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Risk alleviation and social welfare maximization by the placement of fuel cell and UPFC in a renewable integrated system 在可再生综合系统中安置燃料电池和 UPFC 以降低风险并实现社会福利最大化
IF 3.4 4区 工程技术 Q3 ENERGY & FUELS Pub Date : 2024-08-29 DOI: 10.3389/fenrg.2024.1428458
Subhojit Dawn, Shreya Shree Das, M. Ramesh, G. Seshadri, Sai Ram Inkollu, Thandava Krishna Sai Pandraju, Umit Cali, Taha Selim Ustun
The depletion of conventional energy sources has led to an increase in interest in renewable energy across the globe. The usage of renewable energy has lowered economic risk in the electricity markets. This study presents an approach to utilize solar photovoltaic as a renewable energy source, fuel cells as the energy storage system, and Flexible AC Transmission networks (FACTS) to reduce system risk in deregulated networks. The difference between real and expected renewable energy data is the primary cause of disequilibrium pricing (DP) in the renewable energy-integrated system. Integration of the FCs with a Unified Power Flow Controller (UPFC) can play an important role in coping with the disequilibrium pricing, emphasizing optimizing profitability and societal welfare in a deregulated environment. The paper also evaluates the system voltage outline and LBMP (location-based marginal pricing) scenarios, both with and without the integration of solar power. Two distinct factors, i.e., Bus Sensitivity Index (BSI) and Line Congestion Factor (LCF), have been proposed to identify the key buses and lines for solar power and Unified Power Flow Controller installation in the system. The study also employs conditional-value-at-risk (CVaR) and value-at-risk (VaR) to assess the system’s risk. Using a real-time IEEE 39-bus New England system, multiple optimization algorithms including Sequential Quadratic Programming and the Slime Mould Algorithm (SMA) are employed to estimate the financial risk of the considered system. This analysis demonstrates that the risk coefficient values improve with the placement of UPFC and fuel cells in the renewable incorporated system.
传统能源的枯竭导致全球各地对可再生能源的兴趣与日俱增。可再生能源的使用降低了电力市场的经济风险。本研究提出了一种利用太阳能光伏作为可再生能源、燃料电池作为储能系统以及柔性交流输电网络(FACTS)的方法,以降低放松管制网络中的系统风险。实际可再生能源数据与预期可再生能源数据之间的差异是造成可再生能源集成系统不平衡定价(DP)的主要原因。将 FC 与统一功率流控制器(UPFC)集成在一起可在应对不平衡定价方面发挥重要作用,强调在放松管制的环境中优化盈利能力和社会福利。本文还评估了系统电压大纲和 LBMP(基于位置的边际定价)方案,包括集成和不集成太阳能发电。本文提出了两个不同的因素,即总线敏感性指数 (BSI) 和线路拥塞系数 (LCF),以确定系统中安装太阳能发电和统一功率流控制器的关键总线和线路。研究还采用了条件风险值(CVaR)和风险值(VaR)来评估系统风险。利用实时 IEEE 39 总线新英格兰系统,采用包括序列二次编程和粘液模算法 (SMA) 在内的多种优化算法来估算所考虑系统的财务风险。分析表明,随着 UPFC 和燃料电池在可再生集成系统中的应用,风险系数值会有所提高。
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引用次数: 0
Research on the heat transfer model of double U-pipe ground heat exchanger based on in-situ testing 基于原位测试的双 U 型管地面换热器传热模型研究
IF 3.4 4区 工程技术 Q3 ENERGY & FUELS Pub Date : 2024-08-29 DOI: 10.3389/fenrg.2024.1442185
Ruifeng Wang, Mingchuan Shi, Ke Zhu, Jun Yu, Wei Ren, Guohong Yan, Zhiqiang Yin, Shujie Gao
The Double U-pipe ground heat exchanger, known for its simple process, cost-effectiveness, high heat exchange efficiency, and low thermal resistance, remains the predominant type of ground heat exchanger in today’s shallow geothermal energy development and utilization. In recent years, significant research has focused on the factors influencing heat transfer and the heat exchange performance of Double U-pipe ground heat exchangers through experimental testing methods. However, studies that integrate numerical simulation with in situ testing have been less common. Utilizing the cylindrical heat source model theory and the results of regional in situ thermal response tests, this paper develops a Double U-pipe ground heat transfer model by establishing physical, mathematical, and heat transfer geometric models. It evaluates the effects of varying inlet temperatures, flow rates, and initial ground temperatures on heat exchange efficiency under heating conditions. The results confirm the accuracy of the Double U-pipe ground heat exchanger model based on in situ testing. They indicate that increasing the temperature differential between the inlet and initial temperatures, raising the initial ground temperature, and moderately enhancing the flow rate can improve the system’s heat exchange efficiency.
