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

2,253 篇 会议
947 篇 期刊文献

馆藏范围

3,200 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

2,047 篇 工学
- 1,343 篇 电气工程
- 638 篇 电子科学与技术（可...
- 423 篇 动力工程及工程热...
- 293 篇 计算机科学与技术...
- 290 篇 控制科学与工程
- 239 篇 软件工程
- 225 篇 化学工程与技术
- 177 篇 材料科学与工程（可...
- 173 篇 核科学与技术
- 157 篇 机械工程
- 117 篇 信息与通信工程
- 116 篇 力学（可授工学、理...
- 93 篇 仪器科学与技术
- 88 篇 冶金工程
- 72 篇 交通运输工程
- 60 篇 光学工程
- 59 篇 安全科学与工程
- 46 篇 土木工程
- 44 篇 环境科学与工程（可...
- 29 篇 石油与天然气工程
1,166 篇 理学
- 735 篇 物理学
- 406 篇 数学
- 180 篇 化学
- 103 篇 系统科学
- 78 篇 统计学（可授理学、...
- 35 篇 生物学
- 34 篇 大气科学
164 篇 管理学
- 151 篇 管理科学与工程(可...
- 56 篇 工商管理
39 篇 经济学
- 39 篇 应用经济学
26 篇 医学
16 篇 法学
7 篇 农学
5 篇 教育学
2 篇 军事学
1 篇 文学

主题

103 篇 voltage control
102 篇 torque
99 篇 rotors
86 篇 switches
82 篇 mathematical mod...
78 篇 power system sta...
74 篇 windings
63 篇 harmonic analysi...
63 篇 capacitors
61 篇 simulation
56 篇 optimization
54 篇 topology
53 篇 stators
53 篇 inductance
51 篇 electromagnetics
50 篇 stability analys...
50 篇 inverters
44 篇 permanent magnet...
41 篇 reactive power
41 篇 analytical model...

机构

1,006 篇 state key labora...
437 篇 state key labora...
164 篇 huazhong univers...
100 篇 huazhong univers...
81 篇 international jo...
70 篇 state key labora...
67 篇 china electric p...
51 篇 state key labora...
47 篇 state key labora...
44 篇 school of electr...
39 篇 school of electr...
35 篇 international jo...
30 篇 department of en...
29 篇 china-eu institu...
27 篇 institute of ele...
26 篇 university of ch...
25 篇 state key labora...
25 篇 the state key la...
24 篇 wuhan national h...
23 篇 state key labora...

作者

118 篇 ronghai qu
71 篇 jinyu wen
69 篇 wen jinyu
61 篇 dawei li
56 篇 jiabing hu
51 篇 qu ronghai
47 篇 yin xianggen
44 篇 xianggen yin
43 篇 wei xu
41 篇 dong jiang
40 篇 yong kang
40 篇 jian li
36 篇 zhu ping
36 篇 shijie cheng
35 篇 wei yao
32 篇 xiangning lin
32 篇 jia xie
32 篇 kai yang
32 篇 hu jiabing
31 篇 yonghua ding

语言

2,756 篇 英文
332 篇 其他
112 篇 中文
1 篇 法文

检索条件"机构=StateKey Laboratory of Advanced Electromagnetic Engineering and Technology"

共 3200 条记录，以下是1521-1530 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：

Multifrequency Vibration Suppression of Magnetic Bearing Systems Applied Variable Step-size Automatic Learning Control

Multifrequency Vibration Suppression of Magnetic Bearing Sys...

引用

IEEE Energy Conversion Congress and Exposition

作者： Hongbo Sun Dong Jiang Jianfu Ding Jichang Yang State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and Technology Wuhan China

ISBN: (数字)9781728158266

ISBN: (纸本)9781728158273

Active Magnetic Bearing (AMB) has been widely applied in occasions acquire high-speed rotating, high-precision machining, and so on. The AMB can provide active control force to offset centrifugal force and other disturbance to suppress vibration while rotating. This paper proposed a strategy to compensate vibration in AMB system based on Variable Step-size Automatic Learning Control (VALC). Firstly, a two degrees of freedom model of radial AMB is established. Phase error between of centrifugal force and synchronous vibration is analyzed. Then, principle and process of VALC is introduced. A generalized notch filter is applied to obtain synchronous and harmonic vibration. Next, simulations are carried out based on AMB control system applied VALC. The results of simulations show the feasibility of the compensating strategy. Experiments to reduce synchronous and harmonic vibration based on VALC are carried out on a test rig. Spectrums of vibration signals show that vibration is reduced by about 90%, which demonstrates the effectiveness of proposed strategy for vibration compensation.

