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2012 IEEE International Symposium on Alternative Energies and Energy Quality (SIFAE)最新文献

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Influential variables in coal batch microwave drying 煤分批微波干燥的影响因素
2012 IEEE International Symposium on Alternative Energies and Energy Quality (SIFAE) Pub Date : 2012-10-01 DOI: 10.1109/SIFAE.2012.6478899
M. Alvarado, M. Chamorro, J. Mejfa, L. Hernández
{"title":"Influential variables in coal batch microwave drying","authors":"M. Alvarado, M. Chamorro, J. Mejfa, L. Hernández","doi":"10.1109/SIFAE.2012.6478899","DOIUrl":"https://doi.org/10.1109/SIFAE.2012.6478899","url":null,"abstract":"This study evaluates the variables effect of particle size, coal type, operating time and microwave power level during the coal dewatering in a batch microwave process. The batch microwave coal drying was obtained at 300 and 500W of power and was compared with the muffle thermal drying at 80°C. The results show that batch microwave drying is able to remove the 50% of the contain moisture within the coal delaying 10% of the required time by muffle technique. Was found that microwave process do not affect Hard Grove Index, the Calorific Value, and the Ash content coal properties.","PeriodicalId":330140,"journal":{"name":"2012 IEEE International Symposium on Alternative Energies and Energy Quality (SIFAE)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121987518","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
Dynamic modeling and control design for a photovoltaic system for MPPT MPPT光伏系统动态建模与控制设计
2012 IEEE International Symposium on Alternative Energies and Energy Quality (SIFAE) Pub Date : 2012-10-01 DOI: 10.1109/SIFAE.2012.6478890
C. V. Carmona, A. F. Restrepo, J. H. Urrea
{"title":"Dynamic modeling and control design for a photovoltaic system for MPPT","authors":"C. V. Carmona, A. F. Restrepo, J. H. Urrea","doi":"10.1109/SIFAE.2012.6478890","DOIUrl":"https://doi.org/10.1109/SIFAE.2012.6478890","url":null,"abstract":"Photovoltaic panels have become an important option for supplying electric energy demand, as they transform the energy coming from the sun into electric energy. One of the main goals of this kind of systems is to extract the maximum power from the panel. In this paper it is proposed to use the P&O algorithm working together with a PID controller; the latter is used to find the Maximum Power Point (MPP) and the former's aim is, besides a good tracking of the reference signal generated by P&O algorithm, the rejection of disturbances coming from changes in the environment. As a tool for system analysis and controller design, it is proposed state space modeling for this problem. By means of simulation, the performance of the solution is illustrated the control system enables the operation, at every moment, at the maximum power point, showing robustness to changes in irradiance and variations of battery voltage.","PeriodicalId":330140,"journal":{"name":"2012 IEEE International Symposium on Alternative Energies and Energy Quality (SIFAE)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116361966","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
Economic dispatch of renewable power generators in a microgrid 微电网中可再生能源发电机的经济调度
2012 IEEE International Symposium on Alternative Energies and Energy Quality (SIFAE) Pub Date : 2012-10-01 DOI: 10.1109/SIFAE.2012.6478891
Lised Katherine Chaves Acosta, Jonathan Villota Revelo, Darío Fernando Fajardo Fajardo, Andrés Darío Pantoja Bucheli
{"title":"Economic dispatch of renewable power generators in a microgrid","authors":"Lised Katherine Chaves Acosta, Jonathan Villota Revelo, Darío Fernando Fajardo Fajardo, Andrés Darío Pantoja Bucheli","doi":"10.1109/SIFAE.2012.6478891","DOIUrl":"https://doi.org/10.1109/SIFAE.2012.6478891","url":null,"abstract":"The improvement of new energy generation technologies has supported the usage of renewable alternative sources in a distributed way based on an information structure known as a Smart Grid. In this work, we explore the applicability of the distributed generation concept in a small city with renewable energy provided by biomass and small hydro plants in a microgrid configuration. The management of the generators is performed with in an economic dispatch framework with modified metaheuristic optimization algorithms.","PeriodicalId":330140,"journal":{"name":"2012 IEEE International Symposium on Alternative Energies and Energy Quality (SIFAE)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129708414","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
Tallow biodiesel as alternative fuel for stationary diesel engines 油脂生物柴油作为固定式柴油机的替代燃料
2012 IEEE International Symposium on Alternative Energies and Energy Quality (SIFAE) Pub Date : 2012-10-01 DOI: 10.1109/SIFAE.2012.6478911
A. Valverde, M. Hernández, M. Olaya