双 U 管地热交换器以其工艺简单、成本效益高、热交换效率高、热阻小而著称,仍是当今浅层地热能开发利用中最主要的地热交换器类型。近年来,通过实验测试方法对双 U 型管地热交换器的传热影响因素和热交换性能进行了大量研究。然而,将数值模拟与现场测试相结合的研究却并不多见。本文利用圆柱热源模型理论和区域原位热响应测试结果,通过建立物理、数学和传热几何模型,开发了双 U 型管地面传热模型。它评估了在供暖条件下,不同的入口温度、流速和初始地温对热交换效率的影响。结果证实了基于现场测试的双 U 型管地热交换器模型的准确性。结果表明,增大入口温度与初始温度之间的温差、提高初始地温以及适度提高流速可以提高系统的热交换效率。
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引用次数: 0
Drone image recognition and intelligent power distribution network equipment fault detection based on the transformer model and transfer learning 基于变压器模型和迁移学习的无人机图像识别与智能配电网设备故障检测
IF 3.4 4区 工程技术 Q3 ENERGY & FUELS Pub Date : 2024-08-29 DOI: 10.3389/fenrg.2024.1364445
Jiayong Zhong, Yongtao Chen, Jin Gao, Xiaohong Lv
In today’s era of rapid technological advancement, the emergence of drone technology and intelligent power systems has brought tremendous convenience to society. However, the challenges associated with drone image recognition and intelligent grid device fault detection are becoming increasingly significant. In practical applications, the rapid and accurate identification of drone images and the timely detection of faults in intelligent grid devices are crucial for ensuring aviation safety and the stable operation of power systems. This article aims to integrate Transformer models, transfer learning, and generative adversarial networks to enhance the accuracy and efficiency of drone image recognition and intelligent grid device fault detection.In the methodology section, we first employ the Transformer model, a deep learning model based on self-attention mechanisms that has demonstrated excellent performance in handling image sequences, capturing complex spatial relationships in images. To address limited data issues, we introduce transfer learning, accelerating the learning process in the target domain by training the model on a source domain. To further enhance the model’s robustness and generalization capability, we incorporate generative adversarial networks to generate more representative training samples.In the experimental section, we validate our model using a large dataset of real drone images and intelligent grid device fault data. Our model shows significant improvements in metrics such as specificity, accuracy, recall, and F1-score. Specifically, in the experimental data, we observe a notable advantage of our model over traditional methods in both drone image recognition and intelligent grid device fault detection. Particularly in the detection of intelligent grid device faults, our model successfully captures subtle fault features, achieving an accuracy of over 90%, an improvement of more than 17% compared to traditional methods, and an outstanding F1-score of around 91%.In summary, this article achieves a significant improvement in the fields of drone image recognition and intelligent grid device fault detection by cleverly integrating Transformer models, transfer learning, and generative adversarial networks. Our approach not only holds broad theoretical application prospects but also receives robust support from experimental data, providing strong support for research and applications in related fields.
