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Proceedings of the 41st International Universities Power Engineering Conference最新文献

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Hybrid Modelling of a Multicellular Converter 多单元变换器的混合建模
Proceedings of the 41st International Universities Power Engineering Conference Pub Date : 2006-09-01 DOI: 10.1109/UPEC.2006.367543
K. Benmansour, A. Zahraee, M. Djemai
{"title":"Hybrid Modelling of a Multicellular Converter","authors":"K. Benmansour, A. Zahraee, M. Djemai","doi":"10.1109/UPEC.2006.367543","DOIUrl":"https://doi.org/10.1109/UPEC.2006.367543","url":null,"abstract":"In this paper a new switching scheme for modelling multicellular converters is proposed. A converter with two cells which is represented as a hybrid system with four modes of operation. The simulation of the hybrid system is realized with Stateflow. Simulation results are given to shows the efficiency of the proposed method","PeriodicalId":184186,"journal":{"name":"Proceedings of the 41st International Universities Power Engineering Conference","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122134432","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
Rational and Efficient use of Energy in Industrial Electrical Installations 在工业电力装置中合理及有效地使用能源
Proceedings of the 41st International Universities Power Engineering Conference Pub Date : 2006-09-01 DOI: 10.1109/UPEC.2006.367620
J. Carvalho
{"title":"Rational and Efficient use of Energy in Industrial Electrical Installations","authors":"J. Carvalho","doi":"10.1109/UPEC.2006.367620","DOIUrl":"https://doi.org/10.1109/UPEC.2006.367620","url":null,"abstract":"Nowadays, energy and in particular, electrical energy is fundamental in all activities, especially, in economic activities and in their development. Actually, electrical energy is the motor of all evolution and development that we witness all over the world. In fact, electrical energy is everywhere, from the smallest home electrical installation to the most complex industrial installation or in any scientific research room. Actually, in the point of view of manufacturers and users, electrical energy must be considered a good thing with great importance and, for this, it must be supplied by the former with quality and used by the latter with rationality and safety. This article describes and analyses the different kinds of losses in industrial electrical installations, and some methods will be presented that must be adopted to reduce electrical losses and to use electrical energy with more efficiency in industrial installations","PeriodicalId":184186,"journal":{"name":"Proceedings of the 41st International Universities Power Engineering Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116883864","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
A Microprocessor and Wavelets Based Relaying Approach for on Line Six-Phase Transmission Lines Protection 基于微处理器和小波的在线六相传输线保护继电保护方法
Proceedings of the 41st International Universities Power Engineering Conference Pub Date : 2006-09-01 DOI: 10.1109/UPEC.2006.367594
A. A. Hajjar, M. Mansour
{"title":"A Microprocessor and Wavelets Based Relaying Approach for on Line Six-Phase Transmission Lines Protection","authors":"A. A. Hajjar, M. Mansour","doi":"10.1109/UPEC.2006.367594","DOIUrl":"https://doi.org/10.1109/UPEC.2006.367594","url":null,"abstract":"This paper introduces a microprocessor and wavelets based non communication relaying approach dedicated for on line six-phase power transmission lines fault detection, classification and faulted phase(s) selection. The approach uses wavelets for capturing the fault induced high frequency signals of currents and/or voltages. The captured high frequency signals are then used in conjunction with their energies to determine the faulted line and consequently for making a trip decision. For this purpose, a suitable wavelet for on line protection is chosen and tuned at a suitable band of frequencies. In order to investigate a real time performance of the introduced approach a microprocessor based laboratory prototype has been implemented and tested. The obtained results show that the approach is high speed in faulted phase(s) detection and insensitive for the fault inception angle, fault resistance, and line terminals","PeriodicalId":184186,"journal":{"name":"Proceedings of the 41st International Universities Power Engineering Conference","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126979470","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 New Approach for Calculating Settings of Distance Relays Considering Mutual Coupling Effect 考虑互耦效应的距离继电器整定计算新方法
Proceedings of the 41st International Universities Power Engineering Conference Pub Date : 2006-09-01 DOI: 10.1109/UPEC.2006.367608
Zengli Yang, X. Duan
