检索结果-内蒙古大学图书馆

您好，读者！请登录

内蒙古大学图书馆

首页
概况
党建
资源
服务
科研支持
- 论文收录引用证明
- 科技查新
知识产权
档案馆
帮助

咨询与建议

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

您的常用邮箱：*

您的手机号码：*

问题描述：

当前已输入0个字，您还可以输入200个字

全部搜索
期刊论文
图书
学位论文
标准
纸本馆藏
外文资源发现
数据库导航
超星发现

高级检索

时间限定

出版年份：

文献类型

图书期刊文献学位论文多媒体

馆藏选择

电子馆藏纸本馆藏

核心期刊

全部期刊 SCI 收录期刊 SSCI 收录期刊 EI 收录期刊 CSCD 收录期刊 CSSCI 收录期刊

语言

中文英文

文献类型

期刊文献图书学位论文标准纸本馆藏

帮助

文字说明：

T=题名（书名、题名），A=作者（责任者），K=主题词，P=出版物名称，PU=出版社名称，O=机构（作者单位、学位授予单位、专利申请人），L=中图分类号，C=学科分类号，U=全部字段，Y=年（出版发行年、学位年度、标准发布年）

检索规则说明：

AND代表“并且”；OR代表“或者”；NOT代表“不包含”；(注意必须大写,运算符两边需空一格)

检索范例：

范例一：(K=图书馆学 OR K=情报学) AND A=范并思 AND Y=1982-2016
范例二：P=计算机应用与软件 AND (U=C++ OR U=Basic) NOT K=Visual AND Y=2011-2016

分类表

所选分类

>> <<

限定检索结果

文献类型

534 篇 会议
70 篇 期刊文献
1 册 图书

馆藏范围

605 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

312 篇 工学
- 251 篇 电气工程
- 112 篇 计算机科学与技术...
- 104 篇 电子科学与技术（可...
- 86 篇 软件工程
- 75 篇 动力工程及工程热...
- 74 篇 控制科学与工程
- 22 篇 仪器科学与技术
- 22 篇 网络空间安全
- 21 篇 机械工程
- 19 篇 信息与通信工程
- 17 篇 安全科学与工程
- 11 篇 土木工程
- 10 篇 力学（可授工学、理...
- 10 篇 材料科学与工程（可...
- 8 篇 建筑学
- 7 篇 化学工程与技术
- 4 篇 水利工程
- 3 篇 光学工程
- 3 篇 环境科学与工程（可...
172 篇 理学
- 120 篇 数学
- 70 篇 物理学
- 29 篇 统计学（可授理学、...
- 17 篇 系统科学
- 9 篇 地球物理学
- 4 篇 化学
45 篇 管理学
- 42 篇 管理科学与工程(可...
- 17 篇 工商管理
- 3 篇 图书情报与档案管...
11 篇 经济学
- 11 篇 应用经济学
8 篇 法学
- 8 篇 社会学
2 篇 医学

主题

55 篇 power system dyn...
53 篇 control systems
51 篇 voltage control
50 篇 voltage
44 篇 power system mod...
42 篇 power quality
41 篇 power system pro...
39 篇 power system rel...
35 篇 power generation
35 篇 mathematical mod...
33 篇 power system sta...
32 篇 power systems
31 篇 reactive power
31 篇 power system tra...
29 篇 voltage fluctuat...
28 篇 power system sim...
25 篇 power system har...
24 篇 analytical model...
24 篇 power system sec...
24 篇 circuit faults

机构

80 篇 key laboratory o...
80 篇 key laboratory o...
61 篇 key laboratory o...
46 篇 key laboratory o...
34 篇 ieee
33 篇 key laboratory o...
21 篇 key laboratory o...
19 篇 key laboratory o...
17 篇 key laboratory o...
17 篇 key laboratory o...
11 篇 key laboratory o...
8 篇 north china elec...
7 篇 school of electr...
7 篇 department of el...
6 篇 key laboratory o...
6 篇 department of el...
6 篇 key laboratory o...
6 篇 key laboratory o...
6 篇 department of el...
5 篇 laboratory of po...