在当今科技飞速发展的时代,无人机技术和智能电力系统的出现为社会带来了极大的便利。然而,无人机图像识别和智能电网设备故障检测所面临的挑战也越来越大。在实际应用中,快速准确地识别无人机图像和及时发现智能电网设备故障,对于确保航空安全和电力系统的稳定运行至关重要。本文旨在整合变压器模型、迁移学习和生成式对抗网络,以提高无人机图像识别和智能电网设备故障检测的准确性和效率。在方法论部分,我们首先采用变压器模型,这是一种基于自我注意机制的深度学习模型,在处理图像序列、捕捉图像中复杂的空间关系方面表现出色。为了解决数据有限的问题,我们引入了迁移学习,通过在源域上训练模型来加速目标域的学习过程。为了进一步增强模型的鲁棒性和泛化能力,我们结合了生成式对抗网络,以生成更具代表性的训练样本。在实验部分,我们使用大量真实无人机图像数据集和智能电网设备故障数据验证了我们的模型。我们的模型在特异性、准确性、召回率和 F1 分数等指标上都有明显改善。具体来说,在实验数据中,我们观察到我们的模型在无人机图像识别和智能电网设备故障检测方面都比传统方法有明显优势。特别是在智能电网设备故障检测中,我们的模型成功捕捉到了细微的故障特征,准确率达到 90% 以上,与传统方法相比提高了 17% 以上,F1 分数达到 91% 左右,表现突出。总之,本文通过巧妙地整合 Transformer 模型、迁移学习和生成式对抗网络,在无人机图像识别和智能电网设备故障检测领域取得了显著的进步。我们的方法不仅具有广阔的理论应用前景,而且得到了实验数据的有力支持,为相关领域的研究和应用提供了有力支撑。
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引用次数: 0
MRGS-LSTM: a novel multi-site wind speed prediction approach with spatio-temporal correlation MRGS-LSTM:一种具有时空相关性的新型多站点风速预测方法
IF 3.4 4区 工程技术 Q3 ENERGY & FUELS Pub Date : 2024-08-29 DOI: 10.3389/fenrg.2024.1427587
Yueguang Zhou, Xiuxiang Fan
The wind energy industry is witnessing a new era of extraordinary growth as the demand for renewable energy continues to grow. However, accurately predicting wind speed remains a significant challenge due to its high fluctuation and randomness. These difficulties hinder effective wind farm management and integration into the power grid. To address this issue, we propose the MRGS-LSTM model to improve the accuracy and reliability of wind speed prediction results, which considers the complex spatio-temporal correlations between features at multiple sites. First, mRMR-RF filters the input multidimensional meteorological variables and computes the feature subset with minimum information redundancy. Second, the feature map topology is constructed by quantifying the spatial distance distribution of the multiple sites and the maximum mutual information coefficient among the features. On this basis, the GraphSAGE framework is used to sample and aggregate the feature information of neighboring sites to extract spatial feature vectors. Then, the spatial feature vectors are input into the long short-term memory (LSTM) model after sliding window sampling. The LSTM model learns the temporal features of wind speed data to output the predicted results of the spatio-temporal correlation at each site. Finally, through the simulation experiments based on real historical data from the Roscoe Wind Farm in Texas, United States, we prove that our model MRGS-LSTM improves the performance of MAE by 15.43%–27.97% and RMSE by 12.57%–25.40% compared with other models of the same type. The experimental results verify the validity and superiority of our proposed model and provide a more reliable basis for the scheduling and optimization of wind farms.
