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

531 篇 会议
56 篇 期刊文献
1 册 图书

馆藏范围

588 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

296 篇 工学
- 237 篇 电气工程
- 107 篇 计算机科学与技术...
- 97 篇 电子科学与技术（可...
- 81 篇 软件工程
- 70 篇 控制科学与工程
- 66 篇 动力工程及工程热...
- 22 篇 网络空间安全
- 21 篇 仪器科学与技术
- 20 篇 机械工程
- 17 篇 信息与通信工程
- 14 篇 安全科学与工程
- 11 篇 土木工程
- 10 篇 力学（可授工学、理...
- 8 篇 建筑学
- 7 篇 材料科学与工程（可...
- 6 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...
161 篇 理学
- 113 篇 数学
- 65 篇 物理学
- 28 篇 统计学（可授理学、...
- 17 篇 系统科学
- 9 篇 地球物理学
- 3 篇 化学
43 篇 管理学
- 40 篇 管理科学与工程(可...
- 16 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
1 篇 教育学

主题

55 篇 power system dyn...
53 篇 control systems
51 篇 voltage control
46 篇 voltage
44 篇 power system mod...
43 篇 power system pro...
42 篇 power quality
40 篇 power system rel...
36 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...
25 篇 power system sec...
24 篇 power system ana...
24 篇 analytical model...

机构

80 篇 key laboratory o...
80 篇 key laboratory o...
61 篇 key laboratory o...
37 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...
8 篇 department of el...
7 篇 school of electr...
6 篇 key laboratory o...
6 篇 department of el...
6 篇 key laboratory o...
6 篇 department of el...
5 篇 key laboratory o...
5 篇 key laboratory o...

作者

72 篇 gengyin li
59 篇 ming zhou
39 篇 chengyong zhao
30 篇 xiangning xiao
30 篇 zhongdong yin
27 篇 li gengyin
24 篇 zengping wang
23 篇 xiao xiangning
21 篇 wang zengping
21 篇 zhou ming
18 篇 tianshu bi
15 篇 ma jin
15 篇 zhao chengyong
15 篇 jing ma
14 篇 jianhua zhang
13 篇 qixun yang
13 篇 jinfang zhang
13 篇 wei wang
13 篇 yagang zhang
13 篇 he renmu

语言

536 篇 英文
52 篇 中文

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

共 588 条记录，以下是561-570 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：

Multiobjective Optimization Scheduling Based on Fuzzy Genetic Algorithm in Cascaded Hydroelectric Stations

Multiobjective Optimization Scheduling Based on Fuzzy Geneti...

引用

IEEE/PES Transmission and Distribution Conference and Exhibition: Asia and Pacific

作者： Hu Guoqiang He Renmu Ma Rui Wang Peng Yang Huachun Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control Ministry of Education North China Electric Power University Beijing China

The multi-objective fuzzy optimal method based on the fuzzified optimal solutions of single objectives need not list all non-inferior solution sets, which can optimize directly objectives in value area of variables. This method can reflect the interrelation between individual objective optimal solutions and multi-objective optimal solution. On the basis of fundamental principle of multi-objective fuzzy optimization and genetic algorithm, combing with the concept of objective relative subject degree, this paper presents a multi-objective optimization approach for the hydroelectric power system with contradictory objectives. The proposal method considers the satisfied degree of various characters and contradictory objectives and seeks an appropriate optimized solution to make each objective optimal as possible considering each objective comprehensively. The simulation results of example show that the fuzzy genetic algorithm is an effective method for multi-objective optimization problem in the cascaded hydroelectric plants

关键词： Genetic algorithms Optimization methods power system dynamics Laboratories power system protection power system security monitoring Fuzzy systems control systems Fuzzy set theory

来源：评论

学校读者我要写书评

暂无评论

Self zero sequence component control of dynamic voltage restorer in systems with different neutral point grounded modes

Self zero sequence component control of dynamic voltage rest...

引用

International power Engineering Conference (IPEC)

作者： Zhongdong Yin Lixia Zhou Laboratory of Power System Protection and Dynamic Security Monitoring and Control Ministry of Education. China Electric Power University China

ISBN: (纸本)9810557027

The dynamic voltage restorer (DVR) has become popular as a cost effective solution for the protection of sensitive loads from voltage problems such as sags. There are many investigations on DVR dealing with the unbalanced operation situations, however, few found in the area relating to DVR self zero sequence component control in power grid with different neutral point grounded modes. In fact, incorrect control strategy of zero sequence will lead DVR to instability in a special system condition. This paper studies the generating mechanism of self zero sequence component in systems with different neutral point grounded modes and presents effective control strategy to get rid of its influence. Simulations are carried out to verify the validity of proposed self zero sequence component control strategy

关键词： Voltage control control systems power harmonic filters Frequency power system restoration power system harmonics Costs power system protection power grids power quality

来源：评论

学校读者我要写书评

暂无评论

Multiagent And WAN Based Adaptive Coordinated protection system

Multiagent And WAN Based Adaptive Coordinated Protection Sys...

