2017 6th International Conference on Computer Applications In Electrical Engineering-Recent Advances (CERA)最新文献_第10页

Internal arc fault simulation using CFD to predict thermal behavior in switchgear 利用 CFD 进行内部故障电弧模拟，预测开关设备的热行为

2017 6th International Conference on Computer Applications In Electrical Engineering-Recent Advances (CERA) Pub Date : 2017-10-01 DOI: 10.1109/CERA.2017.8343333

Parkash Kumar, Amol Kale, M. Ranade

{"title":"Internal arc fault simulation using CFD to predict thermal behavior in switchgear","authors":"Parkash Kumar, Amol Kale, M. Ranade","doi":"10.1109/CERA.2017.8343333","DOIUrl":"https://doi.org/10.1109/CERA.2017.8343333","url":null,"abstract":"During an event of internal arc fault in LV/MV switchgears an electrical energy of the order of several Mega-joules is released which should be dissipated in the span of few milliseconds. Major portion of this energy is utilized in the heating of the enclosure gases resulting in the significant pressure rise inside the chamber. Objective of the simulation model developed is to improve design efficiency, increased safety, and especially to minimise real-world testing. Internal arc parameters such as pressure rise in various compartment, exhaust gas temperature, indicator temperature and pressure on panel walls are investigated with CFD simulation methodology. A 3-D CFD simulation of high temperature gases in LV/MV panel is carried out with coupled interactions between flow, temperature, turbulence and radiation fields taken into account. The internal temperature and pressure rise due to internal arc at different locations in breaker, cable and busbar compartment were compared. The same is used further to analyse structural forces and stresses on the panel members. Temperature rise at different locations on indicator walls which are modelled at a distance of 300 mm from panel were estimated from simulation. Visualization of the temperature, pressure and flow field is possible with CFD model.","PeriodicalId":286358,"journal":{"name":"2017 6th International Conference on Computer Applications In Electrical Engineering-Recent Advances (CERA)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128182703","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

A novel hybrid approach using wavelet transform, time series time delay neural network, and error predicting algorithm for day-ahead electricity price forecasting 基于小波变换、时间序列时滞神经网络和误差预测算法的日前电价预测新方法

2017 6th International Conference on Computer Applications In Electrical Engineering-Recent Advances (CERA) Pub Date : 2017-10-01 DOI: 10.1109/CERA.2017.8343326

Abhinav Aggarwal, M. M. Tripathi

{"title":"A novel hybrid approach using wavelet transform, time series time delay neural network, and error predicting algorithm for day-ahead electricity price forecasting","authors":"Abhinav Aggarwal, M. M. Tripathi","doi":"10.1109/CERA.2017.8343326","DOIUrl":"https://doi.org/10.1109/CERA.2017.8343326","url":null,"abstract":"This paper presents a novel hybrid intelligent algorithm to forecast day-ahead electricity prices in the ISO New England market for 2014. The proposed algorithm is consisting of signal processing technique based on wavelet transform (WT), a Time Series Time Delay Artificial Neural Network (TSDNN) based prediction network and an error predicting algorithm (EP) based on TSDNN. A comprehensive comparative analysis using the proposed hybrid model, with the specified data from ISO New England website shows significant improvement in forecast error by more than 71.8% for daily price forecasts. Furthermore, a high degree of accuracy of the proposed model is established due to low values obtained for the root mean square error (RMS) and mean absolute error (MAE). The analysis of the performance of the algorithm using both, standard and new performance parameters-Are done to measure the robustness of the proposed hybrid intelligent model. In addition, the rapid adaptability of the proposed hybrid model is also evaluated using the ISO NE electricity market.","PeriodicalId":286358,"journal":{"name":"2017 6th International Conference on Computer Applications In Electrical Engineering-Recent Advances (CERA)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128220954","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

Alpha-trimmed first order statistics for the classification of liver US images 肝脏超声图像分类的一阶统计量

2017 6th International Conference on Computer Applications In Electrical Engineering-Recent Advances (CERA) Pub Date : 2017-10-01 DOI: 10.1109/CERA.2017.8343358

