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Research on self-healing restoration strategy of urban power grid based on multi-agent technology

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Research on self-healing restoration strategy of urban power...

2011 International Conference on Advanced Power System automation and Protection(APAP 2011)

作者： WANG XiaoJing, CHEN XinYing, HU HeXuan, YU Kun, LI ZhenKun College of Energy & Electrical Engineering, Hohai university, Nanjing, 210098, china

Rapid restoration after fault of urban power grid is important. In this paper a self-healing restoration strategy integrated multiple objectives is researched. N+1 restoration architecture based on multi-agent technology is built to implement the self-healing restoration strategy. N substation agents are in charge of restoration task inside substations, and a network agent is responsible for the corporation of tie lines between substations. Optimized objectives of restoration are divided into several levels using delaminating sequence method. Optimized load shedding strategy when restoration strategy is not satisfying constraint conditions is also established. Transformer fault and line fault are simulated respectively. The results confirm the validity of the proposed restoration strategy.

关键词： urban power grid self-healing control power supply restoration multi-agent technology delaminating se- quence method

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水下散射信道信号到达角度分布研究

中国激光 2018年第3期45卷 265-272页

作者：刘涛张洪明宋健清华信息科学与技术国家实验室清华大学电子工程系北京100084 深圳市数字电视系统重点实验室(广东省数字电视系统重点实验室) 深圳清华大学研究院广东深圳518057

基于多次散射模型,设计了基于蒙特卡罗仿真模型的LED传输系统,研究了不同水体环境下接收信号到达角度和接收机视场角对接收信号功率和接收信噪比的影响。在纯水和纯净大洋水环境下,接收信号功率集中分布在0°~3.,较小的接收机视场角(1... 详细信息

基于多次散射模型,设计了基于蒙特卡罗仿真模型的LED传输系统,研究了不同水体环境下接收信号到达角度和接收机视场角对接收信号功率和接收信噪比的影响。在纯水和纯净大洋水环境下,接收信号功率集中分布在0°~3.,较小的接收机视场角(1°)可以获得最大信噪比。在港口水和沿海水环境下,信号功率的分布显著扩展,特别是港口水环境下扩展到0°~90°。在沿海水环境下,当接收机视场角为8°,可以获得最大信噪比;在港口水环境下,接收视场角增大到3.°,可以获得最大信噪比。

关键词：光通信水下散射信道蒙特卡罗仿真到达角度视场角

A Reliable Routing Protocol based on Deterministic Schedule for Wireless Industrial Networks

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A Reliable Routing Protocol based on Deterministic Schedule ...

2010 3.d IEEE International Conference on Computer science and information {3.—ICCSIT 2010

作者： Heng Wang Genchang Ge Jingming Chen Ping Wang Key Laboratory of Network control & Intelligent Instrument Chongqing university of Posts and Telecommunications Chongqing 400065 china

In order to meet the demands of reliability and time- determination in wireless industrial network,and considering the features of limited resources in Low-Rate WPAN（Wireless Personal Area Network）,we present a reliable routing protocol for WIA-PA （Wireless Networks for Industrial automation- Process automation） wireless industrial networks in this *** first develop an improved routing mechanism with feedback and *** a deterministic routing algorithm for both cluster and mesh networks is proposed based on *** algorithm supports deterministic schedule,redundancy,and VCR （Virtual Communication Relationship） for *** experiment results show that the proposed routing protocol has the advantages of energy-saving,determination,high reliability and low *** protocol is efficient and easy to implement in the practical wireless industrial networks.

关键词： routing protocol WIA-PA deterministic schedule wireless industrial network

Wide-Area Backup Protection System based on Fuzzy-Fusion

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Wide-Area Backup Protection System based on Fuzzy-Fusion

2011 International Conference on Advanced Power System automation and Protection(APAP 2011)

作者： TIAN Cong-cong WEN Ming-hao LIU Hang State Key Laboratory of Advanced Electromagnetic Engineering and technology Electric Power Security and High Efficiency Laboratory Wuhan 43.074 Hubei Province china

A wide-area backup protection system based on distributed communication and centralized decision-making is proposed, the system determines its communication range and fault location algorithm according to the information of distance protection within the substation, a fuzzy-fusion method is proposed based on the information within the communication range, and then using the result of the fuzzy decision-making to realize fault judgment. Simulation test based on IEEE 5-bus system demonstrates that the method is effective.