随着对可再生能源需求的不断增长,风能产业正迎来一个非凡增长的新时代。然而,由于风速的高波动性和随机性,准确预测风速仍然是一项重大挑战。这些困难阻碍了风电场的有效管理和并入电网。为解决这一问题,我们提出了 MRGS-LSTM 模型来提高风速预测结果的准确性和可靠性,该模型考虑了多个站点特征之间复杂的时空相关性。首先,mRMR-RF 对输入的多维气象变量进行过滤,计算出信息冗余最小的特征子集。其次,通过量化多个站点的空间距离分布和特征间的最大互信息系数,构建特征图拓扑结构。在此基础上,利用 GraphSAGE 框架对相邻站点的特征信息进行采样和聚合,提取空间特征向量。然后,经过滑动窗口采样,将空间特征向量输入长短期记忆(LSTM)模型。LSTM 模型学习风速数据的时间特征,输出各站点的时空相关性预测结果。最后,通过基于美国德克萨斯州罗斯科风电场真实历史数据的仿真实验,我们证明了与其他同类型模型相比,我们的 MRGS-LSTM 模型的 MAE 性能提高了 15.43%-27.97%,RMSE 提高了 12.57%-25.40%。实验结果验证了我们提出的模型的有效性和优越性,为风电场的调度和优化提供了更可靠的依据。
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引用次数: 0
Active power optimisation scheduling method for large-scale urban distribution networks with distributed photovoltaics considering the regulating capacity of the main network 考虑主网调节能力的大规模分布式光伏城市配电网有功功率优化调度方法
IF 3.4 4区 工程技术 Q3 ENERGY & FUELS Pub Date : 2024-08-29 DOI: 10.3389/fenrg.2024.1450986
Cheng Gong, Wei Wang, Wenhan Zhang, Nan Dong, Xuquan Liu, Yechun Dong, Dongying Zhang
IntroductionWhen a distributed photovoltaic (PV) system has access to a large urban distribution network, the active balance is primarily borne by the main network gas unit; when the scale of the distributed PV system is very large, the main network can only provide limited regulation capacity, and the distribution network must determine the active optimal scheduling strategy.MethodsThis work proposes an active optimization scheduling model for the distribution network by considering the regulation capacity of the main network. In terms of the optimisation objectives, the maximum consumption of the distributed PVs and minimum power fluctuation at the demarcation point of the main distribution network are proposed as the main objectives, while the minimum total exchanged power in a cycle at the main distribution demarcation point and minimum distribution network loss are considered as the secondary objectives. In terms of constraints, it is proposed that the main network’s regulation capacity be characterized by the main network’s gas-fired unit creep constraints. A fast solution method for active optimization of the distribution network is designed herein to formulate the priority control order of the adjustable units according to the dispatch economic performances of various types of adjustable resources in the distribution network; this reduces the number of variables involved in the optimization at each step and improves the optimized solution speed.ResultsFinally, Simulation verification by IEEE 33-node distribution network arithmetic example based on Matlab simulation platform.DiscussionSimulation results show the effectiveness of the method in achieving maximum PV consumption and reflecting the limited regulation capacity of the main grid.
引言当分布式光伏系统接入大型城市配电网时,有功平衡主要由主网燃气机组承担;当分布式光伏系统规模非常大时,主网只能提供有限的调节能力,配电网必须确定有功优化调度策略。在优化目标方面,提出以分布式光伏的最大消耗量和主配电网分界点的最小功率波动为主要目标,以主配电网分界点一个周期内的最小总交换功率和最小配电网损耗为次要目标。在约束条件方面,建议主网调节能力以主网燃气机组爬坡约束条件为特征。本文设计了一种配电网主动优化的快速求解方法,根据配电网中各类可调资源的调度经济性,制定可调机组的优先控制顺序,减少了每一步优化所涉及的变量数量,提高了优化求解速度。最后,基于 Matlab 仿真平台,通过 IEEE 33 节点配电网算例进行了仿真验证。
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引用次数: 0
A model predictive control based MPPT technique for novel DC-DC converter and voltage regulation in DC microgrid 基于模型预测控制的 MPPT 技术,用于直流微电网中的新型直流-直流转换器和电压调节
IF 3.4 4区 工程技术 Q3 ENERGY & FUELS Pub Date : 2024-08-29 DOI: 10.3389/fenrg.2024.1471499
Kunte Abhijit Bhagwan, Udaya Bhasker Manthati, Faisal Alsaif
This work presents a system design for extracting maximum power using the modified maximum power point tracking (MPPT) technique and a novel high-gain DC-DC converter, which was then used to supply a microgrid system with a conventional buck converter. We present a novel structure comprising the MPPT, voltage boosting, and voltage regulating components for a DC microgrid in a single system. The most important features of a photovoltaic (PV) system include a high-gain converter and maximum PV power extraction; considering these, we present a high-gain DC-DC converter that boosts the output voltage to ten times the input voltage. Furthermore, the MPPT technique extracts maximum power from the PV panel based on model predictive control through its better transient response than the conventional incremental conductance method. The MPPT approach was tested with both fixed- and variable-step operations, and the results were compared for load variations. Considering the economics of the system, the proposed approach attempts cost reduction by optimizing the number of sensors to two instead of three. Simulations were conducted under different environmental conditions using MATLAB-Simulink, and the performance differences between the conventional incremental conductance and proposed MPPT-based methods are shown. Next, DC voltage regulation was implemented for the proposed PV and existing systems by considering different load and irradiation conditions while maintaining constant temperature. The simulation results showed the latter system had better performance than the former under different environmental conditions, with persistent results for voltage regulation at different load and irradiation conditions.
