Pub Date : 2017-02-20DOI: 10.1109/ceee.2015.7428298
M. Sheikh, M. S. Hossain, R. Hossain
As wind power is the fastest growing renewable energy, it is essential to determine problems associated with maintaining a stable power system when it is connected to grid. In this article a simple strategy is described to stabilize a grid-connected wind farm by controlling reactive power and minimizing voltage fluctuation using a simple 6-pulse Static Synchronous Compensator (STATCOM). The STATCOM is controlled by using voltage control loop with PI controller and Pulse Width Modulation with carrier frequency of 9 times fundamental and varying dc voltage. This paper also presents a comparative study of stabilizing a wind farm using this STATCOM or using only a capacitor bank during wind speed change. Simulation results show that the wind farm could be more effectively stabilized by using STATCOM. The choice of this study is justified by simulation in PSCAD/EMTDC program.
{"title":"Stability enhancement of a grid connected wind farm by using STATCOM","authors":"M. Sheikh, M. S. Hossain, R. Hossain","doi":"10.1109/ceee.2015.7428298","DOIUrl":"https://doi.org/10.1109/ceee.2015.7428298","url":null,"abstract":"As wind power is the fastest growing renewable energy, it is essential to determine problems associated with maintaining a stable power system when it is connected to grid. In this article a simple strategy is described to stabilize a grid-connected wind farm by controlling reactive power and minimizing voltage fluctuation using a simple 6-pulse Static Synchronous Compensator (STATCOM). The STATCOM is controlled by using voltage control loop with PI controller and Pulse Width Modulation with carrier frequency of 9 times fundamental and varying dc voltage. This paper also presents a comparative study of stabilizing a wind farm using this STATCOM or using only a capacitor bank during wind speed change. Simulation results show that the wind farm could be more effectively stabilized by using STATCOM. The choice of this study is justified by simulation in PSCAD/EMTDC program.","PeriodicalId":6490,"journal":{"name":"2015 International Conference on Electrical & Electronic Engineering (ICEEE)","volume":"21 1","pages":"81-84"},"PeriodicalIF":0.0,"publicationDate":"2017-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85058849","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}
Pub Date : 2015-11-01DOI: 10.1109/CEEE.2015.7428276
M. S. Hossain, M. Rashid, M. R. Islam, M. Ali
Array imperfections are known to be a leading cause of performance deprivation for a broadband smart antenna array system. Directional constraints are imposed on the weights of an antenna array to obtain solutions of some constrained beamforming problems. For broadband antenna arrays, formulation of a constrained beamforming problem typically requires presteering the array using steering delays. These delays create implementation problems and cause loss of system performance in the presence of array imperfections. This paper presents new kind of constraints referred to as convolution constraints with robust diagonal loading techniques, which are easy to implement and eliminate the need for presteering delays. The simulation results show that the proposed processor has better performance than the existing processor to steer the main beam at any arbitrary direction without using presteering delays.
{"title":"Convolution constrained robust beamforming techniques for broadband microphone array","authors":"M. S. Hossain, M. Rashid, M. R. Islam, M. Ali","doi":"10.1109/CEEE.2015.7428276","DOIUrl":"https://doi.org/10.1109/CEEE.2015.7428276","url":null,"abstract":"Array imperfections are known to be a leading cause of performance deprivation for a broadband smart antenna array system. Directional constraints are imposed on the weights of an antenna array to obtain solutions of some constrained beamforming problems. For broadband antenna arrays, formulation of a constrained beamforming problem typically requires presteering the array using steering delays. These delays create implementation problems and cause loss of system performance in the presence of array imperfections. This paper presents new kind of constraints referred to as convolution constraints with robust diagonal loading techniques, which are easy to implement and eliminate the need for presteering delays. The simulation results show that the proposed processor has better performance than the existing processor to steer the main beam at any arbitrary direction without using presteering delays.","PeriodicalId":6490,"journal":{"name":"2015 International Conference on Electrical & Electronic Engineering (ICEEE)","volume":"57 1","pages":"277-280"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73948217","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}
Pub Date : 2015-11-01DOI: 10.1109/CEEE.2015.7428266
Swadesh Poddar, Sunanda Roy, Sourav Roy, M. Hasan
A dual triangular cut resonator (DTCR) design of a patch antenna is proposed. The antenna is able to perform at 2.44 GHz band applicable for wireless local area networks. The gain and directivity are 7.75 dB and 8.29 dBi, respectively. Proposed cut resonator develops stored capacitive charge and boosts the antenna radiation and electromagnetic field which enhances the antenna performance.
{"title":"A dual triangular cut resonator patch antenna for WLAN applications","authors":"Swadesh Poddar, Sunanda Roy, Sourav Roy, M. Hasan","doi":"10.1109/CEEE.2015.7428266","DOIUrl":"https://doi.org/10.1109/CEEE.2015.7428266","url":null,"abstract":"A dual triangular cut resonator (DTCR) design of a patch antenna is proposed. The antenna is able to perform at 2.44 GHz band applicable for wireless local area networks. The gain and directivity are 7.75 dB and 8.29 dBi, respectively. Proposed cut resonator develops stored capacitive charge and boosts the antenna radiation and electromagnetic field which enhances the antenna performance.","PeriodicalId":6490,"journal":{"name":"2015 International Conference on Electrical & Electronic Engineering (ICEEE)","volume":"44 1","pages":"237-240"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76152140","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}
Pub Date : 2015-11-01DOI: 10.1109/CEEE.2015.7428290
M. B. Hossain, M. S. Muktadhir, M. Rana
This paper addresses a competent approach to obtain a computational model and a simulation fashion of graphene surface conductivity using sub-cell (SC) framework in the finite-difference time-domain (FDTD) method that incorporate to macroscopic and microscopic contributions. The FDTD update equations of graphene macroscopic and microscopic surface conductivity for dispersive sub-layer inside the Yee's cell are developed. Mathematical identity, numerical results and model expression are presented of the proposed approach.