关键词： Vibrations Harmonic analysis Power harmonic filters Force Magnetic levitation Control systems Steady-state

来源：评论

学校读者我要写书评

暂无评论

Design of a Combined-Function Corrector for HUST FEL-THz

Design of a Combined-Function Corrector for HUST FEL-THz

引用

Electrical engineering (CIYCEE), IEEE China International Youth Conference on

作者： Kunyue Jiang Kuanjun Fan State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and Technology Wuhan China

ISBN: (数字)9781728196596

ISBN: (纸本)9781728196602

Free electron laser Terahertz source (FEL-THz) has significant advantages, such as wide and continuously adjustable spectrums. A compact terahertz source is desired to reduce the cost and space but still provide high-quality terahertz beams. However, the space constraints requires all the magnets should be downscaled as well. In this paper, a combined-function corrector is designed, capable of providing vertical and horizontal correction at the same time. Poisson and Opera-3D have been used to design and optimize the magnet. The vertical correction is mainly performed by shimming and trimming the magnetic pole head, and the horizontal correction is mainly performed by adjusting the current coil. As a result, the good field range of the vertical field and the horizontal field reach the expected value, and the relative error of the integrated field meets the requirements of beam correction.

关键词： Solid modeling Three-dimensional displays Orbits Magnetic fields Laser beams Optimization Saturation magnetization

来源：评论

学校读者我要写书评

暂无评论

Vibration Suppression of Magnetic Bearing System based on Active Disturbance Rejection Control with Generalized Integrator Extend State Observer

Vibration Suppression of Magnetic Bearing System based on Ac...

引用

Electrical engineering (CIYCEE), IEEE China International Youth Conference on

作者： Hongbo Sun Dong Jiang State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and Technology Wuhan China

ISBN: (数字)9781728196596

ISBN: (纸本)9781728196602

Vibration is a common problem in rotating machine. Active Magnetic Bearing (AMB) produces controllable magnetic force to levitate rotor and the control algorithm contributes to reduce vibration. This paper proposes a vibration suppression strategy based on active disturbance rejection control (ADRC). ADRC applies extend state observer (ESO) to estimate generalized disturbance. However, in AMB system, disturbance is mainly caused by centrifugal force, whose frequency is rotating frequency. For sinusoidal disturbance, ESO cannot estimate it absolutely. To estimate sinusoidal disturbance in AMB system, generalized integrator ESO (GI-ESO) is applied in ADRC. The resonant frequency of GI is set as rotating frequency. Transfer function of error of GI-ESO is analyzed and notch feature at resonant frequency is displayed. The transfer function of third-order of ADRC applied GI-ESO is obtained. Stability of proposed vibration suppressing strategy is analyzed by root locus. Results of simulations show better effect for sinusoidal disturbance estimation of GI-ESO. After applying ADRC based on GI-ESO, vibration of displacement in AMB system is reduced effectively, which shows the effectiveness of proposed vibration suppressing strategy.

关键词： Vibrations Robust control Force Resonant frequency Transfer functions Stability analysis Magnetic levitation

来源：评论

学校读者我要写书评

暂无评论

Stability analysis of VSC based on SISO equivalent in current control time scale

Stability analysis of VSC based on SISO equivalent in curren...

