2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE)最新文献_第8页

Optimal location and size of SVC for power losses minimization and voltage security improvement 优化SVC的位置和尺寸以减小功率损耗和提高电压安全性

2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE) Pub Date : 2015-05-07 DOI: 10.1109/ATEE.2015.7133921

A. Abdulrazzaq, M. Eremia, L. Toma, Corneliu Alexandru Mandis

引用次数: 3

Control of wind power systems imposing the current in the intermediate circuit of the converter at variable wind speed 风力发电系统在变风速条件下对变流器中间回路施加电流的控制

2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE) Pub Date : 2015-05-07 DOI: 10.1109/ATEE.2015.7133934

C. Chioncel, G. Erdodi, D. Petrescu, E. Spunei, N. Gillich

{"title":"Control of wind power systems imposing the current in the intermediate circuit of the converter at variable wind speed","authors":"C. Chioncel, G. Erdodi, D. Petrescu, E. Spunei, N. Gillich","doi":"10.1109/ATEE.2015.7133934","DOIUrl":"https://doi.org/10.1109/ATEE.2015.7133934","url":null,"abstract":"This paper presents a control method for a wind turbine with a synchronous generator with permanent magnet (SGPM), to achieve optimal function in the optimal energy field at variable wind speed. The wind speed and the angular speed of the SGPM impose the value of the generator load in the optimal energy area. Based on energy balances, done with speed and power measurements, the generator load is determined so that the system can be brought into the optimal energy area. The operation at maximum power of a wind turbine (WT) is analyzed by modifying the generators load, under the terms of a significant wind speed variation in time. The coordinates of the maximum power point (MPP) change in time being determined by the instantaneous values of the wind speed and the mechanical inertia, not in every case the wind turbine can be brought, in a timely manner, in the MPP area. The rapidity of the wind speed variation in time as well as the inertial value, are two fundamental elements upon which the operation in MPP depends. Prescribing the value of the DC current, Icc, from the intermediate converter circuit, a simple and useful control of the wind turbine system can be achieved. The control method that allows the WT to function in the optimal energy area is based on knowing the value of Icc, which is determinate from wind speed and the angular mechanical velocity (AMV).","PeriodicalId":103513,"journal":{"name":"2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132579906","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

A LiFePO4 battery discharge simulator for EV applications — Part 2: Developing the battery simulator 电动汽车用LiFePO4电池放电模拟器-第2部分:电池模拟器的开发

2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE) Pub Date : 2015-05-07 DOI: 10.1109/ATEE.2015.7133926

B. Enache, M. Alexandru, L. Constantinescu

引用次数: 1

Experimental determination of human exposure in the near field of VHF sources: Correlations between incident field strength and currents induced in lower legs of persons 人体在甚高频源近场暴露的实验测定:入射场强与人下肢诱导电流之间的相关性

2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE) Pub Date : 2015-05-07 DOI: 10.1109/ATEE.2015.7133838

S. Miclaus, P. Bechet, J. Karpowicz

引用次数: 3

A novel generalization of boost-type PFC topologies with multiple switching cells connected in series and parallel 升压型PFC拓扑的一种新推广，其中多个开关单元串联和并联连接

2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE) Pub Date : 2015-05-07 DOI: 10.1109/ATEE.2015.7133886

D. Floricau, T. Tudorache

引用次数: 3

Improved LVRT based on coordination control of active crowbar and reactive power for doubly fed induction generators 基于双馈感应发电机有功与无功协调控制的改进LVRT

2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE) Pub Date : 2015-05-07 DOI: 10.1109/ATEE.2015.7133896

M. Q. Duong, G. Sava, F. Grimaccia, S. Leva, M. Mussetta, S. Costinas, N. Golovanov

{"title":"Improved LVRT based on coordination control of active crowbar and reactive power for doubly fed induction generators","authors":"M. Q. Duong, G. Sava, F. Grimaccia, S. Leva, M. Mussetta, S. Costinas, N. Golovanov","doi":"10.1109/ATEE.2015.7133896","DOIUrl":"https://doi.org/10.1109/ATEE.2015.7133896","url":null,"abstract":"This paper proposes a control system, for crowbar protection and voltage support, for wind turbines equipped with doubly fed induction generator. The control system based on PI controller enables the low voltage ride through capability of the wind turbines. The reactive power control of doubly fed induction generators is mostly achieved by controlling its rotor side converter. The proposed control system allows regulating the reactive power using the rotor side converter as well as the grid side converter. During crowbar activation, the rotor side converter can no more control the reactive power. The proposed system controls the voltage at the point of common coupling to be above the imposed low voltage ride through curve, until the grid side converter returns to normal operation. The proposed models were implemented in Matlab/Simulink. The case studies refer to a control system with hysteresis band for the crowbar protection of a 3MW doubly fed induction generator based wind turbine. The simulation results highlights that the proposed control improves the coordination between grid side converter, rotor side converter, and crowbar protection.","PeriodicalId":103513,"journal":{"name":"2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126149406","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

