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The Optimization Study about Fault Self-Healing Restoration of Power Distribution Network Based on Multi-Agent Technology 被引量:3
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作者 Fuquan Huang Zijun Liu +2 位作者 Tinghuang Wang Haitai Zhang Tony Yip 《Computers, Materials & Continua》 SCIE EI 2020年第10期865-878,共14页
In order to quickly and accurately locate the fault location of the distribution network and increase the stability of the distribution network,a fault recovery method based on multi-objective optimization algorithm i... In order to quickly and accurately locate the fault location of the distribution network and increase the stability of the distribution network,a fault recovery method based on multi-objective optimization algorithm is proposed.The optimization of the power distribution network fault system based on multiagent technology realizes fast recovery of multi-objective fault,solve the problem of network learning and parameter adjustment in the later stage of particle swarm optimization algorithm falling into the local extreme value dilemma,and realize the multi-dimensional nonlinear optimization of the main grid and the auxiliary grid.The system proposed in this study takes power distribution network as the goal,applies fuzzy probability algorithm,simplifies the calculation process,avoids local extreme value,and finally realizes the energy balance between each power grid.Simulation results show that the Multi-Agent Technology enjoys priority in restoring important load,shortening the recovery time of power grid balance,and reducing the overall line loss rate of power grid.Therefore,the power grid fault self-healing system can improve the safety and stability of the important power grid,and reduce the economic loss rate of the whole power grid. 展开更多
关键词 Multi agent TECHNOLOGY power distribution network fault self-healing
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Distribution System Reliability Analysis for Smart Grid Applications 被引量:1
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作者 Tawfiq M. Aljohani Mohammed J. Beshir 《Smart Grid and Renewable Energy》 2017年第7期240-251,共12页
Reliability of power systems is a key aspect in modern power system planning, design, and operation. The ascendance of the smart grid concept has provided high hopes of developing an intelligent network that is capabl... Reliability of power systems is a key aspect in modern power system planning, design, and operation. The ascendance of the smart grid concept has provided high hopes of developing an intelligent network that is capable of being a self-healing grid, offering the ability to overcome the interruption problems that face the utility and cost it tens of millions in repair and loss. In this work, we will examine the effect of the smart grid applications in improving the reliability of the power distribution networks. The test system used in this paper is the IEEE 34 node test feeder, released in 2003 by the Distribution System Analysis Subcommittee of the IEEE Power Engineering Society. The objective is to analyze the feeder for the optimal placement of the automatic switching devices and quantify their proper installation based on the performance of the distribution system. The measures will be the changes in the reliability system indices including SAIDI, SAIFI, and EUE. In addition, the goal is to design and simulate the effect of the installation of the Distributed Generators (DGs) on the utility’s distribution system and measure the potential improvement of its reliability. 展开更多
关键词 POWER SYSTEM RELIABILITY Smart Grid APPLICATIONS distribution SYSTEM RELIABILITY Automatic Reclosers distributed Generation self-healing POWER Grids
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Decentralized Bilateral Risk-based Self-healing Strategy for Power Distribution Network with Potentials from Central Energy Stations 被引量:1
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作者 Chaoxian Lv Rui Liang Yuanyuan Chai 《Journal of Modern Power Systems and Clean Energy》 SCIE EI CSCD 2023年第1期179-190,共12页
Owing to potential regulation capacities from flexible resources in energy coupling,storage,and consumption links,central energy stations(CESs)can provide additional support to power distribution network(PDN)in case o... Owing to potential regulation capacities from flexible resources in energy coupling,storage,and consumption links,central energy stations(CESs)can provide additional support to power distribution network(PDN)in case of power disruption.However,existing research has not explicitly revealed the emergency response of PDN with leveraging multiple CESs.This paper proposes a decentralized self-healing strategy of PDN to minimize the entire load loss,in which multi-area CESs’potentials including thermal storage and building thermal inertia,as well as the flexible topology of PDN,are reasonably exploited for service recovery.For sake of privacy preservation,the co-optimization of PDN and CESs is realized in a decentralized manner using adaptive alternating direction method of multipliers(ADMM).Furtherly,bilateral risk management with conditional value-at-risk(CVaR)for PDN and risk constraints for CESs is integrated to deal with uncertainties from outage duration.Case studies are conducted on a modified IEEE 33-bus PDN with multiple CESs.Numerical results illustrate that the proposed strategy can fully utilize the potentials of multi-area CESs for coordinated load restoration.The effectiveness of the performance and behaviors’adaptation against random risks is also validated. 展开更多