{"title":"Tallow biodiesel as alternative fuel for stationary diesel engines","authors":"A. Valverde, M. Hernández, M. Olaya","doi":"10.1109/SIFAE.2012.6478911","DOIUrl":"https://doi.org/10.1109/SIFAE.2012.6478911","url":null,"abstract":"In this paper we study the characterization of beef tallow; the production of biodiesel and biodiesel blends diesel. Beef tallow is characterized in terms of calorific value, moisture content, impurities, density, cloud point, pH and acid value. In the production of biodiesel is working the variables reaction temperature, reaction time and molar ratio alcohol, fat, being obtained as an optimum reaction temperature of 70 °C, reaction time of 3 hours and molar ratio of fatty alcohol, 09:01. Biodiesel blends are made from tallow and palm diesel and they test a power plant marks lister and evaluated as effective parameter, specific fuel consumption and environmental parameters in the opacity, the concentrations of CO2, SO2 and NO.","PeriodicalId":330140,"journal":{"name":"2012 IEEE International Symposium on Alternative Energies and Energy Quality (SIFAE)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128933291","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
Low voltage grid-connected photovoltaic system laboratory at the Universidad Distrital Francisco José de Caldas 位于Francisco josise de Caldas大学的低压并网光伏系统实验室
2012 IEEE International Symposium on Alternative Energies and Energy Quality (SIFAE) Pub Date : 2012-10-01 DOI: 10.1109/SIFAE.2012.6478902
Alejandra Feo, A. Delgado, S. Botía, J. Hernández
{"title":"Low voltage grid-connected photovoltaic system laboratory at the Universidad Distrital Francisco José de Caldas","authors":"Alejandra Feo, A. Delgado, S. Botía, J. Hernández","doi":"10.1109/SIFAE.2012.6478902","DOIUrl":"https://doi.org/10.1109/SIFAE.2012.6478902","url":null,"abstract":"This work aims to explain the measurement that was made of a PV grid connected system, which was a project implemented at “Universidad Distrital Francisco Jose de Caldas” in Bogotá D.C., consisting of two photovoltaic solar modules of 120 watts peak used as a generator, grid-connected three-phase low voltage by an inverter of 190 watts of nominal power by an inverter of 190 watts of nominal power. For the measurement of electrical energy has two four-wire three phase electronic meters, the first at the inverter output to record the energy generated by the generator, and the second for interaction between the grid and the load, in addition to therefore has a system of protection provided to respond to any system failure and a bank ready for testing loads and for analyzing energy flows in the system.","PeriodicalId":330140,"journal":{"name":"2012 IEEE International Symposium on Alternative Energies and Energy Quality (SIFAE)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121274159","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
Characterization of the solar resource for ten cities in Colombia 哥伦比亚十个城市太阳能资源特征分析
2012 IEEE International Symposium on Alternative Energies and Energy Quality (SIFAE) Pub Date : 2012-10-01 DOI: 10.1109/SIFAE.2012.6478883
D. Montenegro, G. Ramos, W. Vallejo
{"title":"Characterization of the solar resource for ten cities in Colombia","authors":"D. Montenegro, G. Ramos, W. Vallejo","doi":"10.1109/SIFAE.2012.6478883","DOIUrl":"https://doi.org/10.1109/SIFAE.2012.6478883","url":null,"abstract":"The quality of service indicators in distribution networks represents a main concern in the power industry nowadays, and the power quality measurements (PQ) are an important part to obtain these indicators. When a PQ disturbance is detected and measured it has to be characterized to obtain the parametric data related with it; this way, it can be classified according to international standards. To make the characterization process it has been relevant the use of digital signal processing techniques like digital filtering and shifting functions. In this paper digital filters, cancelation filters and delay functions are proposed to characterize PQ disturbances. The results suggest that the developed algorithms can be easily implemented in field instruments due to their simplicity and low computational effort required for his operation. All he developments were made using National Instruments LabVIEW® and conventional PC architectures.","PeriodicalId":330140,"journal":{"name":"2012 IEEE International Symposium on Alternative Energies and Energy Quality (SIFAE)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123549102","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 prototype for endogenous drying wood by radio frequency (RF) 内源性木材射频干燥实验样机
2012 IEEE International Symposium on Alternative Energies and Energy Quality (SIFAE) Pub Date : 2012-10-01 DOI: 10.1109/SIFAE.2012.6478895
M. Granada, W. Ferney