作者

71 篇 gengyin li
58 篇 ming zhou
39 篇 chengyong zhao
30 篇 xiangning xiao
30 篇 zhongdong yin
28 篇 li gengyin
24 篇 xiao xiangning
23 篇 zengping wang
22 篇 zhou ming
21 篇 wang zengping
18 篇 tianshu bi
15 篇 ma jin
15 篇 zhao chengyong
14 篇 jianhua zhang
14 篇 jing ma
13 篇 qixun yang
13 篇 chengrong li
13 篇 wei wang
13 篇 ma jing
13 篇 he renmu

语言

538 篇 英文
67 篇 中文

检索条件"机构=Key Laboratory of Power System Protection and Dynamic Monitoring and Control"

共 605 条记录，以下是471-480 订阅

全选清除本页清除全部题录导出标记到"检索档案"

详细简洁

排序：

A control strategy for VSC-HVDC system based on analytic expression

A control strategy for VSC-HVDC system based on analytic exp...

引用

IEEE General Meeting power& Energy Society

作者： Chengyong Zhao Haibo Cui Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control under Ministry of Education North China Electric Power University Baoding Hebei China

In VSC-HVDC transmission system, good control strategy depends on precise mathematic model. However, there is no such direct analytic expression model presented up to now. A control strategy based on analytic expression for VSC-HVDC is presented in this paper, which is connected with active ac power system in both sides, based on the steady model of VSC. The analytic expression about the two controlling variables and the two controlled variables is deduced from VSC power transmission equations according to the basic steady models of the constant dc voltage side and the constant dc current side. A controller is designed, which adopts the main analytic expression model assisted by the closed loop feedback control model. Simulation results testify the feasibility of the control strategy and show that the controller has such advantages as simple structure, quickly responding speed, precise control, etc

关键词： control systems power system modeling Voltage control control system synthesis Mathematics Mathematical model power system analysis computing power system control power systems power transmission

来源：评论

学校读者我要写书评

暂无评论

Modeling of VSC-HVDC and control strategies for supplying both active and passive systems

Modeling of VSC-HVDC and control strategies for supplying bo...

引用

IEEE General Meeting power& Energy Society

作者： Gengyin Li Ming Yin Ming Zhou Chenyong Zhao Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control under Ministry of Education North China Electric Power University Baoding Hebei China

An equivalent continuous-time state-space model for VSC-HVDC in the synchronous dq reference frame has been established in the paper. Based on the model, relevant control strategies have been developed for the cases of supplying active and passive systems. The multi-input multi-output (MIMO) control schemes are emphasized in designing power controller and voltage controller. The scheme features feed forward compensation to decouple the d- and q-axis of the voltage source converter (VSC) model, which ensures the independent control of active and reactive power, DC voltage and reactive power as well. Simulations have been performed on PSCAD/EMTDC, a visual design environment for power system studies. The validity of the mathematic model and the feasibility of the control strategies have been proved by the simulation results

关键词： power system modeling Voltage control Converters power conversion power system simulation Reactive power control PSCAD MIMO Feeds EMTDC

来源：评论

学校读者我要写书评

暂无评论

Sequential Monte Carlo Simulation Based Available Transfer Capability Calculation

Sequential Monte Carlo Simulation Based Available Transfer C...

引用

International Conference on power system Technology (powerCON)

作者： Yajing Gao Ming Zhou Gengyin Li Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control under Ministry of Education North China Electric Power University Baoding Hebei China

Available transmission capability (ATC) is the transfer capability remaining in physical transmission network for further commercial activity above existing transmission commitments. ATC is an important reference for market participators to make decisions, as well as a judgment for system operators to alleviate transmission congestion, and a reference for system planning and expansion. Most of the existing ATC calculation methods are mainly based on deterministic techniques. In practical power systems, there are large amount of uncertainties, and power system is dynamic and time-varying. A novel approach is proposed to analyze relevant features of ATC and calculate ATC based on sequential Monte Carlo simulation and linear programming considering uncertainties and time variation of the system. Through long-time simulation and analysis, the distribution features of ATC can be obtained. The algorithm based on MATLAB 6.5 is developed. IEEE 14-bus test system is used to verify the presented approach.

关键词： power system planning power system simulation power system dynamics power system analysis computing Uncertainty Time varying systems Linear programming Analytical models MATLAB system testing

来源：评论

学校读者我要写书评

暂无评论

Transient plane wave coupling to overhead line above a multi-layer soil lei qi, xiang cui, senior member, ieee, and lin

Transient plane wave coupling to overhead line above a multi...

