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2009 Transmission & Distribution Conference & Exposition: Asia and Pacific最新文献

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To calculation of the frequency characteristic of the coil with the core 计算带铁心线圈的频率特性
2009 Transmission & Distribution Conference & Exposition: Asia and Pacific Pub Date : 2009-12-18 DOI: 10.1109/TD-ASIA.2009.5356823
N. Kinsht, M. A. Katz
{"title":"To calculation of the frequency characteristic of the coil with the core","authors":"N. Kinsht, M. A. Katz","doi":"10.1109/TD-ASIA.2009.5356823","DOIUrl":"https://doi.org/10.1109/TD-ASIA.2009.5356823","url":null,"abstract":"The coil with the core is considered. It is supposed, that the capacity between the next coils and capacity between a coil and the core are set. Magnetic communication between the next coils is taken into account. The equivalent circuit of the coil in frequency area is resulted in a kind of in cascade connected 6-poles.","PeriodicalId":131589,"journal":{"name":"2009 Transmission & Distribution Conference & Exposition: Asia and Pacific","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128503717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A method of measuring three phase transmission line parameters for relay settings 一种测量继电器设置三相传输线参数的方法
2009 Transmission & Distribution Conference & Exposition: Asia and Pacific Pub Date : 2009-12-18 DOI: 10.1109/TD-ASIA.2009.5356973
M. Kato, T. Hisakado, H. Takani, H. Umezaki, K. Sekiguchi
{"title":"A method of measuring three phase transmission line parameters for relay settings","authors":"M. Kato, T. Hisakado, H. Takani, H. Umezaki, K. Sekiguchi","doi":"10.1109/TD-ASIA.2009.5356973","DOIUrl":"https://doi.org/10.1109/TD-ASIA.2009.5356973","url":null,"abstract":"The purpose of this study is to develop a method to measure transmission line parameters for protection relay setting. For relaying schemes such as distance relays, current differential relays and fault locators, it is very useful to ascertain the precise setting values in service, without the need for setting calculations prior to installation, and also for the relays to be able to adaptively change their settings as the system configuration changes. This paper describes a method of untransposed live line measurement of the parameters of a three phase transmission line. We propose a mathematical approach using synchronous voltages and line currents at both ends of the line in different states, where two models, the equivalent PI circuit and distributed constant circuit, are employed. The efficiency and issues are shown using several simulation examples in MATLAB.","PeriodicalId":131589,"journal":{"name":"2009 Transmission & Distribution Conference & Exposition: Asia and Pacific","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128779426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
The development of single-phase MJ81 electric switch point machine MJ81型单相电动开关点机的研制
2009 Transmission & Distribution Conference & Exposition: Asia and Pacific Pub Date : 2009-12-18 DOI: 10.1109/TD-ASIA.2009.5356853
J. Baek, Yongkyu Kim
{"title":"The development of single-phase MJ81 electric switch point machine","authors":"J. Baek, Yongkyu Kim","doi":"10.1109/TD-ASIA.2009.5356853","DOIUrl":"https://doi.org/10.1109/TD-ASIA.2009.5356853","url":null,"abstract":"In this paper, we present the improvement on the performance of driving part for single-phase MJ81 switch point machine which has been developed for localization. The single-phase motor's specification and reliability for speed and safety improvement of conventional line was investigated in \"Development project for Speed-up on Conventional Line\". We systemized the test procedure for single-phase motor by investigating the feasibility for localization and the specification of function and performance. Also, we developed appropriate technology and proved the durability of the single-phase driving motor by executing synthesis test over 200,000 times.","PeriodicalId":131589,"journal":{"name":"2009 Transmission & Distribution Conference & Exposition: Asia and Pacific","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129299337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Governor-response power flow (GRPF) based long-term voltage stability simulation 基于调速器响应潮流(GRPF)的长期电压稳定仿真
2009 Transmission & Distribution Conference & Exposition: Asia and Pacific Pub Date : 2009-12-18 DOI: 10.1109/TD-ASIA.2009.5356849
Young-Gon Kim, Hwachang Song, Byongjun Lee
{"title":"Governor-response power flow (GRPF) based long-term voltage stability simulation","authors":"Young-Gon Kim, Hwachang Song, Byongjun Lee","doi":"10.1109/TD-ASIA.2009.5356849","DOIUrl":"https://doi.org/10.1109/TD-ASIA.2009.5356849","url":null,"abstract":"This paper presents a practical method for long-term voltage stability simulation based on a governor-response power flow. Governor-response power flow (GRPF) can be used to model the long-term system responses at instants several seconds after disturbances. In this paper, it is postulated that the GRPF model can capture the state before load restoration begins in contingent conditions for the system with sufficiently slow load restoration characteristic. This paper describes the simulation results applying the proposed simulation to the modified New England 39-bus system.","PeriodicalId":131589,"journal":{"name":"2009 Transmission & Distribution Conference & Exposition: Asia and Pacific","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114304044","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Research on smart grid in China 中国智能电网研究
