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Optimal Virtual Battery Model for Aggregating Storage-Like Resources with Network Constraints

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CSEE Journal of Power and Energy Systems 2024年第4期10卷 1843-1847页

作者： Zhenfei Tan Ao Yu haiwang zhong Xianfeng Zhang Qing Xia Chongqing Kang Department of Electrical Engineering and Sichuan Energy Internet Research Institute Tsinghua UniversityBeijing 100084China Science and Technology Institute of China Three Gorges Corporation Hubei 430010China

A virtual battery(VB)provides a succinct interface for aggregating distributed storage-like resources(SLR)to interact with a utility-level *** overcome the drawbacks of existing VB models,including conservatism and neglecting network constraints,this paper optimizes the power and energy parameters of VB to enlarge its flexibility *** optimal VB is identified by a robust optimization problem with decision-dependent *** algorithm based on the Benders decomposition is developed to solve this *** proposed method yields the largest VB satisfying constraints of both network and *** studies verify the superiority of the optimal VB in terms of security guarantee and less conservatism.

关键词： Aggregation decision-dependent uncertainty flexibility robust optimization virtual battery

Carbon-neutral pathway to mitigating transport-power grid cross-sector effects

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The Innovation 2024年第3期5卷 27-29页

作者： Jing Ma Huiwen Kong Jianxiao Wang haiwang zhong Bo Li Jie Song Daniel M.Kammen State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources School of Electrical and Electronic EngineeringNorth China Electric Power UniversityBeijing 102206China National Engineering Laboratory for Big Data Analysis and Applications Peking UniversityBeijing 100871China Peking University Ordos Research Institute of Energy Ordos 017000China State Key Laboratory of Power Systems and Generation Equipment Department of Electrical EngineeringTsinghua UniversityBeijing 100084China School of Electrical Engineering Guangxi UniversityNanning 530004China Department of Industrial Engineering and Management College of EngineeringPeking UniversityBeijing 100871China Energy and Resources Group and Goldman School of Public PolicyUniversity of CaliforniaBerkeleyBerkeleyCA 94720USA

Dear Editor,The growing demand for transportation energy has brought increasing challenges to reducing greenhouse gas ***,many countries or regions have proposed solutions to achieve carbon-neutral transportation such as the rapid expansion of the global electric vehicle(EV)***,these benefits are not *** the goal of decarbonization in electricity is achieved,the“pseudo net zero emissions”effect of the transportation sector will inevitably be accompanied by a quiet shifting of carbon responsibility.1 This shift is undoubtedly fatal for both net zero emissions at the national level and carbon responsibility at the industry level;however,the corresponding effects have not yet been clarified.

关键词： neutral doubt shifting

新型电力系统背景下抽水蓄能和新型储能协同发展研究

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全球能源互联网 2024年第4期7卷 363-371页

作者：王雪林钟海旺清华四川能源互联网研究院四川省成都市610213 电力系统及发电设备控制和仿真国家重点实验室(清华大学电机系) 北京市海淀区100084

抽水蓄能和新型储能协同发展对实现能源结构转型有积极推动作用,但适应新型电力系统建设进程的抽水蓄能和新型储能如何协同发展尚无定论。结合新型电力系统不同时间尺度储能需求和储能发展现状分析明确抽水蓄能和新型储能功能定位和发... 详细信息

抽水蓄能和新型储能协同发展对实现能源结构转型有积极推动作用,但适应新型电力系统建设进程的抽水蓄能和新型储能如何协同发展尚无定论。结合新型电力系统不同时间尺度储能需求和储能发展现状分析明确抽水蓄能和新型储能功能定位和发展趋势,并适应新型电力系统建设需求基于规划定位—技术创新—运维管理—运营策略架构提出抽水蓄能和新型储能协同发展建议,为推动储能行业发展决策制定、促进储能行业良性发展提供战略支撑。