本研究介绍了一种利用改进型最大功率点跟踪(MPPT)技术和新型高增益直流-直流转换器提取最大功率的系统设计,该系统随后被用于为使用传统降压转换器的微电网系统供电。我们提出了一种新颖的结构,在单个系统中包含直流微电网的 MPPT、升压和稳压组件。光伏(PV)系统最重要的特点包括高增益转换器和最大光伏功率提取;考虑到这些特点,我们提出了一种高增益 DC-DC 转换器,可将输出电压提升至输入电压的十倍。此外,与传统的增量电导法相比,基于模型预测控制的 MPPT 技术通过更好的瞬态响应从光伏板中提取最大功率。MPPT 方法通过固定和可变步长操作进行了测试,并对负载变化的结果进行了比较。考虑到系统的经济性,所提出的方法试图通过优化传感器数量,将其从三个减少到两个,从而降低成本。使用 MATLAB-Simulink 在不同环境条件下进行了仿真,并显示了传统增量电导和基于 MPPT 的拟议方法之间的性能差异。接下来,通过考虑不同的负载和辐照条件,在保持恒温的情况下,对拟议的光伏系统和现有系统实施了直流电压调节。仿真结果表明,在不同环境条件下,后一种系统的性能优于前一种系统,在不同负载和辐照条件下的电压调节结果持续不变。
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引用次数: 0
Energy cost forecasting and financial strategy optimization in smart grids via ensemble algorithm 通过集合算法优化智能电网中的能源成本预测和财务策略
IF 3.4 4区 工程技术 Q3 ENERGY & FUELS Pub Date : 2024-08-29 DOI: 10.3389/fenrg.2024.1353312
Juanjuan Yang
IntroductionIn the context of energy resource scarcity and environmental pressures, accurately forecasting energy consumption and optimizing financial strategies in smart grids are crucial. The high dimensionality and dynamic nature of the data present significant challenges, hindering accurate prediction and strategy optimization.MethodsThis paper proposes a fusion algorithm for smart grid enterprise decision-making and economic benefit analysis, aiming to enhance decision-making accuracy and predictive capability. The method combines deep reinforcement learning (DRL), long short-term memory (LSTM) networks, and the Transformer algorithm. LSTM is utilized to process and analyze time series data, capturing historical patterns of energy prices and usage. Subsequently, DRL and the Transformer algorithm are employed to further analyze the data, enabling the formulation and optimization of energy purchasing and usage strategies.ResultsExperimental results demonstrate that the proposed approach outperforms traditional methods in improving energy cost prediction accuracy and optimizing financial strategies. Notably, on the EIA Dataset, the proposed algorithm achieves a reduction of over 48.5% in FLOP, a decrease in inference time by over 49.8%, and an improvement of 38.6% in MAPE.DiscussionThis research provides a new perspective and tool for energy management in smart grids. It offers valuable insights for handling other high-dimensional and dynamically changing data processing and decision optimization problems. The significant improvements in prediction accuracy and strategy optimization highlight the potential for widespread application in the energy sector and beyond.
