检索结果-内蒙古大学图书馆

International Conference on Advanced Mechatronic Systems (ICAMechS)

作者： Xiu Liancheng Kang Zhiliang Sichuan Agr Univ Sch Mech & Elect Engn Yaan Sichuan Peoples R China

ISBN: (纸本)9781538626023

The model of high voltage direct current (HVDC) system was built with the electromagnetic simulation software pscad/emtdc, and then simulative analysis of stable operation state and faulty operation state was carried out on this the model, which gives simulated waveforms and conclusion analysis. This paper provides the effectiveness of the HVDC system of pscad/emtdc and the basis system of HVDC for future fault diagnosis according to the result of simulation is consistent with that of therapy.

关键词： HVDC short-circuit fault pscad/emtdc simulation

来源：评论

学校读者我要写书评

暂无评论

simulation Studies on Mitigating Sub synchronous Resonance with Coaxial Double Fed Motor

Simulation Studies on Mitigating Sub synchronous Resonance w...

引用

IEEE International Conference on Power System Technology (POWERCON)

作者： Xu Jinfeng Song Ruihua Xiang Zutao Wang Xiaojun Du Ning Beijing Jiaotong Univ Beijing 100044 Peoples R China China Elect Power Res Inst Beijing Peoples R China

ISBN: (纸本)9781467328685

With the rotor's AC excitation characteristics, the double fed motor can realize free control of the rotational speed and the torque, so it has advantages on mitigating subsynchronous resonance (SSR). This paper proposes the method of using double fed motor for mitigating SSR for the first time. When double fed motor and generator are installed coaxially, the double fed motor can bring in damping torque to the shaft directly, so as to mitigate SSR. By analyzing the transfer characteristics of the damping torque attached to the shaft by coaxial double fed motor, as well as supplementary subsynchronous damping control strategy, it is indicated that this method can mitigate SSR in the closed-loop control effectively. Based on IEEE SSR first benchmark, simulation model about coaxial double fed motor for SSR mitigation is built. simulation results show that the proposed coaxial double fed motor for SSR mitigation is effective.

关键词： subsynchronous resonance (SSR) coaxial double-fed motor supplementary subsynchronous damping resonance mitigation pscad/emtdc simulation

来源：评论

学校读者我要写书评

暂无评论

Steady State Analysis for Power System of HSR with Active Transformer

引用

JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY 2016年第1期11卷 257-265页

作者： Kim, Wook-Won Kim, Hyung-Chul Shin, Seung-Kwon Kim, Jin-O Hanyang Univ Dept Elect Engn Seoul South Korea Metropolitan Transportat Reseach Ctr Dept Smart Stn Res Team Austin TX USA

In this paper, new electric railway feeding system which has active transformer is modeled for evaluating the steady state analysis using pscad/emtdc. Equivalent models including power supply, feeder, train and transformers are proposed for simplifying the model of the feeding system in high speed electric railway. In case study, simulation results applied to proposed model are compared with the conventional and new systems through the catenary voltage, three-phase voltage of PCC (Point of Common Coupling) and the efficiency of regenerative braking energy.

关键词： Active transformer SCOTT Transformer Regenerative braking energy Equivalent model pscad/emtdc simulation

来源：评论

学校读者我要写书评

暂无评论

Asymmetrical multilevel converter topology with reduced number of components

引用

IET POWER ELECTRONICS 2013年第6期6卷 1188-1196页

作者： Babaei, Ebrahim Kangarlu, Mohammad Farhadi Hosseinzadeh, Mohammad Ali Univ Tabriz Fac Elect & Comp Engn Tabriz Iran

In this study, firstly a new basic unit is proposed for multilevel converters. The proposed basic units are used as building blocks to form a cascaded multilevel converter. In other words, the proposed topology consists of cascaded basic units. The proposed basic unit and the proposed multilevel converter use lower number of switching devices and gate driver circuits. In the proposed topology, two design parameters are available: the number of cascaded basic units and the number of dc voltage sources in each basic unit. These two parameters can be used to design the desired multilevel converter based on the operational conditions. Therefore the proposed topology offers good flexibility in designing. An algorithm for determining the values of the dc voltage sources is given in order to generate maximum number of voltage levels. The comparison results with some recently introduced topologies show that the proposed topology effectively reduces the components count. The simulation results obtained in pscad/emtdc as well as the experimental results of a 51-level inverter based on the proposed topology are presented to verify its performance.

