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

225 篇 会议
9 篇 期刊文献

馆藏范围

234 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

124 篇 工学
- 71 篇 电气工程
- 39 篇 电子科学与技术（可...
- 26 篇 计算机科学与技术...
- 20 篇 信息与通信工程
- 20 篇 软件工程
- 14 篇 仪器科学与技术
- 14 篇 动力工程及工程热...
- 13 篇 控制科学与工程
- 8 篇 机械工程
- 5 篇 生物医学工程（可授...
- 3 篇 生物工程
- 2 篇 材料科学与工程（可...
- 2 篇 水利工程
- 2 篇 化学工程与技术
- 2 篇 船舶与海洋工程
- 2 篇 环境科学与工程（可...
39 篇 理学
- 27 篇 数学
- 12 篇 物理学
- 4 篇 系统科学
- 2 篇 化学
- 2 篇 生物学
- 2 篇 统计学（可授理学、...
8 篇 管理学
- 8 篇 管理科学与工程(可...
- 4 篇 工商管理
5 篇 医学
- 5 篇 基础医学(可授医学...
- 5 篇 临床医学
- 3 篇 药学(可授医学、理...
- 2 篇 公共卫生与预防医...
3 篇 教育学
- 3 篇 教育学
2 篇 农学
- 2 篇 作物学
1 篇 经济学
1 篇 法学
1 篇 军事学

主题

30 篇 topology
25 篇 voltage control
23 篇 pulse width modu...
21 篇 capacitors
18 篇 switches
17 篇 mathematical mod...
16 篇 harmonic analysi...
15 篇 harmonic distort...
12 篇 inverters
11 篇 legged locomotio...
11 篇 inductors
8 篇 inductance
7 篇 power harmonic f...
7 篇 reactive power
6 篇 load modeling
6 篇 optimization
6 篇 power quality
6 篇 voltage measurem...
6 篇 hardware
5 篇 power system har...

机构

11 篇 post-graduation ...
8 篇 post-graduate pr...
6 篇 universidade fed...
4 篇 post-graduate pr...
4 篇 post-graduate pr...
3 篇 campina grande p...
3 篇 department of el...
3 篇 post-graduation ...
3 篇 post-graduate pr...
3 篇 department of el...
3 篇 systems optimiza...
3 篇 post-graduate pr...
3 篇 electrical engin...
3 篇 post-graduate pr...
2 篇 federal universi...
2 篇 department of au...
2 篇 post-graduate pr...
2 篇 department of el...
2 篇 post-graduation ...
2 篇 post-graduation ...

作者

31 篇 cursino b. jacob...
13 篇 jacobina cursino...
10 篇 c. b. jacobina
9 篇 nady rocha
7 篇 alexandre c. oli...
6 篇 rafael cardoso
6 篇 italo roger f. m...
6 篇 alexandre jean r...
6 篇 reuben p. r. sou...
6 篇 victor f. m. b. ...
5 篇 serres alexandre...
5 篇 amanda p. montei...
5 篇 euzeli c. dos sa...
5 篇 maurício b. r. c...
5 篇 montiê a. vitori...
4 篇 ítalo a. cavalca...
4 篇 e. l. l. fabrici...
4 篇 emerson g. carat...
4 篇 emerson giovani ...
4 篇 marcelo s. alenc...

语言

225 篇 英文
7 篇 中文
2 篇 葡萄牙文

检索条件"机构=Post Graduation Program in Electrical Engineering - PPGEE"

共 234 条记录，以下是91-100 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：

Three-phase four-wire AC-DC-AC multilevel topologies obtained from an interconnection of three-leg converters

Three-phase four-wire AC-DC-AC multilevel topologies obtaine...

