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Blackout Model Based on OPF and its Self-organized Criticality

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Blackout Model Based on OPF and its Self-organized Criticali...

On power system blackout modeling and analysis based on self-organized criticality

第25届中国控制会议

作者： mei Shcngwei,Yadana, Weng Xiaofeng, xue ancheng state key lab of power systems, Dept, of electrical engineering, tsinghua university, beijing 100084, china

＜正＞Based on the essence of self-organized criticality and optimal power flow（OPF）, this paper develops a model to capture the cascading failures and blackouts in power systems, which avoids some shortcomings of existent blackout models. The proposed model contains two dynamics, one is the fast dynamics which simulates the serial blackouts in power system, and the other is the slow dynamics which reflects the growth of the power system. Simulations in IEEE-30 bus system with the proposed model show that, the processing of the cascading and blackout can be captured by the fast dynamics, together with the self-organized criticality property of fast dynamic respect to the micro-scale. Besides, the macro-scale of self-organized criticality of power system can be revealed from the viewpoint of total load demand vs. the total network transfer capability. Furthermore, improving the transmission ability of network could effectively prevent blackout and reduce its risk.

关键词： Blackout model Cascade Failures Optimal power Flow Blackout distribution Self-Organized Criticality

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Science china(Technological Sciences) 2008年第2期51卷 209-219页

作者： mei shengwei xue ancheng ZHANG xueMin state key lab of power System Department of Electrical EngineeringTsinghua UniversityBeijing 100084China Institute of systems Science Chinese Academic of SciencesBeijing 100080China

This paper makes a comprehensive survey on power system blackout modeling and analysis based on SOC (self-organized criticality). Firstly,a generalized SOC theory from the viewpoint of cybernetics is introduced. Then the evolution model of power system and its relative mathematical description,which serves as a concrete example of the proposed generalized SOC,are given. Secondly,five blackout models capturing various critical properties of power systems in different time-scales are listed. Finally,this paper analyzes SOC in power systems,such as,the revelation of criticalities of proposed models in both micro-scale and macro-scale which can be used to assess the security of power system,and cas-cading failures process.

关键词： blackout model self-organized criticality (SOC) cascading failures

Failure analysis on china power grid based on power law

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控制理论与应用（英文版） 2006年第3期4卷 235-238页

作者： Xiaofeng WENG Yiguang HONG ancheng xue shengwei mei state key lab of power systems Department of Electrical Engineering Tsinghua University Beijing 100084 China Institute of systems Science Chinese Academy of Sciences Beijing 100080 China

This paper is concerned with the mechanism of blackouts in china power system from the viewpoint of self-organized criticality. By using two estimation algorithms of scaled window variance （SWV） and rescaled rangestatistics （R/S）, this paper studies the blackout data in china power system during 1988-1997. The result of analysis shows that the blackout data of 1994-1997 coincides well with the autocorrelation. Furthermore, it is found that the function of blackout probability vs. blackout size exhibits power law distribution.

关键词： power system Blackout power law Estimation algorithm

Paving the Way to Smart Micro Energy Grid:Concepts,Design Principles,and engineering Practices

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CSEE Journal of power and Energy systems 2017年第4期3卷 440-449页

作者： shengwei mei Rui Li Xiaodai xue Ying Chen Qiang Lu Xiaotao Chen Carsten D.Ahrens Ruomei Li Laijun Chen state key laboratory of power systems Department of Electrical EngineeringTsinghua UniversityBeijing 100084China key laboratory of Clean Energy School of QiDi(TUS)Renewable EnergyQinghai UniversityXining 810016China Faculty of Civil engineering and Geoinformation(BGG) University of Applied SciencesOldenburg D-26203Germany china Electric power Research Institute Beijing 100192China

The interconnection between initially independent energy infrastructures offers additional system flexibility and *** integration at distribution level simplifies the implementation of the integrated energy system *** paper proposes concepts and design principles of a smart micro energy grid(MEG)for accommodating micro-grids,distributed poly-generation systems,energy storage facilities,and associated energy distribution *** energy management system is responsible for the smart operation of the MEG while supporting multiple criteria,such as safety,economy,and environmental *** realize the vision of the smart MEG,an engineering game theory based energy management system with self-approaching-optimum capability is *** on the proposed concepts,design principles,and energy management system,this paper presents a prototype of china’s first conceptual solar-based smart MEG,established in Qinghai university.

