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

317 篇 会议
255 篇 期刊文献

馆藏范围

572 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

383 篇 工学
- 180 篇 电气工程
- 111 篇 控制科学与工程
- 104 篇 计算机科学与技术...
- 91 篇 软件工程
- 67 篇 动力工程及工程热...
- 60 篇 电子科学与技术（可...
- 42 篇 机械工程
- 30 篇 信息与通信工程
- 26 篇 化学工程与技术
- 20 篇 仪器科学与技术
- 19 篇 材料科学与工程（可...
- 18 篇 生物工程
- 14 篇 生物医学工程（可授...
- 13 篇 土木工程
- 9 篇 光学工程
- 9 篇 环境科学与工程（可...
- 9 篇 安全科学与工程
182 篇 理学
- 93 篇 数学
- 54 篇 系统科学
- 39 篇 物理学
- 24 篇 统计学（可授理学、...
- 23 篇 化学
- 19 篇 生物学
- 8 篇 大气科学
63 篇 管理学
- 48 篇 管理科学与工程(可...
- 18 篇 工商管理
- 16 篇 图书情报与档案管...
15 篇 经济学
- 15 篇 应用经济学
14 篇 医学
- 13 篇 临床医学
- 9 篇 基础医学(可授医学...
5 篇 农学
4 篇 法学
2 篇 军事学
1 篇 艺术学

主题

15 篇 power systems
13 篇 optimization
12 篇 topology
12 篇 power system sta...
11 篇 control systems
10 篇 voltage
10 篇 switches
10 篇 mathematical mod...
9 篇 stability analys...
9 篇 multi-agent syst...
8 篇 model predictive...
8 篇 automation
8 篇 load modeling
8 篇 laboratories
8 篇 actuators
8 篇 electrodes
8 篇 equations
8 篇 capacitors
7 篇 impedance
7 篇 power system mod...

机构

40 篇 state key labora...
19 篇 state key labora...
15 篇 department of au...
13 篇 ieee
12 篇 department of au...
11 篇 school of contro...
10 篇 state key labora...
9 篇 key laboratory o...
9 篇 charles l.brown ...
9 篇 power system aut...
9 篇 department of au...
8 篇 department of au...
7 篇 guangdong-hongko...
6 篇 department of au...
6 篇 state key labora...
6 篇 department of au...
5 篇 china electric p...
5 篇 college of elect...
5 篇 school of mechat...
5 篇 the department o...

作者

32 篇 zongli lin
13 篇 yuanlong li
12 篇 kang li
11 篇 stanislaw grzybo...
11 篇 li kang
11 篇 jian li
9 篇 yin xiang
8 篇 jingcheng wang
8 篇 lin zongli
8 篇 liu feng
7 篇 zhiyun zhao
6 篇 wang zhaojian
6 篇 li zhaojian
6 篇 lingfeng wang
5 篇 niyato dusit
5 篇 yang bo
5 篇 zengping wang
5 篇 wang jingcheng
5 篇 li jiajia
5 篇 karen l. butler-...

语言

514 篇 英文
41 篇 其他
16 篇 中文
1 篇 葡萄牙文

检索条件"机构=Power System Automation Laboratory of the Electrical and Computer Engineering Department"

共 572 条记录，以下是491-500 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：

Recognition on ultra-high-frequency signals of partial discharge by support vector machine

Recognition on ultra-high-frequency signals of partial disch...

