检索结果-内蒙古大学图书馆

Design and implementation of substation communication software for IED

Dianli Xitong Baohu yu Kongzhi/power system Protection and control 2011年第24期39卷 132-137页

作者： Hu, Feng-Kai Huang, Qi Jing, Shi Li, Jing The Power System Wide-area Measurement and Control Key Laboratory of Sichuan Province University of Electronic Science and Technology of China Chengdu 611731 China

With the development of smart grid, Intelligent Electronic Device (IED) will be increasingly used in substation protection, control and measurement. A kind of substation communication software for variety of IEDs is designed and implemented. This paper focuses on the overall flow of the system, function library, multithreading architecture, and the design of database. This software utilizes the Modbus TCP/IP which is an openly published, efficient, and widely used communication protocol in the industrial automation field. In order to make the system have a strong scalability, this paper also describes the implementation guide of Modbus based on IPv6. Finally, the performance of the library and the real time capability of the overall system are tested respectively, indicating that this software meets the requirements of being efficient and stable, reliable in the communication of substation.

关键词： Software testing

来源：评论

学校读者我要写书评

暂无评论

Performance Testing on GOOSE and MSV Transmission in One Network

引用

Energy Procedia 2011年 12卷 185-191页

作者： Jing Li Qi Huang Feng-kai Hu Shi Jing Sichuan Provincial Key Lab of Power System Wide-area Measurement and Control University of Electronic Science and Technology of China (UESTC) Chengdu Sichuan China

lEC 61850 “Communication networks and systems in substation” is not only the most advanced and universal standard for communication but also a comprehensive system oriented standard for substation automation system (SAS). This paper proposes a transmission solution for communication scheme which combines Multicast Sampled Value (MSV) and Generic Object Oriented Substation Event (GOOSE) information in one network (Transmit MSV and GOOSE simultaneously with a network transmission line). MSV and GOOSE are described detail in the next context, and then the traffic flow and the delay of the two messages are estimated respectively. In this article, transmission performance tests based on the architecture of a single network are designed and implemented. The single event and multi-event tests show that the latency of the packets is quite small and the real-time performance satisfies the requirement of the intelligent substation.

关键词： IEC 61850 MSV GOOSE SAS Transmission performance

来源：评论

学校读者我要写书评

暂无评论

Smart Grid Facing the New Challenge: The Management of Electric Vehicle Charging Loads

引用

Energy Procedia 2011年 12卷 98-103页

作者： Changhua Zhang Qi Huang Jiashen Tian Lei Chen Yongxing Cao Ran Zhang Sichuan Provincial Key Lab of Power System Wide-area Measurement and Control University of Electronic Science and Technology of China. Chengdu China Sichuan Electric Power Test & Research Institute Chengdu China

Because of the energy shortage, air pollution and greenhouse gas over mission, the plug-in electric vehicles can be looked as the alternative of the current fossil fuels vehicles. But PHEVs charging brings out the serious problem to the power systems security operation. Smart grid, with its flexible operation ways, is likely to solve this problem. This paper discusses the relationship between the smart grid and the PHEVs charging load. Then introduce the PHEVs influence on the power system based its different operation model. The third part presents the coordinated charging schedule model and in the last part, some core technologies to construct the communication net are also discussed.

关键词： Charging loads plug-in hybrid electric vehicles (PHEV) smart grid zigbee

来源：评论

学校读者我要写书评

暂无评论

Fault detection and isolation based on optimal fault-tolerant observers for linear system

Fault detection and isolation based on optimal fault-toleran...

