2018 2nd International Conference on Power, Energy and Environment: Towards Smart Technology (ICEPE)最新文献_第10页

An Electrode Model to Ascertain the Effects of Voltage and Tip Radius with Gap Distance on Electric Field of Transformer Oil 确定电压和针尖半径随间隙距离对变压器油电场影响的电极模型

2018 2nd International Conference on Power, Energy and Environment: Towards Smart Technology (ICEPE) Pub Date : 2018-06-01 DOI: 10.1109/EPETSG.2018.8658753

Niharika Baruah, Mrutyunjay Maharana, S. K. Nayak

{"title":"An Electrode Model to Ascertain the Effects of Voltage and Tip Radius with Gap Distance on Electric Field of Transformer Oil","authors":"Niharika Baruah, Mrutyunjay Maharana, S. K. Nayak","doi":"10.1109/EPETSG.2018.8658753","DOIUrl":"https://doi.org/10.1109/EPETSG.2018.8658753","url":null,"abstract":"Dielectric liquids are a major part of the insulation system in high voltage equipment like the transformer. The reliability of the liquid is very much critical for proper operation of the power apparatus. With the increase in electrical stress, the oil begins to ionize and a streamer develops. In due course, the growing streamer causes an electric breakdown. These streamer discharges are not desirable as they ruin the life of the insulation system. In this paper, a 2D COMSOL Multiphysics electrode model is proposed for streamer formation with needle-plane geometry with a different tip radius of the needle. A needle tip is considered so as to replicate any impurity present in the oil. The method of Finite element analysis (FEA) is applied for discretization of the COMSOL model. This analysis helps to understand the effect of variation of the electric field along the axial length of the geometry considering changing tip radius of the needle. For the simulation study, various voltage levels are used and the distance between the needle and the plane is also changed in steps of 5mm, from 15mm to 30mm. The simulation results show that higher electric field magnitude is obtained with smaller needle tip radius. The higher the field magnitude, lower is the voltage required to initiate streamer. As the applied voltage increases, the magnitude of electric field also increases. It is inferred that for the development of discharges in the transformer oil, the needle with lower radius is the suitable as the electric field produced from such surfaces is very high, which produces streamers at low voltages. A comparative study of the simulation results is done for varying voltage levels and tip radius at different gap distances to understand the mechanism behind the streamer formation.","PeriodicalId":385912,"journal":{"name":"2018 2nd International Conference on Power, Energy and Environment: Towards Smart Technology (ICEPE)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123217735","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

Electrical and Thermal Modelling to Evaluate Photovoltaic Module Performance in Varying Outdoor Condition 在不同室外条件下评估光伏组件性能的电学和热建模

2018 2nd International Conference on Power, Energy and Environment: Towards Smart Technology (ICEPE) Pub Date : 2018-06-01 DOI: 10.1109/EPETSG.2018.8659221

H. Brahma, Labanya Baruah, N. Sarmah

引用次数: 1

Second Order SMC Controller Design for Rotary Inverted Pendulum: An Underactuated System 旋转倒立摆的二阶SMC控制器设计:欠驱动系统

2018 2nd International Conference on Power, Energy and Environment: Towards Smart Technology (ICEPE) Pub Date : 2018-06-01 DOI: 10.1109/EPETSG.2018.8658369

Dhananjay Srivastava, Sandeep Sharma, Keyurkumar Patel, A. Mehta

引用次数: 0

Comparative Analysis of DC-DC Converter Topologies and MPPT Techniques Used in SPV Based Water Pumping System Using BLDC Motor 基于SPV的无刷直流电机水泵系统中DC-DC变换器拓扑结构与MPPT技术的比较分析

2018 2nd International Conference on Power, Energy and Environment: Towards Smart Technology (ICEPE) Pub Date : 2018-06-01 DOI: 10.1109/EPETSG.2018.8658498

Manish Kumar, Md. Nishat Anwar, Anand Kumar

引用次数: 1

Magnetic Levitation System Control Strategy Based on Backstepping Technique to Design Sliding Mode Controller 基于反步法设计滑模控制器的磁悬浮系统控制策略

2018 2nd International Conference on Power, Energy and Environment: Towards Smart Technology (ICEPE) Pub Date : 2018-06-01 DOI: 10.1109/EPETSG.2018.8658598

Writuparna Saikia, Arobindra Saikia

引用次数: 0

Improvement in Performance of Induction Heating System Using Direct AC-AC Boost Converter 直接交流升压变换器对感应加热系统性能的改善

2018 2nd International Conference on Power, Energy and Environment: Towards Smart Technology (ICEPE) Pub Date : 2018-06-01 DOI: 10.1109/EPETSG.2018.8658690