引用

International Conference on High Voltage engineering and Application, ICHVE

作者： Tianyan Jiang Jian Li Mingying Chen Stanislaw Grzybowski State Key Laboratory of Power Transmission Equipment & System Security and New Technology College of Electrical Engineering Chongqing University Chongqing China Department of Electrical and Computer Engineering High Voltage Laboratory MS USA

This paper presented a novel approach to recognize ultra-high-frequency (UHF) signals of partial discharges (PDs). Four artificial insulation defect models were designed to generate PD UHF signals, which were detected by a Peano fractal antenna in experiments. Wavelet packet (WP) decomposition was used to decompose PD UHF signals into multiple scales. A group of energy parameters and fractal dimensions of PD UHF signals were computed and used as the input parameters of a support vector machine (SVM), which was used as the PD pattern classifier. For verifying the results of this approach, a back-propagation neural network (BPNN) was also used for pattern recognition of PD UHF signals. The recognition results showed that the SVM and the proposed parameters were qualified for PD pattern recognition and the SVM had advantages over the BPNN for the purpose.

关键词： Partial discharges Support vector machines Fractals Pattern recognition Atmospheric modeling Fractal antennas Insulation

来源：评论

学校读者我要写书评

暂无评论

Performance evaluation of a PBIL-based power system damping controller

Performance evaluation of a PBIL-based power system damping ...

引用

Congress on Evolutionary Computation

作者： K. A. Folly G. K. Venayagamoorthy Department of Electrical Engineering University of cape Town South Africa Real-Time Power Intelligent System laboratory Department of Electrical and Computer Engineering Missouri University of Science and Technology Rolla MO USA

Recently Population-Based Incremental Learning (PBIL) algorithm has been applied to a range of problems in engineering with promising results. However, in most of the literature the standard PBIL with fixed learning rate has been used. It has been shown that when applied to dynamic environment as the one encountered in power systems, adaptive learning rate is more appropriate to use. In this paper, Population-Based Incremental Learning (PBIL) algorithm with adaptive learning rate is used to tune the parameters of a power system controller for damping power oscillations in a multi-machine power system. The optimization of controller's parameters has been performed over pre-specified range of system operating conditions. Robustness Evaluation of the proposed controller based on eigenvalue analysis and time domain simulation shows that the proposed controller is more robust than the conventional controller over the range of operating conditions considered.

关键词： Time domain analysis Analytical models power generation Eigenvalues and eigenfunctions

来源：评论

学校读者我要写书评

暂无评论

A systematic gain setting method of the positive feedback anti-islanding scheme for inverter-based distributed generators

A systematic gain setting method of the positive feedback an...

引用

International Conference on power system Technology (powerCON)

作者： Xiaoyu Wang Shouzhen Zhu Jing Yong Jinghong Zheng Wilsun Xu State Key Laboratory of Power Transmission Equipment & System Security and New Technology Chongqing University Chongqing China State Key Laboratory of Power Systems Department of Electrical Engineering Tsinghua University Beijing China Department of Electrical and Computer Engineering University of Alberta Edmonton AB Canada

This paper proposes a systematic gain setting method for the positive feedback anti-islanding scheme which is designed to protect the interconnected inverter-based distributed generators (DGs) from islanding operation. Two main factors affecting the performance of the anti-islanding scheme are investigated when the positive feedback gain is tuned. One is the stability impact of the anti-islanding control on distributed generation (DG) systems and the other is the islanding detection time of the anti-islanding scheme. The small-signal model and the electromagnetic transient simulation model of an inverter-based DG system are developed to facilitate the realization of the proposed gain setting method. This method provides a practical and reliable tool for DG planning engineers.

关键词： Laboratories Electromagnetics

来源：评论

学校读者我要写书评

暂无评论

electrical properties of nano-modified insulating vegetable oil

Electrical properties of nano-modified insulating vegetable ...

