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

5 篇 会议

馆藏范围

5 篇 电子文献
0 种 纸本馆藏

日期分布

主题

2 篇 reactive power c...
2 篇 voltage
2 篇 reactive power
2 篇 inductors
1 篇 power system ana...
1 篇 fault diagnosis
1 篇 saturation magne...
1 篇 electromagnetic ...
1 篇 magnetic cores
1 篇 information anal...
1 篇 power system mod...
1 篇 conference manag...
1 篇 power system rel...
1 篇 valves
1 篇 magnetic circuit...
1 篇 stability analys...
1 篇 software prototy...
1 篇 power generation...
1 篇 statistical anal...
1 篇 load flow

机构

2 篇 key lab. of powe...
2 篇 key lab. of powe...
1 篇 sch. of bus. man...
1 篇 key lab. of powe...
1 篇 dept. of electr....
1 篇 propaganda dept....

作者

3 篇 zhongdong yin
2 篇 ziqiang wang
1 篇 xiangning xiao
1 篇 zengping wang
1 篇 qipeng song
1 篇 zhengyu xie
1 篇 sheng-wei mei
1 篇 jinfang zhang
1 篇 qiao kun
1 篇 guang-yu he
1 篇 yue guo
1 篇 jing ma
1 篇 ying-yun sun
1 篇 yagang zhang
1 篇 lan wu

语言

5 篇 英文

检索条件"机构=Key Lab. of Power Syst. Protection & Dynamic Security Monitoring & Control of Minist. of Educ."

共 5 条记录，以下是1-10 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：

Extended power Flow Model of Bus Reactive power Margin and Its Fast Algorithm

Extended Power Flow Model of Bus Reactive Power Margin and I...

引用

IEEE PES Asia-Pacific power and Energy Engineering Conference (APPEEC)

作者： Ying-yun Sun Yue Guo Guang-yu He Sheng-wei Mei Key Lab. of Power Syst. Protection & Dynamic Monitoring & Control under Minist. of Educ. North China Electr. Power Univ. Beijing China Dept. of Electr. Eng. Tsinghua Univ. Beijing China

The maximum bus reactive power condition is given in the paper, which is deduc.d from the nature of Jacobian matrix singularity when bus reactive power reaching its limits. The extended power flow equations is also given, and the solution of the equations is just the power flow solution when bus reactive power reaching its limits. A mixed Newton algorithm which based on Broyden row modification is proposed in the paper. To avoid explicit calculating the derivative of the maximum bus reactive power condition, Broyden row modification method is used to approximate it, so the computation burden is deduc.d significantly. Numerical test in two actual syst.ms and several IEEE test syst.ms show that the proposed method can obtain bus reactive power margin only once extended power flow calculation needed, has fast calculation speed and as robust as QV curve method.

关键词： Load flow Reactive power Voltage power syst.m stability Accidents power syst.m modeling Reactive power control syst.m testing Equations Stability analysis

来源：评论

学校读者我要写书评

暂无评论

Fault Diagnosis Based on Cluster Analysis Theory in Wide Area Backup protection syst.m

Fault Diagnosis Based on Cluster Analysis Theory in Wide Are...

引用

IEEE PES Asia-Pacific power and Energy Engineering Conference (APPEEC)

作者： Yagang Zhang Jing Ma Jinfang Zhang Zengping Wang Key Lab. of Power Syst. Protection & Dynamic Security Monitoring & Control under Minist. of Educ. North China Electr. Power Univ. Baoding

In wide area backup protection of electric power syst.ms, the prerequisite of protection device's accurate, fast and reliable performance is its corresponding fault type and fault location can be discriminated quickly and defined exactly. In our researches, global information has been introduced into the backup protection syst.m. By analyzing and computing real-time PMU measurements, basing on cluster analysis theory, we are using mainly hierarchical cluster analysis technology to seek after for the statistical laws of electrical quantities' marked changes. Then we carry out fast and exact identification of faulty components and faulty sections, and finally accomplish fault isolation. Multivariate statistical analysis theory is an efficient theory that can resolve different kinds of complex problems. It has been applied successfully in many researches of various fields, such as geology, weather, hydrology, iatrology, industry, agriculture, and economy, etc. In the study of electric power syst.ms, multivariate statistical analysis theory must also have a good prospect of application.

