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2010 International Conference on Power System Technology最新文献

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Design and realization of star connected autotransformer based 24-pulse ac-dc converter 基于24脉冲交直流变换器的星形自耦变压器的设计与实现
2010 International Conference on Power System Technology Pub Date : 2010-12-13 DOI: 10.1109/POWERCON.2010.5666625
Weilin Li
{"title":"Design and realization of star connected autotransformer based 24-pulse ac-dc converter","authors":"Weilin Li","doi":"10.1109/POWERCON.2010.5666625","DOIUrl":"https://doi.org/10.1109/POWERCON.2010.5666625","url":null,"abstract":"In this paper, the authors presented a star-connected autotransformer based 24-pulse ac-dc converter. Analysis and development of the proposed ac-dc converter is done with Matlab prior to the implementation. Then a laboratory prototype is developed and test results are presented to validate the developed design procedure and the simulation models. The proposed autotransformer-based ac-dc converter has resulted in elimination of less than 23rd harmonic in the supply current. And the resulting supply current is near sinusoidal in sharp with low total harmonic distortion (THD). The autotransformer-based structure leads to a circuit of lower cost, weight, volume and space when compared with the conventional 6-pulse ac-dc converter. Thus the proposed 24-pulse ac-dc converter is ideally suited for retrofitting with existing motor drives.","PeriodicalId":169553,"journal":{"name":"2010 International Conference on Power System Technology","volume":"1 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":"130339971","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: 4
Small signal stability assessment of extra-large power system 超大型电力系统的小信号稳定性评估
2010 International Conference on Power System Technology Pub Date : 2010-12-13 DOI: 10.1109/POWERCON.2010.5666539
Tao Hu, Fang Li, Yang Hu
{"title":"Small signal stability assessment of extra-large power system","authors":"Tao Hu, Fang Li, Yang Hu","doi":"10.1109/POWERCON.2010.5666539","DOIUrl":"https://doi.org/10.1109/POWERCON.2010.5666539","url":null,"abstract":"Several issues should be solved for small signal stability assessment of extra-large power system. First, various alternative energy generation models and modern intelligent control equipments are emerged continuously; a convenient and flexible way to simulate these models which can be updated timely should be found for the small signal stability assessment software. Second, the system state variables array dimension expands sharply with the increase of new models. Jacobi matrix, even stored in a sparse way, still will be a huge scale. The execution of the traditional serial algorithm will be high storage cost and low efficient. In this paper the user-defined model module of the power system analysis software package and a method which can linearize any block are introduced in detail. The development of the Parallel algorithms based on the ‘Multi-port Inverse Matrix parallel algorithm’ or some mature parallel numerical analysis solvers are discussed, which can be applied on the high performance PC clusters or multi-core PC.","PeriodicalId":169553,"journal":{"name":"2010 International Conference on Power System Technology","volume":"98 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":"130611932","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
Autonomous operation of wind-battery hybrid power system with maximum power extraction capability 具有最大功率提取能力的风-电池混合动力系统的自主运行
2010 International Conference on Power System Technology Pub Date : 2010-12-13 DOI: 10.1109/POWERCON.2010.5666506
N. Mendis, K. Muttaqi, S. Sayeef, S. Perera
{"title":"Autonomous operation of wind-battery hybrid power system with maximum power extraction capability","authors":"N. Mendis, K. Muttaqi, S. Sayeef, S. Perera","doi":"10.1109/POWERCON.2010.5666506","DOIUrl":"https://doi.org/10.1109/POWERCON.2010.5666506","url":null,"abstract":"The hybrid operation of a remote area power system consisting of a Doubly Fed Induction Generator (DFIG) based wind turbine, a battery storage unit and a dummy load is investigated in this paper. The battery storage unit operates as a source or load, depending on the wind power output and loading conditions of the system. The battery storage is connected to the AC side of the wind energy system through a three phase inverter to supply both active and reactive power. A dummy load is also incorporated into the AC side of the system. The design criteria of the controllers for each component (ie. DFIG, battery storage system and dummy load) and an approach for control coordination of the entire system are presented in this paper. The suitability of the proposed control coordination strategy and individual system controllers are tested in relation to the system voltage, frequency and DC link stability of the DFIG under variable wind and changing load conditions. The maximum power extraction capability from wind is also achieved throughout the operation.","PeriodicalId":169553,"journal":{"name":"2010 International Conference on Power System Technology","volume":"39 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":"123362675","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
Siting and sizing of distributed wind generation under active management mode 主动管理模式下分布式风力发电的选址与规模
2010 International Conference on Power System Technology Pub Date : 2010-12-13 DOI: 10.1109/POWERCON.2010.5666399
Jie-tan Zhang, Shun Pang, H. Tian, Maochun Wang
