2010 International Conference on Power System Technology最新文献_第7页

Statistical analysis and research on galloping characteristics and damage for iced conductors of transmission lines in China 国内输电线路结冰导线驰骋特性及损伤的统计分析与研究

2010 International Conference on Power System Technology Pub Date : 2010-12-13 DOI: 10.1109/POWERCON.2010.5666025

K. Zhu, B. Liu, Hai-jun Niu, Jun-hui Li

{"title":"Statistical analysis and research on galloping characteristics and damage for iced conductors of transmission lines in China","authors":"K. Zhu, B. Liu, Hai-jun Niu, Jun-hui Li","doi":"10.1109/POWERCON.2010.5666025","DOIUrl":"https://doi.org/10.1109/POWERCON.2010.5666025","url":null,"abstract":"Galloping is a major impact on the design of overhead transmission lines and has caused various kinds of structural damage. With rapid development of construction content and scale for China grid and with frequent appearance for worse severe weather in recent years, galloping accidents of iced conductors are becoming more frequent in China, which has caused severe economic losses and social impacts. The statistic data is collected based on historical records about galloping accidents in nearly 20 years in China. And the statistic results are presented by probability statistic methods, which includes statistical characteristics of structural parameters for transmission lines,different ices coated on the conductors, different meteorological conditions (wind, rain, snow, temperature and humidity etc.) and different damages caused by galloping when galloping accidents take place. Using dimensional analysis, the major parameters to influence galloping accidents occurrence are proposed and the statistic relations between relevant parameters and galloping occurrence are derived. And based on the new characteristics, changes for galloping accidents occurrence in time domain and areal distribution are proposed to obtain the new trend for transmission lines galloping in China. The results and conclusions in this paper can provide a research direction and data support for galloping theoretical analyses and anti-galloping design.","PeriodicalId":169553,"journal":{"name":"2010 International Conference on Power System Technology","volume":"22 8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129184746","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: 14

Orthogonal flux controllable reactor for transmission lines 输电线路正交磁通可控电抗器

2010 International Conference on Power System Technology Pub Date : 2010-12-13 DOI: 10.1109/POWERCON.2010.5666118

Xiaobo Yang, Chengyan Yue

引用次数: 7

A novel islanding detection method based on digital PLL for grid-connected converters 一种基于数字锁相环的并网变换器孤岛检测方法

2010 International Conference on Power System Technology Pub Date : 2010-12-13 DOI: 10.1109/POWERCON.2010.5666097

Chao Fu, Xinchun Shi, Yi Wang, Li Peng, L. Guang-hui

引用次数: 6

System impact study for the future large-scale offshore wind farm around Penghu archipelago 澎湖列岛未来大型海上风电场系统影响研究

2010 International Conference on Power System Technology Pub Date : 2010-12-13 DOI: 10.1109/POWERCON.2010.5666517

Wu Yuan-kang, Lee Ching-Ying, Chao Huang-Yu, Chang Ming-Jen

引用次数: 3

Interval mixed-integer programming for daily unit commitment and dispatch incorporating wind power 风电机组日投入调度区间混合整数规划

2010 International Conference on Power System Technology Pub Date : 2010-12-13 DOI: 10.1109/POWERCON.2010.5666050

Xin Sun, Che Fang

{"title":"Interval mixed-integer programming for daily unit commitment and dispatch incorporating wind power","authors":"Xin Sun, Che Fang","doi":"10.1109/POWERCON.2010.5666050","DOIUrl":"https://doi.org/10.1109/POWERCON.2010.5666050","url":null,"abstract":"In this paper, a new method of daily unit commitment and dispatch incorporating wind power is introduced based on interval number theory. Interval Programming method has its unique advantage in uncertainty problem which caused by the volatile nature of wind power generation. The bounds of uncertainty parameters are the only information needed which could be acquired conveniently. A day-ahead unit commitment mathematical model is established by interval mixed-integer programming method, in which the uncertainty wind power generation is represented by a functional interval. In the process of solving interval mixed-integer programming problem, the optimal model is firstly divided into two deterministic mix-integer programming sub-problems with the parameters expressed as constants. These two sub-problems are solved in turn. Then, the interval solutions of the model can be constructed by the solutions of two sub- problems. The case based on IEEE 30-bus system is studied. It can be proved that the model proposed in this paper is universally adaptable in day-ahead generation scheduling, and it shows that the algorithm is effective and the result is feasible.","PeriodicalId":169553,"journal":{"name":"2010 International Conference on Power System Technology","volume":"124 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121441878","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: 15

