Diogo N. Oliveira, Carlos L. B. Silva, W. Calixto, A. Alves, V. Gomes, J. L. Domingos
{"title":"Heuristic methodology for horizontal multilayer soil stratification","authors":"Diogo N. Oliveira, Carlos L. B. Silva, W. Calixto, A. Alves, V. Gomes, J. L. Domingos","doi":"10.1109/EEEIC.2016.7555652","DOIUrl":"https://doi.org/10.1109/EEEIC.2016.7555652","url":null,"abstract":"Soil Stratification methods are used to estimate soil geoelectrical parameters. Several stratification methods are available, but reducing the error estimation introduced by such methods still poses as a challenge. The purpose of this work is to present a heuristic algorithm applied to the optimization of geoelectrical prospection process. The goal is to estimate soil parameters, such as the amount of layers, thickness and resistivity of each layer in an optimal and automated manner. The algorithm consists of analyzing the sensitivity of sampling space parameters. The propose methodology shows error reduction above 75% between the experimental and theoretical curves of the analyzed soils. The results are presented and discussed.","PeriodicalId":246856,"journal":{"name":"2016 IEEE 16th International Conference on Environment and Electrical Engineering (EEEIC)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129591182","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}
L. Mathe, Paul Dan Burlacu, E. Schaltz, R. Teodorescu
{"title":"Battery pack state of charge balancing algorithm for cascaded H-Bridge multilevel converters","authors":"L. Mathe, Paul Dan Burlacu, E. Schaltz, R. Teodorescu","doi":"10.1109/EEEIC.2016.7555737","DOIUrl":"https://doi.org/10.1109/EEEIC.2016.7555737","url":null,"abstract":"For most of the Multilevel Converter (MC) applications a commonly discussed issue is the maintenance of balance between the energy storage elements from the SubModules (SM). In applications where a battery pack is also part of the SM storage, such as STATCOMs or motor drives, the SM voltage is not in linear relation with the State Of Charge (SOC) of the entire battery; thus, the balancing becomes more cumbersome. A method to balance the SOC of the battery packs in a system using cascaded H-Bridge is proposed in this paper. The method uses nearest level control followed by sorting and selection based on the SOC of the battery packs. Based on the simulation results the number of switching is reduced considerably compared to the method where the phase shifted PWM is used. In addition, the time needed to achieve the balanced SOC is also reduced. The proposed method has been verified through experiments and simulations.","PeriodicalId":246856,"journal":{"name":"2016 IEEE 16th International Conference on Environment and Electrical Engineering (EEEIC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129820510","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}
Douglas F. de Carvalho, C. A. Ganzaroli, Rafael N. H. M. Dias, Luis A. Couto, W. Calixto
{"title":"Optimization process applied to tuning of dynamic matrix control: Study case with DC motor","authors":"Douglas F. de Carvalho, C. A. Ganzaroli, Rafael N. H. M. Dias, Luis A. Couto, W. Calixto","doi":"10.1109/EEEIC.2016.7555711","DOIUrl":"https://doi.org/10.1109/EEEIC.2016.7555711","url":null,"abstract":"This paper presents study about Dynamic Matrix Control (DMC) controller applied to speed control of DC motor. DMC controller parameters, prediction horizon, control horizon and damping rate of reference, are obtained through optimization methods employing heuristic and deterministic strategies. The use of advanced control technique combined with using of optimization methods aims to achieve highly efficient control, reducing the transient state period and variations in steady state. This methods were applied on a simulation model in order to verify which one provides better control results.","PeriodicalId":246856,"journal":{"name":"2016 IEEE 16th International Conference on Environment and Electrical Engineering (EEEIC)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127183288","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}
{"title":"Performance evaluation of LLCL filter for active power filter","authors":"Mehmet Buyuk, Mustafa Inci, M. Tumay","doi":"10.1109/EEEIC.2016.7555875","DOIUrl":"https://doi.org/10.1109/EEEIC.2016.7555875","url":null,"abstract":"Active Power Filter (APF) is an inverter based device that compensates the harmonic currents generated by nonlinear loads. Inverters release high frequency switching ripple harmonics. In early studies, APFs have been generally interfaced to the grid via a single L filter to reduce these harmonics. However, high order filters like LCL and LLCL filters have been recently used with APFs instead of L filter due to insufficient mitigation of L filter. LCL and LLCL filters have better attenuation of switching ripple harmonics at high frequencies. Attenuation performance of LLCL filter at switching frequency is superior to LCL filter. Since LLCL filter has resonance problem, a simple resistor is connected in series with parallel LC branch. The purpose of this paper is to evaluate the performance of LLCL filter for different damping resistor values when used with APF. In order to examine the performance of the LLCL filter, a simulation model is developed in Simulink/MATLAB.","PeriodicalId":246856,"journal":{"name":"2016 IEEE 16th International Conference on Environment and Electrical Engineering (EEEIC)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127288214","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}