引用

IEEE International Symposium on Electromagnetic Compatibility (EMC)

作者： Lei Qi Xiang Cui Lin Li Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control under Ministry of Education North China Electric Power University Baoding Hebei China

ISBN: (纸本)142440293X

Considering the displacement current in the multi-layer soil, the formulas of the ground return impedance and the Fresnel reflection coefficients are derived in frequency domain. These expressions are valid for discretional soil conductivities and the whole range of frequencies. For the convenience of transient analysis, the vector fitting method is adopted to expand the time-domain forms of the ground return impedance and the Fresnel reflection coefficients into the sum of finite exponential functions which are easy to be treated. Based on the recursive algorithm for the time-domain convolution, the finite difference time-domain (FDTD) method improved by the authors is used for the transient analysis of the external excited overhead line. Compared with the existing method applicable for homogeneous soil, the proposed method is demonstrated to be correct.

关键词： electromagnetic coupling multi-layer soil multi-conductor transmission lines (MTLs) overhead line Overhead lines Electromagnetic coupling Displacement current FULL-SCALE Transient analysis earth return Fresnel reflection Recursive algorithms

来源：评论

学校读者我要写书评

暂无评论

Research on dynamic characteristics of VSC-HVDC system

Research on dynamic characteristics of VSC-HVDC system

引用

IEEE General Meeting power& Energy Society

作者： Guangkai Li Gengyin Li Haifeng Liang Chengyong Zhao Ming Yin Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control under Ministry of Education North China Electric Power University Baoding Hebei China

VSC-HVDC technology based on voltage source converter (VSC) and isolated gate bipolar transistor is a kind of novel HVDC technology for low power and long distance with flexible control and operation modes. In this paper, the dynamic mathematic model of VSC-HVDC with SPWM control is founded based on analyzing the fundamental principle of VSC-HVDC system. Its switch characteristic and dynamic operation mechanism are analyzed. Simulation results of dynamic operation characteristics for VSC-HVDC system with a rapid power change or a short time fault show that the theoretical analysis is correct. This is a basement to do more dynamic analysis for VSC-HVDC

关键词： Converters power conversion Isolation technology Switches Bipolar transistors HVDC transmission Voltage control Mathematics Mathematical model power system modeling

来源：评论

学校读者我要写书评

暂无评论

Active-reactive power compensation based on SCES in distribution system

Active-reactive power compensation based on SCES in distribu...

引用

International Conference on power system Technology (powerCON)

作者： Rong Lu Jiancheng Zhang Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control under Ministry of Education North China Electric Power University Baoding Hebei China

A Super Capacitor Energy Storage (SCES) system applied to distributed generation system and distribution network is presented. Application studies of the SCES system for active power supply, voltage control and harmonic elimination are described. With inverter control, both active and reactive power pumped into the utility grid can be controlled. The proposed approach combines a dual-loop voltage and current control and a power control which does not require knowledge of the equivalent impedance of the utility grid the SCES unit is connected to. Furthermore, the proposed power control has superiorities as strong P and Q regulation capability, fast enough response, and purely sinusoidal line current. Finally, experiments are performed to verify the proposed theory which shows its well performances.

关键词： power control Capacitors Energy storage Distributed control power supplies Voltage control power system harmonics Inverters Reactive power control Current control

来源：评论

学校读者我要写书评

暂无评论

Dielectric barrier discharge in nitrogen and argon

Dielectric barrier discharge in nitrogen and argon

引用

IEEE International Conference on Plasma Science (ICOPS)

作者： Zhan Huamao Ding Lijian Li Chengrong Li Ming Beijing Key Laboratory of High Voltage & EMC Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control Ministry of Education North China Electric Power University Beijing China

Summary form only given. Dielectric barrier discharges in air are generally streamer-like discharges, however, a homogeneous discharge, called atmospheric pressure glow discharge, may be obtained in some noble gases such as helium and argon. Dielectric barrier discharges in nitrogen and argon are studied experimentally to determine mechanisms controlling the transition from glow to streamer discharge. The influences of the applied voltage, the gas gap distance, the gas pressure and other factors on the discharge are investigated. The characteristics of the dielectric barrier discharge in nitrogen and argon are analyzed and compared. The aim of the paper is to study the experimental conditions of obtaining an atmospheric pressure glow discharge in nitrogen and argon. The possibility of obtaining an atmospheric pressure glow discharge in air is examined by increasing the proportion of air in nitrogen gradually. The waveforms of the applied voltage and discharge current under different experimental conditions are reported, which is helpful to describe the characteristics of the discharge and judge whether the discharge is a glow discharge or not

关键词： Dielectrics Nitrogen Argon Glow discharges Laboratories Voltage Atmospheric waves Electromagnetic compatibility power system protection power system dynamics