引用

IEEE Energy Conversion Congress and Exposition, ECCE

作者： Ayslan C. N. Maia Cursino B. Jacobina Nayara B. Freitas Antonio P. D. Queiroz Edison R. C. Silva Post-Graduate Program in Electrical Engineering - PPgEE Federal University of Campina Grande (UFCG) Campina Grande PB Brazil Federal Institute of Alagoas (IFAL) Palmeira dos Indios AL Brazil Federal Institute of Paraiba (IFPB) Picui PB Brazil

ISBN: (纸本)9781509007387

This paper investigates three AC-DC-AC multilevel topologies for three-phase four-wire (3P4W) applications obtained from an interconnection of three-leg voltage source converters (VSCs). The topologies provide bidirectional power flow and can be applied in line voltage regulators, universal active power filters and uninterrupted power supplies (UPS). Operating principles, a pulse-width modulation (PWM) technique and an overall control strategy are developed. The PWM and control strategies are suitable to regulate the DC-link voltage and to optimize the harmonic distortion, reducing switching stress and power losses. Simulation results are used to compare the proposed configuration with a conventional solution in terms of harmonic distortion and semiconductor losses. Experimental results are presented to validate the theoretical considerations and were obtained by using IGBTs with dedicated drives and a digital signal processor (DSP) with appropriated plug-in boards and sensors.

关键词： Voltage control Topology Legged locomotion Capacitors Pulse width modulation Harmonic distortion Power conversion

来源：评论

学校读者我要写书评

暂无评论

Evaluation of control strategies for LCL grid-tied distributed generation systems

Evaluation of control strategies for LCL grid-tied distribut...

引用

Brazilian Power Electronics Conference, COBEP

作者： Rafael Zamodzki Carlos M. O. Stein Emerson G. Carati Jean P. da Costa Rafael Cardoso Post-Graduation Program in Electrical Engineering - PPGEE Federal University of Technology - Parana Pato Branco PR Brazil

The LCL filter is one of the most used filters in grid connected distributed generation. It is mainly due to its efficiency and reduced physical size when compared to a typical L filter. However, the LCL filter has an inherent resonance frequency that can lead the system to instability or power quality degradation. The converter or the grid current can be used as controlled variable in the current controller. Based in this context, this paper analyzes the stability and studies the control issues brought by the dynamics of the LCL filter. A comparative analysis of the results provided by the use of different controlled variable in the current controller is presented. An evaluation of PI and PD control is done to verify which one is the better option to be used in the current control. A theoretical analysis is carried out based in the pole-zero map of the system, Bode diagrams and numerical simulation.

关键词： Power harmonic filters PD control Resonant frequency Stability analysis Inductance Poles and zeros

来源：评论

学校读者我要写书评

暂无评论

Dynamic behavior of the PV Grid-connected inverter based on L and LCL filter with active damping control

Dynamic behavior of the PV Grid-connected inverter based on ...

引用

Brazilian Power Electronics Conference, COBEP

作者： F. L. Paukner E. G. Carati R. Cardoso C. M. O. Stein J. P. da Costa Post-Graduation Program in Electrical Engineering - PPGEE Federal University of Technology - Parana Pato Branco PR Brazil

PV Grid-connected inverters must fulfill the standards specifications of current harmonics injected to the grid. In order to satisfy these grid requirements, passive filters are connected between the inverter and the grid. This paper compares the response characteristic of the traditional inductive (L) filter with the inductive-capacitive-inductive (LCL) filter. It is shown that the increasing the inductance L leads to a good ripple current suppression around the inverter switch frequency. The LCL filter provides better harmonic attenuation and reduces the filter size. The main drawback is the LCL filter impedance, which is characterized by a typical resonance peak, which has to be damped to avoid instability. Passive or active techniques can be used to damp the LCL resonance. To address this issue, this paper presents a comparison of passive and active damping strategies. Experimental results are given to support the theoretical analysis and to illustrate the performance of grid connected PV inverter system.

关键词： Power harmonic filters Inverters Mathematical model Resonant frequency Passive filters Inductors Damping

来源：评论

学校读者我要写书评

暂无评论

Comparison of sensorless techniques based on Model Reference Adaptive System for induction motor drives

Comparison of sensorless techniques based on Model Reference...

引用

Brazilian Power Electronics Conference, COBEP

作者： Diego D. Pinheiro Carlos M. O. Stein Jean P. Costa Rafael Cardoso Emerson G. Carati PPGEE - Program of Post-Graduation in Electrical Engineering ECEE Research Group on Static Converters Engineering Pato Branco Parana Brazil

This paper presents a comparison of sensorless vector control strategies for Induction Motor (IM). The strategies includes an Indirect Field Orientation Control (IFOC) and a Model Reference Adaptive System (MRAS). Several studies have been proposed in the literature concerning different approaches of MRAS estimators. In this work, an evaluation is performed of three MRAS approaches for estimate the rotor speed from different models: rotor flux, back electromotive force (back-EMF) and instantaneous reactive power. Matlab simulations are performed to test the proposed strategy for different speed and sensitivity of such drives to parameters variations. To verify the approach to sensorless techniques with variations of speed in real conditions a drive for the prototype was assembled and experimental results are presented.

