首页 > 最新文献

2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)最新文献

英文 中文
Analyses and judgment methods of single-phase broken-line fault for loaded distribution line 负载配电线路单相断线故障分析与判断方法
Pub Date : 2016-10-01 DOI: 10.1109/APPEEC.2016.7779551
Qibao Kang, W. Cong, Mengxia Wang, G. Xian, Guoqiang Liu, Zengmin Guo, Ruipeng Yi
The frequency of broken-line fault occurred in distribution network is increasing over the past years. Broken-line fault will create negative sequence and zero sequence voltages, which will seriously affect the normal work of loads. However, distribution network has not equipped with special protection against broken-line fault yet. In this paper, single-phase broken-line fault in distribution network is studied, features of the voltages at both ends of the fault line and the current flowing through the fault line are analyzed by using symmetrical component method combined with phasor diagrams when various single-phase broken-line fault occurs, and it proposes the main criterion and the additional criterions based on the theoretical analyses, as well as a method to judge the section that the broken-line fault located. Finally, simulation analysis is carried out through PSCAD/EMTDC, which ensures the correctness of the theoretical analysis and the protection criterions.
近年来,配电网发生断线故障的频率越来越高。断线故障会产生负序电压和零序电压,严重影响负载的正常工作。然而,配电网还没有配备对断线故障的特殊保护。本文以配电网单相断线故障为研究对象,采用对称分量法结合相量图分析了各种单相断线故障发生时,故障线两端电压和通过故障线的电流的特征,并在理论分析的基础上提出了断线故障的主判据和附加判据,以及判断断线故障所在路段的方法。最后通过PSCAD/EMTDC进行仿真分析,保证了理论分析和保护判据的正确性。
{"title":"Analyses and judgment methods of single-phase broken-line fault for loaded distribution line","authors":"Qibao Kang, W. Cong, Mengxia Wang, G. Xian, Guoqiang Liu, Zengmin Guo, Ruipeng Yi","doi":"10.1109/APPEEC.2016.7779551","DOIUrl":"https://doi.org/10.1109/APPEEC.2016.7779551","url":null,"abstract":"The frequency of broken-line fault occurred in distribution network is increasing over the past years. Broken-line fault will create negative sequence and zero sequence voltages, which will seriously affect the normal work of loads. However, distribution network has not equipped with special protection against broken-line fault yet. In this paper, single-phase broken-line fault in distribution network is studied, features of the voltages at both ends of the fault line and the current flowing through the fault line are analyzed by using symmetrical component method combined with phasor diagrams when various single-phase broken-line fault occurs, and it proposes the main criterion and the additional criterions based on the theoretical analyses, as well as a method to judge the section that the broken-line fault located. Finally, simulation analysis is carried out through PSCAD/EMTDC, which ensures the correctness of the theoretical analysis and the protection criterions.","PeriodicalId":117485,"journal":{"name":"2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114219269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Rural electrification using capacitive induced voltage on transmission lines' shield wires 利用输电线路屏蔽线上的电容感应电压实现农村电气化
Pub Date : 2016-10-01 DOI: 10.1109/APPEEC.2016.7779476
Joan Sebastian Chaves Huertas, M. Tavares
This paper proposes an innovative solution to electrification of micro loads in the surroundings of high voltage transmission lines routes. Rural electrification of these loads is not trivial due to technical and economical aspects. These loads can be supplied by using the energy loss that is confined near to isolated shielding wires. The alternative consists of isolating a section of a shielding wire and needs a resonant reactor for voltage regulation. The main characteristics of the proposed system are presented, together with steady state results obtained with PSCAD and ATP programs.