Nishant Jain, Vinod Kumar

{"title":"Alpha-trimmed first order statistics for the classification of liver US images","authors":"Nishant Jain, Vinod Kumar","doi":"10.1109/CERA.2017.8343358","DOIUrl":"https://doi.org/10.1109/CERA.2017.8343358","url":null,"abstract":"US images are contaminated with speckle noise. To reduce the effect of speckle noise in the extraction of FOS, in this paper it is proposed to remove some of the pixels from both sides of the lower and higher pixel intensities arranged in order of intensity of an image, before the evaluation of FOS features. It is somewhat similar to alpha-trimmed filtering of images and hence in this paper this enhanced FOS method is called as alpha-trimmed FOS. To show the effectiveness of the proposed alpha-trimmed FOS method, features extracted from this method are used for the classification of liver ultrasound images and the classification accuracy obtained is compared with the accuracy obtained using the features extracted from normal FOS method. In the paper performance of proposed method is evaluated using two classifiers (Neural network and SVM). For alpha-trimmed FOS features, best accuracy obtained by neural network is 66.86% which is far better than the classification accuracy of 34.91% obtained with normal FOS features. Classification accuracy obtained by SVM with alpha-trimmed FOS features is 59.76% which is better as compared to accuracy of 53.85% obtained with normal FOS features.","PeriodicalId":286358,"journal":{"name":"2017 6th International Conference on Computer Applications In Electrical Engineering-Recent Advances (CERA)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128639449","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

Voltage and frequency control of a hybrid Wind-Diesel system using SVC and predictively controlled SMES 基于SVC和预测控制SMES的混合动力系统电压和频率控制

2017 6th International Conference on Computer Applications In Electrical Engineering-Recent Advances (CERA) Pub Date : 2017-10-01 DOI: 10.1109/CERA.2017.8343295

M. Y. Zargar, M. Mufti, S. A. Lone

引用次数: 7

Per phase power balancing in grid connected cascaded H-bridge multilevel converter for solar PV application 太阳能光伏并网级联h桥多电平变换器的每相功率平衡

2017 6th International Conference on Computer Applications In Electrical Engineering-Recent Advances (CERA) Pub Date : 2017-10-01 DOI: 10.1109/CERA.2017.8343369

Rahul Sharma, A. Das

{"title":"Per phase power balancing in grid connected cascaded H-bridge multilevel converter for solar PV application","authors":"Rahul Sharma, A. Das","doi":"10.1109/CERA.2017.8343369","DOIUrl":"https://doi.org/10.1109/CERA.2017.8343369","url":null,"abstract":"Three phase power in solar PhotoVoltaic (PV) application is often unbalanced due to non-uniform radiation and temperature level on each cluster solar PV array. This is also true for PV fed cascaded H-bridge (CHB) multilevel converter. Thus the grid current supplied by the converter is unbalanced which is not desirable in balanced grid system. For supplying balanced three phase current, a common mode voltage is added with the pole voltages of CHB converter. It circulates active and reactive power in the phase clusters and allows balanced three phase power to be supplied to the grid. This paper presents a geometrical approach to calculate common mode voltage during unequal power level on three phase cluster. The capacitor voltage balancing of individual cluster and cell are also presented during different power level in the cell. Mathematical derivation of common mode voltage based on unequal phase cluster power are also included in the paper. Phase shifted Sinusoidal Pulse width modulation (SPWM) technique is used to operate the CHB multilevel converter. Simulation results of three phase current balancing during non-uniform radiation are verified using Matlab/Simulink.","PeriodicalId":286358,"journal":{"name":"2017 6th International Conference on Computer Applications In Electrical Engineering-Recent Advances (CERA)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114792869","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

Superimposed positive sequence voltage and current based islanding detection techniques for microgrid 基于叠加正序电压和电流的微电网孤岛检测技术

2017 6th International Conference on Computer Applications In Electrical Engineering-Recent Advances (CERA) Pub Date : 2017-10-01 DOI: 10.1109/CERA.2017.8343341

Abhisek Mishra, P. Jena

引用次数: 2

Fuzzy systems practices for aerodynamic parameter modeling of the aircraft 飞机气动参数建模的模糊系统实践

2017 6th International Conference on Computer Applications In Electrical Engineering-Recent Advances (CERA) Pub Date : 2017-10-01 DOI: 10.1109/CERA.2017.8343374