来源：评论

学校读者我要写书评

暂无评论

Novel method for disturbance identification in power systems

Novel method for disturbance identification in power systems

引用

IEEE General Meeting power& Energy Society

作者： T.S. Bi X.N. Song J.T. Wu Q.X. Yang Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control under Ministry of Education North China Electric Power University Beijing China Sifang Protection and Control Company Limited Beijing China

With the development of power grid interconnection, it is necessary for operators to know about system dynamic status while disturbance occurs in power systems in order to take appropriate counter measures to ensure the power system security. The advent of wide area measurement system (WAMS) makes the monitoring of power system dynamic behavior become possible. Based on WAMS, a method for identifying different kinds of disturbance in power system is presented in this paper. Firstly, the features of disturbances (i.e. short circuit, load shedding and loss of generation) that frequently occur in power system are analyzed in detail. Then, based on the idea of pattern recognition, the suggested disturbance identification method is discussed. Finally, computer simulation results are carried out in North China power grid, which demonstrate the validity of theoretical analysis and the feasibility of the proposed disturbances identification method

关键词： power systems power system dynamics power system measurements power system security power system interconnection power grids Wide area measurements power system analysis computing power system simulation Integrated circuit interconnections

来源：评论

学校读者我要写书评

暂无评论

The influence of mobile signal in UHF PD monitoring and our solving

The influence of mobile signal in UHF PD monitoring and our ...

引用

International Symposium on Electrical Insulation

作者： Wei Wang Chengrong Li Bin zheng Guiqian Zhao North China Electric Power University Beijing Beijing CN Beijing Key Laboratory of High Voltage & EMC Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control Beijing China

In this paper, the influence of mobile signal in UHF PD monitoring is discussed in types of substation in China. To find the solving, the GSM mobile signal's spectrum are measured and analyzed both in laboratory and onsite. The results show that the mobile signal's spectrum is broad when the phone signal is emitted. It is hard to avoid this interfere only by using narrow measuring band. At the same time, the GSM mobile signal's transmission characteristic in GIS was simulated in our model under laboratory conditions. In brief, our findings are discussed through two projects. The results show our finding is available and effective

关键词： monitoring Substations GSM Laboratories Multiaccess communication UHF measurements Signal analysis Filters Interference Geographic Information systems

来源：评论

学校读者我要写书评

暂无评论

Study on Wide Area Backup protection to Prevent Cascading Trips Caused by Flow Transferring

Study on Wide Area Backup Protection to Prevent Cascading Tr...

引用

IEEE PES Transmission and Distribution Conference and Exposition

作者： Xu Bi Huang Yang Si Fang Research Institute Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control Ministry of Education North China Electric Power University Beijing China

Protective relays, pivotal devices that can quickly identify and isolate fault area in power systems, is of great importance for power network security and reliability. When relays trip a faulted line in the network, the flow on the faulted line will be transferred to the other lines. Those lines might be overloaded and then cascading tripped by the backup relays, which worsen the system state and even cause blackout. Studies on several well-known blackouts reveal that protective relays are involved and the most troublesome ones are backup protective relays. In this paper the defects of the existing backup protections are investigated in detail first. Then a new wide area backup protection scheme based on WAMS to identify flow transferring is presented. A new concept of flow transferring relativity factor (FTRF) is proposed to estimate the flow distribution after flow transferring occurs; and the method of calculating FTRF matrix on-line is also stated. The simulation of a three machines network shows that the wide-area backup protection scheme to identify flow transferring works well

关键词： power system protection Protective relaying power system relaying power system security power system faults power system reliability Wide area measurements Fault diagnosis power system interconnection Bismuth

来源：评论

学校读者我要写书评

暂无评论

没有更多数据了...

全选清除本页清除全部题录导出标记到“检索档案”

共61页 << < 44 45 46 47 48 49 50 51 52 53 > >>

检索报告对象比较合并检索0

隐藏清空

合并搜索

回到顶部

执行限定条件

内容：

评分：

请选择保存的检索档案：

请选择收藏分类：

订阅名称：

通借通还

温馨提示：

图书名称：

借书校区：

取书校区：

手机号码：

邮箱地址：

一卡通帐号：

电话和邮箱必须正确填写，我们会与您联系确认。

联系人：

所在院系：

联系邮箱：

联系电话：

内蒙古自治区呼和浩特市赛罕区大学西街235号邮编: 010021

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：