Anand Kumar, R. Raman, Debayan Sarkar, P. Sadhu, A. Banerjee

引用次数: 2

Impact of Load and Wind Uncertainties on Capacity Factor of Thermal Generators 负荷和风的不确定性对火电机组容量系数的影响

2018 2nd International Conference on Power, Energy and Environment: Towards Smart Technology (ICEPE) Pub Date : 2018-06-01 DOI: 10.1109/EPETSG.2018.8658495

Rajat Kanti Samal, M. Tripathy

引用次数: 1

Numerical Analysis of Solar Triangular Air Duct with Conical Turbulators 锥形湍流体太阳能三角风管的数值分析

2018 2nd International Conference on Power, Energy and Environment: Towards Smart Technology (ICEPE) Pub Date : 2018-06-01 DOI: 10.1109/EPETSG.2018.8659188

Parag Jyoti Bezbaruah, R. S. Das, B. Sarkar

{"title":"Numerical Analysis of Solar Triangular Air Duct with Conical Turbulators","authors":"Parag Jyoti Bezbaruah, R. S. Das, B. Sarkar","doi":"10.1109/EPETSG.2018.8659188","DOIUrl":"https://doi.org/10.1109/EPETSG.2018.8659188","url":null,"abstract":"Solar air heater is a device that converts incoming solar radiation into usable heat energy. But its low heat transfer coefficient is a constraint attached to its widespread use. Disturbance or roughness on the absorber plate creates turbulence in the fluid flow which results in the increase of heat transfer coefficient. In the past, such kinds of investigations have been carried out with different roughness shapes in different shape of ducts. In this paper, a numerical investigation is conducted on a solar triangular air duct with conical protrusion turbulators for a relevant range of Reynolds number and wide geometrical parameters. Commercially available ANSYS FLUENT 18.1 is used to numerically simulate the 3D model of triangular duct with conical turbulators. The SST k-ω model is employed to solve the turbulent flow governing equations as it is found to have good agreement with the empirical formula for flat plate collector. Effect of roughness height, e=0.8-1.7 mm and roughness pitch, P=10-18 mm on dimensionless performance parameters of solar air collector is observed at a wide range of Reynolds number, Re=3000-18000. Sixteen different geometrical configurations are considered for overall investigation. Optimum geometrical configuration of conical turbulators is evaluated.","PeriodicalId":385912,"journal":{"name":"2018 2nd International Conference on Power, Energy and Environment: Towards Smart Technology (ICEPE)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128798163","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

Design and Analysis of EMI and RFI Suppressor for Induction Heating Equipment Using Vienna Rectifier 采用维也纳整流器的感应加热设备EMI和RFI抑制器的设计与分析

2018 2nd International Conference on Power, Energy and Environment: Towards Smart Technology (ICEPE) Pub Date : 2018-06-01 DOI: 10.1109/EPETSG.2018.8658871

R. Raman, Paromita Sadhu, Anand Kumar, P. Sadhu

引用次数: 3

Comprehensive Evaluation of Renewable and Conventional Electric Utility of India Under Noncooperative and Cooperative Environment 非合作与合作环境下印度可再生能源与常规电力综合评价

2018 2nd International Conference on Power, Energy and Environment: Towards Smart Technology (ICEPE) Pub Date : 2018-06-01 DOI: 10.1109/EPETSG.2018.8658646

S. Singhal, B. Rawat, H. Gupta

{"title":"Comprehensive Evaluation of Renewable and Conventional Electric Utility of India Under Noncooperative and Cooperative Environment","authors":"S. Singhal, B. Rawat, H. Gupta","doi":"10.1109/EPETSG.2018.8658646","DOIUrl":"https://doi.org/10.1109/EPETSG.2018.8658646","url":null,"abstract":"This work evaluates the performance of renewable and conventional energy power corporations of India using DEA. The analysis has been carried out based on both self and peer evaluation DEA models. Self-evaluation model reveals that only 7 out of 17 DMUs are CCR efficient. It has also been observed that amongst these fully efficient DMUs, 60% are government funded electric utilities. Performance of several private corporations is sub-optimal, suggesting the potential for operation and maintenance cost reductions. In order to study the performance of renewable energy power plants, appropriate parameters have been chosen from the data set and results reveal that 75% of the renewable energy generation plants have efficiency score greater than 0.75. Peer evaluation of the DMUs provides the basis for ranking based on the cross efficiency score. Aggressive and Benevolent models are used to study the performance of the DMUs under non-cooperative and cooperative conditions. Then the electric utilities that generate renewable energy are found to either maintain or improve their ranking under aggressive conditions.","PeriodicalId":385912,"journal":{"name":"2018 2nd International Conference on Power, Energy and Environment: Towards Smart Technology (ICEPE)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121850982","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