引用

Electrical engineering (CIYCEE), IEEE China International Youth Conference on

作者： Yaxin Peng Xiaoming Yuan State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and Technology Wuhan China

ISBN: (数字)9781728196596

ISBN: (纸本)9781728196602

Oscillations in current control (CC) timescale (higher than 50 Hz) caused by voltage source converters (VSCs) integrating into the weak grid have occurred. However, relevant studies lack enough mechanism cognitions of instability of such system. In order to guide the parameter setting of the controllers, this paper first presents a small signal model of VSC based on motion equation concept. Secondly, a SISO equivalent method which can quantitatively analyze the interaction between variables in MIMO is introduced. Thirdly, the influence of phase locked loop (PLL) bandwidth, current controller parameters in the d-axis and q-axis and filter bandwidth on the feedforward branch of terminal voltage on stability is analyzed based the SISO equivalent method, which can help engineers to study the mechanisms of the voltage amplitude/frequency stability. Finally, the simulations in time domain verify the correctness of the analyses.

关键词： Time-frequency analysis Bandwidth Power system stability Stability analysis Power conversion Mathematical model Voltage control

来源：评论

学校读者我要写书评

暂无评论

A Novel Grid-Connected Inverter Filtering Method using Series Active Power Filter based on Magnetic Flux Compensation

A Novel Grid-Connected Inverter Filtering Method using Serie...

引用

International Conference on Electrical Machines and Systems (ICEMS)

作者： Tingkang Wang Dayi Li Jie Gong Yuning Hou State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and Technology Wuhan China

ISBN: (数字)9784886864192

ISBN: (纸本)9781728189307

This paper proposed a novel grid-connected inverter filtering method using series APF based on magnetic flux compensation. The fundamental and harmonic currents across the primary side of transformer are detected, respectively, which are controlled separately. The fundamental is reversely injected into the secondary side, while the harmonics are injected in phase. Thus, the primary side shows the characteristic of almost zero impedance to fundamental and a very large impedance to harmonics which is larger than the excitation impedance of the transformer. Therefore, this method can isolate harmonics when the fundamental passes through without loss, and function as a harmonic isolator. Finally, the experiment model was established, which proved the application advantages and better performance in grid connected inverter compared with that of LCL filter.

关键词： Power harmonic filters Harmonic analysis Inverters Impedance Active filters Windings Power filters

来源：评论

学校读者我要写书评

暂无评论

Fault Location Method for Distributed Power Distribution Network Based on Hybrid Strategy Genetic Algorithm

Fault Location Method for Distributed Power Distribution Net...

引用

IEEE Asia Power and Energy engineering Conference (APEEC)

作者： Zhang Yong Wan Shanming Zhou Jianghua State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and Technology Wuhan China

ISBN: (数字)9781728167824

ISBN: (纸本)9781728167831

Since the access of the distributed power supply of distribution networks changes the structure of original networks and the direction of the power flow, so that the correctness of the relay protection action is reduced. In order to accurately locate the fault when fault occurs, a new positioning method based on hybrid strategy genetic algorithm is proposed. The entire distribution network is segmented according to the distribution of the multifunctional micro phasor measurement unit. Then the line transmission equation and the goodness function model are established, and the known network structure is fault-located by the improved genetic algorithm. The proposed method by using the global information to comprehensively consider the fault condition, avoids the misjudgment caused by the special situation. Considering the influence of the grounding resistance, the accuracy of fault location is greatly improved, and the resistance of the grounding resistor is solved for the first time. Theoretical analysis and a larger number of simulation results show that this method has high precision and stability.

关键词： hybrid strategy genetic algorithm distributed distribution network fault location Fault location Power grids Genetic Algorithm (GA) Power flow Simulation results Phasor measurement units faults

来源：评论

学校读者我要写书评

暂无评论

Multi-port Coordinated Control Strategy of SOP in Distribution Network

Multi-port Coordinated Control Strategy of SOP in Distributi...

引用

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

作者： Min Yang Xuejun Pei Yuze Li State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and Technology Wuhan China

ISBN: (数字)9781728148298

ISBN: (纸本)9781728148304

Soft open point (SOP) is a new power electronic device installed in distribution network to replace the normally open point (NOP), which can achieve normalized closed-loop operation of distribution network. This paper proposes a multi-port coordinated control strategy of SOP to achieve the power flow regulation and power quality improvement of distribution network under steady state operation. The proposed strategy can improve the power quality while balancing the active power among feeders with the SOP. Three-port back to back MMC SOP is taken as studied case. Simulation results verify the effectiveness of the strategies adopted.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Harmonic Optimization Method by SHEPWM for Contactless Power Transfer System with Seriesseries Compensation

Harmonic Optimization Method by SHEPWM for Contactless Power...

