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

382 篇 会议
126 篇 期刊文献

馆藏范围

508 篇 电子文献
0 种 纸本馆藏

日期分布

学科分类号

347 篇 工学
- 239 篇 电气工程
- 127 篇 动力工程及工程热...
- 79 篇 电子科学与技术（可...
- 66 篇 计算机科学与技术...
- 49 篇 控制科学与工程
- 49 篇 软件工程
- 46 篇 化学工程与技术
- 42 篇 机械工程
- 37 篇 材料科学与工程（可...
- 17 篇 信息与通信工程
- 14 篇 安全科学与工程
- 12 篇 力学（可授工学、理...
- 10 篇 航空宇航科学与技...
- 8 篇 冶金工程
- 7 篇 建筑学
- 7 篇 土木工程
- 7 篇 交通运输工程
- 7 篇 环境科学与工程（可...
- 6 篇 生物工程
176 篇 理学
- 91 篇 数学
- 67 篇 物理学
- 44 篇 化学
- 25 篇 系统科学
- 19 篇 统计学（可授理学、...
- 6 篇 大气科学
- 6 篇 生物学
43 篇 管理学
- 37 篇 管理科学与工程(可...
- 23 篇 工商管理
- 6 篇 图书情报与档案管...
21 篇 经济学
- 21 篇 应用经济学
2 篇 法学
2 篇 农学
1 篇 医学
1 篇 军事学

主题

18 篇 voltage control
16 篇 switches
16 篇 power system sim...
15 篇 energy storage
13 篇 wind turbines
12 篇 inverters
11 篇 rotors
11 篇 analytical model...
11 篇 capacitors
10 篇 pulse width modu...
10 篇 reactive power
10 篇 mathematical mod...
10 篇 harmonic analysi...
10 篇 induction motors
9 篇 rectifiers
9 篇 voltage
9 篇 photovoltaic sys...
8 篇 space charge
8 篇 stator windings
8 篇 control systems

机构

67 篇 state key labora...
42 篇 state key labora...
37 篇 state key labora...
32 篇 state key labora...
30 篇 state key labora...
27 篇 state key labora...
18 篇 department of el...
15 篇 state key labora...
15 篇 department of el...
15 篇 state key labora...
10 篇 department of el...
9 篇 tsinghua-sichuan...
9 篇 department of el...
8 篇 tsinghua univers...
7 篇 china electric p...
7 篇 college of elect...
7 篇 school of electr...
6 篇 state key lab of...
6 篇 state key lab of...
6 篇 state key labora...

作者

44 篇 zhengming zhao
30 篇 liqiang yuan
26 篇 lin jin
25 篇 song yonghua
23 篇 zhao zhengming
21 篇 lin cheng
19 篇 cheng lin
18 篇 yuan liqiang
18 篇 jiang dongxiang
17 篇 zhou yuanxiang
16 篇 liu feng
16 篇 yuanxiang zhou
14 篇 dongxiang jiang
13 篇 ting lu
11 篇 xinzhou dong
11 篇 wang bin
11 篇 qiu yiwei
10 篇 bin wang
10 篇 qi ning
10 篇 li jiarong

语言

478 篇 英文
26 篇 中文
4 篇 其他

检索条件"机构=Laboratory of Control and Simulation of Power System and Generation Equipment"

共 508 条记录，以下是471-480 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：

Investigation and analysis of the influence of magnetic wedges on high voltage motors performance

Investigation and analysis of the influence of magnetic wedg...

引用

2008 IEEE Vehicle power and Propulsion Conference, VPPC 2008

作者： Wang, Shuping Zhao, Zhengming Yuan, Liqiang Wang, Buyao Department of Electrical Engineering State Key Laboratory of Control and Simulation of Power System and Generation Equipment Tsinghua University Beijing China Anhui Electric Power Research Institute Corporation Company Ltd. Department of XiangTan Electric Machine Xiangtan China

ISBN: (纸本)9781424418497

To weaken the pulsation of the harmonic magnetic field and improve the wave of the air-gap magnetic field in high voltage motors because of their open slots, magnetic slot wedge should be imbedded into the slot opening. In the paper, through analyzing the air-gap magnetic field distribution of large-scale motors affected by embedding magnetic slot wedges in open slots, the influence of magnetic slot wedge on the motor parameters and performance is discussed in theory. The finite element analysis (FEA) and the experiment results were given, which not only proves the validity of the analysis in the paper, also through the simulation results the proper parameters of magnetic slot wedges for best performance of motors were concluded, which provides a theoretical reference for the manufacturers when choosing or processing magnetic slot wedges. © 2008 IEEE.