本文提出了一种解决高压输电线路周边微负荷电气化的创新方案。由于技术和经济方面的原因,这些负载的农村电气化不是微不足道的。这些负载可以通过限制在隔离屏蔽线附近的能量损失来提供。替代方案包括隔离一段屏蔽线,并需要一个谐振电抗器来调节电压。介绍了该系统的主要特性,并给出了用PSCAD和ATP程序得到的稳态结果。
{"title":"Rural electrification using capacitive induced voltage on transmission lines' shield wires","authors":"Joan Sebastian Chaves Huertas, M. Tavares","doi":"10.1109/APPEEC.2016.7779476","DOIUrl":"https://doi.org/10.1109/APPEEC.2016.7779476","url":null,"abstract":"This paper proposes an innovative solution to electrification of micro loads in the surroundings of high voltage transmission lines routes. Rural electrification of these loads is not trivial due to technical and economical aspects. These loads can be supplied by using the energy loss that is confined near to isolated shielding wires. The alternative consists of isolating a section of a shielding wire and needs a resonant reactor for voltage regulation. The main characteristics of the proposed system are presented, together with steady state results obtained with PSCAD and ATP programs.","PeriodicalId":117485,"journal":{"name":"2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114857171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Transmission network including VSC-HVDC expansion planning based on genetic algorithm with shift operation 输电网包括基于遗传算法的带移位操作的vdc - hvdc扩容规划
Pub Date : 2016-10-01 DOI: 10.1109/APPEEC.2016.7779628
Zece Zhang, Jiankang Liang, Xiuli Wang, Rong Ye, Zhangsui Lin
An important purpose of building VSC-HVDC is to eliminate the overload and optimize the power flow in electric power network. From the points of the transmission network, a VSC-HVDC in electric power network influences the two end nodes' injection power of DC transmission line virtually and the injection power will further influence the distribution of branch power. The elimination of overload in electric power network that caused by VSC-HVDC has been considered when making transmission network expansion planning. A fast optimization model for power of transmission network including VSC-HVDC is built to minimize the network power loss. A new genetic operation called shift operation which will change the order of chromosome's local coding is added to the algorithm to keep the diversity of population. Garver-6 system is taken as an example to verify the correctness of the fast optimization model and prove that the genetic algorithm with shift operation can avoid local convergence more effectively. The genetic algorithm with shift operation is a beneficial attempt to improve the global convergence of genetic algorithm. The fast optimization model for power of transmission network including VSC-HVDC is proved to be practical.
建立直流直流输电系统的一个重要目的是消除电网过载,优化电网潮流。从输电网络的角度来看,电网中vdc对直流输电线路两端节点的注入功率产生无创性的影响,注入功率将进一步影响支路功率的分布。在制定输电网扩建规划时,要考虑到如何消除直流-高压直流对电网造成的过载。建立了包括直流输电在内的输电网功率快速优化模型,使电网损耗最小。该算法增加了一种新的遗传操作——移位操作,通过改变染色体局部编码的顺序来保持种群的多样性。以Garver-6系统为例,验证了快速优化模型的正确性,并证明了带移位操作的遗传算法能更有效地避免局部收敛。带移位运算的遗传算法是改进遗传算法全局收敛性的有益尝试。验证了包括直流输电在内的输电网功率快速优化模型的实用性。
{"title":"Transmission network including VSC-HVDC expansion planning based on genetic algorithm with shift operation","authors":"Zece Zhang, Jiankang Liang, Xiuli Wang, Rong Ye, Zhangsui Lin","doi":"10.1109/APPEEC.2016.7779628","DOIUrl":"https://doi.org/10.1109/APPEEC.2016.7779628","url":null,"abstract":"An important purpose of building VSC-HVDC is to eliminate the overload and optimize the power flow in electric power network. From the points of the transmission network, a VSC-HVDC in electric power network influences the two end nodes' injection power of DC transmission line virtually and the injection power will further influence the distribution of branch power. The elimination of overload in electric power network that caused by VSC-HVDC has been considered when making transmission network expansion planning. A fast optimization model for power of transmission network including VSC-HVDC is built to minimize the network power loss. A new genetic operation called shift operation which will change the order of chromosome's local coding is added to the algorithm to keep the diversity of population. Garver-6 system is taken as an example to verify the correctness of the fast optimization model and prove that the genetic algorithm with shift operation can avoid local convergence more effectively. The genetic algorithm with shift operation is a beneficial attempt to improve the global convergence of genetic algorithm. The fast optimization model for power of transmission network including VSC-HVDC is proved to be practical.","PeriodicalId":117485,"journal":{"name":"2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"293 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116873492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
A new protection scheme based on distributed decision in smart distribution grid 基于分布式决策的智能配电网保护新方案
Pub Date : 2016-10-01 DOI: 10.1109/APPEEC.2016.7779508
Xin Huang, Qing Chen, Xinyue Si, J. Si
With the development of smart distribution network, the distribution system is introduced with a large number of distributed generations (DGs). It becomes an active network that both the load and fault currents flow two-way, which leads to serious impacts on the protection's selectivity and sensitivity. In this paper, by analyzing current characteristics of a typical distribution network with DGs, a new distributed decision protection method which combines traditional over-current scheme and distributed wide-area protection is proposed. In this method, each line needs to install a smart terminal unit (STU) which obtains local data of current amplitude and direction in real time and processes them into logical values used to realize a specified logical operation. According to local and adjacent STU's calculation results, STUs can judge the fault area without synchronous sampling and isolate the fault by controlling the local protective devices accurately and quickly.
