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

2,249 篇 会议
937 篇 期刊文献
1 册 图书

馆藏范围

3,187 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

2,043 篇 工学
- 1,341 篇 电气工程
- 635 篇 电子科学与技术（可...
- 420 篇 动力工程及工程热...
- 292 篇 计算机科学与技术...
- 289 篇 控制科学与工程
- 241 篇 软件工程
- 225 篇 化学工程与技术
- 175 篇 材料科学与工程（可...
- 169 篇 核科学与技术
- 155 篇 机械工程
- 115 篇 信息与通信工程
- 114 篇 力学（可授工学、理...
- 91 篇 冶金工程
- 89 篇 仪器科学与技术
- 73 篇 交通运输工程
- 59 篇 安全科学与工程
- 58 篇 光学工程
- 47 篇 土木工程
- 44 篇 环境科学与工程（可...
- 27 篇 石油与天然气工程
1,178 篇 理学
- 734 篇 物理学
- 413 篇 数学
- 184 篇 化学
- 105 篇 系统科学
- 77 篇 统计学（可授理学、...
- 36 篇 生物学
- 34 篇 大气科学
165 篇 管理学
- 152 篇 管理科学与工程(可...
- 57 篇 工商管理
39 篇 经济学
- 39 篇 应用经济学
27 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
60 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

1,000 篇 state key labora...
437 篇 state key labora...
165 篇 huazhong univers...
100 篇 huazhong univers...
79 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...
27 篇 china-eu institu...
27 篇 institute of ele...
26 篇 university of ch...
25 篇 state key labora...
24 篇 the state key la...
23 篇 wuhan national h...
23 篇 state key labora...

作者

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

语言

2,973 篇 英文
107 篇 中文
103 篇 其他
1 篇 法文

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

共 3187 条记录，以下是581-590 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：

The Effect of Damper on the Dynamic Performance of Energy Storage Synchronous Condenser for Active Power

The Effect of Damper on the Dynamic Performance of Energy St...

引用

International Conference on Electrical Machines and Systems (ICEMS)

作者： Xiaozhe Li Patrick J. Palanas Xi Chen Kexun Yu Xianfei Xie State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and Technology Wuhan China

With the large-scale access of new energy units and the rapid development of power electronics in the power system, the problems of low inertia and limited voltage support capacity faced by the power system are becoming more and more serious. The renewed focus on synchronous condenser has improved the voltage support capacity of the grid, but the low inertia problem is still serious due to the fixed rotor speed and limited inertia. There is an urgent need for a device that meets both voltage and frequency support. Energy Storage Synchronous Condenser (ESSC) is considered as a solution. However, for the problem of command delay, the ESSC with damper enables frequency adjustment automatically and is a better solution. In this paper, the effects of different damping parameters on the dynamic performance of the ESSC for active power are analyzed theoretically and simulatively, respectively. The results show that the ESSC with damper has ideal dynamic performance if proper damping parameters are used.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Sensorless Control of Switched Reluctance Motor Based on Sliding Mode Observer Using Nonlinear Flux Linkage Model

Sensorless Control of Switched Reluctance Motor Based on Sli...

引用

International Conference on Electrical Machines and Systems (ICEMS)

作者： Fanyan Zeng Shuanghong Wang Zixin Li State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and Technology Wuhan China

This paper proposes an improved position sensorless control method for switched reluctance motor (SRM) based on a sliding mode observer (SMO) using nonlinear polynomial flux linkage model. Firstly, in order to balance the accuracy and complexity of SMO, a nonlinear polynomial flux linkage model with variable coefficients is introduced. Then, a modified SMO utilizing the switching function is designed to estimate rotor position and speed. Finally, comparison simulation results are presented to verify the accuracy and robustness of the proposed sensorless method.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Comparison between Surface-mounted and Interior Permanent Magnet Synchronous Machines for Low Voltage Regulation Applications 26

Comparison between Surface-mounted and Interior Permanent Ma...

引用

26th International Conference on Electrical Machines and Systems, ICEMS 2023

作者： Xiao, Yu Xiao, Yang Ma, Yiming Wang, Ruichi Wang, Jin Zhou, Libing Huazhong University of Science and Technology State Key Laboratory of Advanced Electromagnetic Engineering and Technology School of Electrical and Electronic Engineering Wuhan China Csg Pgc Energy Storage Research Institute Guangzhou China Loughborough University The Wolfson School of Mechanical Electrical and Manufacturing Engineering Loughborough United Kingdom

ISBN: (纸本)9798350317589

In this paper, the surface-mounted permanent magnet (SPM) and interior permanent magnet (IPM) machines are designed and compared for low voltage regulation applications. The principles of low voltage regulation designs in SPM and IPM machines are explained. Then, a SPM machine using halbach-array PMs and an IPM machine with U+V rotor topology are designed and optimized using the same stator and air-gap length to achieve similar rated voltage and power and voltage regulation rate. The performance between optimized SPM and IPM machines are analyzed and compared by using finite element (FE) analysis. It is found that the SPM machine can achieve higher torque density with smaller PM usage, while the IPM design can significantly improve efficiency by reducing PM loss and can ease manufacturing complexity and cost in particular for halbach-array PMs. © 2023 IEEE.

