2016 4th International Conference on the Development in the in Renewable Energy Technology (ICDRET)最新文献_第3页

Comparative analysis of carrier schemes for PWM in multilevel PUC inverter for PV applications 光伏多电平PUC逆变器PWM载波方案的比较分析

2016 4th International Conference on the Development in the in Renewable Energy Technology (ICDRET) Pub Date : 2016-02-29 DOI: 10.1109/ICDRET.2016.7421528

M. Tariq, M. T. Iqbal, A. Iqbal, M. Meraj, Muhammad M. Roomi, Md Shafquat Ullah Khan

引用次数: 25

Computational and experimental study of an ultra-low head turbine 超低水头水轮机的计算与试验研究

2016 4th International Conference on the Development in the in Renewable Energy Technology (ICDRET) Pub Date : 2016-02-29 DOI: 10.1109/ICDRET.2016.7421512

Pradeep Parajuli, P. Koirala, N. Pokharel, H. Neopane, S. Chitrakar, R. Maskey

{"title":"Computational and experimental study of an ultra-low head turbine","authors":"Pradeep Parajuli, P. Koirala, N. Pokharel, H. Neopane, S. Chitrakar, R. Maskey","doi":"10.1109/ICDRET.2016.7421512","DOIUrl":"https://doi.org/10.1109/ICDRET.2016.7421512","url":null,"abstract":"As the threat of limited energy has reached its peak, a system that utilizes majority of the unutilized sites to extract energy is demanded. The project work, presented here, aims to propose an efficient system to exploit the low head sites, test and verify the technical feasibility and economical affordability of thus proposed system. The research was carried out to develop ultra-low head turbines that exploits the sites with lower head and lower discharge using only limited hydraulic and mechanical components satisfying the economic viability [1]. Three models were prepared and one was successfully tested to verify the operating principle called \"Static Pressure Difference principle\". Focusing on blade profile, mesh generation CFX package was used to analyze the fluid flow through turbine hub and blade. This approach was carried out on three different turbine models with straight, twisted and curved blade profiles and results were used for efficiency evaluation of each turbines. The simulation result showed curved profile to be best efficient profile than other two with 87.03 % efficiency and well distinguished pressure and suction side within a blade. The produced power was 3 W at rotational speed 12 rpm anticlockwise with torque of 2.45 N-m at the flow rate of 6 l/s. The computational analysis was ensued by scaled model testing in a small irrigation canal with a channel system. The testing showed curved blade turbine model's efficiency of 64.36 % with output power of 2 W at rotational speed of 15 rpm anticlockwise with torque of 1.28 N-m at the flow rate of 6.4 l/s. The head difference was maintained at 5 cm for both type of analysis.","PeriodicalId":365312,"journal":{"name":"2016 4th International Conference on the Development in the in Renewable Energy Technology (ICDRET)","volume":"5 11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130898939","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

Design, construction and implementation of a highly efficient, lightweight and cost effective battery charger for electric easy bikes 设计，建造和实施一个高效，轻便和成本效益的电动自行车电池充电器

2016 4th International Conference on the Development in the in Renewable Energy Technology (ICDRET) Pub Date : 2016-02-29 DOI: 10.1109/ICDRET.2016.7421480

K. M. Salim, Md Jasim Uddin, M. Rahman, Mohammad Rejwan Uddin

引用次数: 15

Modeling of graphene/SiO2/Si(n) based metal-insulator-semiconductor solar cells 石墨烯/SiO2/Si(n)基金属-绝缘体-半导体太阳能电池的建模

2016 4th International Conference on the Development in the in Renewable Energy Technology (ICDRET) Pub Date : 2016-02-29 DOI: 10.1109/ICDRET.2016.7421491

Muhammad Johirul Islam, Md. Mahmudul Hasan, Rifat Sami, Md. Iqbal Bahar Chowdhury

引用次数: 0

Design and economic feasibility analysis of autonomous hybrid energy system for rural Bangladesh 孟加拉国农村自主混合能源系统设计及经济可行性分析

2016 4th International Conference on the Development in the in Renewable Energy Technology (ICDRET) Pub Date : 2016-02-29 DOI: 10.1109/ICDRET.2016.7421503

H. M. Rafeed Leon, M. Asaduzzaman Shoeb, M. Saifur Rahman, M. Ahmed, Md Sadiqul Islam

引用次数: 6

Prediction of solar irradiation in Bangladesh using artificial neural network (ANN) and data mapping using GIS technology 利用人工神经网络(ANN)和地理信息系统(GIS)技术的数据制图预测孟加拉国的太阳辐照

2016 4th International Conference on the Development in the in Renewable Energy Technology (ICDRET) Pub Date : 2016-02-29 DOI: 10.1109/ICDRET.2016.7421482

Khan Md. Rabbi, I. Nandi, A. Saleh, Faiaz Faisal, S. Mojumder

引用次数: 8

Differential evolution algorithm based load frequency control in a two-area conventional and renewable energy based nonlinear power system 基于差分进化算法的两区常规和可再生能源非线性电力系统负荷频率控制

2016 4th International Conference on the Development in the in Renewable Energy Technology (ICDRET) Pub Date : 2016-02-29 DOI: 10.1109/ICDRET.2016.7421476