随着智能配电网的发展,配电系统引入了大量分布式代(dg)。负载电流和故障电流双向流动成为一个有源网络,严重影响了保护的选择性和灵敏度。本文通过分析典型配电网络的电流特性,提出了一种将传统过流方案与分布式广域保护相结合的分布式决策保护方法。在这种方法中,每条线路需要安装一个智能终端单元(smart terminal unit, STU),实时获取本地的电流幅度和方向数据,并将其处理成逻辑值,用于实现指定的逻辑操作。根据本地和相邻STU的计算结果,无需同步采样即可判断出故障区域,通过控制本地保护装置准确、快速地隔离故障。
{"title":"A new protection scheme based on distributed decision in smart distribution grid","authors":"Xin Huang, Qing Chen, Xinyue Si, J. Si","doi":"10.1109/APPEEC.2016.7779508","DOIUrl":"https://doi.org/10.1109/APPEEC.2016.7779508","url":null,"abstract":"With the development of smart distribution network, the distribution system is introduced with a large number of distributed generations (DGs). It becomes an active network that both the load and fault currents flow two-way, which leads to serious impacts on the protection's selectivity and sensitivity. In this paper, by analyzing current characteristics of a typical distribution network with DGs, a new distributed decision protection method which combines traditional over-current scheme and distributed wide-area protection is proposed. In this method, each line needs to install a smart terminal unit (STU) which obtains local data of current amplitude and direction in real time and processes them into logical values used to realize a specified logical operation. According to local and adjacent STU's calculation results, STUs can judge the fault area without synchronous sampling and isolate the fault by controlling the local protective devices accurately and quickly.","PeriodicalId":117485,"journal":{"name":"2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115876215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Substation grounding system optimization with utilizing a novel MATLAB application 利用MATLAB对变电站接地系统进行优化
Pub Date : 2016-10-01 DOI: 10.1109/APPEEC.2016.7779580
Xuan Wu, Qianzhi Zhang, Jiahong He
the aim of this work is to develop an application which has the capability of modeling and optimizing regular shape (rectangular, square or L shape) ground grids under a two-layer soil model. The ground grid optimal design is the focus of this paper by using a 3-step optimization method: 1) using IEEE-80 equations to calculate touch and step potentials, which makes constraints continuous and differentiable for gradient descent methods; 2) using the optimal solutions from step 1 as the initial input into a pattern search algorithm by applying a more accurate but non-differentiable touch and step potential calculation method; 3) performing a perturbation test to determine whether the results from step 2 are globally optimal, otherwise using a genetic algorithm to re-optimize the solution from step 2 until it passes the perturbation test.
