11th International Conference on Electrical Power Quality and Utilisation最新文献_第3页

The influence of power system dynamic regimes on high voltage distribution networks 电力系统动态状态对高压配电网的影响

11th International Conference on Electrical Power Quality and Utilisation Pub Date : 2011-10-01 DOI: 10.1109/EPQU.2011.6128936

A. Lipsky, N. Miteva

{"title":"The influence of power system dynamic regimes on high voltage distribution networks","authors":"A. Lipsky, N. Miteva","doi":"10.1109/EPQU.2011.6128936","DOIUrl":"https://doi.org/10.1109/EPQU.2011.6128936","url":null,"abstract":"This article presents an approach for estimating the permissible ratio between reactive power consumption by rapid variable loads, such as electric arc furnaces and rolling mills, and short-circuit power of power supply networks from the standpoint of errors in calculation of the voltage fluctuation values. The appearance of errors caused by electromagnetic rapid and significant changes in magnitude of reactive power consumption of the above mentioned loads and the corresponding voltage fluctuations at different points in the power system. The transients of a turbogenerator with a typical diagram of its excitation control system and various mathematical models of generators were analyzed. The limiting ratio between the standard deviations of the reactive power consumption variations by the rapid variable loads and the power network parameter was evaluated. This value corresponds to the conditions, when it is possible to neglect the appearance of the electromagnetic transients in the power supply system generators during voltage fluctuation calculations at the connection point to the power network of the aforementioned loads.","PeriodicalId":369941,"journal":{"name":"11th International Conference on Electrical Power Quality and Utilisation","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133350911","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

Compensation of reactive power as a method for reducing energy losses: On the example of calculations and measurements of load flow through the distribution transformer in one of the polish distribution network 无功补偿作为降低能量损耗的一种方法:以波兰某配电网配电变压器负荷流的计算与测量为例

11th International Conference on Electrical Power Quality and Utilisation Pub Date : 2011-10-01 DOI: 10.1109/EPQU.2011.6128904

W. Wysocki, M. Szlosek

引用次数: 8

Thermal parameter identification of simplified building model with electric appliance 带电器的简化建筑模型热参数辨识

11th International Conference on Electrical Power Quality and Utilisation Pub Date : 2011-10-01 DOI: 10.1109/EPQU.2011.6128822

Herie Park, M. Ruellan, A. Bouvet, E. Monmasson, R. Bennacer

引用次数: 50

Operation of three-phase three-leg power transformers subject to voltage swell 受电压波动影响的三相三脚电力变压器的运行

11th International Conference on Electrical Power Quality and Utilisation Pub Date : 2011-10-01 DOI: 10.1109/EPQU.2011.6128964

A. S. Masoum, P. Moses, M. Masoum

引用次数: 1

Feed-in tariffs for wind energy in Portugal: Current status and prospective future 葡萄牙风能上网电价:现状与未来展望

11th International Conference on Electrical Power Quality and Utilisation Pub Date : 2011-10-01 DOI: 10.1109/EPQU.2011.6128949

José A. Barros, H. Leite

引用次数: 7

Sustainability of energy sources in nordic countries-case study based on comprehensive analysis of different renewable energy sources 北欧国家能源的可持续性——基于不同可再生能源综合分析的案例研究

11th International Conference on Electrical Power Quality and Utilisation Pub Date : 2011-10-01 DOI: 10.1109/EPQU.2011.6128841

Md. Junayed Sarker, R. A. Zaidi

引用次数: 0

Voltage profile stability analysis of radial distribution power systems in presence of DGs dg存在下径向配电系统电压分布稳定性分析

11th International Conference on Electrical Power Quality and Utilisation Pub Date : 2011-10-01 DOI: 10.1109/EPQU.2011.6128860

S. Jahdi, Alidad Etemadian, L. Lai

{"title":"Voltage profile stability analysis of radial distribution power systems in presence of DGs","authors":"S. Jahdi, Alidad Etemadian, L. Lai","doi":"10.1109/EPQU.2011.6128860","DOIUrl":"https://doi.org/10.1109/EPQU.2011.6128860","url":null,"abstract":"Today, different newly developed methods and algorithm are provided that enable power system operators to have more suitable controls over systems' parameters. Even though these new methods have provided massive contributions over control of such parameters, but still having a full proper control over profile of voltages in distribution systems needs more developed advances. To meet these necessities, applications of DGs has been introduced. Although implementation of distribution generation units can benefit the system on aspects of better voltage profiles, but it may result in more complex control necessities on connected power system. In this paper, power flow on a radial 12 bus distribution system is done and results are analyzed based on different reactive compensation algorithms provided. Clearly the final goal is providing improvements in power loss reduction and enhancing the levels of voltage states on the system and this is unachievable unless a proper reactive compensation is added to active power provided to make a complete DG unit to enhance power system stability parameters. Simulation results show that if a proper level and type of reactive compensation is provided for distribution section of power systems connected to DG sources, voltage profiles can be improved and consequently reduction in power losses can be expected.","PeriodicalId":369941,"journal":{"name":"11th International Conference on Electrical Power Quality and Utilisation","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124477921","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

Simulation of the impact of lighting on the ground wire in 400 kV transmission lines 照明对400kv输电线路接地线影响的模拟

11th International Conference on Electrical Power Quality and Utilisation Pub Date : 2011-10-01 DOI: 10.1109/EPQU.2011.6128890

J. Pedroza, J. Toledo, W. Osal, C. Vásquez, F. Mendoza

引用次数: 0

Object oriented backward/forward algorithm for unbalanced and harmonic polluted distribution systems 不平衡谐波污染配电系统的面向对象前向/后向算法

11th International Conference on Electrical Power Quality and Utilisation Pub Date : 2011-10-01 DOI: 10.1109/EPQU.2011.6128909

B. Tomoiagă, M. Chindris, A. Sudriá-Andreu, A. Sumper

引用次数: 1

Smart charge management of electric vehicles in decentralized power supply systems 分布式供电系统中电动汽车智能充电管理

11th International Conference on Electrical Power Quality and Utilisation Pub Date : 2011-10-01 DOI: 10.1109/EPQU.2011.6128863

C. Sourkounis, F. Einwachter

{"title":"Smart charge management of electric vehicles in decentralized power supply systems","authors":"C. Sourkounis, F. Einwachter","doi":"10.1109/EPQU.2011.6128863","DOIUrl":"https://doi.org/10.1109/EPQU.2011.6128863","url":null,"abstract":"In the world wide discussion on reducing CO2 emissions, the utilization of electric vehicles is considered to be a reasonable approach. But an essential contribution to CO2 reduction can only be reached by integrating the vehicles into the electrical grid as controlled loads. Demand side management allows scheduling the charging process so that vehicle accumulators are charged during time periods of high regenerative power supply or low grid load. By this means the electric vehicles can be largely supplied by CO2 free energy sources and the utilization of the power supply infrastructure can be improved. Additional investment in the replacement reserve and the expansion of the grid transmission capacity can be avoided, especially in urban areas. This contribution will introduce different concepts for the integration of electric vehicles into the electrical grid, which allow a large utilization of stochastically fluctuating regenerative energy sources. Furthermore, incentive concepts for influencing the behavior of vehicle users, in order to create a temporal correlation between the charging time of the vehicle and the availability of power from regenerative sources, will be introduced and their effects discussed.","PeriodicalId":369941,"journal":{"name":"11th International Conference on Electrical Power Quality and Utilisation","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127126193","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