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2012 13th International Conference on Optimization of Electrical and Electronic Equipment (OPTIM)最新文献

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Side effects of microwaves in aqueous solutions 微波对水溶液的副作用
2012 13th International Conference on Optimization of Electrical and Electronic Equipment (OPTIM) Pub Date : 2012-05-24 DOI: 10.1109/OPTIM.2012.6231829
G. Morariu, O. Croitoru, M. Machedon-Pisu, M. Dutca
{"title":"Side effects of microwaves in aqueous solutions","authors":"G. Morariu, O. Croitoru, M. Machedon-Pisu, M. Dutca","doi":"10.1109/OPTIM.2012.6231829","DOIUrl":"https://doi.org/10.1109/OPTIM.2012.6231829","url":null,"abstract":"The effect of the magnetic and electromagnetic radiant fields HF on water or on the behaviour of aqueous solutions and slurries has gained more and more interest for research in the current years. For example, it was shown that water can suffer some changes in its physico-chemical properties (REDOX potential, pH, etc.) due to the variations of intensity and/or frequency. The idea of certain modifications to the actual structure of the water when exposed to electromagnetic sources was criticized due to the low energy of the electromagnetic fields used (similar to the fields from cellular communication systems), which are weak fields compared to the microwaves radiant fields producing mainly thermal effects. The situation is complicated by the fact that most studied effects depend on the composition of the water and/or the environmental conditions.","PeriodicalId":382406,"journal":{"name":"2012 13th International Conference on Optimization of Electrical and Electronic Equipment (OPTIM)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125271518","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
Experimental determination of harmonic conditions amplification in a distribution network by capacitor bank switching 电容器组开关对配电网谐波条件放大的实验测定
2012 13th International Conference on Optimization of Electrical and Electronic Equipment (OPTIM) Pub Date : 2012-05-24 DOI: 10.1109/OPTIM.2012.6231894
A. Baloi, L. Kocewiak, C. Bak, A. Pana
{"title":"Experimental determination of harmonic conditions amplification in a distribution network by capacitor bank switching","authors":"A. Baloi, L. Kocewiak, C. Bak, A. Pana","doi":"10.1109/OPTIM.2012.6231894","DOIUrl":"https://doi.org/10.1109/OPTIM.2012.6231894","url":null,"abstract":"The paper presents a study comprising laboratory measurements for the evaluation of the harmonic amplification due to capacitor bank switching. The mathematical model of the amplification factors of the current flowing on the circuit elements is presented. Theoretical aspects, regarding the total harmonic distortion (THD) of the capacitor current computed using the amplification factor, are originally presented. Nonlinear loads as six pulse rectifier and National Instruments measurement sensors together with LabView software were used on the laboratory set-up. The main instrument of the method is the harmonic impedance, “seen” in the bus of the capacitor bank switching. MatLab Simulink is used for the determination of the harmonic impedance.","PeriodicalId":382406,"journal":{"name":"2012 13th International Conference on Optimization of Electrical and Electronic Equipment (OPTIM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129766109","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
High-efficiency voltage regulator and stabilizer for outdoor lighting installations 用于室外照明装置的高效稳压器和稳定器
2012 13th International Conference on Optimization of Electrical and Electronic Equipment (OPTIM) Pub Date : 2012-05-24 DOI: 10.1109/OPTIM.2012.6231839
F. Blanquez, E. Rebollo, F. Blázquez, C. Platero, P. Frías
{"title":"High-efficiency voltage regulator and stabilizer for outdoor lighting installations","authors":"F. Blanquez, E. Rebollo, F. Blázquez, C. Platero, P. Frías","doi":"10.1109/OPTIM.2012.6231839","DOIUrl":"https://doi.org/10.1109/OPTIM.2012.6231839","url":null,"abstract":"This paper presents a high performance system of regulation and stabilization of luminous flux for public street lighting installations. Its purpose is to reduce the luminous flux of the luminaries efficiently by reducing their voltage supply, resulting in the improvement of energy efficiency in the installation. The system is basically composed of electromagnetic components which provide robustness and high-performance to the device, as well as minimum maintenance requirements. However, the voltage regulation is based on the application of voltage steps. Aging studies of the luminaries have been carried out to analyze the impact of this discrete voltage regulation. A specific prototype of this voltage and stabilizer regulator have been in operation in a real outdoor lighting installation for more than one year.","PeriodicalId":382406,"journal":{"name":"2012 13th International Conference on Optimization of Electrical and Electronic Equipment (OPTIM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130796935","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
Hemp (Cannabis sativa L.) seeds after plasma treatment 血浆处理后的大麻种子
2012 13th International Conference on Optimization of Electrical and Electronic Equipment (OPTIM) Pub Date : 2012-05-24 DOI: 10.1109/OPTIM.2012.6231981