关键词： Permanent magnets

来源：评论

学校读者我要写书评

暂无评论

A Denoising Scheme for Core Earth Current of Power Transformers

A Denoising Scheme for Core Earth Current of Power Transform...

引用

Electrical engineering and Control Science (IC2ECS), International Conference on

作者： Zhe Wu Zhaohui Li State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and Technology Wuhan China

The core earth current (CEC) is composed of a variety of components, some of which can reflect the health status of power transformers, such as the power frequency and its harmonic components can reflect power transformer core grounding state and core saturation degree, and some pulse components can reflect partial discharge in power transformers. Some high-frequency components can reflect the external shock (very fast transient overvoltage, lighting, etc.) suffered by power transformers. There are also some noise components introduced by ambient environment and measurement system. The existing CEC monitoring devices focus on part of the components, such as the power frequency and its harmonic components or partial discharge pulse component. Both devices are difficult to catch all anomalies in CEC. A current transformer (10Hz-200kHz) is used to sense CEC continuously to catch all abnormal waveforms in CEC. In order to extract the pulse components in CEC, a denoising scheme based on mathematical morphological (MM) filter and wavelet shrinkage is devoted. MM filter can suppress the low frequency component while maintaining the integrity of pulse components. For the purpose of filtering out the white noise in the signal and preserve the complete pulse waveform as much as possible, a new wavelet selection method that the optimum wavelet at each level is selected as the one maximizing the energy ratio of detailed coefficients beside and inside the range formed by the threshold is devoted. Simulated data and field data are used to compare several different wavelet selection methods, and the experimental results show that the pulse distortion extracted by this method is smaller than other methods.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Magnetic Field Effects on Water Electrolysis Performance on a Microfluidic Platform

Magnetic Field Effects on Water Electrolysis Performance on ...

引用

Sustainable Power and Energy Conference (iSPEC)

作者： Hao Li Ang Lu Tianshu Dong Danji Huang Chaolong Song Jinyu Wen Jiakun Fang Yuan Pan State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and Technology Wuhan China

With the rapid development of global low-carbon energy, water electrolysis for hydrogen production attracts significant attention as a crucial energy conversion method. For industrial electrolysis setups, the large-scale application is limited by the issue of low efficiency. To address this issue, one promising approach is to regulate the electrolysis process by imposing an external magnetic field. However, current relevant studies usually focus on static electrolysis systems within beaker-like containers, ignoring the narrow flow channel structure and the circulating flow of electrolyte in industrial electrolyzers. Therefore, an electrolyzer using a microfluidic platform as a phantom is established. Based on the platform, this paper investigates the effects of magnetic field under different magnetic flux densities, electrolysis voltages and electrolyte flow rates. The results indicate that the magnetic field contributes to an enhancement in current density and the increase in current density shows a trend of first increasing and then decreasing with the increase of voltage or flow rate within a certain range. Moreover, The improvement increases with the increment in magnetic flux density.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Modified APC Strategy for Doubly Salient Electro-Magnetic Generator With Controlled Rectifier Considering Dramatic Load Changes

Modified APC Strategy for Doubly Salient Electro-Magnetic Ge...

引用

IEEE International Conference on Power and Power and Renewable Energy (ICPRE)

作者： Zhenyu Lei Shuanghong Wang Zixin Li State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and Technology Wuhan China

The output voltage of the traditional diode-rectified doubly salient electro-magnetic generator (DSEG) system will change significantly when the load current changes rapidly. Besides, it’s difficult to regulate the output voltage by adjusting the field current because of the large time constant. In order to solve the problem, a modified angular position control (APC) strategy based on the controllable rectifier DSEG system is proposed. Using the back propagation neural network (BPNN) to predict proper switching angles according to the speed and field current, the improved APC strategy is helpful to slow down the charge and discharge process of the capacitor and greatly reduced the output voltage fluctuation. Finally, the effectiveness of the proposed strategy is proved by simulations on a 6/4 pole DSEG with controlled rectifier.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Online Multiparameter Estimation with Position Error Correction for Unified Synchronous Machine Sensorless Drives

Online Multiparameter Estimation with Position Error Correct...