PMSM drive using digital hall position sensors for light EV applications 采用数字霍尔位置传感器的永磁同步电机驱动，适用于轻型电动汽车应用

2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE) Pub Date : 2015-05-07 DOI: 10.1109/ATEE.2015.7133764

L. Kreindler, I. Iacob, G. Casaru, A. Sarca, R. Olteanu, D. Matianu

引用次数: 5

Recovery of waste heat from generator into the water preheating circuit, at steam thermal power plants 在蒸汽火力发电厂，从发电机回收余热进入水预热回路

2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE) Pub Date : 2015-05-07 DOI: 10.1109/ATEE.2015.7133877

F. Alexe, G. Darie, V. Cenuşă, D. Tuţică, M. Norișor

引用次数: 5

Creating a model based on artificial neural network for liver cirrhosis diagnose 建立了基于人工神经网络的肝硬化诊断模型

2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE) Pub Date : 2015-05-07 DOI: 10.1109/ATEE.2015.7133783

V. Bostan, B. Pantelimon

{"title":"Creating a model based on artificial neural network for liver cirrhosis diagnose","authors":"V. Bostan, B. Pantelimon","doi":"10.1109/ATEE.2015.7133783","DOIUrl":"https://doi.org/10.1109/ATEE.2015.7133783","url":null,"abstract":"Liver cirrhosis has acquired a great importance on both national and global levels due to the growing number of ill persons and nevertheless to serious complication associated to it. Worldwide liver cirrhosis (liver cirrhosis) represents the tenth leading cause of death according to recent statistical data reported by the World Health Organization: The prior concern of medical science for is to establish an effective diagnostic algorithm for liver cirrhosis and to implement therapeutic protocols in order to achieve an adequate management of complications. Time based the correct diagnose of liver cirrhosis can be essential in order to prevent further liver damage. That is translated in according the ill patient a real chance for transplantation and preventing decompensation risk factors for this condition. The main goal of this paper is to design a noninvasive method based on an artificial neural network model that will serve to diagnose liver cirrhosis patients by using only laboratory data. The prospective study included patients with various etiologies liver cirrhosis hospitalized or treated in the Gastroenterology Clinic of the Emergency Hospital “St. Andrew” from Galati which have been monitored every 3 months for one year.","PeriodicalId":103513,"journal":{"name":"2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129824439","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

Integration of residential alarm systems into electric power supplies of vital consumers 将住宅报警系统集成到重要用户的电力供应中

2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE) Pub Date : 2015-05-07 DOI: 10.1109/ATEE.2015.7133906

C. Sărăcin, Marin Saracin, Daniel Zdrenau

{"title":"Integration of residential alarm systems into electric power supplies of vital consumers","authors":"C. Sărăcin, Marin Saracin, Daniel Zdrenau","doi":"10.1109/ATEE.2015.7133906","DOIUrl":"https://doi.org/10.1109/ATEE.2015.7133906","url":null,"abstract":"This paper presents the incorporation of a residential alarm system into a low cost industrial integrated security system able to secure and control electric supply installations used to power vital industrial consumers such as hospitals, HVAC (heating, ventilation and air conditioning), safety lighting, security locks of gates and doors or, why not, police precincts and fire departments. The proposed adapted alarm system is designed to exceed the functions of a basic residential security system. The new feature of this modified alarm system consists in its capability to monitor and report the electric faults occurring in the power grid of vital consumers to a cell phone or tablet. Their electric power supply drawn from independent sources of electricity connected to the national power system in distinctive points or from dedicated emergency electric sources (dedicated power generators). The presented alarm system consists of the following components: system simulation platform of the functioning of the automatic transfer switch, residential alarm panel and keypad, communication module. The electric power supply of the vital consumers implies an automatic transfer switch (ATS) that, upon the disconnection resulted due to a defect, switches the vital consumers' connection to another power source. The automatic transfer switch may be rapid or on a preset timer. When the ATS is triggered in the rapid response mode, as a result of a fault in the electric network, the transfer is performed only if the main source has been disconnected and the electric power reserve has the minimum value of the permissible operating voltage. The timed ATS transfer is performed when the main source voltage level drops below a certain preset value called threshold voltage.","PeriodicalId":103513,"journal":{"name":"2015 9th International Symposium on Advanced Topics in Electrical Engineering (ATEE)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124014151","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