本工作的目的是开发一种在两层土壤模型下具有规则形状(矩形、方形或L形)地网建模和优化能力的应用程序。采用3步优化方法对地网进行优化设计:1)利用IEEE-80方程计算触点电位和阶跃电位,使梯度下降法的约束条件连续可微;2)将步骤1的最优解作为模式搜索算法的初始输入,采用更精确但不可微的触摸和阶跃势计算方法;3)执行扰动测试,确定步骤2的结果是否全局最优,否则使用遗传算法重新优化步骤2的解,直到通过扰动测试。
{"title":"Substation grounding system optimization with utilizing a novel MATLAB application","authors":"Xuan Wu, Qianzhi Zhang, Jiahong He","doi":"10.1109/APPEEC.2016.7779580","DOIUrl":"https://doi.org/10.1109/APPEEC.2016.7779580","url":null,"abstract":"the aim of this work is to develop an application which has the capability of modeling and optimizing regular shape (rectangular, square or L shape) ground grids under a two-layer soil model. The ground grid optimal design is the focus of this paper by using a 3-step optimization method: 1) using IEEE-80 equations to calculate touch and step potentials, which makes constraints continuous and differentiable for gradient descent methods; 2) using the optimal solutions from step 1 as the initial input into a pattern search algorithm by applying a more accurate but non-differentiable touch and step potential calculation method; 3) performing a perturbation test to determine whether the results from step 2 are globally optimal, otherwise using a genetic algorithm to re-optimize the solution from step 2 until it passes the perturbation test.","PeriodicalId":117485,"journal":{"name":"2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115258757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparison between back-to-back MMC and M3C as high power AC/AC converters 背靠背式MMC与M3C大功率交流/交流变换器的比较
Pub Date : 2016-10-01 DOI: 10.1109/APPEEC.2016.7779588
Shenquan Liu, Xifan Wang, Biyang Wang, Pengwei Sun, Qian Zhou, Yong Cui
Fractional frequency transmission system (FFTS) is a promising solution to offshore wind power integration. The back-to-back modular multilevel converter (MMC) and modular multilevel matrix converter (M3C) are universally regarded as two promising ac/ac converter candidates of the next generation. This paper performs a detailed comparison between back-to-back MMC and M3C with special emphasis on their total capacitor and semiconductor ratings. The arm current and capacitor ripples are first analyzed, then comparison results of a 220 kV, 500 MW case is given. In terms of peak-current-based and RMS-current-based total semiconductor ratings the M3C is 42.56 % and 22.97 % larger respectively, while its total capacitor rating is merely 33.15% of the back-to-back MMC. The better candidate can be determined according to the quantitative comparison results and the latest prices of semiconductors and capacitors.
分频传输系统(FFTS)是一种很有前途的海上风电集成解决方案。背靠背模块化多电平变换器(MMC)和模块化多电平矩阵变换器(M3C)被普遍认为是下一代交流/交流变换器的两种有前途的候选器件。本文对背靠背MMC和M3C进行了详细的比较,特别强调了它们的总电容和半导体额定值。首先分析了手臂电流和电容纹波,然后给出了220 kV、500 MW的对比结果。在基于峰值电流和基于rms电流的总半导体额定值方面,M3C分别大42.56%和22.97%,而其总电容器额定值仅为背靠背MMC的33.15%。根据定量比较结果和半导体和电容器的最新价格,可以确定较好的候选产品。
{"title":"Comparison between back-to-back MMC and M3C as high power AC/AC converters","authors":"Shenquan Liu, Xifan Wang, Biyang Wang, Pengwei Sun, Qian Zhou, Yong Cui","doi":"10.1109/APPEEC.2016.7779588","DOIUrl":"https://doi.org/10.1109/APPEEC.2016.7779588","url":null,"abstract":"Fractional frequency transmission system (FFTS) is a promising solution to offshore wind power integration. The back-to-back modular multilevel converter (MMC) and modular multilevel matrix converter (M3C) are universally regarded as two promising ac/ac converter candidates of the next generation. This paper performs a detailed comparison between back-to-back MMC and M3C with special emphasis on their total capacitor and semiconductor ratings. The arm current and capacitor ripples are first analyzed, then comparison results of a 220 kV, 500 MW case is given. In terms of peak-current-based and RMS-current-based total semiconductor ratings the M3C is 42.56 % and 22.97 % larger respectively, while its total capacitor rating is merely 33.15% of the back-to-back MMC. The better candidate can be determined according to the quantitative comparison results and the latest prices of semiconductors and capacitors.","PeriodicalId":117485,"journal":{"name":"2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115506761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
The output planning model of the electric vehicle charging stations based on game theory 基于博弈论的电动汽车充电站输出规划模型
Pub Date : 2016-10-01 DOI: 10.1109/APPEEC.2016.7779780
Hongliang Liu, Biao Zhang, Mengying Cui, Peng Xiao, Lijuan Li, Jun Wu
Based on the relationship between traditional gas stations and electric vehicle charging stations in the automotive fuel market, the static Cournot model with profit maximization as the objective function and a dynamic one based on difference method are established to get the Cournot equilibrium of every fuel station. Numerical simulation and sensitivity analysis show feasibility and robustness of the model. All results acquired can be used in the electric vehicle charging stations and the traditional gas stations in the automobile fuel market for output policy guidance.