关键词： Fault diagnosis power syst.m protection power syst.m reliability Statistical analysis Fault location power syst.m analysis computing Phasor measurement units Electric variables measurement Isolation technology Geology

来源：评论

学校读者我要写书评

暂无评论

A Method to Compensate Unbalanced Load on Instant Reactive power Theory

A Method to Compensate Unbalanced Load on Instant Reactive P...

引用

IEEE PES Asia-Pacific power and Energy Engineering Conference (APPEEC)

作者： Qiao Kun Zhongdong Yin Xiangning Xiao Qipeng Song Key Lab. of Power Syst. Protection & Dynamic Monitoring & Control under Minist. of Educ. North China Electr. Power Univ. Beijing

On the base of generalizing previously research findings, the authors of the paper apply theory of instant reactive power and theory of unbalanced compensation in the controlling of static reactive-power compensation equipments which can increase power factor and compensate three unbalance, thus simplify the algorithm of the instant reactive power. The formulary of compensating reactance is deduc.d in the condition of unbalanced load. The model of SVC which may compensate unbalanced load is established with PSCAD. The simulation proves availab.lity and feasibility of the method. In view of the aberrance of bus current in the simulation, the paper analysis harmonic content of three-phase. It is also approved feasible of the algorithm in the condition of seriously disturbing by harmonic.

关键词： Reactive power Static VAr compensators power syst.m security Capacitors Inductors Reactive power control control syst.ms PSCAD Circuits Voltage

来源：评论

学校读者我要写书评

暂无评论

Assessment of power Marketing Services Management Based on Value Engineering

Assessment of Power Marketing Services Management Based on V...

引用

International Conference on Energy and Environment Technology (ICEET)

作者： Lan Wu Zhongdong Yin Ziqiang Wang Sch. of Bus. Manage. North China Electr. Power Univ. Beijing China Key Lab. of Power Syst. Protection & Dynamic Security Monitoring & Control of Minist. of Educ. North China Electr. Power Univ. Beijing China

The value engineering services was applied in cost-effective research on power marketing service management, and carried on some power company's service case. The method combines technology, economics and management to analysis problems, which is a new emerging branch of service science. The case studied in the paper showed that the value engineering services employed solved effectively the cost-effective problems of the power marketing activities. Not only what value engineering is were introduced in the paper, but also how to use. Consequently, the solution through the method is vitally practical; it would be valuable in strategies-making for workers related.

关键词： Energy management Marketing management Engineering management power engineering and energy Cost function Technology management Conference management Environmental management power generation economics Information analysis

来源：评论

学校读者我要写书评

暂无评论

Study on Magnetic Circuit Structure of Magnetic Valve controllab.e Reactor Based on ANSYS

Study on Magnetic Circuit Structure of Magnetic Valve Contro...

引用

International Conference on Energy and Environment Technology (ICEET)

作者： Ziqiang Wang Zhongdong Yin Zhengyu Xie Key Lab. of Power Syst. Protection & Dynamic Security Monitoring & Control of Minist. of Educ. North China Electr. Power Univ. Beijing China Propaganda Dept. of Party Comm. Hebei Univ. of Sci. & Technol. Shijiazhuang China

The core cross section area of magnetic valve controllab.e reactor has a reduc.d section. By changing the saturation degree of the cross section area, the capacity of the reactor can be changed. In this paper, focusing on a new type of magnetic valve controllab.e reactor prototype, the precise 2D field-circuit coupling model of the prototype is established in the finite element analysis software ANSYS. Based on this model, the magnetic state within the core is studied under the combined effects of AC and DC. The theoretical analyses and simulation results show that the analyzed 2D field-circuit coupling model can reflects the actual reactor transient electromagnetic process accurately.

关键词： Magnetic circuits Valves Inductors Saturation magnetization Magnetic analysis Magnetic cores Software prototyping Electromagnetic modeling Electromagnetic analysis Electromagnetic coupling

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1页 << < 1 > >>

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

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：