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2008 11th International Conference on Optimization of Electrical and Electronic Equipment最新文献

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Application of meta-heuristics algorithms in discrete model of steady-state load-shedding 元启发式算法在稳态减载离散模型中的应用
2008 11th International Conference on Optimization of Electrical and Electronic Equipment Pub Date : 2008-05-22 DOI: 10.1109/OPTIM.2008.4602362
B. Rad, M. Abedi
{"title":"Application of meta-heuristics algorithms in discrete model of steady-state load-shedding","authors":"B. Rad, M. Abedi","doi":"10.1109/OPTIM.2008.4602362","DOIUrl":"https://doi.org/10.1109/OPTIM.2008.4602362","url":null,"abstract":"Optimal load-shedding during contingency situations is one of the most important issues in planning, security, and operation of power systems. Load-shedding is necessary to prevent phenomena such as voltage collapse and line over load which may lead to cascade outages and then black-out. In this paper, a new optimal load-shedding approach is presented. One of the important specifications of this method is that amount of load shed from each bus is determined. In this research, studies consist of critical single line and generator outage based on contingency ranking. The optimal load-shedding is formulated as a nonlinear optimization problem subject to operation and security constraints, where objective function is the service interruption cost. Finally, the load-shedding problem is also solved by genetic and particle swarm optimization algorithms, in which weighting factors are determined using AHP method. The proposed method is tested on the IEEE 30 bus system, and the results are presented.","PeriodicalId":244464,"journal":{"name":"2008 11th International Conference on Optimization of Electrical and Electronic Equipment","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125506096","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: 5
Investigations concerning the application possibilities of the complex power factor correction 探讨复功率因数校正的应用可能性
2008 11th International Conference on Optimization of Electrical and Electronic Equipment Pub Date : 2008-05-22 DOI: 10.1109/OPTIM.2008.4602413
M. Bojan, P. Balogh, D. Fodor, R. Marschalko
{"title":"Investigations concerning the application possibilities of the complex power factor correction","authors":"M. Bojan, P. Balogh, D. Fodor, R. Marschalko","doi":"10.1109/OPTIM.2008.4602413","DOIUrl":"https://doi.org/10.1109/OPTIM.2008.4602413","url":null,"abstract":"The paper summarizes the actual applied and new proposed techniques in the domain of the AC-line conditioning. The advantages of the line conditioning with the help of the PWM DC converters are presented. After that is briefly discussed the principle of the complex power factor correction, as an intermediate solution between the presently applied simple line conditioning methods and the formerly investigated active and complex line conditioning strategies. Some ways to the concrete application of the complex power factor correction are also depicted. More simulations carried out on the model of a power network allow interesting conclusions concerning the application possibilities of this new proposed line-conditioning strategy.","PeriodicalId":244464,"journal":{"name":"2008 11th International Conference on Optimization of Electrical and Electronic Equipment","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125664753","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
Methods of investigating construction materials used for intelligent building shielding 智能建筑屏蔽材料的研究方法
2008 11th International Conference on Optimization of Electrical and Electronic Equipment Pub Date : 2008-05-22 DOI: 10.1109/OPTIM.2008.4602520
M. Romanca, P. Ogrutan, L. Aciu, G. Nicolae
{"title":"Methods of investigating construction materials used for intelligent building shielding","authors":"M. Romanca, P. Ogrutan, L. Aciu, G. Nicolae","doi":"10.1109/OPTIM.2008.4602520","DOIUrl":"https://doi.org/10.1109/OPTIM.2008.4602520","url":null,"abstract":"Ensuring the appropriate functionality of all the interconnected electric and electronic appliances inside an intelligent building requires an environment where electromagnetic interferences are attenuated so as to eliminate any harmful effects. This paper proposes some straightforward investigation techniques regarding the electromagnetic shielding effectiveness of construction materials. The authors present some simulation methods by developing an original model for shielding capability estimation along with experimental methods and determinations on materials with shielding capability.","PeriodicalId":244464,"journal":{"name":"2008 11th International Conference on Optimization of Electrical and Electronic Equipment","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121464624","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
PV tracking data needed in the optimal design of the azimuthal tracker’s Control program 方位跟踪器控制程序优化设计中需要PV跟踪数据
2008 11th International Conference on Optimization of Electrical and Electronic Equipment Pub Date : 2008-05-22 DOI: 10.1109/OPTIM.2008.4602447
I. Visa, D. Diaconescu, A. Duţă, V. Popa