{"title":"Siting and sizing of distributed wind generation under active management mode","authors":"Jie-tan Zhang, Shun Pang, H. Tian, Maochun Wang","doi":"10.1109/POWERCON.2010.5666399","DOIUrl":"https://doi.org/10.1109/POWERCON.2010.5666399","url":null,"abstract":"In the smart grid, the active management (AM) mode will be applied for the connection and operation of distributed generation (DG), which means real time control and management of DG units and distribution network devices based on real time measurements of primary system parameters. The application of AM is a challenge to the validity of traditional distribution network planning, operation, and commercial practices. Network planning and operation should be synchronous when AM is applied in the distribution network: The determination of the connection capacity of DG should consider different operation situations that will appear in the future as well as the positive effect of AM to improve the technical level of the network. In this paper, a novel bi-level programming model for distributed wind generation (DWG) planning under AM mode is put forward. The model takes the maximum expectation of net benefit of DWG as the upper level program objective, and takes the minimum expectation of generation curtailment as the lower level program objective. The impact of active management algorithm on improvement of branch power flow and node voltage is taken into account. A hybrid algorithm combining the plant growth simulation algorithm (PGSA) with probabilistic optimal power flow (POPF) algorithm is presented to solve the optimal planning of DWG under AM mode. The case studies have been carried out on a 33-node distribution network, and the results verify the rationality of the planning model and the effectiveness of the proposed method.","PeriodicalId":169553,"journal":{"name":"2010 International Conference on Power System Technology","volume":"41 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":"123473501","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: 6
Service restoration of distribution system with Distributed Generation 分布式发电配电系统的业务恢复
2010 International Conference on Power System Technology Pub Date : 2010-12-13 DOI: 10.1109/POWERCON.2010.5666388
Xianchao Huang, Li-zi Zhang, G. Taylor
{"title":"Service restoration of distribution system with Distributed Generation","authors":"Xianchao Huang, Li-zi Zhang, G. Taylor","doi":"10.1109/POWERCON.2010.5666388","DOIUrl":"https://doi.org/10.1109/POWERCON.2010.5666388","url":null,"abstract":"The large scale penetration of Distributed Generation (DG) within distribution networks will significantly impact on the operation of future distribution systems. It will also be possible to take advantage of DG with regard to the service restoration in distribution networks. For example, when there is not enough capacity to restore the entire out-of-service area, the network operator can implement intentional island operation with the support of black-start DG. Furthermore, from the viewpoint of making full use of renewable energy sources, the network operator is required to ensure the interconnection of the renewable units that are installed in the out-of-service area as many as possible. Based on these assumptions, this paper establishes a new optimization model for the solution of the service restoration problem that incorporates DG and applies NSGA-II to solve the model. Numerical analysis verifies the feasibility and correctness of the model.","PeriodicalId":169553,"journal":{"name":"2010 International Conference on Power System Technology","volume":"108 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":"120892317","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: 6
The windage yaw numerical simulation of 500KV overhead transmission lines 500KV架空输电线路偏航数值模拟
2010 International Conference on Power System Technology Pub Date : 2010-12-13 DOI: 10.1109/POWERCON.2010.5666722
Y. Jia, Mao-xiang Xiao, Bo You
{"title":"The windage yaw numerical simulation of 500KV overhead transmission lines","authors":"Y. Jia, Mao-xiang Xiao, Bo You","doi":"10.1109/POWERCON.2010.5666722","DOIUrl":"https://doi.org/10.1109/POWERCON.2010.5666722","url":null,"abstract":"The windage yaw of a 500 KV ultra-high voltage transmission line under the action of random wind load was numerically analyzed in this paper. First, Fluctuating wind speeds based on Kaimal spectrum, which reflects the change of wind speed with height above ground, were numerically simulated by means of WAWS. Then finite element models of transmission tower-line system which have different spans were established by use of ANSYS. The dynamic response of the suspension insulator string under the action of fluctuating wind loads were numerically simulated with ANSYS finite element software and the results show that the span has a certain impact on the windage angle of the suspension insulator string. By comparing to current design code, it is suggested that a dynamic wind load factor should be introduced in the calculation of wind load applying on the wires and insulators in order to precisely determine the windage yaw of the suspension insulator string. The factors corresponding to different spans are provided based on the results of the numerical simulation.","PeriodicalId":169553,"journal":{"name":"2010 International Conference on Power System Technology","volume":"72 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":"116300778","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: 4
Scheme of intelligent community based on distributed generation and micro-grid 基于分布式发电和微电网的智能社区方案
2010 International Conference on Power System Technology Pub Date : 2010-12-13 DOI: 10.1109/POWERCON.2010.5666653
Qingping Wang, Changnian Lin, Xuanhuai Yang, Jialu Liu