{"title":"Real-time optimal power flow under wind energy penetration-Part II: Implementation","authors":"E. Mohagheghi, A. Gabash, Pu Li","doi":"10.1109/EEEIC.2016.7555465","DOIUrl":"https://doi.org/10.1109/EEEIC.2016.7555465","url":null,"abstract":"In this paper (Part II) we implement the prediction-updating approach developed in Part I to address fast changes in wind power generation when solving a complex realtime optimal power flow (RT-OPF) problem. The approach considers essential scenarios around forecasted wind power values in a moving prediction horizon (120 seconds). The individual optimal power flow problems corresponding to these scenarios are solved in parallel using a multi-processor server. Then the operation strategy is updated in a short sampling time (every 20 seconds) considering real wind power values. The RT-OPF problem is formulated considering both technical and economic aspects simultaneously. The RT-OPF is implemented on a 41-bus medium-voltage distribution network with two wind stations. The results show the benefits of the proposed approach and highlight further challenges of RT-OPF.","PeriodicalId":246856,"journal":{"name":"2016 IEEE 16th International Conference on Environment and Electrical Engineering (EEEIC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130076269","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}
{"title":"Capacity credit of Philippine wind farms in Luzon","authors":"A. R. D. de Guzman, A. Tio","doi":"10.1109/EEEIC.2016.7555440","DOIUrl":"https://doi.org/10.1109/EEEIC.2016.7555440","url":null,"abstract":"Wind power generation is increasingly gaining popularity around the world and in the Philippines, with its economic and environmental benefits. However, its intermittent nature poses a problem on power system adequacy, the effects of which must be quantified for reliable system operation and proper expansion planning. The Effective Load Carry Capability (ELCC) is one such metric that can quantify the effects of wind generation on system adequacy. In this paper, we present the computed ELCC of four wind farms in the Philippine Luzon grid and compare it to other published results in other countries. We hope that results presented in this paper will help spur interest in studies on the effects of wind generation in power system operation, regulation, and planning, locally and within the region.","PeriodicalId":246856,"journal":{"name":"2016 IEEE 16th International Conference on Environment and Electrical Engineering (EEEIC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130146138","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}
{"title":"Modelling and control of three-phase grid-connected power supply with small DC-link capacitor for electrolysers","authors":"L. Torok, L. Mathe, C. Nielsen, S. Munk‐Nielsen","doi":"10.1109/EEEIC.2016.7555674","DOIUrl":"https://doi.org/10.1109/EEEIC.2016.7555674","url":null,"abstract":"These days electrolyzers are becoming more and more interesting due to the high demand for energy storage in form of hydrogen for renewable power generation using fuel cells. The design of a power supply for such a system is complex especially when the DC-link capacitance is reduced. By substituting the complex switching model of the power supply with a simplified one, the system dynamics can be better observed. The resonances caused by the small DC link capacitor and grid side inductance can be easier analyzed. A feed forward compensation method is proposed based on the simplified model of the system in order to minimize the effects of the DC link voltage ripple on the load voltage and current. The proposed method uses Frequency-Locked Loop (FLL) for estimating the fundamental component of the DC-link voltage ripple. Based on the reconstructed rectifier component a new feed-forward compensation signal is created, canceling in such a way the resonance introduced by the grid inductance and the DC-link capacitor from the feed-forward loop. The theoretical work has been validated through experiments on a 5 kW DC power supply used for electrolyser application.","PeriodicalId":246856,"journal":{"name":"2016 IEEE 16th International Conference on Environment and Electrical Engineering (EEEIC)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132389726","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}
Ernesto Cesario, R. C. Grifoni, A. Leuzzi, Davide Paciotti