{"title":"PV tracking data needed in the optimal design of the azimuthal tracker’s Control program","authors":"I. Visa, D. Diaconescu, A. Duţă, V. Popa","doi":"10.1109/OPTIM.2008.4602447","DOIUrl":"https://doi.org/10.1109/OPTIM.2008.4602447","url":null,"abstract":"The energetic efficiency of the PV panels can be sensibly increased using tracking systems. In their control program design the main parameters are the motions amplitude and the tracking steps number which are subject of optimization based on maximization of the received direct solar radiation on panel, on minimization of the driving energy for tracking, on PV type and on local meteorological conditions. In the paper, these parameters are analyzed for the azimuthal tracking, based on maximization of the received direct solar radiation on panel for a specific day and cloudless sky. An appropriate numerical simulation model, based on MatLab software, was implemented. The results and the correlations between the parameters, obtained for the daily orientation are in designing the seasonal and yearly tracking control program design.","PeriodicalId":244464,"journal":{"name":"2008 11th International Conference on Optimization of Electrical and Electronic Equipment","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123376550","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: 13
FEM analysis of concentrated coils nonuniform slot (6+6/8) IPMSM fed with trapezoidal current 梯形电流驱动下集中线圈非均匀槽(6+6/8)永磁同步电机的有限元分析
2008 11th International Conference on Optimization of Electrical and Electronic Equipment Pub Date : 2008-05-22 DOI: 10.1109/OPTIM.2008.4602342
A. Stirban, L. Tutelea, D. Iles-Klumpner
{"title":"FEM analysis of concentrated coils nonuniform slot (6+6/8) IPMSM fed with trapezoidal current","authors":"A. Stirban, L. Tutelea, D. Iles-Klumpner","doi":"10.1109/OPTIM.2008.4602342","DOIUrl":"https://doi.org/10.1109/OPTIM.2008.4602342","url":null,"abstract":"This paper investigates an interior permanent magnet synchronous motor with 8 rotor poles and nonuniform (6+6) stator slots and concentrated windings fed with trapezoidal currents, in order to maximize the pole flux, while keeping a minimal level of cogging torque simultaneously. Dimensioning procedure of the proposed solution was done based on experience and it was validated using Finite Element Method (FEM). FEM-analysis of the case study design solution offers direct results for: field distribution at no-load and at load, back-EMF at no-load, cogging torque (zero current), load torque pulsations, reluctance torque pulsations, torque-rotor angular position characteristics for different trapezoidal-current shapes, torque-rotor angular position characteristics for different current amplitudes, and saturated synchronous inductances. With the prototype already in place experimental work is due soon.","PeriodicalId":244464,"journal":{"name":"2008 11th International Conference on Optimization of Electrical and Electronic Equipment","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115086380","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: 5
Optimisation of an electroporation device for mash 浆料电穿孔装置的优化
2008 11th International Conference on Optimization of Electrical and Electronic Equipment Pub Date : 2008-05-22 DOI: 10.1109/OPTIM.2008.4602352
M. Sack, G. Muller
{"title":"Optimisation of an electroporation device for mash","authors":"M. Sack, G. Muller","doi":"10.1109/OPTIM.2008.4602352","DOIUrl":"https://doi.org/10.1109/OPTIM.2008.4602352","url":null,"abstract":"Electroporation is a new way for the mash treatment in the course of the vinification process. To investigate the characteristics of this method in 2003 a mobile electroporation device for mash treatment has been built. In 2007 some improvements on this device have been performed in order to solve problems with blocking of the mash and tripping of the residual current protective device (RCD). A re-design of the piping system for the mash including the electroporation reactor and the method of pressure regulation became necessary. As a reason for tripping of the RCD pulse currents in the ground system caused by a switching process could be identified. A delayed switching of a group of devices reduced the energy of this pulse current below the sensitivity threshold of the RCD. The experiments performed during the wine campaign 2007 showed the success of the modifications. The paper describes the implementation of the mentioned measures into the electroporation device.","PeriodicalId":244464,"journal":{"name":"2008 11th International Conference on Optimization of Electrical and Electronic Equipment","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120894865","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
Stator winding leakage inductances determination using finite elements method 定子绕组漏电电感的有限元法测定
2008 11th International Conference on Optimization of Electrical and Electronic Equipment Pub Date : 2008-05-22 DOI: 10.1109/OPTIM.2008.4602389
O. Chiver, E. Micu, C. Barz
{"title":"Stator winding leakage inductances determination using finite elements method","authors":"O. Chiver, E. Micu, C. Barz","doi":"10.1109/OPTIM.2008.4602389","DOIUrl":"https://doi.org/10.1109/OPTIM.2008.4602389","url":null,"abstract":"This paper presents a new method to establish the leakage inductances of AC machine stator winding using a numerical analyzing program based on the finite elements method. The 3D numerical analysis is used to determine the end winding leakage inductance. In order to eliminate the magnetic flux present in the space normally occupied by the rotor, when the rotor is removed, the air from the rotor space is replaced with a very low relative magnetic permeability (10-6) material. The results obtained are compared to those obtained by another method of numerical analysis, and with those calculated analytically. For one of the models, the results are compared to the results obtained experimentally as well.","PeriodicalId":244464,"journal":{"name":"2008 11th International Conference on Optimization of Electrical and Electronic Equipment","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133869004","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: 22