{"title":"Scheme of intelligent community based on distributed generation and micro-grid","authors":"Qingping Wang, Changnian Lin, Xuanhuai Yang, Jialu Liu","doi":"10.1109/POWERCON.2010.5666653","DOIUrl":"https://doi.org/10.1109/POWERCON.2010.5666653","url":null,"abstract":"The paper presents scheme of intelligent community based on distributed generation and micro-grid. It includes six parts: distributed generation, storage device, charge-discharge device of EV, micro-grid control and energy management system, interactive power consumption management, smart home system. Scheme of intelligent community in this paper has been realized in displayed project of intelligent community in china.","PeriodicalId":169553,"journal":{"name":"2010 International Conference on Power System Technology","volume":"129 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113985116","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: 7
Comparison of two voltage-sharing measures for triple-break vacuum interrupters in series 串联三开真空灭弧两种电压分担措施的比较
2010 International Conference on Power System Technology Pub Date : 2010-12-13 DOI: 10.1109/POWERCON.2010.5666138
Shengwen Shu, J. Ruan, Daochun Huang, Gao-bo Wu
{"title":"Comparison of two voltage-sharing measures for triple-break vacuum interrupters in series","authors":"Shengwen Shu, J. Ruan, Daochun Huang, Gao-bo Wu","doi":"10.1109/POWERCON.2010.5666138","DOIUrl":"https://doi.org/10.1109/POWERCON.2010.5666138","url":null,"abstract":"Multiple-break vacuum circuit breaker (VCB) has been identified as an effective way to expand from the present low and middle voltage level to high voltage level, where the SF6 gas-blast circuit breaker is widely used. However, in multiple-break VCB in series, the voltage applied to each break does not become equal because of stray capacitance, opening non-synchronously or differences of contact property, which is detrimental to breaking capacity. An enhanced PSCAD/EMTDC model of simulating dielectric recovery process of signal and triple-break vacuum interrupters was developed, whose accuracy was verified by comparing simulation results with test data obtained by Edward Huber. The other research focused on choice of rational voltage sharing measures for triple-break vacuum interrupters. Two voltage-sharing measures for triple-break vacuum interrupters including shunt grading capacitor and metal oxide arrester (MOA) were investigated and compared. It is advised that both shunt grading capacitor and MOA should be considered to be installed.","PeriodicalId":169553,"journal":{"name":"2010 International Conference on Power System Technology","volume":"56 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":"114723560","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
Grounding resistance, step and touch voltages for a driven vertical rod into two layer model soil 驱动垂直杆进入两层模型土的接地电阻、阶跃电压和接触电压
2010 International Conference on Power System Technology Pub Date : 2010-12-13 DOI: 10.1109/POWERCON.2010.5666612
S. Dessouky, S. Ghoneim, Saad Awad
{"title":"Grounding resistance, step and touch voltages for a driven vertical rod into two layer model soil","authors":"S. Dessouky, S. Ghoneim, Saad Awad","doi":"10.1109/POWERCON.2010.5666612","DOIUrl":"https://doi.org/10.1109/POWERCON.2010.5666612","url":null,"abstract":"This paper presents a new technique to calculate the grounding resistance (Rg), the touch and step voltages due to discharging current into a vertical rod in two layer soil. The technique is used the current simulation method (CSM). The study of grounding resistance and earth surface potential (ESP) are the outcome of mathematical manipulations of current simulation method, image theory, resistance and capacitance duality concept. The results are in a good agreement with the other techniques.","PeriodicalId":169553,"journal":{"name":"2010 International Conference on Power System Technology","volume":"26 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":"127879069","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
Emergency voltage control based on MPC, Radau collocation and moving finite elements technique 基于MPC、Radau配置和移动有限元技术的应急电压控制
2010 International Conference on Power System Technology Pub Date : 2010-12-13 DOI: 10.1109/POWERCON.2010.5666389
Shuang Wang, Mingbo Liu, Bo Hu, M. Xie, Wenjun Li
{"title":"Emergency voltage control based on MPC, Radau collocation and moving finite elements technique","authors":"Shuang Wang, Mingbo Liu, Bo Hu, M. Xie, Wenjun Li","doi":"10.1109/POWERCON.2010.5666389","DOIUrl":"https://doi.org/10.1109/POWERCON.2010.5666389","url":null,"abstract":"The nonlinear model predictive control method is applied to design emergency voltage controller. Based on quasi-steady-state approximation, the receding dynamic optimization model is established which subjected to differential-algebraic equations with continuous-discrete time variables. To enhance computational efficiency and control precision of solving this dynamic optimization model, direct dynamic optimization approach combined with moving finite elements are proposed to solve the problem of dynamic optimization. Firstly, the research interval is divided into finite elements. Radau collocation method is used to convert the optimization model into a nonlinear programming by approximating state variable, algebraic variable and control variable profiles by a family of polynomials on each element. Then moving finite elements is introduced to adjust the length of each interval dynamically, achieve the precise positioning of control variable and improve the accuracy of the algorithm. The interior-point algorithm given by AMPL as a mathematical optimization solver is used to solve the problem. Simulation results on New England 10-machine 39-bus system verify effectiveness of the proposed method.","PeriodicalId":169553,"journal":{"name":"2010 International Conference on Power System Technology","volume":"63 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":"125638390","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
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