引用

IEEE Energy Conversion Congress and Exposition

作者： Jichang Yang Dong Jiang Yuanzhi Zhang Ronghai Qu State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and Technology Wuhan China

ISBN: (数字)9781728158266

ISBN: (纸本)9781728158273

Contactless power transfer (CPT) technology is developing rapidly in recent years. This paper introduces the circuit model of a typical CPT system with series-series (S/S) compensation topology. By analyzing the transfer function of a practical CPT system, with the load resistance changes, the bifurcation phenomenon might happen. In case of voltage source inverter with square wave modulation, there will be serious harmonic distortion in the primary and secondary current waveform, which might cause the drop of power factor. Using selective harmonic elimination pulse width modulation (SHEPWM) instead of square wave modulation could remedy this problem. With SHEPWM, the harmonic order will be increased, improving the waveform quality, and the requirement of filters also be decreased. Experimental results are provided to validate the harmonic problem, and show the effectiveness of the harmonic optimization method.

关键词： Harmonic analysis Resistance Reactive power Power system harmonics Load modeling Topology Transfer functions

来源：评论

学校读者我要写书评

暂无评论

Research on improving the anti disturbance ability of high frequency power supply

Research on improving the anti disturbance ability of high f...

引用

Chinese Automation Congress (CAC)

作者： Ke Sun Ling Dai State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and Technology Wuhan China

ISBN: (数字)9781728176871

ISBN: (纸本)9781728176888

As a kind of DC-DC power supply equipment, high-frequency power supply is developing towards digitization, integration and high-power. In the traditional high frequency power supply circuit topology, the inductance parameters at the bridge arm side are easily affected by the change of inductance current, and the DC bus voltage is easily affected by the load fluctuation. In this paper, a high-frequency power supply control method based on inductance current disturbance observer is proposed. The unmeasurable disturbance is estimated from the measurable information in the high-frequency power supply drive circuit, and then the disturbance momentum is compensated in the control algorithm to improve the anti-interference ability and dynamic response speed of the system. Through theoretical analysis and simulation analysis, it is verified that the proposed scheme can effectively improve the anti disturbance ability of high frequency power supply. Considering that the DC-DC power supply is generally nonlinear and intermittent, the total charging current ripple of DC-DC converter circuit working in Buck mode is large, and the DC bus voltage is vulnerable to fluctuations and shocks. This paper presents a DC-DC converter control strategy based on active disturbance rejection observer. The experimental results show that the scheme can reduce the total current ripple, suppress the DC bus voltage fluctuation, and improve the steady-state dynamic characteristics of the control system.

关键词： Power supplies Inductance Control systems Voltage control Fluctuations High frequency Heuristic algorithms

来源：评论

学校读者我要写书评

暂无评论

Analysis of impact of grounding-pole current-limiting reactor on fault detection of MMC based DC grids 8

Analysis of impact of grounding-pole current-limiting reacto...

引用

8th Renewable Power Generation Conference, RPG 2019

作者： Yang, Saizhao Xiang, Wang Wen, Jinyu State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and Technology Wuhan China

ISBN: (纸本)9781839531255

The Zhangbei ±500kV DC pilot project is the world's first modular multilevel converter based DC grid project, which integrates large scale wind power over long distance using the overhead lines. Once DC fault occurs on the overhead line, fault currents rise rapidly with a large amplitude, which requires fast trip of DCCBs to isolate faulted lines. To suppress the fault current rise rate and leave more time for fault detection, the current-limiting reactors (CLR) are implemented on both polar and grounding poles in the Zhangbei project. This paper analyses the impacts of grounding pole (G-CLR) on the DC line protection and the fault characteristics of the voltage across G-CLRs under bus faults. In addition, a DC bus protection scheme using G-CLRs is proposed. In order to verify the correctness of analysis and effectiveness of the proposed scheme, extensive simulations have been conducted under PSCAD/EMTDC. © 2019 Institution of engineering and technology. All rights reserved.

关键词： Electric grounding

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320页 << < 149 150 151 152 153 154 155 156 157 158 > >>

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：