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2010 9th International Conference on Environment and Electrical Engineering最新文献

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An electrical analogy for flow augmention in tropical rivers 热带河流流量增加的电学类比
2010 9th International Conference on Environment and Electrical Engineering Pub Date : 2010-05-16 DOI: 10.1109/EEEIC.2010.5489921
Richa Babbar, R. Vikal, A. Thube
{"title":"An electrical analogy for flow augmention in tropical rivers","authors":"Richa Babbar, R. Vikal, A. Thube","doi":"10.1109/EEEIC.2010.5489921","DOIUrl":"https://doi.org/10.1109/EEEIC.2010.5489921","url":null,"abstract":"Non linear flow augmentation model has been presented here. The model is built on an analogy of load flow problem in an interconnected power system; with a proven convexity under the various constraints. It is capable of incorporating water quality of the augmentation source, and changes in the water quality in river base flow due to augmentation. Further, the mathematical model has been used to pretense the flow problem as a constrained optimization problem.","PeriodicalId":197298,"journal":{"name":"2010 9th International Conference on Environment and Electrical Engineering","volume":"2012 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127410148","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 new auto-inductive harmonic-suppression transformer and its harmonic equivalent circuit model 一种新型自感谐波抑制变压器及其谐波等效电路模型
2010 9th International Conference on Environment and Electrical Engineering Pub Date : 2010-05-16 DOI: 10.1109/EEEIC.2010.5489926
Yong Li, L. Luo, Pengfei Shao, C. Rehtanz, Dechang Yang, S. Rüberg
{"title":"A new auto-inductive harmonic-suppression transformer and its harmonic equivalent circuit model","authors":"Yong Li, L. Luo, Pengfei Shao, C. Rehtanz, Dechang Yang, S. Rüberg","doi":"10.1109/EEEIC.2010.5489926","DOIUrl":"https://doi.org/10.1109/EEEIC.2010.5489926","url":null,"abstract":"According to the demand of harmonic suppression and reactive power compensation for large-power electrical ac/dc converter systems, this paper proposes a new auto-inductive harmonic-suppression (AIHS) transformer and a corresponding inductive filtering technology, analyzes its harmonic model constructed by the transformer windings and the full-tuned circuit under the specific harmonic frequencies, and establishes the harmonic equivalence circuit model. Based on this, this paper reveals the filtering mechanism of the new inductive filtering technology, and obtains the necessary impedance condition of the new transformer and the tuned condition of the full-tuned circuit to suppress the main harmonic currents in the secondary windings. Finally, a test study on a railway traction prototype system with the AIHS-type single-phase traction transformer is performed to verify the correctness of theoretical analysis, and present the good inductive filtering performance that the new transformer has.","PeriodicalId":197298,"journal":{"name":"2010 9th International Conference on Environment and Electrical Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127442072","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
A new method for transmission Loss Allocation method in the deregulated power market 一种解除管制的电力市场中输电损耗分配新方法
2010 9th International Conference on Environment and Electrical Engineering Pub Date : 2010-05-16 DOI: 10.1109/EEEIC.2010.5489928
M. Bavafa, M. Shakeri, N. Navidi
{"title":"A new method for transmission Loss Allocation method in the deregulated power market","authors":"M. Bavafa, M. Shakeri, N. Navidi","doi":"10.1109/EEEIC.2010.5489928","DOIUrl":"https://doi.org/10.1109/EEEIC.2010.5489928","url":null,"abstract":"The past decade has seen a dramatic change in the manner in which the power industry is organized. In a deregulated environment, Loss Allocation in the transmission lines is one of the most important problem, so a transmission loss allocation (TLA) method for generator and load nodes is presented by considering mathematical formulation between node power and line power flow. The formulation is based on X-matrix in DC transmission network. By the TLA method, an optimization strategy of DC power dispatch is proposed compare with AC optimal power flow (OPF) and former DC-OPF method. The proposed TLA method is also one of useful way to assess network use cost for individual transaction participant in the deregulated power market. The effectiveness of the proposed methods is illustrated through numerical examples for IEEE-118 power system.","PeriodicalId":197298,"journal":{"name":"2010 9th International Conference on Environment and Electrical Engineering","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127888522","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
Development of a simulation model of a HTS-fault current limiter for the network computation software DIgSILENT PowerFactory 基于网络计算软件DIgSILENT PowerFactory的hts -故障限流器仿真模型的开发
2010 9th International Conference on Environment and Electrical Engineering Pub Date : 2010-05-16 DOI: 10.1109/EEEIC.2010.5489958
M. Ruge, K. Pfeiffer
{"title":"Development of a simulation model of a HTS-fault current limiter for the network computation software DIgSILENT PowerFactory","authors":"M. Ruge, K. Pfeiffer","doi":"10.1109/EEEIC.2010.5489958","DOIUrl":"https://doi.org/10.1109/EEEIC.2010.5489958","url":null,"abstract":"High-temperature superconducting fault current limiters (HTS-FCL) are excellent equipment for fault current limitation. In the scope of an extensive research project regarding current limitation in power station auxiliary systems, a HTS-FCL simulation is currently developed. With help of this model the widespread implications of using a HTS-FCL at various locations and voltage levels in the auxiliaries systems will be examined.","PeriodicalId":197298,"journal":{"name":"2010 9th International Conference on Environment and Electrical Engineering","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126820960","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
What is an effective energy tax system for Portugal? 葡萄牙有效的能源税制度是什么?