针对汽车燃油市场中传统加油站与电动汽车充电站之间的关系,建立了以利润最大化为目标函数的静态古诺模型和基于差分法的动态古诺模型,得到了各加油站的古诺均衡。数值仿真和灵敏度分析表明了该模型的可行性和鲁棒性。所得结果可用于电动汽车充电站和传统加油站在汽车燃油市场的产出政策指导。
{"title":"The output planning model of the electric vehicle charging stations based on game theory","authors":"Hongliang Liu, Biao Zhang, Mengying Cui, Peng Xiao, Lijuan Li, Jun Wu","doi":"10.1109/APPEEC.2016.7779780","DOIUrl":"https://doi.org/10.1109/APPEEC.2016.7779780","url":null,"abstract":"Based on the relationship between traditional gas stations and electric vehicle charging stations in the automotive fuel market, the static Cournot model with profit maximization as the objective function and a dynamic one based on difference method are established to get the Cournot equilibrium of every fuel station. Numerical simulation and sensitivity analysis show feasibility and robustness of the model. All results acquired can be used in the electric vehicle charging stations and the traditional gas stations in the automobile fuel market for output policy guidance.","PeriodicalId":117485,"journal":{"name":"2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123674660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Enhancement of real-time operational efficiency by applying dynamic line ratings 通过应用动态线路额定值提高实时操作效率
Pub Date : 2016-10-01 DOI: 10.1109/APPEEC.2016.7779477
K. Cheung, Jun Wu
Facing the challenges posed by the penetration of a new fleet of renewable energy resources which are variable and distributed in nature, transmission organizations and grid operators around the world are in the process of enhancing their dispatch systems with broader capabilities and higher economic efficiency. Traditionally, static line rating (SLR) of a line is conservatively calculated under the “worst-case” operating conditions and are updated infrequently. These conservative assumptions may restrict the line capacity whenever the real weather condition is less stressful. More accurate assessment of transmission flow limits will directly impact the efficiency of system operations. Weather-based real-time dynamic line rating (DLR) is the current limit determined by real-time measurements of weather conditions surrounding the conductor. Increasing thermal line ratings, DLR has the potential to reduce transmission congestion and enhance operational efficiency. This paper applies DLR to the co-optimization problem of real-time energy and reserves using a security constrained economic dispatch (SCED) algorithm. Using real-time DLR, we demonstrate that the real-time SCED is able to dispatch the system more economically, relieve transmission congestion and reserve scarcity, and as a whole improved operational efficiency without compromising system security. Case studies are performed on a large power system of 48,000 transmission lines.
面对可再生能源这种具有可变和分布式特性的新能源的渗透所带来的挑战,世界各地的输电组织和电网运营商都在提高其调度系统的能力和经济效率。传统上,线路的静态额定功率(SLR)是在“最坏”运行条件下保守计算的,并且不经常更新。这些保守的假设可能会限制实际天气条件下的线路容量。更准确地评估输电流量限制将直接影响系统的运行效率。基于天气的实时动态线路额定值(DLR)是由导体周围天气条件的实时测量确定的电流限制。提高热电线路额定值,DLR具有减少传输拥塞和提高运行效率的潜力。本文采用安全约束经济调度算法,将DLR应用于实时能源与储备协同优化问题。利用实时DLR,我们证明了实时SCED能够更经济地调度系统,缓解传输拥塞和储备短缺,并在不影响系统安全性的情况下整体提高运行效率。案例研究是在一个有48,000条输电线路的大型电力系统上进行的。
{"title":"Enhancement of real-time operational efficiency by applying dynamic line ratings","authors":"K. Cheung, Jun Wu","doi":"10.1109/APPEEC.2016.7779477","DOIUrl":"https://doi.org/10.1109/APPEEC.2016.7779477","url":null,"abstract":"Facing the challenges posed by the penetration of a new fleet of renewable energy resources which are variable and distributed in nature, transmission organizations and grid operators around the world are in the process of enhancing their dispatch systems with broader capabilities and higher economic efficiency. Traditionally, static line rating (SLR) of a line is conservatively calculated under the “worst-case” operating conditions and are updated infrequently. These conservative assumptions may restrict the line capacity whenever the real weather condition is less stressful. More accurate assessment of transmission flow limits will directly impact the efficiency of system operations. Weather-based real-time dynamic line rating (DLR) is the current limit determined by real-time measurements of weather conditions surrounding the conductor. Increasing thermal line ratings, DLR has the potential to reduce transmission congestion and enhance operational efficiency. This paper applies DLR to the co-optimization problem of real-time energy and reserves using a security constrained economic dispatch (SCED) algorithm. Using real-time DLR, we demonstrate that the real-time SCED is able to dispatch the system more economically, relieve transmission congestion and reserve scarcity, and as a whole improved operational efficiency without compromising system security. Case studies are performed on a large power system of 48,000 transmission lines.","PeriodicalId":117485,"journal":{"name":"2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121600472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Dependence of over-voltage level of different voltage class surge arrestors on grounding device parameters. Experimental study and simulation 不同电压等级避雷器过电压水平与接地装置参数的关系。实验研究与仿真
Pub Date : 2016-10-01 DOI: 10.1109/APPEEC.2016.7779817
Y. Adamian, S. Krivosheev, N. Korovkin, A. E. Monastyrsky, Y. Bocharov, I. S. Kolodkin, P. I. Kuligin, V. Titkov
It is demonstrated experimentally at surge protecting device connection to grounding system overvoltage limitation level depends on inductive part of the grounding impedance. Experimental study of resistive-inductive equivalent circuit parameters effect has shown presence of high frequency voltage component with characteristic period 1-3 μs. Depending on the grounding inductance the overvoltage limitation level rises up to 20-40%/. It can substantially reduce the protected equipment life time.