引用

Conference on electrical Insulation and Dielectric Phenomena, (CEIDP)

作者： Zhaotao Zhang Jian Li Pin Zou Stanislaw Grzybowski State Key Laboratory of Power Transmission Equipment & System Security and New Technology Department of High Voltage and Insulation Engineering College of Electrical Engineering Chongqing University Chongqing China High Voltage Laboratory Department of Electrical and Computer Engineering Mississippi State University MS USA

Insulating vegetable oils are fire-resistant and environment-friendly liquid dielectrics. This paper presents a type of nano-modified insulating vegetable oil. The nano-modified insulating vegetable oil was prepared by homogeneous precipitation deposition of ferroferric oxide nano-particles. It was characterized by a laser nano-particle size analyzer. Its electric properties, including AC breakdown voltage, lightning impulse breakdown voltage, volume resistivity, relative permittivity, and dissipation factor were measured. Experiment results show that the ferroferric oxide nano-pariticles with proper content in oil improves the breakdown voltages, volume resistivity, and lightning impulse electrical strength of the insulating vegetable oil significantly.

关键词： Petroleum Lightning Voltage measurement Dielectrics Conductivity Permittivity Electrodes

来源：评论

学校读者我要写书评

暂无评论

Requirements and calculating methods for maximum insulated conductor temperatures in oil-immersed transformers

Requirements and calculating methods for maximum insulated c...

引用

International Conference on High Voltage engineering and Application, ICHVE

作者： Taosha Jiang Stanislaw Grzybowski Jian Li Department of Electrical and Computer Engineering Mississippi State University MS USA State Key Laboratory of Power Transmission Equipment & System Security and New Technology Chongqing University Chongqing China

This paper gives a summary of the requirements and calculating methods for the maximum insulated conductor temperatures (usually referred to as hottest-spot temperature or hot spot temperature) in oil-immersed transformers. laboratory experiments were performed on a 5 kV, 100 kVA transformer using thermocouples during the short circuit heat run tests, and the measurements from the tests are employed to compare some of the methods mentioned in the paper.

关键词： Temperature measurement Oil insulation power transformer insulation Load modeling Mathematical model Loading

来源：评论

学校读者我要写书评

暂无评论

Interharmonics: Signaling processing issues and applications

Interharmonics: Signaling processing issues and applications

引用

IEEE General Meeting power& Energy Society

作者： Alexandre B. Nassif Jing Yong Wilsun Xu Department of Electrical and Computer Engineering University of Alberta Edmonton AB Canada State Key Laboratory of Power Transmission Equipment & System Security and New Technology Chongqing University Chongqing China

This paper discusses the difficulties related to interharmonic measurement and characterization. A simple FFT-based signal processing tool is proposed to analyze time-varying interharmonics. This tool is generally effective in determining interharmonic frequencies and magnitudes for many signaling applications, overcoming some of the issues related to interharmonic measurement. The problem of interharmonic source identification is also addressed and the limitations of a widely accepted method, the power direction method, are discussed.

关键词： Indexes Harmonic analysis Frequency measurement power system harmonics power measurement Voltage measurement

来源：评论

学校读者我要写书评

暂无评论

Internal model control for hysteretic nonlinear systems based on support vector regression

Internal model control for hysteretic nonlinear systems base...

引用

World Congress on Intelligent Control and automation (WCICA)

作者： Wenguang Zhang Jianqin Mao Yanhua Ma Beijing Key Laboratory of Measurement and Control Technology and System for Industrial Process Control & Computer Engineering School North China Electric Power University Beijing China School of Automation Science and Electrical Engineering Beijing Aeronautics and Astronautics University Beijing China

Aim at the hysteretic nonlinearity characteristic of the giant magnetostrictive actuator in control, an internal model control method based on support vector regression is presented in this paper. Its models are built by support vector regression using the input and output data of the actuator and the internal model control is achieved. The simulation results show the method in this paper has better control precision.

关键词： Support vector machines Actuators automation Data models Computational modeling Hysteresis Magnetostriction

来源：评论

学校读者我要写书评

暂无评论

A methodology for power quality evaluation in distribution network with distributed generation

A methodology for power quality evaluation in distribution n...