引言 在能源资源稀缺和环境压力的背景下,准确预测智能电网的能源消耗和优化财务策略至关重要。本文提出了一种用于智能电网企业决策和经济效益分析的融合算法,旨在提高决策的准确性和预测能力。该方法结合了深度强化学习(DRL)、长短期记忆(LSTM)网络和变压器算法。LSTM 用于处理和分析时间序列数据,捕捉能源价格和使用的历史模式。实验结果表明,所提出的方法在提高能源成本预测准确性和优化财务策略方面优于传统方法。值得注意的是,在 EIA 数据集上,所提算法的 FLOP 降低了 48.5%,推理时间减少了 49.8%,MAPE 提高了 38.6%。这项研究为智能电网中的能源管理提供了新的视角和工具,并为处理其他高维和动态变化的数据处理和决策优化问题提供了有价值的见解。预测准确性和策略优化方面的重大改进凸显了在能源领域及其他领域广泛应用的潜力。
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引用次数: 0
Prediction of hydrogen consumption scale and hydrogen price based on LEAP model and two-factor learning curve 基于 LEAP 模型和双因素学习曲线的氢气消费规模和氢气价格预测
IF 3.4 4区 工程技术 Q3 ENERGY & FUELS Pub Date : 2024-08-28 DOI: 10.3389/fenrg.2024.1450966
Hongxia Li, Haiguo Yu, Haiting Wang, Xiaokan Gou, Fei Liu, Lixin Li, Qian Wang, Xin Zhang, Yuanyuan Li
Under the dual-carbon target, hydrogen energy, as a zero-carbon secondary energy source, has great scope for replacing fossil feedstocks in the fields of energy, transportation and industry. However, the current research on the competitiveness of hydrogen energy in various fields is not sufficiently addressed. In this paper, we use the LEAP model to predict the future scale of hydrogen use and the two-factor learning curve to predict the trend of hydrogen price change from 2025 to 2050, using Qinghai Province as the research background. At the same time, considering the carbon emission reduction benefits and raw material costs, the competitiveness of hydrogen energy in energy, transportation, industry and other fields in the future is compared. The results show that: 1) The hydrogen load scale in Qinghai Province will grow fast from 2025 to 2030. From 2030 to 2040, it slows under the steady and basic scenarios but remains high under the accelerated one. By 2040, the consumption scales are 1.057 million, 649,000 and 442,000 tons respectively. 2) The price of hydrogen energy will drop rapidly from the current 28 CNY/kg to about 20 CNY/kg in the next 5 years. By 2040, the price of hydrogen energy will be reduced to about 17 CNY/kg. 3) In terms of hydrogen energy competitiveness, when carbon emissions are not taken into account, hydrogen energy is currently competitive in the transportation field. During 2032–2038, it will be competitive in the field of methanol synthesis. By 2040, hydrogen energy will not be competitive in the fields of ammonia synthesis and power/heating. When considering carbon emissions, the competitiveness of hydrogen energy in the transportation field will become greater. The competitive year in the field of methanol synthesis will be 1–2 years ahead. By 2040, it will not be competitive in the field of synthetic ammonia and power/heating, but the gap will be significantly reduced due to the consideration of carbon emissions.