关键词： Rotors Adaptation models Estimation Mathematical model Stators Induction motors Reactive power

来源：评论

学校读者我要写书评

暂无评论

Modeling and control of a XY positioning table

Modeling and control of a XY positioning table

引用

IEEE/IAS International Conference on Industry Applications

作者： Lucas J. da S. Moreira Christian C. Dias Rafael B. C. Lima Péricles R. Barros George Acioli Júnior Post-Graduate Program in Electrical Engineering - PPgEE - COPELE Graduate Program in Electrical Engineering - PGEE Electrical Engineering Department - DEE Federal University of Campina Grande - UFCG 58429-900 Campina Grande - PB - Brazil

ISBN: (纸本)9781509051281

This paper is about modeling and control of a XY positioning table. It is described the construction and instrumentation of a double axis positioning system. It is developed a general electromechanical model, followed by the identification of simplified models for control purposes. At last, it is proposed a PID control strategy, tuned by Internal Model Control (IMC) technique.

关键词： IMC XY PID

来源：评论

学校读者我要写书评

暂无评论

Software environments as learning tools for modeling engineering systems: A case study on decentralized multi-loop control system 7

Software environments as learning tools for modeling enginee...

引用

7th International Conference on Computer Supported Education, CSEDU 2015

作者： Melo, T.R. Silva, L.C. Perkusich, A. Silva, J.J. Da Rocha Neto, J.S. Post-Graduate Program in Electrical Engineering-PPgEE-COPELE Campina Grande-PB Brazil Campina Grande-PB Brazil Campina Grande-PB58429-900 Brazil

ISBN: (纸本)9789897581083

This paper describes the usage of the Matlab/Simulink and Ptolemy II environments as learning tools in the implementation of simulation models, which represent the decentralized multi-loop control system proposed for a fouling detection didactic platform. The platform is treated as a two-input two-output (TITO) plant with time delay, i.e., the voltage and current as the plant inputs and the flow and preßure as the plant outputs. In both the software environments, the control system is modeled as a cyber-physical system (CPS). Constructive details of each simulation model are shown, even as the main advantages and disadvantages of each learning tool are discußed and evaluated by engineering students.

关键词： Simulink

来源：评论

学校读者我要写书评

暂无评论

A bridgeless controlled rectifier for single split-phase systems

A bridgeless controlled rectifier for single split-phase sys...

引用

IEEE Energy Conversion Congress and Exposition, ECCE

作者： Nustenil S. M. L. Marinus Cursino B. Jacobina Euzeli C. dos Santos Nady Rocha Nayara B. de Freitas Post-Graduate Program in Electrical Engineering - PPgEE - COPELE Federal University of Campina Grande (UFCG) Campina Grande PB Brazil Federal Institute of the Ceará Electrical Engineering Department (DEE) Federal University of Paraíba (UFPB) João Pessoa PB Brazil Universidade Federal da Paraiba Centro de Ciencias da Saude Joao Pessoa PB BR

ISBN: (纸本)9781509007387

An unidirectional single-phase three-wire rectifier is proposed in this paper. Such a proposed topology is composed of a non-controlled leg, two controlled legs and a capacitor bank. A suitable model and control strategy of the system, including a synchronization method, are proposed as well. The synchronization method, associated with the PWM strategy, imposes the grid currents to have the same phase angle of the generated voltages by rectifier. This method ensures sinusoidal grid currents and mitigate the zero-crossover distortions normally caused by the use of diodes. A comprehensive comparison with two conventional configurations is also presented in this paper. Simulation and experimental results are also presented for validation purposes.

关键词： Legged locomotion Topology Voltage control Capacitors Semiconductor diodes Synchronization Harmonic distortion

来源：评论

学校读者我要写书评

暂无评论

STUDY OF ENERGY EFFICIENCY IN DRY-TYPE TRANSFORMER UNDER SUB- AND INTERHARMONIC IN THE POWER SUPPLY VOLTAGE

STUDY OF ENERGY EFFICIENCY IN DRY-TYPE TRANSFORMER UNDER SUB...