引用

International Conference on Critical Infrastructures, CRIS

作者： Gengyin Li Zhe Zhang Xiang Li Song Wang Ming Zhou Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control under Ministry of Education North China Electric Power University Beijing China Department of Electrical Engineering Tsinghua University Haidian Beijing China School of Electrical and Computer Engineering North China Electric Power University Beijing China

ISBN: (纸本)9781424480807

The issue of power quality in the distribution system is always in sense of the concern. With the high penetration of distributed generation (DG) currently, it tends to be more complicated. This paper presents a new approach to evaluate impacts of the DG on power quality of the distribution network. In the process an objective function will be modeled, which will be solved by the optimization toolbox, in order to calculate the result for the evaluating grade. Furthermore, the results of the overall evaluation will be given via the eigenvalue weighted method. The power quality ranking of each feeder with the distributed generators in the distribution network will be apparent with the given weight of influence caused by DGs divided in forms of energy resource.

关键词： power quality Generators Indexes Distributed power generation Eigenvalues and eigenfunctions Optimization Voltage fluctuations

来源：评论

学校读者我要写书评

暂无评论

A robust sensorless fault diagnosis algorithm for low cost motor drives

A robust sensorless fault diagnosis algorithm for low cost m...

引用

Annual IEEE Conference on Applied power Electronics Conference and Exposition (APEC)

作者： Seung-deog Choi Bilal Akin Mina M. Rahimian Hamid A. Toliyat Advanced Electric Machines & Power Electronics Laboratory Department of Electrical & Computer Engineering Texas A and M University College Station TX USA C2000 System & Applications Texas Instruments Inc. Stafford TX USA

This paper presents a sensorless fault diagnosis technique for low cost AC drives. Currently, in order to achieve a reliable fault diagnosis, a high resolution speed sensor is employed to measure the frequencies of fault signature which depends on motor shaft speed. There is an increased tendency toward sensorless control of AC motor drives because of mounting problems, associated cost, etc. Therefore, the speed sensors become less common feedback tools in high performance motor control applications. The fault diagnosis becomes quite a challenging task in the absence of information from a speed sensor as highly precise motor speed estimation is needed. In this paper, a simple and efficient algorithm for fault diagnosis is proposed utilizing frequency tracking method which does not require speed sensor feedback. It is explicitly verified that the performance of the proposed algorithm is almost comparable to the cases where an accurate speed sensor is used. The algorithm is derived mathematically and its efficacy is proved experimentally using a 3-hp motor generator setup.

关键词： Robustness Fault diagnosis Costs Motor drives AC motors Feedback Current measurement Frequency measurement Velocity measurement Shafts

来源：评论

学校读者我要写书评

暂无评论

electrical Breakdown Properties of Oil-Paper Insulation under AC-DC Combined Voltages

Electrical Breakdown Properties of Oil-Paper Insulation unde...

引用

IEEE International power Modulator and Hogh Voltage Conference

作者： Yan Wang Jian Li Youyuan Wang Stanislaw Grzybowski State Key Laboratory of Power Transmission Equipment and System Security and New Technology College of Electrical Engineering Chongqing University High Voltage Laboratory Department of Electrical and Computer Engineering Mississippi State University

ISBN: (纸本)9781424471317

Oil-impregnated paper is a major type of insulation in oil-filled power transformers. In converter transformers, windings connected with converter valves have to withstand AC and DC combined voltages. This paper presented the experimental research on electrical breakdown properties of oilpaper insulation under AC-DC combined voltages. electrical breakdown strength of oil-paper insulation specimens was measured through short-time tests under AC, DC, and AC-DC combined voltages. The combined voltages consisted of two different ratios of the AC to DC voltages. Through the constant-stress tests, the times-to-breakdown of oil-paper specimens were measured. Weibull parameters of the times-to-breakdown of specimens were estimated and the inverse power and exponential failure models of the specimens were presented.

关键词： Converter transformer Oil-paper insulation AC-DC combined voltage electrical breakdown Failure model

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58页 << < 46 47 48 49 50 51 52 53 54 55 > >>

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：