关键词： Finite element method

来源：评论

学校读者我要写书评

暂无评论

Intelligent controller for LEDs lighting systems supplied by batteries

Intelligent controller for LEDs lighting systems supplied by...

引用

IEEE Conference on Vehicle power and Propulsion (VPPC)

作者： Bo Feng Zhengming Zhao Yingchao Zhang Dejia Zhou Liqiang Yuan State Key Laboratory of Control and Simulation of Power System and Generation Equipment Tsinghua University Beijing China

LED lighting system supplied by batteries is one of effective solutions to vehicle and photovoltaic lighting systems. In order to improve lighting performance and prolong the life of LEDs and batteries, this paper proposes a novel intelligent controller for LED lighting systems. Stage constant current (SCC) control strategy is proposed, which determines the optimal working current of LEDs (I ref ) according to their ambient temperature and the capacity of batteries. For implementing SCC control strategy, a new control algorithm of double current loops and feedforward (DCLF) control is proposed based on Boost converter with constant current source. Both output current and inductor current are used as feedback control variables and input voltage is employed as feedforward compensation in the proposed algorithm. simulations have been conducted using PSIM software; and based on that, a 50 W photovoltaic LED lighting system has been developed to implement a serial of comparative experiments. The results show the advantages and validity of DCLF algorithm, such as excellent dynamic performance and good robustness.

关键词： Lighting control control systems Light emitting diodes LED lamps Photovoltaic systems Solar power generation Battery powered vehicles Optimal control Temperature control Inductors

来源：评论

学校读者我要写书评

暂无评论

A novel Modbus RTU-based communication system for adjustable speed drives

A novel Modbus RTU-based communication system for adjustable...

引用

IEEE Conference on Vehicle power and Propulsion (VPPC)

作者： Hu Sideng Zhao Zhengming Zhang Yingchao Wang Shuping State Key Laboratory of Control and Simulation of Power System and Generation Equipment Tsinghua University Beijing China

ISBN: (纸本)9781424418480

The communication protocol is important for applying adjustable speed drive (ASD) systems to an industry network. This paper proposes a novel scheme of communication system for the ASD system based on Modbus protocol. The most remarkable advantage of the approach lies in the tradeoff between performance and economic cost for a power converter system. The overall system is built on master-slave structure and easy for interacting with other networks. An additional study on the cyclic redundancy check (CRC) in Modbus RTU is introduced to obtain the optimization design in the actual application and the optimization method in software design is also presented. The performance of the communication system obtained from experiment conducted on the 15 kW ASD system validates the effectiveness of the proposed design method.

关键词： Variable speed drives Protocols Cyclic redundancy check Communication industry power system economics power generation economics Costs Master-slave Design optimization Application software

来源：评论

学校读者我要写书评

暂无评论

Investigation and Analysis of the Influence of Magnetic Wedges on High Voltage Motors Performance

Investigation and Analysis of the Influence of Magnetic Wedg...

引用

Vehicle power and Propulsion Conference

作者： Shuping Wang Zhengming Zhao Liqiang Yuan Buyao Wang Department of Electrical Engineering State Key Laboratory of Control and Simulation of Power System and Generation Equipment Tsinghua University Beijing China Anhui Electric Power Research Institute Department of Electrical Engineering State Key Laboratory of Control and Simulation of Power System and Generation Equipment Tsinghua University Beijing China Department of Electrical Engineering State Key Laboratory of Control and Simulation of Power System and Generation EquipmentTsinghua University Beijing China Corporation Company Ltd. Of XiangTan Electric Machine XiangTan China

ISBN: (纸本)9781424418480;9781424418497

关键词： Air-gap Magnetic Field Magnetic Slot Wedges Motor Performance

来源：评论

学校读者我要写书评

暂无评论

Design and control of a Three-Phase Grid-Connected Photovoltaic system with Developed Maximum power Point Tracking

Design and Control of a Three-Phase Grid-Connected Photovolt...