{"title":"Experimental prototype for endogenous drying wood by radio frequency (RF)","authors":"M. Granada, W. Ferney","doi":"10.1109/SIFAE.2012.6478895","DOIUrl":"https://doi.org/10.1109/SIFAE.2012.6478895","url":null,"abstract":"This project consolidates around the design and implementation of a prototype for wood drying experimentation; based on a medium power RF circuit coupled to a drying platform it looks for to validate the endogenic heating phenomena by dielectric means. As it was conceived for research purposes, it is rugged enough and it has the proper protected for user safety and technical endurance; due to these considerations, vacuum tubes were used in the design and exposure to RF radiation is time controlled as well, including manual and automatic operation. This opens the gap for future research around energy efficiency, quality and operation of this type dielectric drying vs. conventional drying methods timber.","PeriodicalId":330140,"journal":{"name":"2012 IEEE International Symposium on Alternative Energies and Energy Quality (SIFAE)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126648950","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
Towards optimal investment portfolio management wih hierarhical contol for energy markets 面向能源市场分层控制的最优投资组合管理
2012 IEEE International Symposium on Alternative Energies and Energy Quality (SIFAE) Pub Date : 2012-10-01 DOI: 10.1109/sifae.2012.6478913
P. Deossa, A. Márquez, J. Espinosa
{"title":"Towards optimal investment portfolio management wih hierarhical contol for energy markets","authors":"P. Deossa, A. Márquez, J. Espinosa","doi":"10.1109/sifae.2012.6478913","DOIUrl":"https://doi.org/10.1109/sifae.2012.6478913","url":null,"abstract":"As a consequence of the new trends given by the smart grids, the network electricity infrastructure will change, and with this changes, the energy markets will have more variables and complexity. So new portfolio management strategies are needled. In this paper an optimal investment portfolio management strategy is proposed, based on Model Predictive Control and Hierarchical Control techniques, used to solve the multi period problem used to optimize an investment protfolio.","PeriodicalId":330140,"journal":{"name":"2012 IEEE International Symposium on Alternative Energies and Energy Quality (SIFAE)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114249785","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
Illumination benefits using LED high brightness bulb compare to traditional illumination systems 与传统照明系统相比，使用LED高亮度灯泡的照明优势
2012 IEEE International Symposium on Alternative Energies and Energy Quality (SIFAE) Pub Date : 2012-10-01 DOI: 10.1109/SIFAE.2012.6478898
H. A. Macias, Y. Ulianov, Y. Ramos
{"title":"Illumination benefits using LED high brightness bulb compare to traditional illumination systems","authors":"H. A. Macias, Y. Ulianov, Y. Ramos","doi":"10.1109/SIFAE.2012.6478898","DOIUrl":"https://doi.org/10.1109/SIFAE.2012.6478898","url":null,"abstract":"In this article, a new kind of led emitter diode is used. The HB-LED (High Brightness Light Emitter Diode), were selected and tested and the results compared with existing light sources used in the Universidad Autónoma de Occidente. Results shows better visual perception of space and great energy savings between 41% and 73% of power consumption compared with actual technology such as high pressure sodium bulbs and energy saving light bulb. The usage of HB-LED reduce the cost of solar systems used as power sources of illumination.","PeriodicalId":330140,"journal":{"name":"2012 IEEE International Symposium on Alternative Energies and Energy Quality (SIFAE)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117194604","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: 8
Methodology to assess the influence of PV systems as a distributed generation technology 评估光伏系统作为分布式发电技术影响的方法
2012 IEEE International Symposium on Alternative Energies and Energy Quality (SIFAE) Pub Date : 2012-10-01 DOI: 10.1109/SIFAE.2012.6478903
L. Osorio, S. Patino, J. Hernández
{"title":"Methodology to assess the influence of PV systems as a distributed generation technology","authors":"L. Osorio, S. Patino, J. Hernández","doi":"10.1109/SIFAE.2012.6478903","DOIUrl":"https://doi.org/10.1109/SIFAE.2012.6478903","url":null,"abstract":"This paper shows a simplified methodology for assess the impacts of photovoltaic systems connected to a supply of low voltage distribution power system, analyzing voltage variations outside the limits according to the NTC 1340, the chargeability and losses through a development software implemented in DIgSILENT®. The development includes the characterization of solar resource and ambient temperature to estimate the generation of the photovoltaic system, with this procedure it can find an optimum rate of penetration PV on the electric network under two scenarios: first, a circuit located for residential loads and second, a commercial circuit, both in the city of Bogotá, Colombia.","PeriodicalId":330140,"journal":{"name":"2012 IEEE International Symposium on Alternative Energies and Energy Quality (SIFAE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132358835","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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