关键词：新型电力系统抽水蓄能新型储能协同发展发展阶段

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面向新型电力系统运行的数据-物理融合建模综述

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中国电机工程学报 2024年第13期44卷 5021-5036,I0001页

作者：阮广春何一鎏谭振飞钟海旺清华大学电机工程与应用电子技术系北京市海淀区100084

构建新型电力系统是我国实现碳达峰、碳中和目标的关键,将给电力工业带来深刻变革与挑战。数据-物理融合建模(简称融合建模)是一类新兴的建模技术,能够同时发挥物理机理与数据的价值,有望成为新型电力系统重要的分析工具。为此,该文首... 详细信息

构建新型电力系统是我国实现碳达峰、碳中和目标的关键,将给电力工业带来深刻变革与挑战。数据-物理融合建模(简称融合建模)是一类新兴的建模技术,能够同时发挥物理机理与数据的价值,有望成为新型电力系统重要的分析工具。为此,该文首先梳理融合建模的相关概念与应用场景,讨论近年来国内外的研究趋势与热点。进而从技术特征和融合模式两方面,提出针对融合模型的分析框架。同时,聚焦于新型电力系统运行领域,全方位总结整理融合建模在应对现有技术挑战方面的潜在优势及不足,并展望未来研究与工程实践的重点发展领域。

关键词：新型电力系统高比例可再生能源数据驱动知识驱动人工智能机器学习

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基于云模型综合相似度的电力物联网关键技术综合评价

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上海交通大学学报 2024年第1期58卷 19-29,I0001页

作者：陈连福钟海旺谭振飞阮广春清华大学电力系统及发电设备控制和仿真国家重点实验室电机工程与应用电子技术系北京100084

目前电力物联网关键技术应用的综合评价具有单评价对象的特点,传统评价方法无法适用.为全面评价电力物联网项目建设水平和运营成效,在综合考量电力物联网不同建设和运营阶段及其关键要素基础上,建立电力物联网关键技术综合评价指标体系... 详细信息

目前电力物联网关键技术应用的综合评价具有单评价对象的特点,传统评价方法无法适用.为全面评价电力物联网项目建设水平和运营成效,在综合考量电力物联网不同建设和运营阶段及其关键要素基础上,建立电力物联网关键技术综合评价指标体系,根据其单评价对象场景的特点,提出基于云模型综合相似度的评价模型.通过对逼近理想解排序方法的改造构建单评价对象的决策矩阵,提出以兼顾云模型的形状-距离综合相似度为度量,表征逼近理想解排序方法的相对贴近度,进而实现对单评价对象的精准评价.应用所提方法综合评价某电力物联网示范工程,验证了所提综合评价体系和评价方法的客观性与全面性.

关键词：电力物联网指标体系云模型云模型相似度逼近理想解排序方法

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基于价值替代的电网侧储能规模与结构规划

太阳能学报 2024年第5期45卷 225-231页

作者：彭煜民王木陈满谭振飞钟海旺南方电网调峰调频发电有限公司储能科研院广州510635 清华四川能源互联网研究院成都610000

科学的规划方法有助于储能的健康发展,基于储能替代价值与其自身投资成本实现最优平衡的规划思路,提出基于价值替代的电网侧储能最优规模与结构测算方法。依据一个地区电网运行特性,计算不同规模下储能替代输配电投资、替代调峰容量、... 详细信息

科学的规划方法有助于储能的健康发展,基于储能替代价值与其自身投资成本实现最优平衡的规划思路,提出基于价值替代的电网侧储能最优规模与结构测算方法。依据一个地区电网运行特性,计算不同规模下储能替代输配电投资、替代调峰容量、替代调频备用容量的边际替代价值,构建满足替代需求的储能结构优化模型,计算满足不同功率和能量替代需求下电网侧各类型储能的最优投资组合以及边际投资成本。