关键词： Energy management engineering game theory self-approaching-optimum smart micro energy grid solar-based conceptual prototype

Energy Management of a Residential Consumer with Uncertain Renewable Generation: A Robust Dual Dynamic Programming Approach

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Energy Management of a Residential Consumer with Uncertain R...

第三十九届中国控制会议

作者： Dangwu Liu Zhongjie Guo Feng Chen Xiaodai xue shengwei mei state Grid Anhui Electric power CO. LTD. state key lab of Control and Simulation of power systems and Generation Equipments Department of Electrical EngineeringTsinghua University

This paper studies the dynamic operation of a residential electric energy system with distributed renewable *** streams among the power grid, local renewable plant, storage unit, and demand are considered;the temporal volatility of renewable generation is described by an uncertainty set, and the optimal operation problem gives rise to a multi-stage robust optimization. To deal with the non-anticipativity issue, the robust model is solved via robust dual dynamic programming（RDDP）approach. The the cost-to-go function is approximated by iteratively updating the upper and lower bounds, which can be obtained from forward-pass and backward pass procedures. Case studies validate the performance and advantage of the proposed method.

关键词： Residential energy management battery energy storage renewable generation uncertainty robust dual dynamic programming

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基于主从博弈的共享储能分时电价策略

智慧电力 2022年第7期50卷 82-88页

作者：张青苗陈来军马恒瑞薛小代梅生伟青海省清洁能源高效利用重点实验室(青海大学新能源光伏产业研究中心) 青海西宁810016 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) 北京100084

为提高共享储能收益,同时兼顾用户用电成本,建立了以储能电站为主导者、社区用户为跟随者的主从博弈模型。储能电站依据历史用户用电情况制定充放电策略,决定分时电价;用户根据主导者提供的分时电价,在充分满足不可转移负荷用能需求前提... 详细信息

为提高共享储能收益,同时兼顾用户用电成本,建立了以储能电站为主导者、社区用户为跟随者的主从博弈模型。储能电站依据历史用户用电情况制定充放电策略,决定分时电价;用户根据主导者提供的分时电价,在充分满足不可转移负荷用能需求前提下,给出用电功率,选择合适的能源服务商。使用KKT最优性条件和线性规划对此博弈模型进行线性化处理,并利用商业求解器对其求解,通过算例分析,对所提方法的合理性进行验证。结果表明:基于主从博弈的共享储能电费定价策略,可使共享储能得到较高的收益,且使用户的支出也得到一定程度的降低。

关键词：共享储能分时电价用电功率主从博弈线性规划

压缩空气储能盐穴储气库注采全过程热力学特性分析

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可再生能源 2019年第4期37卷 618-624页

作者：王国华张学林李智李青松韩月峰薛小代梅生伟清华大学电机系电力系统及发电设备控制和仿真国家重点实验室北京100084 中盐金坛盐化有限责任公司江苏常州213200 河北省电力勘测设计研究院河北石家庄221116 青海大学启迪新能源学院青海西宁810016

压缩空气储能是解决风电、光伏等波动性可再生能源消纳问题的有效手段之一。盐穴作为压缩空气储气库具有独特的技术和经济优势。研究压缩空气盐穴储气库的热力特性,对于压缩空气储能系统的设计和运行都具有重要的指导意义。本文对盐穴... 详细信息

压缩空气储能是解决风电、光伏等波动性可再生能源消纳问题的有效手段之一。盐穴作为压缩空气储气库具有独特的技术和经济优势。研究压缩空气盐穴储气库的热力特性,对于压缩空气储能系统的设计和运行都具有重要的指导意义。本文对盐穴储气库的压缩空气注采全过程开展了数值模拟和热力特性分析。分析结果表明:由于盐穴储气库内的空气和该储气库壁面上的盐岩层存在对流换热,因此充、放气过程中盐穴储气库内平均温度的变化程度均小于绝热模型,充气过程中,盐穴储气库内空气的平均温升为6.1℃,放气过程中,盐穴储气库内空气的平均温降为7.2℃;充、放气过程中,盐穴储气库壁面上盐岩层内热影响区的深度为2.5 m,这不会对盐穴储气库的安全运行产生不良影响。

关键词：压缩空气储能盐穴储气库数值模拟热力分析