引用

International Conference on Electrical and control Engineering, ICECE 2010

作者： Yi, Jianbo Huang, Qi Sichuan Provincial Key Laboratory of Power System Wide-Area Measurement and Control Department of Automation University of Electronic Science and Technology of China UESTC Chengdu Sichuan Province 611731 China

ISBN: (纸本)9780769540313

The problem of diagnosing the actuator faults and sensor faults of linear system with the methods of fault detection and isolation (FDI) technology and optimal fault-tolerant observers is addressed. The measurable outputs used to reconstruct states for the system carry the fault information, which may affect the performance of the system state estimation. In this paper, by comparing the measurable outputs, reliable outputs without fault is selected as the input of the reconstructed system. Then reduced order optimal fault-tolerant observers are used to track the system states. Based on the FDI technology, residual observers are designed to achieve the fault detection for the linear system. Case studies demonstrate the effectiveness of FDI technology and optimal fault-tolerant observers method used in fault detection and isolation. © 2010 IEEE.

关键词： Linear systems

来源：评论

学校读者我要写书评

暂无评论

New type of fiber optic sensor network for smart grid interface of transmission system

New type of fiber optic sensor network for smart grid interf...

引用

作者： Huang, Qi Zhang, Changhua Liu, Qunying Ning, Yan Cao, Yongxing Chengdu Sichuan 610054 China Sichuan Provincial Key Lab. of Power System Wide-area Measurement and Control Sichuan Electric Power Test and Research Institute No. 23 Qinghua Rd. Chengdu 610072 Sichuan China

ISBN: (纸本)9781424483570

Smart Grid is aimed to incorporate monitoring, analysis, control and communication capabilities to improve reliability and energy efficiency. However, currently there is no enough sensor to provide information interface for the implementation of smart grid. Therefore, new types of sensors should be deployed to assist the implementation of smart grid. This paper proposes a novel scheme, in which new type of fiber optic sensors (as compared with traditional Farady effect based fiber optic sensor used in power system instrumentation) are used to provide multiple types of information for smart grid. The new Fiber Gragg Gratting (FBG) is advantageous in that it can collect variant types of information and can form a sensor network. A transmission line monitoring system with distributed fiber optic senor setwork is designed, and the procedures to evaluate the status of the overhead transmission line (such as sag, vibration, and galloping) are proposed. A testing setup is built at laboratory, and it is shown that the FBG sensor is capable of obtaining the comprehensive information for evaluating the status of the overhead transmission line. ©2010 IEEE.

关键词： Smart power grids

来源：评论

学校读者我要写书评

暂无评论

New type of fiber optic sensor network for smart grid interface of transmission system

New type of fiber optic sensor network for smart grid interf...

引用

IEEE General Meeting power& Energy Society

作者： Qi Huang Changhua Zhang Qunying Liu Yan Ning Yongxing Cao Sichuan Provincial Key Lab of Power System Wide-area Measurement and Control University of Electronic Science and Technology Chengdu Sichuan China Sichuan Provincial Key Lab of Power System Wide-area Measurement and Control SICHUAN Electric Power Test and Research Institute Chengdu Sichuan China

Smart Grid is aimed to incorporate monitoring, analysis, control and communication capabilities to improve reliability and energy efficiency. However, currently there is no enough sensor to provide information interface for the implementation of smart grid. Therefore, new types of sensors should be deployed to assist the implementation of smart grid. This paper proposes a novel scheme, in which new type of fiber optic sensors (as compared with traditional Farady effect based fiber optic sensor used in power system instrumentation) are used to provide multiple types of information for smart grid. The new Fiber Bragg Gratting (FBG) is advantageous in that it can collect variant types of information and can form a sensor network. A transmission line monitoring system with distributed fiber optic senor network is designed, and the procedures to evaluate the status of the overhead transmission line (such as sag, vibration, and galloping) are proposed. A testing setup is built at laboratory, and it is shown that the FBG sensor is capable of obtaining the comprehensive information for evaluating the status of the overhead transmission line.

关键词： power transmission lines Optical fiber sensors Transmission line measurements Optical fibers Fiber gratings Temperature measurement

来源：评论

学校读者我要写书评

暂无评论

Fault Detection and Isolation Based on Optimal Fault-Tolerant Observers for Linear system

Fault Detection and Isolation Based on Optimal Fault-Toleran...