2009 Transmission & Distribution Conference & Exposition: Asia and Pacific Pub Date : 2009-12-18 DOI: 10.1109/TD-ASIA.2009.5356959
Jingjing Lu, D. Xie, Q. Ai
{"title":"Research on smart grid in China","authors":"Jingjing Lu, D. Xie, Q. Ai","doi":"10.1109/TD-ASIA.2009.5356959","DOIUrl":"https://doi.org/10.1109/TD-ASIA.2009.5356959","url":null,"abstract":"The Smart Grid is the latest direction for the future power system development. In this paper, firstly the background of Smart Grid, its meaning, as well as the concept and structure were presented. Typical diagram of Smart Grid was illustrated. Then, the current development of Smart Grid in United States and Europe were described, development ideas and the future trends in these countries were summarized and compared as well. Besides, the driving force of Smart Grid in China was analyzed, with detailed introduction of current related projects in China. The relation between the UHV Power Grid and the Smart Grid was discussed. Finally, the potential role of Smart Grid in future power grids in China was prospected and a new direction for China's Smart Grid development was charted.","PeriodicalId":131589,"journal":{"name":"2009 Transmission & Distribution Conference & Exposition: Asia and Pacific","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130432027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 52
Energy capacitor system for DFIG-based wind farm transient behavior enhancement 基于dfig的风电场瞬态行为增强的能量电容系统
2009 Transmission & Distribution Conference & Exposition: Asia and Pacific Pub Date : 2009-12-18 DOI: 10.1109/TD-ASIA.2009.5356996
J. Morel, T. Hiyama
{"title":"Energy capacitor system for DFIG-based wind farm transient behavior enhancement","authors":"J. Morel, T. Hiyama","doi":"10.1109/TD-ASIA.2009.5356996","DOIUrl":"https://doi.org/10.1109/TD-ASIA.2009.5356996","url":null,"abstract":"This paper presents the advantages of the utilization of a small-sized Energy Capacitor System (ECS) in a power system including a Doubly Fed Induction Generator (DFIG) based wind farm. In order to show its impact in the transient behavior, the ECS was located in the terminal of the wind farm. A four-machine infinite bus system was considered. One of the units was considered as an aggregated model of DFIG-based wind turbines (WT). A three-phase to ground fault was applied to a nearby line and the WTs were considered protected by standard crowbar with converter fast reconnection system. The small-sized ECS shows a positive effect not only in the WT but also in the synchronous units, such as reduction in WT mechanical stress and power oscillations. Despite the limited energy storage capacity a reasonable power output smoothing was obtained. Results show an important improvement in the system transient behavior.","PeriodicalId":131589,"journal":{"name":"2009 Transmission & Distribution Conference & Exposition: Asia and Pacific","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134083569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Power management strategy of stand-alone hybrid system to reduce the operation mode changes 单机混合动力系统的电源管理策略，以减少运行模式的变化
2009 Transmission & Distribution Conference & Exposition: Asia and Pacific Pub Date : 2009-12-18 DOI: 10.1109/TD-ASIA.2009.5356827
Ki-Hyeok Kang, Dongjun Won
{"title":"Power management strategy of stand-alone hybrid system to reduce the operation mode changes","authors":"Ki-Hyeok Kang, Dongjun Won","doi":"10.1109/TD-ASIA.2009.5356827","DOIUrl":"https://doi.org/10.1109/TD-ASIA.2009.5356827","url":null,"abstract":"This paper proposes a power management strategy to control a hybrid stand-alone system that consists of a renewable source (photovoltaic) and storage devices (battery, fuel cell). To optimize the power management strategy, power cost of storage devices should be minimized and the lifetime of storage devices should be maximized. A number of operation mode changes may significantly reduce the lifetime of storage devices. Based on a conventional strategy considering the power cost, the proposed strategy is developed to reduce operation mode change. A simulation model for the hybrid system has been developed using PSCAD/EMTDC. Simulation studies have been achieved to compare the conventional strategy with the proposed one","PeriodicalId":131589,"journal":{"name":"2009 Transmission & Distribution Conference & Exposition: Asia and Pacific","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131594890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 19
Power system communications and information-theoretic cryptography 电力系统通信和信息论密码学