{"title":"A New Approach for Calculating Settings of Distance Relays Considering Mutual Coupling Effect","authors":"Zengli Yang, X. Duan","doi":"10.1109/UPEC.2006.367608","DOIUrl":"https://doi.org/10.1109/UPEC.2006.367608","url":null,"abstract":"This paper proposes a new systematic approach for calculating settings of all zones of ground distance relays when mutual coupling effect is considered. The proposed zone 1 setting calculation method is based on the apparent impedance seen by the ground distance relays when faults are simulated on the assumed reach of zone 1. Also, it presents a method for calculating zone 2 and zone 3 settings based on the composite current assistance parameter and apparent impedance in the paper. It is shown that the proposed systematic method guarantees the coverage of zone 1 and increases the sensitivity and accuracy of zone 2 and zone 3 settings","PeriodicalId":184186,"journal":{"name":"Proceedings of the 41st International Universities Power Engineering Conference","volume":"99 12","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120904332","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
Reliability Modelling of Uninterruptible Power Supply Using Probability Tree Method 基于概率树方法的不间断电源可靠性建模
Proceedings of the 41st International Universities Power Engineering Conference Pub Date : 2006-09-01 DOI: 10.1109/UPEC.2006.367549
Mohd. Khairil Rahmat, S. Jovanovic, K. L. Lo
{"title":"Reliability Modelling of Uninterruptible Power Supply Using Probability Tree Method","authors":"Mohd. Khairil Rahmat, S. Jovanovic, K. L. Lo","doi":"10.1109/UPEC.2006.367549","DOIUrl":"https://doi.org/10.1109/UPEC.2006.367549","url":null,"abstract":"The unreliability of public power lines have led to the need of uninterruptible power supply (UPS). Utility power failures will cause unacceptably high risk to the profitability, existence and growth of the vital aspect of business that depends heavily on uninterrupted power supply. For this reason it is important to develop a method to estimate the reliability of such system, to ensure that it will perform satisfactorily when needed. This paper describes and discusses an approach to predict the reliability parameters of the UPS system using the probability tree method. Important UPS reliability parameters such as failure rates (lambda), mean time between failures (MTBF), and reliability (R), can be obtained from this method. These quantitative reliability parameters can play an essential role in selection and application of the UPS. The method was applied to different topologies of UPS systems and comparisons were made between the results obtained form probability tree method and the reliability block diagram (RBD) method","PeriodicalId":184186,"journal":{"name":"Proceedings of the 41st International Universities Power Engineering Conference","volume":"207 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121184328","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
Investigation of Network Constraints in Transmission Networks with Significant Wind Generation Capacity 具有显著风力发电容量的输电网网络约束研究
Proceedings of the 41st International Universities Power Engineering Conference Pub Date : 2006-09-01 DOI: 10.1109/UPEC.2006.367714
M. Conlon, A. Mumtaz
{"title":"Investigation of Network Constraints in Transmission Networks with Significant Wind Generation Capacity","authors":"M. Conlon, A. Mumtaz","doi":"10.1109/UPEC.2006.367714","DOIUrl":"https://doi.org/10.1109/UPEC.2006.367714","url":null,"abstract":"The significant increase in wind power connected to supply networks introduces additional issues in the assessment of network capacity. This paper looks at the assessment of loading on transmission network elements where significant wind generation capacity has been installed. Due to the stochastic nature of wind generation, extreme conditions (e.g. maximum wind generation, minimum load) can occur, but the probability of the occurrence of such conditions is also important. The probability analysis of the effect of wind power on a transmission networks is investigated using Monte Carlo simulation","PeriodicalId":184186,"journal":{"name":"Proceedings of the 41st International Universities Power Engineering Conference","volume":"35 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116276292","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
A Simulink Based Microgrid Modelling & Operational Analysis Using Distributed Generators 基于Simulink的分布式发电机微电网建模与运行分析
Proceedings of the 41st International Universities Power Engineering Conference Pub Date : 2006-09-01 DOI: 10.1109/UPEC.2006.367748
T. K. Panigrahi, A. Saha, S. Chowdhury, S. Chowdhury, N. Chakraborty, Y. Song, S. Byabortta