关键词： cascade networks driver circuits invertors switching convertors asymmetrical multilevel converter topology cascaded multilevel converter switching devices gate driver circuits design parameters cascaded basic units operational conditions dc voltage source value determination pscad/emtdc simulation 51-level inverter cascade networks driver circuits invertors switching convertors asymmetrical multilevel converter topology cascaded multilevel converter switching devices gate driver circuits design parameters cascaded basic units operational conditions dc voltage source value determination pscad/emtdc simulation 51-level inverter

来源：评论

学校读者我要写书评

暂无评论

HTS power cable model component development for pscad/emtdc considering conducting and shield layers (vol 19, pg 1785, 2009)

引用

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 2009年第5期19卷 3755-3755页

作者： Kim, Jin Geun Lee, Jeadeuk Kim, Jae-Ho Kim, A-Rong Cho, Jeonwook Sim, Ki-Deok Kim, Seockho Lee, Jun Kyoung Park, Minwon Yu, In-Keun Department of Electrical Engineering Changwon National University Changwon 641-773 Korea Korea Electrotechnology Research Institute Changwon 641-120 Korea Department of Mechanical Engineering Kyungnam University Masan 631-701 Korea

The resistance of conventional power cables is not changed a lot by fault current condition. But HTS power cable has some different properties. The impedance of superconductor is changed due to the magnitude of current, temperature, and magnetic field. Before applying the HTS power cable to the real utility, the system needs to be analysed using certain simulation tools. Even though pscadIemtdc is one of the most useful simulation tools, it does not provide the component of HTS power cable which has the same impedance characteristic of real HTS power cable. The authors developed the component of HTS power cable whose electrical properties were obtained under DC current condition through previous research work. The performances of HTS cable component for pscadIemtdc have been improved under AC current condition in this paper. [ABSTRACT FROM AUTHOR]

关键词： Fault current HTS power cable pscad/emtdc simulation

来源：评论

学校读者我要写书评

暂无评论

The Compensation Effect of the Distributed Arc Suppression Coil in 10kV Network System 42

The Compensation Effect of the Distributed Arc Suppression C...

引用

42nd Annual Conference of the IEEE-Industrial-Electronics-Society (IECON)

作者： Liu, Mengxuan Zhao, Jianfeng Southeast Univ Sch Elect Engn 2 Si Pai Lou Nanjing Jiangsu Peoples R China

ISBN: (纸本)9781509034741

The rapid urbanization and development of modern cities increases the demand of the city's infrastructure networks. Particularly, a continuous expansion of electric network scale is required, which results in an increase of system capacitive current. For the arc suppression coil grounding system, increasing compensation capacity of arc suppression coil is necessary, especially when the single-phase earth fault occurs. And this could be realized by updating the master arc suppression coil. In this paper, a new approach is adopted which involve installing a distributed arc suppression coil to cooperate with the mater one. The compensation effect of distributed arc suppression coil is studied through establishing models of 10kV network system and distributed arc suppression coil with the software pscad/emtdc. Different installation positions and compensation capacities are investigated. The results show that the use of the distributed arc suppression coil can markedly reduce the fault residual current into a controllable and reasonable range. Among four different installation positions, line terminal installation is relatively preferable. Besides, the proportion of distributed compensation capacity in total system compensation capacity should preferably be 45%, where residual current at the point of grounding fault always remain as less than 5A.

关键词： single-phase earth fault arc suppression coil distributed compensation pscad/emtdc simulation fault residual current

来源：评论

学校读者我要写书评

暂无评论

Flexible DC System Fault Analysis 2018

Flexible DC System Fault Analysis

引用

International Conference on Robotics, Control and Automation Engineering (RCAE) / International Conference on Advanced Mechanical and Electrical Engineering (AMEE)

作者： Yin, Jun Xue, Yuqiang Wu, Lingmin Fuzhou Univ Fuzhou Fujian Peoples R China

ISBN: (纸本)9781450361026

With the development of power electronics technology, flexible DC distribution system is getting more attention. The paper introduces the development of the flexible DC distribution system, and analyzes the pole-to-ground fault of the double-ended power supply system. Then it uses the electromagnetic transient simulation software pscad/emtdc to build a model for verification. The calculation results show that in the case of DC-side clamped resistance grounding method, when the system experiences a pole-to-ground fault, the active power does not change.

关键词： Flexible DC system pole-to-ground fault pscad/emtdc simulation

来源：评论

学校读者我要写书评

暂无评论

Design and testing of an TCSC for distribution network applications

Design and testing of an TCSC for distribution network appli...