引用

IEEE Energy Conversion Congress and Exposition, ECCE

作者： Zirui Liu Wubin Kong Xinggang Fan Fei Wang Ronghai Qu State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and Technology Wuhan China

Parameters’ accuracies are essential for model-based sensorless control in synchronous machine drives. In this paper, a multiparameter adaptive observer and a position error optimizer are presented to obtain real-time parameter information in the absence of rotor position data for unified synchronous machine (SM). The adaptive observer is based on the misaligned dq-axes’ small-signal impedance model where dq-axes EMF coupling terms are well considered. All parameters can achieve high accuracy under entire operation region. In the case of isotropic SMs, the estimated parameters can be directly utilized in the model-based observer to acquire high precision position observation. And, for anisotropic SMs, an optimizer is introduced to correct parameter inaccuracies caused by position error. The effectiveness of the proposed adaptive observer and optimizer is evaluated through a combination of experiments and simulations, providing comprehensive validation of their performance. 1

关键词：

来源：评论

学校读者我要写书评

暂无评论

A DC-Link Current Estimation Method for VSI-Fed IPMSM Drive System Considering Dead-Time Effect

A DC-Link Current Estimation Method for VSI-Fed IPMSM Drive ...

引用

International Conference on Electrical Machines and Systems (ICEMS)

作者： Bowen Yuan Shuanghong Wang State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and Technology Wuhan China

The dc-link current is an important parameter in voltage source inverter (VSI)-fed Interior Permanent Magnet Synchronous Motor (IPMSM) system. On the one hand, the average value of dc-link current reflects the power level of dc-side and plays a crucial part in system protection, power management and efficiency optimization. On the other hand, using estimation method instead of dc-link current sensor to obtain the value of dc-link current can reduce system cost and increase system reliability. However, in practical application, some non-ideal factors such as digital delay, dead time effect and current sampling error caused by low carrier ratio may affect the accuracy of estimation. Therefore, an accurate dc-link current estimation method for VSI-fed IPMSM drive system with space-vector pulse width modulation (SVPWM) is proposed in this paper. Both simulation and experimental results of proposed estimation method are presented to verify the feasibility and accuracy of the proposed estimation method.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Study on Different Calculation Methods of Direct Carbon Emissions from Oil-Immersed Equipment on Substations 1

引用

18th Annual Conference of China Electrotechnical Society, ACCES 2023

作者： He, Jiahui Zou, Jingyi Zhang, Dandan Hou, Guobin Hu, Ke Wuhan430077 China School of Electrical and Electronic Engineering Huazhong University of Science and Technology Wuhan430074 China Ministry of Education Wuhan430074 China State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and Technology Wuhan430074 China China-EU Institute for Clean and Renewable Energy Huazhong University of Science and Technology Wuhan430074 China

ISBN: (数字)9789819710683

ISBN: (纸本)9789819710676

Clarifying the level of direct carbon emissions during the operation of oil-immersed equipment in substations is crucial, yet there is limited research on accurate calculation methods for these emissions. This paper introduces various calculation approaches for direct carbon emissions from oil-immersed equipment in substations, including methods based on oil chromatography online monitoring, oil chromatography offline survey, and literature data. Additionally, a field measurement and calculation method for direct carbon emissions from oil-immersed equipment is proposed and compared with other methods. The results demonstrate that the direct carbon emission level of 0.245 gCO2eq/L/year for oil-immersed equipment, obtained from calculations based on online monitoring of oil chromatography, aligns better with literature findings. In contrast, results from calculations based on offline survey of oil chromatography tend to be lower. A direct carbon emission level of 0.074 gCO2eq/L/year for oil-immersed equipment is derived from the field measurement method, with the discrepancy arising from most of the gas produced by the equipment being dissolved in the oil. It is evident that the level of direct carbon emissions from oil-immersed equipment is relatively low compared to carbon emissions from SF6 leakage and other industrial sectors. © Beijing Paike Culture Commu. Co., Ltd. 2024.

关键词： Greenhouse gases

来源：评论

学校读者我要写书评

暂无评论

Research on A Controllable Reactor Realized by Multi-Winding Transformer

Research on A Controllable Reactor Realized by Multi-Winding...

引用

Power System and Green Energy Conference (PSGEC)

作者： Weiyu Wang Xiong Xie Hao Yin Dayi Li Jing Li State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and Technology Wuhan China

Controllable reactors (CR) are general FACTS (Flexible AC Transmission System) apparatuses, which have played a crucial role in improving the power flow distribution of the system, adjusting the reactive power balance of the power grid, stabilizing the voltage, and improving the stability of the system. This paper summarizes the characteristics of various types of controllable reactors, classifies reactors with different structures, and compares different controllable reactors from the perspectives of reactance change, response speed, harmonic problem, and control accuracy. A transformer-type controllable reactor based on flux compensation is proposed, the design scheme of secondary side multi-winding is adopted to realize the large-capacity reactor, the unity of single control winding and multi-control winding in the application is expanded, and the general principle of controllable reactor is obtained through the control of the “linear two-port network” port, and the design principle of such reactor is summarized.

关键词：

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319页 << < 55 56 57 58 59 60 61 62 63 64 > >>

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：