引用

Brazilian Power Electronics Conference

作者： Danielle Cristinny L. Silva Renan H. Sousa Francisco Kleber A. Lima Carlos Gustavo C. Branco Department of Electrical Engineering Post-Graduation Program in Electrical Engineering UFC - Federal University of Ceara

ISBN: (纸本)9781479987801

Additional losses in transformers due to harmonic distortion cause further heating in their structural parts, and damage their suitable operation, thereby reducing their lifetime. This paper proposes an energy efficiency study in transformer, by comparing the temperature measurements obtained from a 10 kVA three-phase dry transformer under sinusoidal voltage and current conditions, and under power supply voltage with sub- and interharmonic. It is also performed a comparison between experimental and simulation results obtained from a model 3D transformer developed in COMSOL Multiphysics software.

关键词： Dry-type transformer Interharmonic Sub-harmonic Energy efficiency

来源：评论

学校读者我要写书评

暂无评论

Specific absorption rate (SAR) in the head of tablet user's 7

Specific absorption rate (SAR) in the head of tablet user's

引用

7th Latin American Workshop on Communications, LAWC 2015

作者： Ferreira, Juliana Borges De Salles, Álvaro Augusto Almeida Post-graduation Program in Electrical Engineering Federal University of Rio Grande Do Sul UFRGS Porto Alegre RS Brazil Electrical Engineering Department Federal University of Rio Grande Do Sul UFRGS Porto Alegre RS Brazil

Wireless communication devices such as tablets are increasing and developing rapidly. The effects of the electromagnetic (EM) waves in the human body from the wireless communication devices have been paid attention. It is well known that the absorption of electromagnetic waves on the human head for a certain period of time may lead to health problems such as headaches, or even worse, significantly increased risk of brain cancer. In this paper, the Specific Absorption Rate (SAR) in the head of tablet user's is simulated for three different head models and compared with available international recommendations. The models used are the Specific Anthropomorphic Mannequin (SAM) and two realistic models of human head (a 34 years old adult and a 6 years old child). The simulations were performed using the finite difference time domain (FDTD) method and the frequency used to feed the antenna was 2.45 GHz. All the results are below the safety recommendations set up by the International Commission Non-Ionizing Radiation Protection (ICNIRP) and the Federal Communications Committee (FCC). Among the heterogeneous models, the highest peak spatial Specific Absorption Rate (psSAR) values are estimated for the children. For 1 g psSAR the child heterogeneous model shows highest value in comparison to the SAM model. Copyright © 2015 for the individual papers by the papers' authors.

关键词： Finite difference time domain method

来源：评论

学校读者我要写书评

暂无评论

A Family Of Single-Phase Current Source Converters With Double Outputs

A Family Of Single-Phase Current Source Converters With Doub...

引用

Annual IEEE Applied Power Electronics Conference and Exposition

作者： Louelson A. Costa Maurício B. R. Corrêa Montiê A. Vitorino Gutemberg G. dos Santos Darlan A. Fernandes Post-Graduate Program in Electrical Engineering - PPgEE - COPELE Department of Electrical Engineering Federal University of Campina Grande (UFCG) Campina Grande - PB - Brazil Department of Electrical Engineering Federal University of Paraiba (UFPB) Joao Pessoa - PB - Brazil

ISBN: (纸本)9781467395519

This work introduces a family of Current Source Converters (CSCs) that allows to control single-phase AC converters with two outputs independently sharing the same DC-bus. It is presented four different topologies which have their own advantages and disadvantages compared to each other. The comparison criterias are the total number of switches, the number of conducting switches per switching cycle, quadrant operations and DC-bus current. One of the topologies needs to always have four conducting switches with full-quadrant operation (named Fq4c), while another topology (Lq2c) needs only two, however with limited-quadrant operation. The last two presented topologies have three conducting switches in a switching period, one with full-quadrant operation (Fq3c) and another with limited-quadrant operation (Lq3c). Also it is presented the Scalar Pulse Width Modulations (SPWMs) to control each converter with switching optimization. Details of the topologies, operation and modulation logic are presented. Simulations and experimental results are provided to validate the theoretical approach.

关键词： SPWMs Family Single-Phase Current Source Converters Double Outputs

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24页 << < 6 7 8 9 10 11 12 13 14 15 > >>

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：