实验证明,电涌保护装置与接地系统连接时过电压限制水平取决于接地阻抗的感应部分。电阻-电感等效电路参数效应实验研究表明,存在特征周期为1 ~ 3 μs的高频电压分量。根据接地电感的不同,过电压限制等级最高可达20-40%/。可大大缩短被保护设备的使用寿命。
{"title":"Dependence of over-voltage level of different voltage class surge arrestors on grounding device parameters. Experimental study and simulation","authors":"Y. Adamian, S. Krivosheev, N. Korovkin, A. E. Monastyrsky, Y. Bocharov, I. S. Kolodkin, P. I. Kuligin, V. Titkov","doi":"10.1109/APPEEC.2016.7779817","DOIUrl":"https://doi.org/10.1109/APPEEC.2016.7779817","url":null,"abstract":"It is demonstrated experimentally at surge protecting device connection to grounding system overvoltage limitation level depends on inductive part of the grounding impedance. Experimental study of resistive-inductive equivalent circuit parameters effect has shown presence of high frequency voltage component with characteristic period 1-3 μs. Depending on the grounding inductance the overvoltage limitation level rises up to 20-40%/. It can substantially reduce the protected equipment life time.","PeriodicalId":117485,"journal":{"name":"2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121809490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Study on wind power utilization technology by thermal storage heating in demand-side 需求侧蓄热式风电利用技术研究
Pub Date : 2016-10-01 DOI: 10.1109/APPEEC.2016.7779919
H. Zha, Wenhui Shi, Jixian Qu, Lin Zhu
Wind power utilization technology by thermal storage heating in demand-side had been studied. The basic principle, system structure, direct and transfer supply connection mode, technical benefits, technical and economic evaluation criteria, peak shaving characteristics, and optimal operating model of the thermal storage heating system were investigated. A simple case analysis based on the optimal model of minimizing wind power abandon electricity shows the effectiveness for wind power utilization. Also, some influence factors and problems for the electric heating system application had been put forward.
研究了需求侧蓄热式风力发电利用技术。研究了蓄热供热系统的基本原理、系统结构、直供和转供连接方式、技术效益、技术经济评价标准、调峰特性和优化运行模式。基于风电弃电最小优化模型的简单案例分析表明了风电利用的有效性。并提出了影响电加热系统应用的因素和存在的问题。
{"title":"Study on wind power utilization technology by thermal storage heating in demand-side","authors":"H. Zha, Wenhui Shi, Jixian Qu, Lin Zhu","doi":"10.1109/APPEEC.2016.7779919","DOIUrl":"https://doi.org/10.1109/APPEEC.2016.7779919","url":null,"abstract":"Wind power utilization technology by thermal storage heating in demand-side had been studied. The basic principle, system structure, direct and transfer supply connection mode, technical benefits, technical and economic evaluation criteria, peak shaving characteristics, and optimal operating model of the thermal storage heating system were investigated. A simple case analysis based on the optimal model of minimizing wind power abandon electricity shows the effectiveness for wind power utilization. Also, some influence factors and problems for the electric heating system application had been put forward.","PeriodicalId":117485,"journal":{"name":"2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122650146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
期刊
2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1