2010 9th International Conference on Environment and Electrical Engineering Pub Date : 2010-05-16 DOI: 10.1109/EEEIC.2010.5490434
N. Domingues, Rui Neves da Silva, J. J. de Melo
{"title":"What is an effective energy tax system for Portugal?","authors":"N. Domingues, Rui Neves da Silva, J. J. de Melo","doi":"10.1109/EEEIC.2010.5490434","DOIUrl":"https://doi.org/10.1109/EEEIC.2010.5490434","url":null,"abstract":"Although the environmental issues are becoming more perceptive in the public opinion as well as the awareness and understanding from the governments and the stakeholders, the proposal of a taxation shift focus from labour productivity to resources and energy usage (as the environmental tax reform) effect is still to be proven. This paper gather information to support decision making of all stakeholders involved in making markets work for improvements in resource exploitation and environment (sustainability), innovation and competitiveness (economy) and employment (social welfare).","PeriodicalId":197298,"journal":{"name":"2010 9th International Conference on Environment and Electrical Engineering","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115363314","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
A unique load shedding application in a large pulp mill electrical system 在大型纸浆厂电气系统中独特的减载应用
2010 9th International Conference on Environment and Electrical Engineering Pub Date : 2010-05-16 DOI: 10.1109/EEEIC.2010.5489975
H. Goh, B. C. Kok
{"title":"A unique load shedding application in a large pulp mill electrical system","authors":"H. Goh, B. C. Kok","doi":"10.1109/EEEIC.2010.5489975","DOIUrl":"https://doi.org/10.1109/EEEIC.2010.5489975","url":null,"abstract":"Nowadays advanced technology in producing powerful equipments or devices in engineering sector not only help engineer from various fields such as mills and construction to rectify problems instantly but in more relevant and reliable ways. For example, microprocessor protection relay in the market, which is a type of protection relay that can be linked up with profibus, modbus and etc to centralize control system for supervision, control, monitoring and data collection or storage purposes to enable end users to monitor and observe the system easily. This type of centralized integration concept is the future development trend, which will benefit end users.","PeriodicalId":197298,"journal":{"name":"2010 9th International Conference on Environment and Electrical Engineering","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115552105","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
Dynamic behaviour of five-level grid connected modular inverters 五电平并网模块化逆变器的动态特性
2010 9th International Conference on Environment and Electrical Engineering Pub Date : 2010-05-16 DOI: 10.1109/EEEIC.2010.5490041
G. Adam, S. Finney, B. Williams
{"title":"Dynamic behaviour of five-level grid connected modular inverters","authors":"G. Adam, S. Finney, B. Williams","doi":"10.1109/EEEIC.2010.5490041","DOIUrl":"https://doi.org/10.1109/EEEIC.2010.5490041","url":null,"abstract":"Modular inverters are suitable for grid integration of renewable power such as solar and wind with reduced power losses, improved power quality, and high reliability. Also, it allows the integration of renewable energy to the grid without the need for interfacing transformer. This paper investigates the dynamics behaviour of a five-level modular inverter connected to the grid when subjected to major transient events, such as loss of major load and AC faults. The paper uses the results obtained from the simulations conducted in Matlab-Simulink to demonstrate the resiliency of the modular inverters to major transient events.","PeriodicalId":197298,"journal":{"name":"2010 9th International Conference on Environment and Electrical Engineering","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115207588","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
Clipping and time domain statistical method for PAPR reduction in OFDM system OFDM系统中减少PAPR的裁剪和时域统计方法
2010 9th International Conference on Environment and Electrical Engineering Pub Date : 2010-05-16 DOI: 10.1109/EEEIC.2010.5490035
Aeizaal Azman Abdul Wahab, M. F. Ain