引用

IEEE/PES Transmission and Distribution Conference and Exhibition: Asia and Pacific

作者： Song Shaoqun Zhu Yongli Huang Min Yu Hong Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control under Ministry of Education North China Electric Power University Baoding China North China Electric Power University Baoding China

This paper presents a multi-agent and WAN based adaptive coordinated protection system (MAWBACPS). The system utilizes IP intranet to realize real-time wide area information exchange of a power system. Multi-agent system's several good qualities to solve distributing problems are used to realize the coordination of the operation settings of protective relays. A new idea of effortful adaptation for power system protection is proposed, and a new method to determine adaptive coordinated relay settings of lines are proposed in this paper. Moreover, the structure, communication mechanism and coordination control strategy of MAWBACPS, and relating agents' design are presented. Experiment results illustrate that MAWBACPS can realize the coordination of protections, enable the back-up relays to use their adaptive settings in most situations, and efficiently improve the security of power system

关键词： Wide area networks Adaptive systems power system protection power system relaying Protective relaying power system reliability power system security Communication system control Communication system security Substation protection

来源：评论

学校读者我要写书评

暂无评论

The Research of Electric Appliance Running Status Detecting Based on DSP

The Research of Electric Appliance Running Status Detecting ...

引用

IEEE/PES Transmission and Distribution Conference and Exhibition: Asia and Pacific

作者： Baoshu Li Chao Quan Shutao Zhao Weiguo Tong Peng Tao Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control under Ministry of Education North China Electric Power University Baoding Hebei China North China Electric Power University Baoding China

A new load detection method was presented based on its running status of power system. The loads are sorted according to their index of capacitive, inductive, and none-linear. The static character of each load was got according to the time-distribution. The concept of load detection is completed. The data-sample and wave recording equipment is designed and assembled based on the DSP for power loads status detecting. The superior software was designed for data management and analyzing. The recognizing status data was analyzed in both time-domain and frequency-domain; the identifying method for electric power loads status is deduced based on the correlation coefficient; the mathematical model for the status identifying is built; the trueness and validity of the methods is verified based on the testing and analyzing

关键词： Home appliances Digital signal processing Data analysis power systems Assembly Software design Time domain analysis Frequency domain analysis Mathematical model Testing

来源：评论

学校读者我要写书评

暂无评论

New Mitigating Measures against Core Saturation by Series of Additional Grounding Resistance from the Point of View of Network Configuration

New Mitigating Measures against Core Saturation by Series of...

引用

IEEE/PES Transmission and Distribution Conference and Exhibition: Asia and Pacific

作者： Yulong Ma Xiangning Xiao Xu Jiang Laboratory of Power System Protection and Dynamic Security Monitoring and Control Ministry of Education North China Electric Power University Beijing China

High current of HVDC grounding electrode will induce a high potential in the nearby substation ground grid if the soil resistivity is high. Once there are potential differences among the ground grids, direct current will flow through the neutral grounded transformer. If the direct current through transformer winding is high enough core saturation will occur. The paper presented a method of series of additional resistance between the transformer neutral point and ground grid from the point of view of network configuration. A novel optimized algorithm is adopted in order to calculate the grounding resistance. Method presented in the paper is tested with China South Grid data. Results show that current through transformer neutral point can be reduced greatly and thus core saturation can be avoided

关键词： Electrical resistance measurement Grounding Circuit faults Transformer cores Soil measurements HVDC transmission Electrodes Substations Conductivity Windings

来源：评论

学校读者我要写书评

暂无评论

A novel harmonics injecting approach on over saturation suppression of DVR series injection transformer

A novel harmonics injecting approach on over saturation supp...

引用

International power Engineering Conference (IPEC)

作者： Zhongdong Yin Lixia Zhou Laboratory of Power System Protection and Dynamic Security Monitoring and Control Ministry of Education. North China Electric Power University China

ISBN: (纸本)9810557027

Voltage problems can be effectively solved by series compensators coupled with series injection transformers. However, the magnetic flux in iron core of series transformer may change in a large range depending on the close angle of injecting voltage, at the same time iron core easily get over saturated. Over saturation in transformer iron core leads to produce large field inrush current and distortion on compensating voltage wave, bring about hazard to operation of transformer and inverter, also increase the possibility of relay mishandling and finally decrease reliability of power supply. This paper analyzes the over saturation mechanism of series injection transformer and presents a novel harmonics injection control approach to suppress. The validity of proposed approach is verified by calculation and simulation

关键词： Circuit faults Iron Transformer cores Magnetic cores Magnetic flux Surges Hazards Inverters Relays power supplies

来源：评论

学校读者我要写书评

暂无评论

PD detection of XLPE cables accessories on UHF

PD detection of XLPE cables accessories on UHF

引用

Conference on Electrical Insulation and Dielectric Phenomena, (CEIDP)