引用

23rd Annual IEEE Applied power Electronics Conference and Exposition (APEC 2008), vol.2

作者： Zhou Dejia Zhao Zhengming Mohamed Eltawil Yuan Liqiang The State Key Laboratory of Control and Simulation of Power Systems and Generation Equipment Department of Electrical Engineering Tsinghua University Beijing China

In this paper an optimum design and control of three-phase grid-connected PV system has been proposed and analyzed. Also, a developed maximum power point tracking (MPPT) controller that uses the PV array differential power to voltage (dP/dV) as an index to provide the reference voltage of maximum power point (MPP) quickly and accurately is presented. The control scheme of a three phase current-controlled space vector pulse-width modulation (SVPWM) inverter in rotating synchronous coordinate d-q with the proposed MPPT algorithm and feed-forward compensation is discussed. The PV grid-connected system controller employs multi-loop control with the filter inductor current of the inverter in the inner loop to achieve fast dynamic response and the outer loop to control dc bus voltage for MPPT. The design method provided in the paper for the controller parameters and filter proved to be very practical and effective. Both the power quality into the grid and power factor correction comply with standards IEEE 929-2000. Good agreement is obtained between simulation and experimental results which illustrated the high performance of the proposed approach.

关键词： Digital signal processor Grid-connected PWM inverter MPPT Photovoltaic (PV) system PI compensators Unity power factor

来源：评论

学校读者我要写书评

暂无评论

Study of Non-Conventional Instrument Transformer and IEC61850 impact on current differential protection

Study of Non-Conventional Instrument Transformer and IEC6185...

引用

IEEE/PES Transmission and Distribution Conference and Exposition: Latin America

作者： K. L. S. Shenxing X. Dong Z. Bo State Key Lab of Control and Simulation of Power System and Generation Equipments Department of Electrical Engineering Tsinghua University Beijing 100084 China Tsinghua University Beijing Beijing CN State Key Laboratory of Control and Simulation of Power System and Generation Equipments Department of Electrical Engineering Tsinghua University Beijing China AREVA T&D Automation슠and Information Systems Stafford UK

Non conventional instrument transformer (NCIT) and IEC 61850 are crucial technologies in digital substations. But they bring some new uncertainties to protection IEDs, especially the time synchronization issue in current differential protection. The paper analyzes the time delay of transferring sampled values from NCIT to current differential relay in NCIT and IEC61850 based digital substation, then finds out the delay-non-deterministic problem, at last presents a novel current differential protection scheme by using phase-locked loops (PLL ) technology.

关键词： Substations Delay effects Ethernet networks Phase locked loops IEC Synchronization Data communication

来源：评论

学校读者我要写书评

暂无评论

Current differential protection based on Non-Conventional Instrument Transformer and IEC61850

Current differential protection based on Non-Conventional In...

引用

International Universities power Engineering Conference (UPEC)

作者： Kun Liu Xinzhou Dong Zhiqian Bo State Key Laboratory of Control and Simulation of Power System and Generation Equipments Department of Electrical Engineering Tsinghua University Beijing China AREVA T&D Automation슠and Information Systems Staffordshire UK

Non Conventional Instrument Transformer (NCIT) and IEC 61850 are crucial technologies in digital substations. But they bring some new uncertainties to protection IEDs, especially the time synchronization issue in current differential protection. The paper analyzes the time delay of transferring sampled values from NCIT to current differential relay in NCIT and IEC61850 based digital substation, then finds out the delay-non-deterministic problem, at last presents a novel current differential protection scheme by using Phase-Locked Loops (PLL ) technology.

关键词： Substations Delay effects Synchronization IEC Phase locked loops Data communication Ethernet networks

来源：评论

学校读者我要写书评

暂无评论

PSIM and SIMULINK Co-simulation for three-level adjustable speed drive systems

PSIM and SIMULINK Co-simulation for three-level adjustable s...

