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Modeling and Analysis of Carbon Flow for Zero-Carbon Buildings：a Case Study of Power Supply Stations
CHEN Zhijun, LU Yiming, LIN Xiqiao, LÜ Minghong, WANG Dan
Electric Power Construction ›› 2026, Vol. 47 ›› Issue (1) : 178-193.
PDF(2447 KB)
PDF(2447 KB)
Modeling and Analysis of Carbon Flow for Zero-Carbon Buildings：a Case Study of Power Supply Stations
[Objective] To address the challenges of accurate monitoring and accounting of carbon flows in current building-level energy system carbon emission indices and optimization analysis，this paper proposes a modeling and analysis method for carbon flows in zero-carbon power supply stations. [Methods] First，the connection principles between the load of the power supply station’s load and the upstream power grid，as well as the access method for the DC load of power supply stations，are defined，establishing typical application scenarios for zero-carbon power supply stations. Next，based on the basic network structure of power supply to the station via the transformer area + DC microgrid，a method for calculating the carbon potential at the building-level busbar is proposed. This method comprehensively accounts for factors such as power flow between busbars，renewable energy generation，and the charging and discharging states of energy storage equipment. A model is then developed for allocating and calculating system losses and load carbon flow rates in zero-carbon power supply stations. Based on the measured power at various points and the corresponding busbar carbon potential，carbon flow rates are allocated to system losses and loads according to established principles. The models consider both scenarios of insufficient and surplus renewable energy generation，as well as the impact of energy storage charging and discharging states on carbon potential calculations. Finally，a specific case is presented to demonstrate the detailed process of calculating and allocating the busbar carbon potential and load carbon flow rates in the power supply station. [Conclusions] The calculation results show that when there is insufficient new energy generation，the carbon potential of the AC busbar remains at a maximum of 0.451 kg/kWh； When there is an excess of new energy generation，the carbon potential of the AC busbar drops to a minimum of 0.042 kg/kWh. In addition，energy storage discharge is considered as a power source and has a significant impact on the carbon potential of the DC busbar. [Conclusions] This paper provides theoretical and methodological support for carbon flow analysis in zero-carbon power supply stations，contributing to the advancement of low-carbon operation and energy optimization management in future power supply service centers.
zero-carbon power supply station / busbar carbon potential / carbon flow rate / loss allocation
| [1] |
李灏恩, 姜雨萌, 戚宇辰, 等. 碳中和目标下电力需求预测体系构建及华东区域电力需求发展趋势研究[J]. 电网与清洁能源, 2024, 40(2): 30-36.
|
| [2] |
贾巍, 方兵华, 雷才嘉, 等. 一流城市配电网“源网荷储充”协调优化控制策略[J]. 机电工程技术, 2021, 50(6): 93-97, 203.
|
| [3] |
苏舟, 钟鸣睿, 王喆, 等. 基于全生命周期的广义源网荷储一体化的电力系统协调优化配置研究[J]. 电网与清洁能源, 2024, 40(8): 74-84.
|
| [4] |
陆雯, 王舒颦, 章丽娜, 等. 考虑现货市场价格不确定性的市场化用户中长期合同电量曲线分解策略[J]. 浙江电力, 2024, 43(7): 120-128.
|
| [5] |
冯国会, 吴苏洋, 常莎莎. 零碳建筑及其关键技术分析[J]. 节能, 2023, 42(5): 68-72.
|
| [6] |
周天睿, 康重庆, 徐乾耀, 等. 电力系统碳排放流分析理论初探[J]. 电力系统自动化, 2012, 36(7): 38-43, 85.
|
| [7] |
周天睿, 康重庆, 徐乾耀, 等. 电力系统碳排放流的计算方法初探[J]. 电力系统自动化, 2012, 36(11): 44-49.
|
| [8] |
周天睿, 康重庆, 徐乾耀, 等. 碳排放流在电力网络中分布的特性与机理分析[J]. 电力系统自动化, 2012, 36(15): 39-44.
|
| [9] |
陈丽霞, 孙弢, 周云, 等. 电力系统发电侧和负荷侧共同碳责任分摊方法[J]. 电力系统自动化, 2018, 42(19): 106-111.
|
| [10] |
汪超群, 陈懿, 文福拴, 等. 电力系统碳排放流理论改进与完善[J]. 电网技术, 2022, 46(5): 1683-1693.