在双碳目标下,氢能作为零碳二次能源,在能源、交通、工业等领域替代化石原料的空间巨大。然而,目前对氢能在各领域竞争力的研究还不够深入。本文以青海省为研究背景,利用LEAP模型预测未来氢能利用规模,并利用双因素学习曲线预测2025-2050年氢能价格变化趋势。同时,综合考虑碳减排效益和原材料成本,比较了氢能未来在能源、交通、工业等领域的竞争力。结果表明1)2025-2030 年,青海省氢能负荷规模将快速增长。从 2030 年到 2040 年,在稳定情景和基本情景下增长放缓,但在加速情景下仍保持较高增长。到 2040 年,消费规模分别为 105.7 万吨、64.9 万吨和 44.2 万吨。2) 未来 5 年,氢能价格将从目前的 28 元/千克快速下降到 20 元/千克左右。到 2040 年,氢能价格将降至约 17 元/千克。3) 从氢能的竞争力来看,在不考虑碳排放的情况下,氢能目前在交通领域具有竞争力。2032-2038 年间,氢能在甲醇合成领域将具有竞争力。到 2040 年,氢能在合成氨和电力/供热领域将不再具有竞争力。如果考虑到碳排放,氢能在运输领域的竞争力将变得更大。甲醇合成领域的竞争年限将提前 1-2 年。到 2040 年,氢能在合成氨和电力/供热领域将不具备竞争力,但由于考虑到碳排放,差距将大大缩小。
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引用次数: 0
Economic optimal dispatch of active distribution network with CCHP multi-microgrid based on analytical target cascading 基于分析目标级联的 CCHP 多微网主动配电网经济优化调度
IF 3.4 4区 工程技术 Q3 ENERGY & FUELS Pub Date : 2024-08-28 DOI: 10.3389/fenrg.2024.1438961
Yongbiao Yang, Dengxin Ai, Li Zhang, Yawen Zheng
When multiple CCHP microgrids are integrated into an active distribution network (ADN), the microgrids and the distribution network serve as distinct stakeholders, making the economic optimal dispatch of the system more complex. This paper proposes a distributed dispatch model of ADN with CCHP multi-microgrid, and refines the objective functions of each region. The analytical target cascading approach (ATC) is employed to model the power transaction as virtual sources/loads, and solve the optimal dispatch in parallel. Case studies demonstrate the proposed distributed model is capable of achieving economic optimization for both stakeholders.
当多个冷热电联供微电网集成到主动配电网(ADN)中时,微电网和配电网作为不同的利益相关者,使系统的经济优化调度变得更加复杂。本文提出了具有冷热电联多微电网的 ADN 分布式调度模型,并细化了各区域的目标函数。采用分析目标级联方法(ATC)将电力交易建模为虚拟源/负载,并行求解优化调度。案例研究表明,所提出的分布式模型能够实现利益相关者双方的经济优化。
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引用次数: 0
A double-layer optimization strategy for distribution networks considering 5G base station clusters 考虑 5G 基站集群的分配网络双层优化策略
IF 3.4 4区 工程技术 Q3 ENERGY & FUELS Pub Date : 2024-08-28 DOI: 10.3389/fenrg.2024.1454382
Zhipeng Lv, Bingjian Jia, Zhenhao Song, Fei Yang, Shan Zhou
The reliability of the power supply for 5G base stations (BSs) is increasing. A large amount of BS backup energy storage (BES) remains underutilized. This study establishes a double-layer optimization distribution network (DN) considering BS clusters. An energy consumption characteristics and scheduling ability model of the BSs was established to address the differences in the characteristics of different traffic flows. A double-tier planning model for BS-joining grid market ancillary services is proposed. The upper-layer model addresses optimal tidal flow problems in DNs to minimize integrated operating costs, while the lower-layer model focuses on BES economic optimization. The double-layer model changes into a single-layer linear model using the Karush–Kuhn–Tucker (KKT) condition and the Big M method. Simulation validation using the IEEE-33 node DN proves that this approach can reduce DN operating costs, regulate voltage fluctuations, and guarantee economical and safe DN operation.
5G 基站(BS)的供电可靠性要求越来越高。大量基站备用储能(BES)仍未得到充分利用。本研究建立了一个考虑到 BS 集群的双层优化配电网络(DN)。针对不同流量特征的差异,建立了 BS 的能耗特征和调度能力模型。提出了 BS 加入电网市场辅助服务的双层规划模型。上层模型解决 DNs 的最优潮流问题,以最小化综合运营成本,而下层模型则侧重于 BES 的经济优化。利用 Karush-Kuhn-Tucker (KKT) 条件和 Big M 方法,双层模型变为单层线性模型。利用 IEEE-33 节点 DN 进行的仿真验证证明,这种方法可以降低 DN 运行成本,调节电压波动,并保证 DN 运行的经济性和安全性。
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Frontiers in Energy Research
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