引用

International Conference on Electrical and control Engineering (ICECE)

作者： Jianbo Yi Qi Huang Sichuan Provincial Key Laboratory of Power System Wide-Area Measurement and Control Department of automation University of Electronic Science and Technology Chengdu Sichuan China

关键词： Observers Fault tolerance Fault tolerant systems Actuators Fault detection Linear systems Mathematical model

来源：评论

学校读者我要写书评

暂无评论

A new assessment method to voltage vulnerability within the static energy frame

A new assessment method to voltage vulnerability within the ...

引用

IEEE General Meeting power& Energy Society

作者： Qunying Liu Qifang Liu Qi Huang Sichuan Provincial Key Lab of Power System Wide-area Measurement and Control UESTC Chengdu China GUODIAN Sichuan Ashine Power Company Limited Chengdu China

ISBN: (纸本)9781424465491

Voltage vulnerability has been important in power system security research. Considering the characteristic that the voltage are mainly influenced by the reactive power, the potential energy margin which can embody the impacts from the reactive load, the reactive output of generator, the reactive compensation, and so on, was proposed as the benchmark, and then, the degree index and the trend index of voltage vulnerability were derived, the impacts of grid topology and the reactive power inject ingredients on the voltage vulnerability were discussed. On this base, the assessment index of branch vulnerability was proposed to compute the distance of the current value of branch transmission to the initial value and ascertain the vulnerable area. In IEEE-30bus system, the feasibility and exactness of this method are identified by the simulation.

关键词： Indexes Reactive power Potential energy Equations Generators Mathematical model Production

来源：评论

学校读者我要写书评

暂无评论

Development of a tool for the analysis of power system higher order oscillation

Development of a tool for the analysis of power system highe...

引用

IEEE General Meeting power& Energy Society

作者： Zhouqiang Wang Qi Huang Changhua Zhang Sichuan Provincial Key Laboratory of Power System Wide-area Measurement and Control University of Electronic Science and Technology Chengdu Sichuan China

The analysis of higher order modal interaction attracts much attention from scholars all over the world. The normal form theory and the modal series method offer new ideas for solving these problems. However, literature review and simulation show that modal analysis for a certain case with these approaches may obtain different results. In this paper, the currently available methods are integrated into a tool PSMAT (power system modal analysis tool), so that one can compare the results with different approaches, and then select the most appropriate method for his analysis purpose. The developed tool has all the functionalities in modal analysis as well as the quantitative indices. The design of the tool is described and case studies are presented. The results obtained with this tool are discussed. It is verified that this tool is effective, in both modal analysis and comparison of the approaches.

关键词： power system analysis computing Modal analysis power system modeling power system simulation power system stability power system interconnection Taylor series Signal analysis Performance analysis Equations

来源：评论

学校读者我要写书评

暂无评论

Design of an adaptive on-load de-icing scheme for overhead power transmission line

Design of an adaptive on-load de-icing scheme for overhead p...

引用

IEEE General Meeting power& Energy Society

作者： Qi Huang Yong Chen Changhua Zhang Sichuan Provincial Key Laboratory of Power System Wide-area Measurement and Control University of Electronic Science and Technology Chengdu Sichuan China

This paper reports part of the results in the project to develop an on-load de-icing system. In the system, a high frequency high voltage excitation with adjustable frequency, is used to de-ice the ice covered on long power transmission line. The system is highly efficient in de-icing due to the joint heating effect brought by transmission line loss and dielectric loss. The mathematical model of the system is developed. And on the basis of analysis and numerical simulation results, an adaptive scheme is designed. In the system, networked sensors are deployed to monitor the ice condition on transmission line, and on-line regulate the frequency of the high-voltage excitation according to the monitored ice information, to ensure that there is no severe ice-covering spot on long transmission line.

关键词： power transmission lines Frequency Ice Dielectric losses Propagation losses Condition monitoring Voltage Heating Mathematical model Numerical simulation

来源：评论

学校读者我要写书评

暂无评论

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

请选择保存的检索档案：

请选择收藏分类：

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

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

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：