D. Singh, N. Verma, A. Ghosh, Appasaheb Malagaudanvar

{"title":"Fuzzy systems practices for aerodynamic parameter modeling of the aircraft","authors":"D. Singh, N. Verma, A. Ghosh, Appasaheb Malagaudanvar","doi":"10.1109/CERA.2017.8343374","DOIUrl":"https://doi.org/10.1109/CERA.2017.8343374","url":null,"abstract":"This paper presents an application of fuzzy logic theory for aerodynamic modeling of the fixed wing aircraft. For the demonstration purpose, rolling moment control and stability derivatives of ATAS aircraft are extracted from the recorded flight data of nonlinear flight profile. Fuzzy logic based Takagi Sugeno Kang (TSK) model is used to represent the nonlinear dynamics of the aircraft, which can approximate it into several locally linear models. The method shows its benefit in case when it becomes very difficult to identify the equilibrium points (trim points) due to cross coupling and nonlinear complexities associated with modern aircraft. The grid based Rusipini type fuzzy partitions are used for input spaces and two triangular type membership functions are generated per input from the training data set. The fuzzy rules are extracted based on weighted least square algorithms and each rule corresponds to local linear model for mimicking of aerodynamic (control and stability) derivatives. Fivefold cross validation method is used to access the adequacy of the generated fuzzy model. The parameter tracking trends and mean square error for training and testing data sets show commendable modeling capability of TSK fuzzy model for extraction of aerodynamic derivatives.","PeriodicalId":286358,"journal":{"name":"2017 6th International Conference on Computer Applications In Electrical Engineering-Recent Advances (CERA)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131082840","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

Non-linear gain sixth-order boost converter 非线性增益六阶升压变换器

2017 6th International Conference on Computer Applications In Electrical Engineering-Recent Advances (CERA) Pub Date : 2017-10-01 DOI: 10.1109/CERA.2017.8343365

M. Veerachary

引用次数: 0

Studies on the effect of void geometry and location on electric field distribution and partial discharge in XLPE insulated power cable by finite element analysis using COMSOL multiphysics simulation 利用COMSOL多物理场仿真软件进行有限元分析，研究了空隙几何形状和位置对交联聚乙烯绝缘电力电缆电场分布和局部放电的影响

2017 6th International Conference on Computer Applications In Electrical Engineering-Recent Advances (CERA) Pub Date : 2017-10-01 DOI: 10.1109/CERA.2017.8343330

Sambit Hore, Souryadeep Basak, N. Haque, S. Dalai, M. Mukherjee

{"title":"Studies on the effect of void geometry and location on electric field distribution and partial discharge in XLPE insulated power cable by finite element analysis using COMSOL multiphysics simulation","authors":"Sambit Hore, Souryadeep Basak, N. Haque, S. Dalai, M. Mukherjee","doi":"10.1109/CERA.2017.8343330","DOIUrl":"https://doi.org/10.1109/CERA.2017.8343330","url":null,"abstract":"Presence of partial discharges is a serious issue in the maintenance and condition monitoring of power cables. Under the effect of excess electrical field, the voids present in the insulation may go through breakdown, giving rise to the phenomenon of partial discharges. Repeated occurrence of partial discharges through a long period of time may lead to complete insulation failure. The partial discharge activity is dependent on the applied voltage, shape, size and location of voids and presence of minor protrusions on the conductor surface. In this study, the effect of all these factors was studied using a simulation model based on Finite Element Analysis (FEA) software. Three different void geometries were considered and their effect on partial discharge inception voltage, both in the presence and absence of protrusions, was studied. The location of the voids was also varied in the simulation study. From this work, an improved understanding of partial discharge within power cable insulation as well as its relationship with void geometry and location can be obtained.","PeriodicalId":286358,"journal":{"name":"2017 6th International Conference on Computer Applications In Electrical Engineering-Recent Advances (CERA)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121366309","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: 10

Power quality improvement of grid interfaced solar PV using adaptive line enhancer based control scheme 基于自适应线路增强控制方案的并网太阳能光伏发电电能质量改善

2017 6th International Conference on Computer Applications In Electrical Engineering-Recent Advances (CERA) Pub Date : 2017-10-01 DOI: 10.1109/CERA.2017.8343389

Priyank Shah, Ikhlaq Hussain, Bhim Singh

引用次数: 2