{"title":"Light design in historical buildings: Parameters and prototypes. Comparison of façade behavior: Metal meshes vs. high-tenacity polymer composite meshes","authors":"Ernesto Cesario, R. C. Grifoni, A. Leuzzi, Davide Paciotti","doi":"10.1109/EEEIC.2016.7555702","DOIUrl":"https://doi.org/10.1109/EEEIC.2016.7555702","url":null,"abstract":"The quality of living spaces has long been a key issue in design focused on user needs. To correctly define the environmental quality of indoor spaces, many aspects must be considered, which necessarily involves transverse knowledge. An important role in the quality of spaces is the correct use of natural light to ensure good lighting and user comfort. This is even truer within historical buildings where the final function or use has changed over the centuries. At the same time, simulation tools have recently become very important, along with new measurement models based on open-source protocols. The experimental method proposed is applied to initial analysis for the design of a high-performance shell that can optimize façade behavior in relation to solar radiation, considering aesthetic aspects as well. The research aims to show how historical buildings could benefit from the versatile nature of high-technological devices that can answer both the functional and aesthetic needs of ancient structures. The goal is to obtain the best indoor conditions in terms of visual comfort. The results confirm the need to consciously use modern technological tools to support design. The design of healthy, safe, comfortable environments can and must make use of the most innovative architectural support tools, but it still requires the awareness and ability of the designer to achieve efficient solutions.","PeriodicalId":246856,"journal":{"name":"2016 IEEE 16th International Conference on Environment and Electrical Engineering (EEEIC)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132520130","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}
G. Brusco, A. Burgio, D. Menniti, M. Motta, A. Pinnarelli, N. Sorrentino
{"title":"A repetitive-based control for a single-phase shunt active power filter for harmonic voltage compensation","authors":"G. Brusco, A. Burgio, D. Menniti, M. Motta, A. Pinnarelli, N. Sorrentino","doi":"10.1109/EEEIC.2016.7555478","DOIUrl":"https://doi.org/10.1109/EEEIC.2016.7555478","url":null,"abstract":"This paper is focused on a single phase shunt active filter based on detection of harmonic voltages at the point of installation; the mission of the active filter is to eliminate these harmonic voltages implementing a repetitive-based control. The active filter is a single-phase voltage-controlled voltage source inverter controlled so to generate a harmonic voltage in phase with the one detected at the point of installation. The proposed repetitive-based control regulates the power at the fundamental frequency so to maintaining the dc voltage of the capacitor placed on the dc side of the filter close to a reference; such an issue is faced implementing the self-charging functionality or supplying real power to the grid when the active filter is a distributed generation solution. Numerical results are provided so to demonstrate the effectiveness and the feasibility of the proposed repetitive-based control in compensating harmonic voltages in an electrical power distribution system.","PeriodicalId":246856,"journal":{"name":"2016 IEEE 16th International Conference on Environment and Electrical Engineering (EEEIC)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131981861","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}
M. Regula, A. Otcenásová, M. Roch, Roman Bodnar, Michal Repak
{"title":"SCADA system with power quality monitoring in Smart Grid model","authors":"M. Regula, A. Otcenásová, M. Roch, Roman Bodnar, Michal Repak","doi":"10.1109/EEEIC.2016.7555577","DOIUrl":"https://doi.org/10.1109/EEEIC.2016.7555577","url":null,"abstract":"The paper deals with designing and implementation of Smart Grid model with designing of power quality measurement software in these networks. There was created a simulation model which has the same parameters setting as the real network. Various renewable energy sources represented by small hydropower plant, photovoltaic power plant and wind power plant are integrated in the designed scheme of Smart Grid. A part of the real network model in laboratory environment is controlling and evaluating SCADA system which was designed in LabVIEW programme. This system provides real-time control of power switching relays, obtains information about their status and performs three-phase measurement. The basic system displays information about voltage, current, and total harmonic distortion. SCADA system can perform detailed power quality measurement in individual points. The system supplies three types of customers, namely industrial zone, a city and two villages. The entire system is connected into a mash-grid structure. Several analyses and measurements were carried out for the given structure in order to obtain results for optimal operation of the network focusing on the power quality in Smart Grid.","PeriodicalId":246856,"journal":{"name":"2016 IEEE 16th International Conference on Environment and Electrical Engineering (EEEIC)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130982202","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}