B. Šerá, I. Gajdova, B. Gavril, E. Hnatiuc, M. Serý, P. Špatenka
{"title":"Hemp (Cannabis sativa L.) seeds after plasma treatment","authors":"B. Šerá, I. Gajdova, B. Gavril, E. Hnatiuc, M. Serý, P. Špatenka","doi":"10.1109/OPTIM.2012.6231981","DOIUrl":"https://doi.org/10.1109/OPTIM.2012.6231981","url":null,"abstract":"This experiment was focus to increase the germination and growth of hemp seed by using cold plasma discharge. The seeds of three hemp cultivars (Finola, Bialobrzeskie, and Carmagnola) were pre-treated in Plasonic AR-550-M and GlidArc apparatuses for three time expositions (180 s, 300 s, and 600 s). Commercial Plasonic AR-550-M apparatus was not suitable for plasma pre-treatment, because all seeds were obviously under a big stress. GlidArc device was suitable. GlidArc plasma pre-treatment positively affected the seeds of the cultivar Finola in all tested expositions above all. Seedling acceleration on the fifth day of the experiment showed higher values than control sample (153% in length and 127% in weight of seedlings). Although tested cultivars were taxonomically very similar, high differences in response to plasma pre-treatment were found.","PeriodicalId":382406,"journal":{"name":"2012 13th International Conference on Optimization of Electrical and Electronic Equipment (OPTIM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131228030","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
Loss based performance index for the reactive power control 基于损耗的无功控制性能指标
2012 13th International Conference on Optimization of Electrical and Electronic Equipment (OPTIM) Pub Date : 2012-05-24 DOI: 10.1109/OPTIM.2012.6231932
L. Manescu, D. Rusinaru
{"title":"Loss based performance index for the reactive power control","authors":"L. Manescu, D. Rusinaru","doi":"10.1109/OPTIM.2012.6231932","DOIUrl":"https://doi.org/10.1109/OPTIM.2012.6231932","url":null,"abstract":"The reactive power is the major drawback of the AC electric grids. This paper proposes a performance index, “Q/loss”, based on the energy loss share of the MVAR flows. If computed with powers, the performance index is time-dependent and characterizes one grid operating regime. Calculated on energy basis, it stamps the quality of the MVAR control over a period of time. As outlined by simulations conducted for various IEEE test-systems as well as on a region of the Romanian transmission grid, the performance index ranges from few percent to some 15%. The energy loss related to the MVAR flows can be either be allocated to the grid operator or carried over the corresponding ancillary service: reactive power supply for voltage regulation.","PeriodicalId":382406,"journal":{"name":"2012 13th International Conference on Optimization of Electrical and Electronic Equipment (OPTIM)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129652167","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: 7
Factors influencing the electrical conductivity of composites with iron particles 影响铁颗粒复合材料导电性的因素
2012 13th International Conference on Optimization of Electrical and Electronic Equipment (OPTIM) Pub Date : 2012-05-24 DOI: 10.1109/OPTIM.2012.6231895
I. Oltean, D. Motoc
{"title":"Factors influencing the electrical conductivity of composites with iron particles","authors":"I. Oltean, D. Motoc","doi":"10.1109/OPTIM.2012.6231895","DOIUrl":"https://doi.org/10.1109/OPTIM.2012.6231895","url":null,"abstract":"This paper aims to present the factors influencing the electrical conductivity of polymer based composites reinforced with different iron particle volume fractions. For these materials were studied the electrical conductivity dependence on temperature, current density value, and their variation with an external applied load along with samples behaviour monitoring under an external applied magnetic field. Furthermore, a correlation with theoretical predictions will be added for comparison. Based on the herein results and those reported in other references nominates these materials as a viable alternative for the classical ones used already in various electrical and electronic equipments.","PeriodicalId":382406,"journal":{"name":"2012 13th International Conference on Optimization of Electrical and Electronic Equipment (OPTIM)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127912887","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
Irradiance sensitivity of the model parameters of photovoltaic cells 光伏电池辐照度灵敏度的模型参数
2012 13th International Conference on Optimization of Electrical and Electronic Equipment (OPTIM) Pub Date : 2012-05-24 DOI: 10.1109/OPTIM.2012.6231796
H. Andrei, T. Ivanovici, G. Predusca, P. Andrei, E. Diaconu
{"title":"Irradiance sensitivity of the model parameters of photovoltaic cells","authors":"H. Andrei, T. Ivanovici, G. Predusca, P. Andrei, E. Diaconu","doi":"10.1109/OPTIM.2012.6231796","DOIUrl":"https://doi.org/10.1109/OPTIM.2012.6231796","url":null,"abstract":"Photovoltaic (PV) systems have been successfully used for over five decades. The output characteristics of PV cell depend on the environmental conditions. For any solar cell, the model parameters are function of the temperature and the irradiance values of the site where the panel is placed. In this paper the performances of PV cells are analysed related to the different irradiance level by using the circuit sensitivity. Therefore the model parameters of the equivalent circuits for typical PV cell are characterized by first-order sensitivity relations. LabVIEW and MatLab applications are implemented to prove the theoretical models. Numerical examples taken from real case on PV cells are provided.","PeriodicalId":382406,"journal":{"name":"2012 13th International Conference on Optimization of Electrical and Electronic Equipment (OPTIM)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126150947","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
