includes a user-side carbon meter, a plant-station outgoing carbon meter / gateway meter, and a user-side carbon measurement and collection terminal; The carbon metering master station of the electricity consumption information collection system includes receiving carbon flow data from all sides, analyzing based on carbon emission flow theory, dynamically adjusting carbon metering parameters and distributing parameters to terminals on all sides.

2. The carbon measurement network system according to claim 1, characterized in that: The power generation side electric carbon meter is used to collect the electricity data of the upstream gateway meter and the carbon emission data of the corresponding unit.

3. The carbon measurement network system according to claim 1, characterized in that: The power generation side carbon metering and collection terminal is used to receive and process power generation side carbon flow data in real time.

4. The carbon measurement network system according to claim 1, characterized in that: The grid-side electricity carbon meter includes a first collection of carbon emission factors, a first collection of gateway meter electricity data, and a first collection of sulfur hexafluoride leakage.

5. The carbon measurement network system according to claim 1, characterized in that: The grid-side carbon metering and collection terminal is used to collect and preliminarily process grid-side carbon flow data.

6. The carbon measurement network system according to claim 1, characterized in that: The user-side electricity carbon meter includes a second collection of carbon emission factors, a second collection of gateway meter electricity data, collection of other energy carbon emissions and collection of self-built power supply access data.

7. The carbon measurement network system according to claim 1, characterized in that: The user-side carbon metering and collection terminal is used to complete the collection and processing of user-side carbon flow data.

8. The carbon measurement network system according to claim 1, characterized in that: The carbon metering master station of the electricity consumption information collection system is used to dynamically adjust parameters according to the carbon flow data status and distribute them to terminals on each side.

9. The carbon measurement network system according to claim 1, characterized in that: The system adopts a hierarchical distributed architecture to realize distributed collection and centralized management of carbon flow data.

10. A method for optimizing the collection of carbon metering data, according to the carbon metering network system according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Deploy carbon meters and data collection terminals on the power generation side, grid side, and user side to build a carbon metering network and collect carbon flow data at a 15-minute sampling cycle. S2. The electricity and carbon meter determines whether the data is greater than the threshold for active upload or whether the rate of change of the carbon emission factor exceeds a specified value. Normal data is uploaded by time period, and abnormal data is time-stamped and actively uploaded. S3. The data collected by the collection terminals on each side is uploaded to the carbon measurement master station; S4: When the master station does not receive abnormal data, the parameters remain unchanged. When it receives abnormal data, the parameters are recalculated based on the carbon emission flow theory. S5. The master station distributes the updated parameters to the acquisition terminals on each side; S6. The terminal collects and analyzes the parameters and sends them to the electricity carbon meter to update the metering parameters.

Images