关键词 Power distribution network(PDN) central energy station(CES) bilateral risk management self-healing alternating direction method of multipliers(ADMM)
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Optimal Partitioning of Distribution Networks for Micro-Grid Operation
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作者 Shane J. Kimble Divya T. Vedullapalli Elham B. Makram 《Journal of Power and Energy Engineering》 2017年第9期104-120,共17页
A great concern for the modern distribution grid is how well it can withstand and respond to adverse conditions. One way that utilities are addressing this issue is by adding redundancy to their systems. Likewise, dis... A great concern for the modern distribution grid is how well it can withstand and respond to adverse conditions. One way that utilities are addressing this issue is by adding redundancy to their systems. Likewise, distributed generation (DG) is becoming an increasingly popular asset at the distribution level and the idea of microgrids operating as standalone systems apart from the bulk electric grid is quickly becoming a reality. This allows for greater flexibility as systems can now take on exponentially more configurations than the radial, one-way distribution systems of the past. These added capabilities, however, make the system reconfiguration with a much more complex problem causing utilities to question if they are operating their distribution systems optimally. In addition, tools like Supervisory Control and Data Acquisition (SCADA) and Distribution Automation (DA) allow for systems to be reconfigured faster than humans can make decisions on how to reconfigure them. As a result, this paper seeks to develop an automated partitioning scheme for distribution systems that can respond to varying system conditions while ensuring a variety of operational constraints on the final configuration. It uses linear programming and graph theory. Power flow is calculated externally to the LP and a feedback loop is used to recalculate the solution if a violation is found. Application to test systems shows that it can reconfigure systems containing any number of loops resulting in a radial configuration. It can connect multiple sources to a single microgrid if more capacity is needed to supply the microgrid’s load. 展开更多
关键词 distributed Generation (DG) Supervisory Control and Data Acquisition (SCADA) distribution Automation (DA) Fault Location Isolation and RESTORATION (FLISR) self-healing Network MICRO-GRID Smart Grid
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A Review on Self-healing in Modern Power Distribution Systems
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作者 Seyed Ali Arefifar Md Shahin Alam Abdullah Hamadi 《Journal of Modern Power Systems and Clean Energy》 SCIE EI CSCD 2023年第6期1719-1733,共15页
The ever-increasing dependence on electrical power has posed more challenges to power system engineers to deliver secure, stable, and sustained energy to electricity consumers. Due to the increasing occurrence of shor... The ever-increasing dependence on electrical power has posed more challenges to power system engineers to deliver secure, stable, and sustained energy to electricity consumers. Due to the increasing occurrence of short-and long-term power interruptions in the power system, the need for a systematic approach to mitigate the negative impacts of such events is further manifested. Self-healing and its control strategies are generally accepted as a solution for this concern. Due to the importance of self-healing subject in power distribution systems, this paper conducts a comprehensive literature review on self-healing from existing published papers. The concept of self-healing is briefly described, and the published papers in this area are categorized based on key factors such as self-healing optimization goals, available control actions, and solution methods. Some proficient techniques adopted for self-healing improvements are also classified to have a better comparison and selection of methods for new investigators. Moreover, future research directions that need to be explored to improve self-healing operations in modern power distribution systems are investigated and described at the end of this paper. 展开更多
关键词 self-healing distributed generator renewable energy source MICROGRID OPTIMIZATION RECONFIGURATION service restoration automation system
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提高配网自动化自愈成功率的关键措施 被引量:3
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作者 杨鹏 《电气开关》 2023年第1期93-96,共4页
由于传统方法存在控制效果不稳定的问题,导致配网自动化自愈效果不佳,研究提高配网自动化自愈成功率的关键措施。利用最小生成树数学算法,构建配网数字模型;利用简单高效的矩阵算法定位发生故障区间,进而应用并改进智能分布型FA故障自... 由于传统方法存在控制效果不稳定的问题,导致配网自动化自愈效果不佳,研究提高配网自动化自愈成功率的关键措施。利用最小生成树数学算法,构建配网数字模型;利用简单高效的矩阵算法定位发生故障区间,进而应用并改进智能分布型FA故障自愈方式。实验结果:通过对通信模块升级计划和配电设备报警程序的测试,配网自动化自愈成功率提高至84.09%,成功实现了提高配网自动化自愈成功率的目标。 展开更多
关键词 配网自动化 配网自愈 最小生成树算法 智能分布式FA故障自愈方式
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基于实测数据的配网理论网损计算方法 被引量:37
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作者 王刚军 王承民 +1 位作者 李恒 郭志忠 《电网技术》 EI CSCD 北大核心 2002年第12期18-20,共3页