{"title":"A Simulink Based Microgrid Modelling & Operational Analysis Using Distributed Generators","authors":"T. K. Panigrahi, A. Saha, S. Chowdhury, S. Chowdhury, N. Chakraborty, Y. Song, S. Byabortta","doi":"10.1109/UPEC.2006.367748","DOIUrl":"https://doi.org/10.1109/UPEC.2006.367748","url":null,"abstract":"This paper describes dynamic modeling of a microgrid operating in grid-connected mode. The model is applied to a distributed utility grid that uses three gas turbine based distributed generators (D.G.), generating power at distribution voltage level (415 volts) and these are connected to a MV grid through a transformer. These DGs are dynamic devices & hence affect the dynamic behavior of the distribution grid. The transient simulation in this paper is done using MATLAB SIMULINK. Analysis of the transient behavior of DGs in simulated environment is important for control of generators during faults, generator trip, surges and switching conditions","PeriodicalId":184186,"journal":{"name":"Proceedings of the 41st International Universities Power Engineering Conference","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128025052","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: 9
Voltage Stabilization of Synchronous Generator by Self-Tuning Controller 用自整定控制器实现同步发电机电压稳定
Proceedings of the 41st International Universities Power Engineering Conference Pub Date : 2006-09-01 DOI: 10.1109/UPEC.2006.367530
M. Ghaleh-Golabi, R. Dashti
{"title":"Voltage Stabilization of Synchronous Generator by Self-Tuning Controller","authors":"M. Ghaleh-Golabi, R. Dashti","doi":"10.1109/UPEC.2006.367530","DOIUrl":"https://doi.org/10.1109/UPEC.2006.367530","url":null,"abstract":"Like most of available industrial systems, power system does not have constant parameters; thus changes with time. Hence, when studying a power system dynamically, time invariant system behaviour could not be assumed. Therefore, for stabilization of the output voltage at the terminals of a generator, an advanced dynamic control system is required. In this paper, the use of self-tuning regulators for controlling the generator's voltage and improving dynamic performance of the system is suggested. This method, in which control laws are obtained by assigning system poles, is based on continuous identification of the variables of the system state.","PeriodicalId":184186,"journal":{"name":"Proceedings of the 41st International Universities Power Engineering Conference","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128114240","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
Grid Connected Interactive Photovoltaic Power Flow Analysis: A Technique for System Operation Comprehension and Sizing 并网交互式光伏潮流分析:一种系统运行理解与量化技术
Proceedings of the 41st International Universities Power Engineering Conference Pub Date : 2006-09-01 DOI: 10.1109/UPEC.2006.367717
M. Djarallah, B. Azoui
{"title":"Grid Connected Interactive Photovoltaic Power Flow Analysis: A Technique for System Operation Comprehension and Sizing","authors":"M. Djarallah, B. Azoui","doi":"10.1109/UPEC.2006.367717","DOIUrl":"https://doi.org/10.1109/UPEC.2006.367717","url":null,"abstract":"The progressive tendency, of the photovoltaic (PV) system connected to the electrical grid, is establishing new applications, in a way that, such system has to be optimised. Nowadays, many of these configurations start to bring benefits into the electrical network, such as: export/import of real and reactive powers, quick fix to shortages in power when used with storage equipment, active power mains harmonics filtering, and reduction of greenhouse emission and environment friendly power generation source. In this context, this paper deals with modelling and analysis of a grid connected PV system power flow, with the consideration of chain parasitic resistances and inductances. As a result, this leads to understand and infer various possible operating modes and system design concept","PeriodicalId":184186,"journal":{"name":"Proceedings of the 41st International Universities Power Engineering Conference","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125637679","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: 16
Research on On-Line Winding Deformation Monitoring of Power Transformer Based on Parameter Identification 基于参数辨识的电力变压器绕组变形在线监测研究
Proceedings of the 41st International Universities Power Engineering Conference Pub Date : 2006-09-01 DOI: 10.1109/UPEC.2006.367540
Z. Ling, Yan Huimin, Li Bangyun, Cao Yonggang
{"title":"Research on On-Line Winding Deformation Monitoring of Power Transformer Based on Parameter Identification","authors":"Z. Ling, Yan Huimin, Li Bangyun, Cao Yonggang","doi":"10.1109/UPEC.2006.367540","DOIUrl":"https://doi.org/10.1109/UPEC.2006.367540","url":null,"abstract":"As deficiency of conventional methods of winding deformation monitoring of transformer, a new way for monitoring winding deformation is proposed. After identifying parameters of transformer such as short-circuit reactance and resistance with parameter identification method, on-line winding deformation monitoring of transformer is actualized according to the change of parameter when winding deformation happens. A system of on-line winding deformation monitoring of transformer is simulated, the result proves this method's efficiency","PeriodicalId":184186,"journal":{"name":"Proceedings of the 41st International Universities Power Engineering Conference","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122246416","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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