检索结果-南通市图书馆

Consensus-based Optimal Control Strategy for Multi-microgrid Systems with Battery Degradation Consideration

CSEE Journal of Power and Energy Systems 2024年第5期10卷 1911-1924页

作者： Tonghe Wang Hong Liang Bo He haochen hua Yuchao Qin Junwei Cao Institute of Energy Conversion Chinese Academy of SciencesGuangzhou 510640China Meihua Holdings Group Co. Ltd.Langfang 065001China. Department of Astronautical Science and Technology Space Engineering UniversityBeijing 101416China College of Energy and Electrical Engineering Hohai UniversityNanjing211100China Department of Applied Mathematics and Theoretical Physics University of CambridgeCambridgeCB30WAUK. Beijing National Research Center for Information Science and Technology Tsinghua UniversityBeijing 100084China

Consensus has been widely used in distributed control,where distributed individuals need to share their states with their neighbors through communication links to achieve a common ***,the objectives of existing consensus-based control strategies for energy systems seldom address battery degradation cost,which is an important performance indicator to assess the performance and sustainability of battery energy storage(BES)*** this paper,we propose a consensusbased optimal control strategy for multi-microgrid systems,aiming at multiple control objectives including minimizing battery degradation *** consensus is used to synchronize the ratio of BES output power to BES state-of-charge(SoC)among all microgrids while each microgrid is trying to reach its individual *** order to reduce the pressure of communication links and prevent excessive exposure of local information,this ratio is the only state variable shared between *** our complex nonlinear problem might be difficult to solve by traditional methods,we design a compressive sensing-based gradient descent(CSGD)method to solve the control *** simulation results show that our control strategy results in a 74.24%reduction in battery degradation cost on average compared to the control method without considering battery *** addition,the compressive sensing method causes an 89.12%reduction in computation time cost compared to the traditional Monte Carlo(MC)method in solving the control problem.

关键词： Battery degradation compressive sensing consensus distributed control multi-microgrid

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

碳约束下基于双重博弈的电力零售商售电价格决策优化

引用

中国电力 2024年第5期57卷 126-136页

作者：李方姝余昆陈星莺华昊辰河海大学能源与电气学院江苏南京210098

在碳约束下,市场中的多零售商竞争售电和多用户购电给电力零售商制定售电价格提高自身利润带来了挑战。为解决零售商售电价格制定的问题,提出了在碳约束条件下多电力零售商竞争售电和多用户购电的双重博弈价格决策优化模型。首先,建立... 详细信息

在碳约束下,市场中的多零售商竞争售电和多用户购电给电力零售商制定售电价格提高自身利润带来了挑战。为解决零售商售电价格制定的问题,提出了在碳约束条件下多电力零售商竞争售电和多用户购电的双重博弈价格决策优化模型。首先,建立各市场参与者的决策模型。其次,建立并描述电力零售商的双重博弈架构,其中,各电力零售商间构成非合作博弈,各零售商与各用户间构成主从博弈。然后,采用循环迭代嵌套IPOPT求解器的方法求解零售商的双重博弈问题。最后,通过仿真算例对所提模型进行验证分析。仿真结果表明,通过所提模型寻优合理的售电价格可以实现各零售商自身售电利润的最大化,同时用户也能通过博弈模型得到最优的购电策略,以提升用电综合满意度。

关键词：电力零售商双重博弈碳约束价格决策需求响应

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Multiple Impact Factor Based Accuracy Analysis for Power Quality Disturbance Detection

引用

CSEE Journal of Power and Energy Systems 2023年第1期9卷 88-99页

作者： Zijing Yang haochen hua Junwei Cao Electromechanical Engineering Beijing Institute of Graphic CommunicationBeijing 102600China College of Energy and Electrical Engineering Hohai University 211100China Beijing National Research Center for Information Science and Technology Tsinghua UniversityBeijing 100084China

Nowadays,power quality problems are affecting people’s daily life and production *** an aim to improve disturbance detection accuracy,a novel analysis approach,based on multiple impact factors,is proposed in this ***,a multiple impact factors analysis is implemented in which two perspectives,i.e.,the wavelet analysis and disturbance features are simultaneously *** key factors,including wavelet function,wavelet decomposition level,redundant algorithm,event type and disturbance intensity,and start and end moment of disturbance,have been ***,an impact factor based accuracy analysis algorithm is proposed,through which each factor’s potential impact on disturbance location accuracy is *** transforms,i.e.,the classic wavelet,lifting wavelet and redundant lifting wavelet are employed,and their superiority on disturbance location accuracy is ***,simulations are conducted for *** the proposed method,the wavelet based parameters can be validly selected in order to accurately detect power quality disturbance.