作者： Bin Zheng Wei Wang Chengrong Li Changyu Li Luhua Zhang Beijing Key laboratory of High Voltage & EMC Key Laboratory of Power System Protection Dynamic Security Monitoring and Control Ministry of Education North China Electric Power University Beijing China

monitoring the partial discharge (PD) on site in cables accessories is now a more effective method of cable tests. Meaningful PD measurement can obtain reliable information on the condition of sealing ends and joints after installation or several years of operation which can contribute to considerable overall reduction of error risk. The UHF (ultra high frequency) method is an effective PD detection method. It shows out the superiority in measurement sensitivity and suppressing interference. It has been confirmed that the frequency of the PD pulse generated in cables can reach up to GHz, while the frequency of background noise usually lies below 400 MHz. Experiments show that the UHF PD pulse can radiate from the disconnection between the shields in the sealing ends or the joints, and it can also radiate out along the ground wire or the cross-linked wire. Moreover, the detection by UHF sensor towards four different types of PD models have been done in laboratory, such as sliding discharge model, floating discharge model, protrusion discharge model and cavity discharge model. Mass of statistic results of these PD pulses indicate the distinct characteristics. It can help to do the pattern recognition research, even to do further research on fault diagnosis for XLPE cables.

关键词： Cables Partial discharges Frequency UHF measurements Wire Testing Partial discharge measurement Interference suppression Pulse generation Background noise

来源：评论

学校读者我要写书评

暂无评论

Data Envelopment Analysis Based Strategy of Assessing Schemes for power system Black Start

Data Envelopment Analysis Based Strategy of Assessing Scheme...

引用

IEEE/PES Transmission and Distribution Conference and Exhibition: Asia and Pacific

作者： Liu Yan Gu Xueping Zhang Dan Laboratory of Power System Protection and Dynamic Security Monitoring and Control under Ministry of Education North China Electric Power University Baoding Hebei China Dispatching Center of Yunnan Power Company Kunming China

Restoration of a power system after a complete blackout is a very important issue to the safety of the power system. Reasonable black start schemes are necessary to restore the power system as soon as possible. Based on data envelopment analysis, a new strategy for assessing black start schemes is proposed in this paper. Schemes' technical verification is taken into consideration in the process of the assessment. Whether a scheme is effective is defined by employing its input and output indexes' values entirely. The application to a practical power system verifies that the method could provide dispatchers more comprehensive and objective decision references

关键词： Data envelopment analysis power system analysis computing power system restoration power system reliability power system protection power system economics power system faults power system measurements Safety control systems

来源：评论

学校读者我要写书评

暂无评论

power Quality control Center and Its control Method

Power Quality Control Center and Its Control Method

引用

IEEE/PES Transmission and Distribution Conference and Exhibition: Asia and Pacific

作者： Peng Li Qian Bai Baoli Zhao Yihan Yang Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control under Ministry of Education North China Electric Power University Baoding Hebei China Baoding Baoling Transformer Company Limited Baoding Hebei China

power quality becomes an emphasis of related researches. Based on the detailed study on QCC (quality control center) of the FRIENDS first advanced by Japanese scholars, the functions of QCC are expanded and its basic types and structures are defined. Meanwhile, by detailed study, this paper introduces the multiple adjusting functions of UPQC (unified power quality conditioner) which is the chief part of QCC and presents its typical topological circuit. Moreover, H infin control technology is used to realize the synthesis tracking compensation of voltage and current for UPQC. Finally its validity has been testified successfully

关键词： power quality power supplies power system reliability Automatic control Energy management Quality management Communications technology Quality control power system management power generation economics

来源：评论

学校读者我要写书评

暂无评论

The Output Spectrum Analysis of High-power Multilevel Voltage Source Converters using Double Fourier Series

The Output Spectrum Analysis of High-Power Multilevel Voltag...

引用

IEEE/PES Transmission and Distribution Conference and Exhibition: Asia and Pacific

作者： Xu Jiang Xiangning Xiao Hao Liu Yulong Ma Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control Ministry of Education North China Electric Power University Beijing China Electric Power of Henan Zhengzhou China

This paper presents a theoretically analytical technique for determining the spectral components of high-power multilevel voltage source converters. The technique uses double Fourier series to analyze the output waveform of multilevel asynchronous asymmetrical regular sampling SVPWM converter. The 3-D spectrum representation of the SVPWM based on the extension geometrical-wall-model is given in this article. According to the analytical method of two-level SVPWM and the phase-shifted carrier PWM, the new DFS of multilevel SVPWM of single phase is obtained. In order to validate the theoretically analytical method, a six modules cascaded H-bridge converter model using PSCAD is built. By comparing the spectrum and waveform calculated with the simulation, the correctness of the analytical formulas has been proved. And the technique can act as the method of selection PWM. Moreover, the technique can be used to analyze the output waveform of the high-voltage and high-power FACTS equipments, such as SVG, SSSC, UPQC

关键词： Voltage Fourier series Space vector pulse width modulation Harmonic analysis Switching frequency Sampling methods Analytical models power system harmonics Pulse width modulation inverters PSCAD

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59页 << < 50 51 52 53 54 55 56 57 58 59 > >>

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：