配电网的理论网损计算对配电网的规划和运行具有特别重要的意义。随着配电系统自动化程度的提高,实际网络中装设了大量的监控终端,所采集的数据越来越丰富,给理论网损的计算带来了方便。文中提出了2种计算配电网理论网损的方法,即回路... 配电网的理论网损计算对配电网的规划和运行具有特别重要的意义。随着配电系统自动化程度的提高,实际网络中装设了大量的监控终端,所采集的数据越来越丰富,给理论网损的计算带来了方便。文中提出了2种计算配电网理论网损的方法,即回路电流法和电流电压法。这2种方法不依赖于对网络的拓扑分析和设备参数,充分利用了监控终端的实测数据,是计算配电网理论网损较理想的方法。 展开更多
关键词 实测数据 理论网损 计算方法 配电网 电力系统
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基于CORBA的移动Agent研究及其应用 被引量:16
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作者 王建国 李增智 《计算机科学》 CSCD 北大核心 2000年第10期36-38,共3页
1 引言当前,信息产业技术的发展方向是正从以计算机为中心过渡到以网络为中心,这就需要对整个网络实施有效的管理,而使各个相互“孤立”的计算机系统之问能够进行通信,首先需要解决的问题是异构环境之间的互操作,其次要求能够有效地收... 1 引言当前,信息产业技术的发展方向是正从以计算机为中心过渡到以网络为中心,这就需要对整个网络实施有效的管理,而使各个相互“孤立”的计算机系统之问能够进行通信,首先需要解决的问题是异构环境之间的互操作,其次要求能够有效地收集大量的原始数据。为了解决异构性问题。 展开更多
关键词 移动AGENT CORBA 网络管理 计算机网络
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一个基于广义圆环论的系统管理数字化模型
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作者 李明 《西南师范大学学报(自然科学版)》 CAS CSCD 北大核心 2001年第2期139-141,共3页
从一般系统观点出发 。
关键词 系统管理数字化 广义圆环化 分布式网络考试管理系统 网络数据库 考试信息处理系统
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Review of Service Restoration for Distribution Networks 被引量:8
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作者 Feifan Shen Qiuwei Wu Yusheng Xue 《Journal of Modern Power Systems and Clean Energy》 SCIE EI CSCD 2020年第1期1-14,共14页
With the rapid deployment of the advanced metering infrastructure(AMI)and distribution automation(DA),selfhealing has become a key factor to enhance the resilience of distribution networks.Following a permanent fault ... With the rapid deployment of the advanced metering infrastructure(AMI)and distribution automation(DA),selfhealing has become a key factor to enhance the resilience of distribution networks.Following a permanent fault occurrence,the distribution network operator(DNO)implements the selfhealing scheme to locate and isolate the fault and to restore power supply to out-of-service portions.As an essential component of self-healing,service restoration has attracted considerable attention.This paper mainly reviews the service restoration approaches of distribution networks,which requires communication systems.The service restoration approaches can be classified as centralized,distributed,and hierarchical approaches according to the communication architecture.In these approaches,different techniques are used to obtain service restoration solutions,including heuristic rules,expert systems,metaheuristic algorithms,graph theory,mathematical programming,and multi-agent systems.Moreover,future research areas of service restoration for distribution networks are discussed. 展开更多
关键词 distribution networks FAULT detection FAULT ISOLATION service RESTORATION self-healing SCHEME
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Distribution Management Systems for Smart Grid:Architecture,Work Flows,and Interoperability 被引量:4
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作者 Rabih A.Jabr Izudin Dzafic 《Journal of Modern Power Systems and Clean Energy》 SCIE EI CSCD 2022年第2期300-308,共9页
The smart grid integrates advanced sensors,a two-way communication infrastructure,and high-performance computation-based control.The distribution management systems for smart grid include several functions for manipul... The smart grid integrates advanced sensors,a two-way communication infrastructure,and high-performance computation-based control.The distribution management systems for smart grid include several functions for manipulating legacy voltage control devices and distributed energy resources through closed-loop volt/var control,leading to wide-area regulation of voltages in the presence of fluctuating power.The other primary distribution network analysis application is concerned with automatic fault location and service restoration following fault events,aiming to provide the grid with autonomous intelligence for self-healing.Communication technologies are vital to enable the computing applications of distribution networks,whether they work in centralized or distributed modes.This paper presents the state of the art in distribution management system architectures and modern workflows showing data exchange,practical parallel implementations designed to handle large amounts of data,in addition to communication standards that serve as interoperability enablers.It demystifies the relationship between different functions developed independently by power system researchers and shows their operation as a complete system,thus placing them in a better context for future research and development. 展开更多
关键词 Cyber security data communication power distribution networks self-healing software architecture voltage control.
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网络流理论在配水系统压力优化计算中的应用
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作者 孙旺弟 徐和杰 《镇江船舶学院学报》 1990年第3期1-7,共7页
本文采用网络流理论,研究城市配水系统的优化控制。根据网络流能量最小原理计算管压分布,从而减少了由于管压过高引起的水管裂缝或漏水。本文还介绍了压力、流量的快速算法。
关键词 网络流 最佳控制 配水系统
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银川配电自动化系统构成及功能特点
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作者 刘东 徐文 +3 位作者 任建福 唐增春 高煜 何勇毅 《电力设备》 2000年第2期44-47,共4页
银川配电自动化项目涉及整个老城区的104台户外开关,10座开闭所,14台小区变与台变。整个配网系统的设计采用DF9000分层设置、分级处理的原则。实现全网的配网监控、馈线自动化以及配网管理的功能,大大提高了银川配网自动化的运行水平,... 银川配电自动化项目涉及整个老城区的104台户外开关,10座开闭所,14台小区变与台变。整个配网系统的设计采用DF9000分层设置、分级处理的原则。实现全网的配网监控、馈线自动化以及配网管理的功能,大大提高了银川配网自动化的运行水平,保证了用电可靠性。 展开更多
关键词 配电网 自动化系统 光纤 双环自愈网
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