关键词： Disturbance location accuracy impact factors power quality wavelet analysis

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

基于“虚拟碳储存”的需求侧电-碳耦合交易机制

引用

中国电机工程学报 2024年第6期44卷 2131-2143,I0004页

作者：华昊辰辛世禹陈星莺余昆刘迪丁一沈俊河海大学能源与电气学院江苏省南京市210098 清华大学自动化系北京市海淀区100084 浙江大学电气工程学院浙江省杭州市310027 北京理工大学机械与车辆学院北京市海淀区100081

“双碳”目标指引下,电力系统低碳转型势在必行。结合时变价格信号的低碳需求响应可以引导用户调整用电行为降低碳排放。然而,不同用户灵活性差异较大,仅通过价格信号的变化难以引导低灵活性用户实现碳减排;同时,部分高灵活性用户的调... 详细信息

“双碳”目标指引下,电力系统低碳转型势在必行。结合时变价格信号的低碳需求响应可以引导用户调整用电行为降低碳排放。然而,不同用户灵活性差异较大,仅通过价格信号的变化难以引导低灵活性用户实现碳减排;同时,部分高灵活性用户的调节潜力并未被完全释放。为了通过用户间碳排放责任的交易进一步释放需求侧的碳减排潜力,该文提出需求侧电-碳耦合交易机制,旨在通过碳排放责任的再分配进一步释放高灵活性用户的碳减排潜力。但根据比例共享定理,碳排放责任与用电量成固定比例,限制其在用户间的灵活转移,提出“虚拟碳储存”,使储能中电的碳排放强度成为可控变量,实现碳排放责任在用户间的自由转移。以地区电力系统为研究场景,综合考虑电费成本、碳排放成本以及负荷调节成本,引入近端策略优化算法求解用户的最佳用电策略。仿真结果显示,相比用户仅参与传统电力市场,参与电-碳耦合市场并考虑“虚拟碳储存”,可减少31.9%的碳排放,同时显著降低了用户用电成本。

关键词：电-碳耦合交易投标/报价策略需求侧管理虚拟碳储存

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

考虑用能经济性与用户满意度灵活协同的综合能源系统双层优化

引用

电网技术 2024年第10期48卷 4174-4184,I0065-I0067,I0064页

作者：华昊辰吴浩星陈星莺吴星辰余昆河海大学电气与动力工程学院江苏省南京市210098

在含氢能区域综合能源系统参与碳交易的能量协同优化过程中,用户经济性和满意度目标一致性动态变化,给含多决策变量的区域综合能源系统能量协同优化带来了挑战。为此,该文构建了包含氢能梯级利用的冷热电联产系统模型,提出了基于预测平... 详细信息

在含氢能区域综合能源系统参与碳交易的能量协同优化过程中,用户经济性和满意度目标一致性动态变化,给含多决策变量的区域综合能源系统能量协同优化带来了挑战。为此,该文构建了包含氢能梯级利用的冷热电联产系统模型,提出了基于预测平均投票数指标的用户综合需求响应策略,具体地,以上层综合能源运营商为领导者和下层用户聚合商为跟随者构建了主从双层博弈均衡模型,并采用基于成功历史的自适应差分进化算法嵌套CPLEX求解双方收益均衡化的交互策略。仿真结果表明该文所提策略提升了双方收益,且该文采用基于成功历史的自适应差分进化算法的求解时间分别比差分进化算法、遗传算法、自适应遗传算法减少了15.6%,8.6%,4.8%。

关键词：区域综合能源系统能量协同碳交易基于成功历史的自适应差分进化

来源：

维普期刊数据库

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

Performance Modeling for Data Monitoring Services in Smart Grid: A Network Calculus Based Approach

引用

CSEE Journal of Power and Energy Systems 2020年第3期6卷 610-618页

作者： Junwei Cao Yuxin Wan haochen hua Gang Yang Beijing National Research Center for Information Science and Technology Tsinghua UniversityBeijing 100084China College of Energy and Electrical Engineering Hohai UniversityNanjing 211100China

This paper focuses on solving the modeling issues of monitoring system service performance based on the network calculus ***,we formulate the service model of the smart grid monitoring ***,we derive the flow arrival curve based on the incremental process related ***,we develop flow arrival curves for the case of the incremental process being a fractional Gaussian process,and then we obtain the generalized Cauchy *** technical theorems related to network calculus are presented as our main ***,the variance of arrival flow for the continuous time case is *** that the incremental process of network flow is a Gaussian stationary process,and given the auto-correlation function of the incremental process with violation probability,the formula of the arrival curve is *** addition,the overall flow variance under the discrete time case is explicitly *** theoretical results are evaluated in smart grid *** indicate that the generalized Cauchy process outperforms the fractional Gaussian process for our considered problem.