{"title":"Clipping and time domain statistical method for PAPR reduction in OFDM system","authors":"Aeizaal Azman Abdul Wahab, M. F. Ain","doi":"10.1109/EEEIC.2010.5490035","DOIUrl":"https://doi.org/10.1109/EEEIC.2010.5490035","url":null,"abstract":"The large peak to average power ratio (PAPR) is widely believed as one of the most critical problem for OFDM systems and a lot of methods have been proposed to reduce PAPR. A new PAPR reduction method for the OFDM system by combining both clipping method and time domain statistical method has been proposed and investigated. The approach is very flexible and can work with arbitrary number of sub-carries without restriction on the type of modulation applied on them. Furthermore, there is no need for side information, and no loss in terms of data rate. Simulation results show that more than 6dB reduction in the PAPR value can be achieved using the proposed method.","PeriodicalId":197298,"journal":{"name":"2010 9th International Conference on Environment and Electrical Engineering","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129820953","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
Electric breakdown strength measurement in liquid dielectrics 液体电介质的电击穿强度测量
2010 9th International Conference on Environment and Electrical Engineering Pub Date : 2010-05-16 DOI: 10.1109/EEEIC.2010.5489916
M. Marci, I. Kolcunová
{"title":"Electric breakdown strength measurement in liquid dielectrics","authors":"M. Marci, I. Kolcunová","doi":"10.1109/EEEIC.2010.5489916","DOIUrl":"https://doi.org/10.1109/EEEIC.2010.5489916","url":null,"abstract":"Development of new technologies and materials in electric power engineering is very closely associated with question of ecology presently. Daily, there is consumed thousands tons of electro-insulating materials, including of electro-insulating oil, which are the main component of paper - oil transformers by the electric power systems devices production. Precautions against the oil leakage into environment, during failure, liquidation, but also normal operation, is really expensive and not absolute safe. Therefore, the current effort is to find new, environmentally friendly alternative, which could be the organic oils. Electrical characteristics of these oils are still not clearly investigated, therefore this paper deals with research and comparison of electric breakdown strength of mineral oils, silicone oil and vegetable oils, which is an important electrical parameter of liquid dielectrics.","PeriodicalId":197298,"journal":{"name":"2010 9th International Conference on Environment and Electrical Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128918172","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: 10
Optimal coordination of directional overcurrent relays using harmony search algorithm 基于和谐搜索算法的定向过流继电器优化协调
2010 9th International Conference on Environment and Electrical Engineering Pub Date : 2010-05-16 DOI: 10.1109/EEEIC.2010.5489935
M. Barzegari, S. Bathaee, M. Alizadeh
{"title":"Optimal coordination of directional overcurrent relays using harmony search algorithm","authors":"M. Barzegari, S. Bathaee, M. Alizadeh","doi":"10.1109/EEEIC.2010.5489935","DOIUrl":"https://doi.org/10.1109/EEEIC.2010.5489935","url":null,"abstract":"Directional over current relays (DOR) are used to protection of interconnected networks and looped distribution systems. Several techniques and formulations have been proposed to solve the optimal coordination of DOR problem. In this paper, harmony search algorithm (HSA) is proposed for optimal coordination of DOR in a looped distribution system. Then this algorithm is developed to a new Improvised harmony search algorithm (IHSA) to solve the same problem. IHSA employs a new method that enhance fine tuning and convergence rate of HSA. The optimal setting of over current relays for a standard distribution network are obtained and comparison between the new methods and some other methods is made.","PeriodicalId":197298,"journal":{"name":"2010 9th International Conference on Environment and Electrical Engineering","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125482291","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: 48
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