Construction and operational properties of offshore wind farm power generation system with self-commuted HVDC transmission 自换向高压直流输电海上风电场发电系统的结构与运行特性

2010 International Conference on Power System Technology Pub Date : 2010-12-13 DOI: 10.1109/POWERCON.2010.5666071

Guohong Wu, Yuya. Tohbai, Tomoyuki Takahashi

{"title":"Construction and operational properties of offshore wind farm power generation system with self-commuted HVDC transmission","authors":"Guohong Wu, Yuya. Tohbai, Tomoyuki Takahashi","doi":"10.1109/POWERCON.2010.5666071","DOIUrl":"https://doi.org/10.1109/POWERCON.2010.5666071","url":null,"abstract":"As one of the renewable and clean energy resources, wind power is attracting considerable attentions and becoming most developing renewable energy resources due to its large unit capacity, etc. This paper make an basic approach to the construction of offshore wind farm power generation system, which is considered to be a promising way to increase the practical utilization of wind power. In this paper, the concepts of prediction of offshore wind data from measured land wind data, the basic construction of wind farm, the design of wind power transmission circuit and the control of various power equipments for an offshore wind farm generation system, are dealt with and presented. With this proposed system, a self-commutated HVDC transmission system is adopted to transmit wind power from offshore to the power grid on land. As a result of simulation study with an one-machine infinite bus power system model on PSCAD/EMTDC platform, the electrical characteristics of the proposed offshore wind power generation system are illustrated and its operational properties are verified.","PeriodicalId":169553,"journal":{"name":"2010 International Conference on Power System Technology","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126291686","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: 2

Impact of energy storage in micro-grid systems with DGs 具有dg的微电网系统储能的影响

2010 International Conference on Power System Technology Pub Date : 2010-12-13 DOI: 10.1109/POWERCON.2010.5666059

U. Kwhannet, N. Sinsuphun, U. Leeton, T. Kulworawanichpong

{"title":"Impact of energy storage in micro-grid systems with DGs","authors":"U. Kwhannet, N. Sinsuphun, U. Leeton, T. Kulworawanichpong","doi":"10.1109/POWERCON.2010.5666059","DOIUrl":"https://doi.org/10.1109/POWERCON.2010.5666059","url":null,"abstract":"This paper presents an impact study of energy storage on a micro-grid system consisting of a very small power producer of a biomass type. The energy storage used in this paper is a battery bank. It comprises a combination between shunt and series battery cells in order to implement a sufficient battery storage system. To verify the simulated battery storage system, one day operation of an electric power distribution system was tested. This simulation was performed using MATLAB software in order to support and also to balance the energy exchange between the generation (drawn from both substation and renewable energy plants) and the power demand of the entire system. With the energy storage plant of battery banks, a simple 6-bus test system with a total power generation of 6 MW is situated for test. Considering of four test cases (case 1: without energy storage installation and neglecting power losses, case 2: without energy storage installation but considering power losses, case 3: with energy storage installation but power losses neglected, case 4: with energy storage installation and also considering power losses). Power transmission losses used in this paper can be determined by using Newton-Raphson power flow solution method. The simulation of the test system was carried out by performing one day simulation with energy storage and energizing stored energy by using an appropriate algorithm. The results showed that the system with energy storage can lead to efficient energy usage and power loss reduction.","PeriodicalId":169553,"journal":{"name":"2010 International Conference on Power System Technology","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116089957","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: 20

Converter valve design and valve testing for Xiangjiaba - Shanghai ±800kV 6400MW UHVDC power transmission project 向家坝至上海±800kV 6400MW特高压直流输电工程换流阀设计及阀门试验

2010 International Conference on Power System Technology Pub Date : 2010-12-13 DOI: 10.1109/POWERCON.2010.5666461

B. Sheng, J. Danielsson, Yanny Fu, Zehong Liu

引用次数: 9

Optimal capacity planning for stand-alone photovoltaic generation in Taiwan 台湾独立光伏发电的最优容量规划

2010 International Conference on Power System Technology Pub Date : 2010-12-13 DOI: 10.1109/POWERCON.2010.5666609

J. Ling, K. Son

引用次数: 4

Research of an improved grid-connected PV generation inverter control system 一种改进型并网光伏发电逆变控制系统的研究

2010 International Conference on Power System Technology Pub Date : 2010-12-13 DOI: 10.1109/POWERCON.2010.5666106

Yan-qing Li, Cheng Chen, Qing Xie

引用次数: 10