Dual input, small power, PV and wind energy conversion system 双输入，小功率，光伏和风能转换系统
2012 13th International Conference on Optimization of Electrical and Electronic Equipment (OPTIM) Pub Date : 2012-05-24 DOI: 10.1109/OPTIM.2012.6231942
N. Muntean, M. Gavris, O. Cornea
{"title":"Dual input, small power, PV and wind energy conversion system","authors":"N. Muntean, M. Gavris, O. Cornea","doi":"10.1109/OPTIM.2012.6231942","DOIUrl":"https://doi.org/10.1109/OPTIM.2012.6231942","url":null,"abstract":"The proposed, small power, mixed wind and PV energy conversion system (MWPV) consists of a dual input hybrid buck L/ hybrid buck C, DC-DC converter (HBLC), made by two hybrid step down converters with a high ratio of the input/output voltage (the main part), a battery bank as a storage element, and a DC-AC inverter for AC loads supplied with, or without grid connection. The MWPV is coordinated by an energy management control unit (EMCU) in order to obtain maximum energy conversion efficiency and to establish the working regime. Operating modes, analytical description and digital simulations, validated by experimental results, are presented for HBLC. The operation strategy flowcharts of the proposed MWPV are also described.","PeriodicalId":382406,"journal":{"name":"2012 13th International Conference on Optimization of Electrical and Electronic Equipment (OPTIM)","volume":"424 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126717430","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
Overcoming the challenges of designing CMOS Software Defined Radio Receivers front-ends embedding analog signal conditioning 克服CMOS软件无线电接收机前端嵌入模拟信号调理设计的挑战
2012 13th International Conference on Optimization of Electrical and Electronic Equipment (OPTIM) Pub Date : 2012-05-24 DOI: 10.1109/OPTIM.2012.6231983
S. Spiridon, C. Dan, M. Bodea
{"title":"Overcoming the challenges of designing CMOS Software Defined Radio Receivers front-ends embedding analog signal conditioning","authors":"S. Spiridon, C. Dan, M. Bodea","doi":"10.1109/OPTIM.2012.6231983","DOIUrl":"https://doi.org/10.1109/OPTIM.2012.6231983","url":null,"abstract":"Today's mobile terminals are real multiple media platforms compatible to a rather large number of wireless standards. The ideal candidate for such a mobile terminal radio receiver front-end is the Software Defined Radio Receiver (SDRR). The main challenge the designer must overcome is the SDRR circuit level design optimization, while considering the large amount of information comprised in the envisaged wireless standards. By driving the SDRR design through an initial system level analysis, based on a standard independent systematic methodology, the useful information is structured. Thus, a SDRR design recipe is developed based on the circuit / transistor level designer perspective.","PeriodicalId":382406,"journal":{"name":"2012 13th International Conference on Optimization of Electrical and Electronic Equipment (OPTIM)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114227903","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
Robust control of a permanent magnet synchronous machine 永磁同步电机的鲁棒控制
2012 13th International Conference on Optimization of Electrical and Electronic Equipment (OPTIM) Pub Date : 2012-05-24 DOI: 10.1109/OPTIM.2012.6231909
S. Coman, V. Comnac, C. Boldisor
{"title":"Robust control of a permanent magnet synchronous machine","authors":"S. Coman, V. Comnac, C. Boldisor","doi":"10.1109/OPTIM.2012.6231909","DOIUrl":"https://doi.org/10.1109/OPTIM.2012.6231909","url":null,"abstract":"This paper describes an application of the robust control theory applied to a Permanent Magnet Synchronous Machine (PMSM). To keep a simple design, the authors considered only parametric disturbances of the process coefficients. In this particular case, inertia is the uncertainty parameter. To avoid the uncertainty problem, usage of the H∞ robust control theory is proposed. As a first step, all the equations of the motor must be defined and presented in the state space domain. As a further step, a H∞ controller is designed by using the H∞ robust control theory. This allows the variation of inertia into a predefined range. While the selection of the weighting functions is not unique, finding them is an important problem in the robust control design. In most of the cases such functions can be either low pass filters or band pass filters. The authors are proposing a method to cope with the required system performance. The design and the experimental results are done in Matlab.","PeriodicalId":382406,"journal":{"name":"2012 13th International Conference on Optimization of Electrical and Electronic Equipment (OPTIM)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114483850","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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