引用

IPEMC 2006: CES/IEEE 5th International power Electronics and Motion control Conference

作者： Yongchang, Zhang Zhengming, Zhao Baihua Liqiang, Yuan Haitao, Zhang State Key Laboratory of Control and Simulation of Power System and Generation Equipment Department of Electrical Engineering Tsinghua University Beijing China

ISBN: (纸本)1424404487

Applying co-simulation technology is a very important trend in power electronics simulation, which can make full use of the merits of different software to improve the efficiency of building up a system. In this paper, a simulation platform for three-level adjustable speed drive (ASD) based on co-simulation of PSIM and SIMULINK is presented, which includes the interface between PSIM and SIMULINK, main circuit in PSIM, space vector pulse width modulation (SVPWM), dead time and minimum pulse width, view of output voltage and its Fourier analysis in SIMULINK Based on this platform, the cause of large current when motor starts is studied. simulation and experimental results show that the minimum pulse width contributes a lot for the large starting current of the ASD. In conclusion, applying the simulation platform introduced in this paper, the dynamic behavior of the three-level ASD can be easily studied, which reduces the cost and improves efficiency at the same time compared to hardware investments, and may help to realize the optimal design of the ASD in practice. © 2006 IEEE.

关键词： Efficiency

来源：评论

学校读者我要写书评

暂无评论

Dynamic Equivalent Circuit Design In Three-level High Voltage Inverters Based On Functional Model of IGCT

Dynamic Equivalent Circuit Design In Three-level High Voltag...

引用

Twenty-Second Annual IEEE Applied power Electronics Conference and Exposition (APEC 07), vol.2

作者： Hua BAI Zhengming Zhao Department of Electrical Engineering State Key Laboratory of Control and Simulation of Power System and Generation Equipment Tsinghua University Beijing China

The integrated gate commutated thyristors (IGCTs) are commonly used for construction of high voltage three-level PWM controlled voltage source converter/inverters. When the output voltage is greater than the maximum rated voltage, IGCTs are connected in series. To ensure the safe and reliable operation of the converter/inverters, special measures are required to equalize the voltages across the IGCTs connected in series. An effective method for balancing voltages is to use resistors for static voltage balancing and RC snubber circuits for dynamic voltage balancing. However, most of the previous research work reported in the literature focused on the dynamic circuit design for converters of the BUCK topology. Trade off is made only between the performance of dynamic voltage balancing and the turn-on loss without any consideration of di/dt endurance and any procedural steps, which makes the design procedure not suitable for converters of the three-level topology. Based on a functional model of IGCTs, this paper presents a procedure for optimum design of the dynamic voltage balancing circuit for a 6 kV/1250 kW inverter. The specific transient processes in the three-level topology with dynamic snubber circuit are simulated and the mechanisms are analyzed, which is absent in the previous work.

关键词： IGCT Dynamic equivalent circuit Three-level inverter Dead band

来源：评论

学校读者我要写书评

暂无评论

Vector control for a twelve-phase synchronous motor

Vector control for a twelve-phase synchronous motor

引用

International Conference on Electrical Machines and systems (ICEMS)

作者： Dejia Zhou Zhengming Zhao Shanming Wang Jianyun Chai State Key Laboratory of Control and Simulation of Power Systems and Generation Equipment Department of Electrical Engineering and Applied Electronic Technology Tsinghua University Beijing 100084 China State Key Laboratory of Control and Simulation of Power Systems and Generation Equipment Tsinghua University Beijing China

A twelve-phase synchronous motor with four Y-connected 3-phase symmetrical windings displaced in turn by 15deg is modeled by using flux linkages as state variables, and an optimized method for the vector control is proposed with the simulation results. The observing model for magnetizing flux linkage at the direct-axis is derived whereby a vector control scheme of a twelve-phase synchronous motor, and related simulation is constructed in this paper. Using switch blocks to model the functions of twelve-phase voltage-fed inverter is convenient for simulating the driving system. The results of the simulations show that the torque and magnetizing flux linkage can be controlled separately, and the dynamic characteristics of the motor are satisfied with the operating requirements.

关键词： Machine vector control Synchronous motors Couplings Magnetic separation Magnetic flux Switches Optimization methods Voltage Inverters Torque control

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51页 << < 42 43 44 45 46 47 48 49 50 51 > >>

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：