2009 Transmission & Distribution Conference & Exposition: Asia and Pacific Pub Date : 2009-12-18 DOI: 10.1109/TD-ASIA.2009.5357018
T. Matsumoto, T. Kobayashi, S. Katayama, K. Fukushima, K. Sekiguchi
{"title":"Power system communications and information-theoretic cryptography","authors":"T. Matsumoto, T. Kobayashi, S. Katayama, K. Fukushima, K. Sekiguchi","doi":"10.1109/TD-ASIA.2009.5357018","DOIUrl":"https://doi.org/10.1109/TD-ASIA.2009.5357018","url":null,"abstract":"The purpose of this study is to realize a practical method of providing cyber security for power system communications. Power system communications can be classified into three main categories: real-time protection, supervisory control and data acquisition (SCADA), and remote access. This paper describes a concept and method of effectively applying information-theoretic cryptography to real-time protection and control systems, such as pilot protection schemes, wide area protection systems etc. From the requirements of real-time communication and long-term maintenance of such systems, we propose a novel scheme based on unconditionally secure authentication codes (A-codes) having short authenticators (authentication tags) and a feasible number of keys. The efficiency of the scheme is illustrated using several examples of protection and control systems.","PeriodicalId":131589,"journal":{"name":"2009 Transmission & Distribution Conference & Exposition: Asia and Pacific","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132975050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
FACTS devices allocation for congestion management considering voltage stability by means of MOPSO 考虑电压稳定性的MOPSO方法在拥塞管理中的FACTS设备分配
2009 Transmission & Distribution Conference & Exposition: Asia and Pacific Pub Date : 2009-12-18 DOI: 10.1109/TD-ASIA.2009.5357015
R. S. Wibowo, N. Yorino, M. Eghbal, Y. Zoka, Y. Sasaki
{"title":"FACTS devices allocation for congestion management considering voltage stability by means of MOPSO","authors":"R. S. Wibowo, N. Yorino, M. Eghbal, Y. Zoka, Y. Sasaki","doi":"10.1109/TD-ASIA.2009.5357015","DOIUrl":"https://doi.org/10.1109/TD-ASIA.2009.5357015","url":null,"abstract":"This paper proposes a method for solving congestion management problem by optimally allocating FACTS devices. The problem is approached by utilizing optimization method which optimizes generation and installation costs while satisfying voltage stability index. The main contribution of this paper is to provide pareto optimal solutions which describe previous objectives during congestion and after congestion removed. Moreover, the method is able to rank optimal location in relieving congestion, to describe feasibility of solutions and to show better solution in improving voltage stability. Therefore, it is valuable for decision maker in determining locations and sizes of devices which gaining the benefit. Due to the complexity of the problem, Multi Objective Particle Swarm Optimization (MOPSO) is utilized to optimize devices allocation as master sub-problem; Sequential Quadratic Programming (SQP) is used to solve the operation sub-problem, and Point of Collapse method is applied to calculate load margin during contingency. The effectiveness of this technique is demonstrated in modified IEEE 14 bus system.","PeriodicalId":131589,"journal":{"name":"2009 Transmission & Distribution Conference & Exposition: Asia and Pacific","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132746515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 17
A novel algorithm for determining the exact location of switched capacitor banks in distribution systems 一种确定配电系统中开关电容器组精确位置的新算法
2009 Transmission & Distribution Conference & Exposition: Asia and Pacific Pub Date : 2009-12-18 DOI: 10.1109/TD-ASIA.2009.5356977
H. Khani, M. Moallem, S. Sadri
{"title":"A novel algorithm for determining the exact location of switched capacitor banks in distribution systems","authors":"H. Khani, M. Moallem, S. Sadri","doi":"10.1109/TD-ASIA.2009.5356977","DOIUrl":"https://doi.org/10.1109/TD-ASIA.2009.5356977","url":null,"abstract":"In this paper a novel algorithm is proposed in order to determine the exact location of switched capacitor banks in distribution systems. The method consists of two steps. In the first step, the direction of switched capacitor bank is determined by evaluating power factor changes before and after the switching instant. In the second step, a method based on linear circuit theory is used to estimate the exact distance of switched capacitor bank from monitoring location using existing capacitor switching transient data. The method is valid for both wye and delta configured capacitor banks. The proof of the method is given and then the efficacy of the proposed algorithm is validated using the IEEE 13-bus distribution system.","PeriodicalId":131589,"journal":{"name":"2009 Transmission & Distribution Conference & Exposition: Asia and Pacific","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114479149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
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