Muhammad Ahsan Zamee, Kazi Khairul Islam, Ashik Ahmed, Kazi Rehnuma Zafreen

{"title":"Differential evolution algorithm based load frequency control in a two-area conventional and renewable energy based nonlinear power system","authors":"Muhammad Ahsan Zamee, Kazi Khairul Islam, Ashik Ahmed, Kazi Rehnuma Zafreen","doi":"10.1109/ICDRET.2016.7421476","DOIUrl":"https://doi.org/10.1109/ICDRET.2016.7421476","url":null,"abstract":"Load Frequency Control (LFC) for any power generating station is a subject of great concern for power system researchers. With the changes of load demand, frequency starts fluctuating which results in deviation in tie line power flow and frequency deviation at consumer end. To overcome this problem, many control techniques have been adopted. In early days fixed value integral/proportional-integral control, Optimal Control, Quantitative feedback theory, pole placement etc. methods were applied. In recent times, neural network, fuzzy logic, genetic algorithm controllers are replacing the conventional techniques. All the control techniques are used to find the optimal values of the PID/PI controller gain parameters (Kp, Ki, Kd) for which system stability is confirmed with minimum of Area Control Error (ACE). Differential Evolution (DE) which is a newer branch of genetic algorithms has been successfully applied in this problem. In this paper DE based PI controller has been implemented for Hydro-Thermal power plants to find out the optimal value of gain parameters for system stability. Nonlinearity has been considered in governor part of the thermal area for practical scenario. 1% step load changes have been applied to both areas simultaneously and individually to confirm its performance. Desired set of controller gain parameters (Kp, Ki) are selected based on eigenvalue and minimum value of Objective Function. All simulations are done in the MATLAB/SIMULINK environment.","PeriodicalId":365312,"journal":{"name":"2016 4th International Conference on the Development in the in Renewable Energy Technology (ICDRET)","volume":"09 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127310092","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

Modeling of J-V characteristics of CZTS based thin film solar cells including voltage and space dependent electric field in the absorber layer 基于CZTS的薄膜太阳能电池的J-V特性建模，包括吸收层中电压和空间相关的电场

2016 4th International Conference on the Development in the in Renewable Energy Technology (ICDRET) Pub Date : 2016-02-29 DOI: 10.1109/ICDRET.2016.7421486

Ayesha, Kulsum, Shamara Kabir Silvi, Md. Iqbal Bahar Chowdhury

引用次数: 4

100% electrification and renewable based Ethiopian power sector development strategies 100%电气化和基于可再生能源的埃塞俄比亚电力部门发展战略

2016 4th International Conference on the Development in the in Renewable Energy Technology (ICDRET) Pub Date : 2016-02-29 DOI: 10.1109/ICDRET.2016.7421508

Md. Alam Hossain Mondal, E. Bryan, C. Ringler, M. Rosegrant

{"title":"100% electrification and renewable based Ethiopian power sector development strategies","authors":"Md. Alam Hossain Mondal, E. Bryan, C. Ringler, M. Rosegrant","doi":"10.1109/ICDRET.2016.7421508","DOIUrl":"https://doi.org/10.1109/ICDRET.2016.7421508","url":null,"abstract":"This study shows an assessment of future electricity supply policies for Ethiopia. This study also examines opportunities to diversify the energy supply-mix in ways that meet the country's goals of sustainable energy system development and improved energy security, using the MARKAL energy system model. National policies, such as universal electrification, zero carbon emissions and export options are integrated in this modeling work to find the least-cost mix of technologies to meet the country's rising demand for energy given rapid socio-economic development. The model allocates renewable energy technologies (RETs) for electricity production, as their potential is relatively high in Ethiopia. Hydro, Solar PV and wind contribute significantly to improve energy security. The cumulative energy supply costs with RETs is not significantly higher than the base case to meet the policy targets. Alternative policy options show higher investment costs in the near term but have long-term benefits in terms of sustainable energy system development and access to modern sources of energy for all.","PeriodicalId":365312,"journal":{"name":"2016 4th International Conference on the Development in the in Renewable Energy Technology (ICDRET)","volume":"202 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115095476","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

Development and testing of a two-axis tracking spherical solar cooker 两轴跟踪球形太阳灶的研制与试验

2016 4th International Conference on the Development in the in Renewable Energy Technology (ICDRET) Pub Date : 2016-02-29 DOI: 10.1109/ICDRET.2016.7421500

Md Rafsunjani, E. B. Joyee, A. M. Mizanur Rahman

{"title":"Development and testing of a two-axis tracking spherical solar cooker","authors":"Md Rafsunjani, E. B. Joyee, A. M. Mizanur Rahman","doi":"10.1109/ICDRET.2016.7421500","DOIUrl":"https://doi.org/10.1109/ICDRET.2016.7421500","url":null,"abstract":"Solar energy, the clean and non-polluting energy source, has a great potential to supply world's energy needs. It is one of the largest renewable energy resources which is available almost everywhere. There are many fields where solar energy is used such as water & air heating, drying, distillation, cooking etc. But the efficiency of solar systems is less than conventional systems. It might be because of lack of proper technology and high cost to develop efficient system. Solar cooker is a device which is used for cooking food. It is simple, safe and convenient to cook food without consuming conventional fuel. In the previous year a parabolic type spherical solar cooker was designed and constructed. In that cooker, single axis manual tracking was used. In order to improve the efficiency of the cooker, a two axis tracking mechanism was designed and constructed and the cooker was installed on it. But, the motors that were needed for two axis tracking were expensive. So, an alternative manual tracking system was developed that could serve the purpose of facing the collector towards the sun every half an hour. Performance of the cooker has been measured. The maximum temperature inside the cooking pot was found to be 97°C, with a load of 300 g rice and 100 g dal, within 40 minutes at a radiation level of 260-394 W/m2.","PeriodicalId":365312,"journal":{"name":"2016 4th International Conference on the Development in the in Renewable Energy Technology (ICDRET)","volume":"215 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-02-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114041623","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