|
| [11] |
|
| [12] |
|
| [13] |
With the acceleration of urbanization, urban multi-energy systems (UMESs) generate more and more carbon emissions, causing severe environmental issues. The carbon generated by UMESs includes not only emissions from the consumption of fossil fuels for electricity generation during operation phases, but also those from the transportation, extraction, and recycling of materials during construction phases. Meanwhile, as carbon emissions are delivered with the energy flow among devices in the UMES, they are distributed differently across devices. Under this background, analyzing the carbon emissions of UMESs considering different life-cycle phases (i.e., operation and construction) and carbon flow characteristics is essential for carbon reduction and environmental protection. Considering that, a novel framework for tracing and evaluating life-cycle carbon emissions of UMESs is proposed in this paper. Firstly, the carbon emission models of different devices in UMESs, including energy sources and energy hub (EH), are established considering both the construction and operation phases. On this basis, the carbon flow matrixes of EHs coupled with the energy flow model are formulated to trace the distribution of life-cycle carbon emissions in UMESs. Moreover, different evaluation indices including the device carbon distribution factor (DCDF) and consumer carbon distribution factor (CCDF) are proposed to quantify the carbon emissions of devices and consumers in UMESs. The case study results based on a typical test UMES are presented to verify the effectiveness of the proposed framework. The analysis results of the test system show that about 60% of carbon emissions are delivered to electricity loads and the construction-produced carbon emissions of energy sources and EH devices account for nearly 35% of total carbon emissions at some periods.
|
| [14] |
张玉敏, 孙鹏凯, 吉兴全, 等. 考虑扩展碳排放流的综合能源系统低碳经济调度[J]. 电网技术, 2023, 47(8): 3174-3191.
|
| [15] |
胡治国, 李永杰, 张磊冲. 基于混合储能荷电状态的光伏直流微网系统能量分配策略[J]. 电源技术, 2024, 48(2): 337-344.
针对混合储能系统在平抑光伏波动以及负荷投切时荷电状态(SOC)易越限问题,提出一种基于混合储能SOC的多模式协调控制策略。在传统低通滤波功率分配的基础上,提出一种基于超级电容荷电状态的动态功率修正策略,使超级电容出力后SOC向安全状态恢复;同时,为避免蓄电池频繁切换充放电状态,在其响应环节加入优化后的延时控制。此外,根据光伏出力情况、混合储能SOC,设计出满足直流微网系统动态平衡的六种运行模式,实时调节各储能单元出力情况。在MATLAB/Simulink中搭建了光伏直流微网混合储能系统仿真模型,仿真结果表明所提策略在各工况下均能稳定运行,有效延长了储能介质使用寿命。
A multi-mode coordinated control strategy based on hybrid energy storage <em>SOC</em> was proposed to solve the problem that <em>SOC</em> is easy to exceed the limit when the hybrid energy storage system suppresses the photovoltaic fluctuations and load switching. On the basis of traditional low-pass filter power allocation, a dynamic power correction strategy was proposed based on the state of charge of the super capacitor to restore the <em>SOC</em> to a safe state after the super capacitor was put into operation. At the same time, in order to avoid frequently switching between charging and discharging states of the battery, the optimized delay control was added into its response link. In addition, according to photovoltaic output and hybrid energy storage <em>SOC</em>, six operation modes meeting the dynamic balance of DC microgrid system were designed to adjust the output of each energy storage unit in real time. A simulation model of photovoltaic DC microgrid hybrid energy storage system was built in MATLAB/Simulink. The simulation results show that the proposed strategy can operate stably under all working conditions, effectively extending the service life of the energy storage medium.
|
| [16] |
叶清泉, 吴旭光, 杨兴曦, 等. 面向直流微网的光伏及固定-移动混合储能的双时间尺度容量配置策略[J]. 现代电力, 2024, 41(4): 747-754.
|
| [17] |
吴高扬. 基于混合储能的交直流微网功率控制策略分析[D]. 济南: 山东大学, 2020.
|
| [18] |
赵宪. 交直流混合微网的关键技术研究[D]. 长春: 长春工业大学, 2020.
|
| [19] |
曹逸滔, 王丹, 贾宏杰, 等. 计及站-网损耗分摊的区域综合能源系统碳排放流计算方法[J]. 电力系统自动化, 2024, 48(12): 14-23.
|
| [20] |
谢敏, 李弋升, 黄莹, 等. 零碳电力用户网购绿电消纳量测算方法及市场机制[J]. 南方电网技术, 2025, 19(2): 135-148.
|
| [21] |
张时聪, 王珂, 徐伟. 绿色电力交易与碳排放交易在零碳建筑中的应用研究[J]. 建筑科学, 2024, 40(2): 1-11.
|
| [22] |
张帅. 计及分布式电源的配电网网损分摊方法[D]. 济南: 济南大学, 2020.
|
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