Improved large signal performance of linear controlled input-series and output-parallel dc-dc converter using genetic algorithm optimization 利用遗传算法优化改进了线性控制输入串联和输出并联dc-dc变换器的大信号性能
2008 11th International Conference on Optimization of Electrical and Electronic Equipment Pub Date : 2008-05-22 DOI: 10.1109/OPTIM.2008.4602454
S. M. Khazraei, A. Jasour, A. Rahmati, A. Abrishamifar
{"title":"Improved large signal performance of linear controlled input-series and output-parallel dc-dc converter using genetic algorithm optimization","authors":"S. M. Khazraei, A. Jasour, A. Rahmati, A. Abrishamifar","doi":"10.1109/OPTIM.2008.4602454","DOIUrl":"https://doi.org/10.1109/OPTIM.2008.4602454","url":null,"abstract":"An input-series and output-parallel (ISOP) connected converter is one of the recently developed multi- module converters. The suitable control scheme for this type of converter necessitates equal voltage sharing for input- series connected modules and output current sharing for the output-parallel connected modules for all operating conditions even with existence of dissimilarity in devices and components used in each module. Such control scheme consisting of several controllers can be implemented using analog controllers. This paper presents a genetic algorithm (GA) which optimizes the parameters of analog controllers for each control loop in the control scheme of an ISOP connected converter. Using GA eliminates the need for tedious and time consuming small signal analysis of multi- module converters. Moreover, because GA chooses the best value for each parameters in different control loops simultaneously it can best consider the interaction among all loops and results in better large signal performance especially in the case of large variations in the parameters or considerable difference among modules of converter.","PeriodicalId":244464,"journal":{"name":"2008 11th International Conference on Optimization of Electrical and Electronic Equipment","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133810849","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
Power distribution in RES-Diesel autonomous power system with doubly fed induction generator for reduction of fuel consumption 采用双馈感应发电机的RES-Diesel自主电力系统的功率分配，以降低燃油消耗
2008 11th International Conference on Optimization of Electrical and Electronic Equipment Pub Date : 2008-05-22 DOI: 10.1109/OPTIM.2008.4602430
W. Koczara, G. Iwański, B. Kaminski, Marcian Cirstea, Neil Brown
{"title":"Power distribution in RES-Diesel autonomous power system with doubly fed induction generator for reduction of fuel consumption","authors":"W. Koczara, G. Iwański, B. Kaminski, Marcian Cirstea, Neil Brown","doi":"10.1109/OPTIM.2008.4602430","DOIUrl":"https://doi.org/10.1109/OPTIM.2008.4602430","url":null,"abstract":"A renewable energy system RES with cooperation of diesel driven autonomous doubly fed induction generator is presented in the paper. The analysis takes into consideration the power system, where the main power source is a variable speed diesel engine, which operates in full range of power consumption. The RES source is used for diesel engine fuel reduction. The paper presents power distribution between the two sources during supply of isolated load. Reduction of fuel consumption by the use of variable speed operation of diesel engine is also discussed. The issue of energy storage ESt cooperation with RES- diesel power generation system is evaluated. Simulation results of described system are obtained using PSIM simulation software and they are presented in the paper.","PeriodicalId":244464,"journal":{"name":"2008 11th International Conference on Optimization of Electrical and Electronic Equipment","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133314755","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: 14
Modified Z-source single-phase inverter for single-phase PM synchronous motor drives 改进型z源单相逆变器，用于单相永磁同步电机驱动
2008 11th International Conference on Optimization of Electrical and Electronic Equipment Pub Date : 2008-05-22 DOI: 10.1109/OPTIM.2008.4602416
R. Antal, N. Muntean, I. Boldea
{"title":"Modified Z-source single-phase inverter for single-phase PM synchronous motor drives","authors":"R. Antal, N. Muntean, I. Boldea","doi":"10.1109/OPTIM.2008.4602416","DOIUrl":"https://doi.org/10.1109/OPTIM.2008.4602416","url":null,"abstract":"The Z-source network, as a DC-link energy storage sub-circuit, was proposed to be used in DC-AC power conversion circuits (inverters) due to its advantages compared to the traditional LC DC-link. In this paper a new modified Z-source (MZS) network is proposed in order to reduce the number of switches in a single-phase inverter, from four switches, in a full-bridge converter, to only two switches, as well as to maintain the desired average voltage level in the DC-link. This paper presents the novel topology and the operating principle of the new MZS single-phase inverter with two switches, and an application of this converter in a motor drive system to a single-phase PM synchronous motor. The proposed system topologies are validated by digital simulations of the circuits in PSIM and SIMULINK, with tests due soon.","PeriodicalId":244464,"journal":{"name":"2008 11th International Conference on Optimization of Electrical and Electronic Equipment","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2008-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133627169","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: 19
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