关键词： distributed communication centralized decision-making fuzzy-fusion decision making fuzzy-reasoning

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天地一体化网络新型路由协议一致性测试研究

中国电子科学研究院学报 2018年第1期13卷 72-80页

作者：王庆王之梁姚姜源施新刚尹霞王鹏陈健军戴庆龙牟超清华大学计算机科学与技术系北京100084 清华大学网络科学与网络空间研究院北京100084 清华信息科学与技术国家实验室(筹) 北京100084 海南大学信息科学技术学院海口570228 中国电子科学研究院北京100041

天地一体化网络是未来网络发展的一个重要方向,与传统网络相比,天地一体化网络具有拓扑动态变化、节点计算能力受限等特点,难以直接应用传统的路由协议。这种情况下,出现了面向天地一体化网络的OSPF+、BGP+等新型路由协议。针对新型路... 详细信息

天地一体化网络是未来网络发展的一个重要方向,与传统网络相比,天地一体化网络具有拓扑动态变化、节点计算能力受限等特点,难以直接应用传统的路由协议。这种情况下,出现了面向天地一体化网络的OSPF+、BGP+等新型路由协议。针对新型路由协议的特点,采用形式化测试描述语言TTCN-3.计开发了适用于OSPF+、BGP+协议的一致性测试集。基于通用协议集成测试系统PITSv3.使用该测试集对新型路由协议进行了一致性测试,测试结果表明,该测试集能有效发现天地一体化网络新型路由协议实现与其设计规范的不一致,为新型路由协议的开发优化提供有力的帮助。

关键词：天地一体化网络路由协议一致性测试 OSPF+ BGP+

一种基于快速正交搜索的WLAN室内定位方法

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信息工程大学学报 2018年第1期19卷 10-14页

作者：李劲松李兴光李云洲季新生国家数字程控交换系统研究中心河南郑州450002 清华大学无线与移动通信中心北京100084

针对信道状态信息数据量大、时变性强的问题,提出一种基于快速正交搜索算法的改进WLAN室内定位方法。定位系统利用无线网卡采集各天线和子载波信道状态信息,通过预处理和快速正交搜索算法进行特征提取和权值计算,结合不同特征权重进行... 详细信息

针对信道状态信息数据量大、时变性强的问题,提出一种基于快速正交搜索算法的改进WLAN室内定位方法。定位系统利用无线网卡采集各天线和子载波信道状态信息,通过预处理和快速正交搜索算法进行特征提取和权值计算,结合不同特征权重进行概率模型估计,实现定位。实验结果表明,该设计方法在定位精度、运算速度和复杂度上优于传统的定位方式,定位性能良好。

关键词：信道状态信息 WLAN定位系统快速正交搜索算法 kNN分类

BCC_AGCM大气环流模式异构众核加速技术

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气象科技 2018年第2期46卷 245-249,417页

作者：肖洒魏敏国家气象信息中心北京100081 清华大学地球系统科学系北京100084

针对未来高性能计算在CPU混合架构上的发展趋势,本文对大气环流模式BCC_AGCM中的部分核心段在混合架构的神威·太湖之光高性能计算机系统上进行众核加速分析与优化。文中以核心段quad为例,通过对代码内容结构重写和使用OpenACC语言对程... 详细信息

针对未来高性能计算在CPU混合架构上的发展趋势,本文对大气环流模式BCC_AGCM中的部分核心段在混合架构的神威·太湖之光高性能计算机系统上进行众核加速分析与优化。文中以核心段quad为例,通过对代码内容结构重写和使用OpenACC语言对程序进行运行指示的方式,将该核心段成功移植加速并通过了结果正确性验证。结果表明,使用OpenACC语言能够以对源代码的较小改动来获得一定的加速比,在异构环境中源代码优化加速提升的效果取决于程序结构、循环并行颗粒度以及地址连续性。

关键词：混合架构神威·太湖之光 BCC_AGCM OpenACC

Design and implementation of relay protection fault information intelligent analysis system in Smart Grid

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Design and implementation of relay protection fault informat...

2011 International Conference on Advanced Power System automation and Protection(APAP 2011)

作者： CAI XiaoLing 1 ZHANG JiFen 1 LIN ChuanWei 1 HUANG WeiPing 1 WANG LiWei 1 1 Fujian Electric Power Survey & Design Institute Fuzhou 3.0003.china

This paper introduces the design and implementation of relay protection fault information intelligent analysis system in Fujian Smart Grid. The system integrated in the smart grid dispatching technology support system as a senior application module seamlessly. It can share information with the SCADA system, and make the unified model of primary equipment and secondary equipment. Through the accurate identification of switch on-off information, SOE information, relay protection action information, relay protection decentralized record ,fault recorder file, PMU dynamic measurement data, the fault recording file of PMU, the system can provide a detailed comprehensive analysis of the actual trip accident, including much helpful information, such as fault equipment, fault type, fault phase, and so forth. At the same time, the system can provide intelligent decision support for the dispatcher to shorten the processing time of the accident.

关键词： relay protection fault information system intelligent analysis system