引用

International Conference on Industrial and Information Systems

作者： Kumara, J. R. S. S. Bandara, A. M. T. K. Atputharajah, A. Ekanayake, J. B. Department of Electrical and Electronics Engineering Faculty of Engineering University of Peradeniya Sri Lanka

ISBN: (纸本)9781424403219

Connection of distributed generator (DG) into very weak points of the electricity distribution network is increasing. These connections impose many operational issues and therefore utilities restrict DG connections to the grid. In this study an application of thyristor controlled series compensator (TCSC) to overcome some of these issues are investigated, especially voltage control at the point of connection and its fault limiting capability. The TCSC was designed for a prototype network and implemented in the laboratory. The expected performance of the model was investigated with pscad/emtdccopy simulation and verified with experimental results. Application of an TCSC with a distributed generator (DG) for a real scale network was studies using pscad/emtdc simulation to investigate the performance of the TCSC as FCL and series compensator

关键词： distribution networks power grids thyristor applications thyristors voltage control pscad/emtdc simulation TCSC distributed generator distribution network applications thyristor controlled series compensator

来源：评论

学校读者我要写书评

暂无评论

Power quality enhancement of grid-connected wind power generation system by SMES

Power quality enhancement of grid-connected wind power gener...

引用

IEEE/PES Power Systems Conference and Exposition

作者： Jung, Hee-yeol Park, Dae-Jin Seo, Hyo-Ryong Park, Minwon Yu, In-Keun Changwon Natl Univ Dept Elect Engn Chang Won 641773 South Korea

ISBN: (纸本)9781424438105

Dispersed power generation systems are expected as important electric power supply systems for the next generation. Wind power generation system (WPGS) is widely being introduced in the worldwide power utilities. The WPGS output power fluctuates due to wind speed variations. Hence, if a large number of wind power generators are connected to the grid system, their output can cause serious power quality problems, that is, frequency and voltage fluctuations may happen. In order to solve these problems, the smoothing control of wind power generator output is very important. In addition, Superconducting Magnet Energy Storage (SMES) is surely one of the key technologies to overcome these fluctuations. The SMES can compensate even small disturbances. With these points as background, this paper deals with power quality enhancement of grid-connected WPGS by pitch control and SMES. emtdc and RTDS based simulations are performed for a small island power system including WPGS and the results are discussed in detail.

关键词： Dispersed generation system pscad/emtdc simulation RTDS SMES wind power generation system

来源：评论

学校读者我要写书评

暂无评论

Small nuclear power generation units, and electric power system interconnection

Small nuclear power generation units, and electric power sys...

引用

General Meeting of the Power-Engineering-Society

作者： Lee, Sang-Seung Park, Jong-Keun Moon, Seung-Il Yoon, Yong-Tae Kim, Jong-Won Park, Goon-Cherl Seoul Natl Univ Korea Elect Engn & Sci Res Inst 130-Dong Seoul 151742 South Korea Seoul Natl Univ Sch Elect Engn Seoul 151742 South Korea Seoul Natl Univ Nucl Engn Seoul 151742 South Korea

ISBN: (纸本)9781424404926

In this paper, we will be introduce a new paradigm for energy supply system in near future which produces electric and district heat cogeneration with dispersed power grid with small nuclear power generation units (SNPGU). Recently, in nuclear field, a lot of effort has been done in nuclear major countries to develop small and medium reactor for enhancement of nuclear peaceful use as like in district heating, electric power generation, seawater desalination or hydrogen generation. In Korea, KAERI (Korea Atomic Energy Research Institute) has been developing an integral type nuclear cogeneration reactor, SMART (System-integrated Modular Advance ReacTor). SMART is a modular pressurized water reactor and it is expected to be used for dual-purpose applications of seawater desalination and small-scale power generation. Since SMART will be located relatively near the residential area, SMART should have highly enhanced safety characteristics compared with current Nuclear Power Plants (NPPs). This paper presents the distributed & remote cogeneration system using small reactor, which connects and supports main power distribution grids or island areas of maintaining Korea Electric Power Corporation (KEPCO). The electric power capacity of the developed SNPGU has 2MW, 5MW, 10MW, and 20MW.

关键词： Small Nuclear Power Generation Units (SNPGUs) System-integrated Modular Advance ReacTor (SMART) dispersed generations KEPCO power system pscad/emtdc simulation

来源：评论

学校读者我要写书评

暂无评论

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：

请选择收藏分类：

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

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：