关键词：储能规划投资替代价值电网侧储能

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Exploiting Flexibility of Integrated Demand Response to Alleviate Power Flow Violation During Line Tripping Contingency

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Journal of Modern Power Systems and Clean Energy 2023年第6期11卷 1971-1981页

作者： Tong Cheng Zhenfei Tan haiwang zhong IEEE State Key Laboratory of Power Systems the Department of Electrical EngineeringTsinghua UniversityBeijingChina

Multi-energy integrations provide great opportunities for economic and efficient resource utilization. In the meantime, power system operation requires enough flexible resources to deal with contingencies such as transmission line tripping. Besides economic benefits, this paper focuses on the security benefits that can be provided by multi-energy integrations. This paper first proposes an operation scheme to coordinate multiple energy production and local system consumption considering transmission networks. The integrated flexibility model, constructed by the feasible region of integrated demand response(IDR), is then formulated to aggregate and describe local flexibility. Combined with system security constraints, a multi-energy system operation model is formulated to schedule multiple energy production, transmission, and consumption. The effects of local system flexibility on alleviating power flow violations during N-1 line tripping contingencies are then analyzed through a multi-energy system case. The results show that local system flexibility can not only reduce the system operation costs, but also reduce the probability of power flow congestion or violations by approximately 68.8% during N-1 line tripping contingencies.

关键词： Multi-energy system integrated flexibility feasible region integrated demand response N-1 security

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An Efficient Method for Estimating Capability Curve of Virtual Power Plant

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CSEE Journal of Power and Energy Systems 2022年第3期8卷 780-788页

作者： Zhenfei Tan haiwang zhong Xuanyuan Wang Honghai Tang Department of Electrical Engineering State Key Laboratory of Power SystemsTsinghua UniversityBeijingChina Power exchange center State Grid Jibei Electric Power Co.LtdBeijingChina Beijing Power Exchange Center BeijingChina

To incorporate the operating constraints of a virtual power plant(VPP)in transmission-level operation and market clearing,the concept of the VPP capability curve(VPP-CC)is proposed which explicitly characterizes the allowable range of active and reactive power outputs of a VPP.A two-step projection-based calculation framework is proposed to approximate the VPP-CC by the convex hull of critical points on its *** output of the proposed algorithm is concise and can be easily incorporated in the existing system operation and market *** studies based on the IEEE 33 and 123 test feeders show the computational efficiency of the proposed method outperforms existing methods by 4~7 ***,many fewer inequalities are needed to depict the VPP-CC while achieving the comparative approximation accuracy compared to sampling-based methods,which will relieve the communication and computation burden.

关键词： Aggregation model capability curve optimal power flow projection algorithm virtual power plant

Texas Electric Power Crisis of 2021 Warns of a New Blackout Mechanism

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CSEE Journal of Power and Energy Systems 2022年第1期8卷 1-9页

作者： Guanglun Zhang haiwang zhong Zhenfei Tan Tong Cheng Qing Xia Chongqing Kang State Key Laboratory of Power Systems the Department of Electrical EngineeringTsinghua UniversityBeijing 100084China

The Texas electric power crisis that occurred in February 2021 has drawn great attention internationally due to its severity and for not having been *** this rapid communication,we classify the 2021 Texas electric power crisis as an energy insufficiency-caused power crisis,which alerts of a new blackout *** from capacity insufficiencycaused power crises in the past,the Texas electric power crisis of 2021 directly resulted from the long-duration extreme cold weather as well as fundamentally from the insufficiency of sustainable supply capability of *** begin this paper with a brief retrospect of the event and its *** of energy/capacity insufficiency-caused power crises are given,as well as an overview of the supply and demand during the event,based on realistic operation *** simulations are then conducted to reveal the underlying reasons for the power crisis and reveal how to better prepare for the ***,several insights and suggestions on handling the new mode of blackout in the future are proposed and discussed.

关键词： Blackout capacity insufficiency energy insufficiency power crisis Texas electric power crisis 2021