关键词： Fractional Gaussian process generalized Cauchy process monitoring systems network calculus service performance

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Energy Sharing and Frequency Regulation in Energy Network via Mixed H_(2)/H_(∞) Control with Markovian Jump

引用

CSEE Journal of Power and Energy Systems 2021年第6期7卷 1302-1311页

作者： haochen hua Yuchao Qin Zicheng He Liuying Li Junwei Cao the College of Energy and Electrical Engineering Hohai UniversityNanjing 211100China Beijing National Research Center for Information Science and Technology Tsinghua UniversityBeijing 100084China Institute of Information Technology Fudan UniversityShanghai 200433China International Automotive Research Centre WMGUniversity of WarwickCoventryCV47ALUK

In this paper,the problem of mixed optimization for energy sharing and frequency regulation in a typical energy network scenario where energy routers(ERs)interconnected AC microgrids(MGs)is ***-time Markov chains are introduced to describe the switching paths in the power dynamics of *** that the modelling of considered energy network system could be closer to the real-world engineering *** parameter estimation techniques are integrated into the proposed method to achieve better modelling accuracy and controlling *** on the parameters of MG power dynamics,the mixed H_(2)/H_(∞) controllers are obtained via stochastic control *** feasibility and efficacy of the proposed approach are evaluated in numerical examples.

关键词： Energy network microgrids H_(2)/H_(∞)control markov jump

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

基于增强精英保留遗传算法的虚拟微网群动态划分及能量局域自治

引用

中国电机工程学报 2024年第12期44卷 4652-4665,I0006页

作者：华昊辰翟家祥陈星莺王博余昆秦钰超沈俊丁一贺大玮河海大学能源与电气学院江苏省南京市210098 剑桥大学应用数学和理论物理系英国剑桥CB30WA 北京理工大学机械与车辆学院北京市海淀区100081 浙江大学电气工程学院浙江省杭州市310027 清华四川能源互联网研究院四川省成都市610213

互联的多微网系统作为可再生能源利用的有效形式之一,随着“双碳”工作的推进越发受到重视。该文旨在研究基于海量可控设备的优化调节方法,以促进可再生能源充分就地消纳,提高多微网系统运行经济性。然而,对海量可控设备的全局控制将面... 详细信息

互联的多微网系统作为可再生能源利用的有效形式之一,随着“双碳”工作的推进越发受到重视。该文旨在研究基于海量可控设备的优化调节方法,以促进可再生能源充分就地消纳,提高多微网系统运行经济性。然而,对海量可控设备的全局控制将面临“维数灾难”的挑战。现有研究中基于地理分布的分区优化能够实现“降维控制”,但可再生能源出力的波动性与负荷在时间上的变化和空间上的迁移,都会导致固定分区的方法难以适用于多微网系统态势变迁下的能量动态管控。针对上述问题,首先建立微电网动态模型;进而提出通过增强精英保留遗传算法(strengthen elitist genetic algorithm,SEGA)将互联多微网场景划分为多个边界可动态调整的虚拟微网群,并进行能量“局域自治”优化;最后基于改进的IEEE-123节点模型进行仿真,结果显示1 h内动态边界虚拟微网群的总运行成本比固定边界虚拟微网群的总运行成本降低了13.6%,且所采用的SEGA的求解时间比传统遗传算法减少了7.09%。

关键词：多微网系统虚拟微网群动态分区增强精英保留遗传算法(SEGA)

来源：

维普期刊数据库

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

Improved Approximate Minimum Degree Ordering Method and Its Application for Electrical Power Network Analysis and Computation

引用

Tsinghua Science and Technology 2021年第4期26卷 464-474页

作者： Jian Guo Hong Liang Songpu Ai Chao Lu haochen hua Junwei Cao Beijing National Research Center for Information Science and Technology Beijing 100084China Department of Electrical Engineering Tsinghua UniversityBeijing 100084China College of Energy and Electrical Engineering Hohai UniversityNanjing 211100China

Electrical power network analysis and computation play an important role in the planning and operation of the power grid,and they are modeled mathematically as differential equations and network algebraic *** direct method based on Gaussian elimination theory can obtain analytical *** factors affect computing efficiency:the number of nonzero element fillings and the length of elimination *** article constructs mapping correspondence between eliminated tree nodes and quotient graph nodes through graph and quotient graph *** Approximate Minimum Degree(AMD)of quotient graph nodes and the length of the elimination tree nodes are composed to build an Approximate Minimum Degree and Minimum Length(AMDML)*** quotient graph node with the minimum degree,which is also the minimum length of elimination tree node,is selected as the next ordering *** with AMD ordering method and other common methods,the proposed method further reduces the length of elimination tree without increasing the number of nonzero fillings;the length was decreased by about 10%compared with the AMD method.A testbed for experiment was *** efficiency of the proposed method was evaluated based on different sizes of coefficient matrices of power flow cases.

关键词： Approximate Minimum Degree and Minimum Length(AMDML) electrical power network analysis elimination tree numerical solution ordering method

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

On the Pathwise Uniqueness of Solutions of One-dimensional Reflected Stochastic Differential Equations with Jumps

引用

Acta Mathematicae Applicatae Sinica 2024年第1期40卷 149-163页

作者： hua Zhang School of Statistics and Data Science&Key Laboratory of Data Science in Finance and Economics Jiangxi University of Finance and EconomicsNanchang330013China

In this paper, we are concerned with the problem of the pathwise uniqueness of one-dimensional reflected stochastic differential equations with jumps under the assumption of non-Lipschitz continuous coefficients whose... 详细信息

关键词： reflected diffusion processes with jumps pathwise uniqueness local time Meyer It?'s formula

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：