{"title":"Modeling graphene macroscopic and microscopic conductivity in the sub-cell FDTD method","authors":"M. B. Hossain, M. S. Muktadhir, M. Rana","doi":"10.1109/CEEE.2015.7428290","DOIUrl":"https://doi.org/10.1109/CEEE.2015.7428290","url":null,"abstract":"This paper addresses a competent approach to obtain a computational model and a simulation fashion of graphene surface conductivity using sub-cell (SC) framework in the finite-difference time-domain (FDTD) method that incorporate to macroscopic and microscopic contributions. The FDTD update equations of graphene macroscopic and microscopic surface conductivity for dispersive sub-layer inside the Yee's cell are developed. Mathematical identity, numerical results and model expression are presented of the proposed approach.","PeriodicalId":6490,"journal":{"name":"2015 International Conference on Electrical & Electronic Engineering (ICEEE)","volume":"64 1","pages":"53-56"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81282486","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}
Pub Date : 2015-11-01DOI: 10.1109/CEEE.2015.7428236
K. N. Faisal, Md. Zahurul Islam Sarkar, R. Sultana
In this paper, we compare the performance of linear receivers such as maximum-ratio combining (MRC), zero-forcing (ZF) and minimum mean-square error (MMSE) receivers in enhancing security of cellular multiple-input multiple-output (MIMO) interference networks. At first, we derive the expressions of secrecy spectral efficiency considering finite number of antennas at the MRC, ZF and MMSE receivers. Then, we consider the case when the number of antennas at the receivers tends to infinite and reduce the expressions of secrecy spectral efficiency. Finally, we compare the performance of MRC, ZF and MMSE receivers in enhancing security of cellular MIMO interference networks with different number of antennas at the receivers. Our results show that the performance of MRC receiver is worse than ZF and MMSE receivers. Moreover, the use of moderately large antenna arrays can enhance the secrecy spectral efficiency compared to the single antenna system.
{"title":"Security in cellular MIMO interference networks with linear receivers","authors":"K. N. Faisal, Md. Zahurul Islam Sarkar, R. Sultana","doi":"10.1109/CEEE.2015.7428236","DOIUrl":"https://doi.org/10.1109/CEEE.2015.7428236","url":null,"abstract":"In this paper, we compare the performance of linear receivers such as maximum-ratio combining (MRC), zero-forcing (ZF) and minimum mean-square error (MMSE) receivers in enhancing security of cellular multiple-input multiple-output (MIMO) interference networks. At first, we derive the expressions of secrecy spectral efficiency considering finite number of antennas at the MRC, ZF and MMSE receivers. Then, we consider the case when the number of antennas at the receivers tends to infinite and reduce the expressions of secrecy spectral efficiency. Finally, we compare the performance of MRC, ZF and MMSE receivers in enhancing security of cellular MIMO interference networks with different number of antennas at the receivers. Our results show that the performance of MRC receiver is worse than ZF and MMSE receivers. Moreover, the use of moderately large antenna arrays can enhance the secrecy spectral efficiency compared to the single antenna system.","PeriodicalId":6490,"journal":{"name":"2015 International Conference on Electrical & Electronic Engineering (ICEEE)","volume":"331 1","pages":"129-132"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77141258","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}
Pub Date : 2015-11-01DOI: 10.1109/CEEE.2015.7428227
Abdullah-Al-Nahid, Yinan Kong, Md. Nazmul Hasan
Different features of an image are relevant for different applications. Among the different features as edges which have been analyzed and investigated intensely. Of different edge detection methods, Canny's edge detection method is a pioneer in the edge detection field. However implementing all the steps of the Canny edge detection method in hardware is quite complex. In this paper we have modified two threshold Algorithms. We have also analysed Canny's method with and without incorporating the Hysteresis Linking step, and we have tried to investigate the performance of Canny's method incorporating two modified threshold algorithms.
{"title":"Performance analysis of Canny's edge detection method for modified threshold algorithms","authors":"Abdullah-Al-Nahid, Yinan Kong, Md. Nazmul Hasan","doi":"10.1109/CEEE.2015.7428227","DOIUrl":"https://doi.org/10.1109/CEEE.2015.7428227","url":null,"abstract":"Different features of an image are relevant for different applications. Among the different features as edges which have been analyzed and investigated intensely. Of different edge detection methods, Canny's edge detection method is a pioneer in the edge detection field. However implementing all the steps of the Canny edge detection method in hardware is quite complex. In this paper we have modified two threshold Algorithms. We have also analysed Canny's method with and without incorporating the Hysteresis Linking step, and we have tried to investigate the performance of Canny's method incorporating two modified threshold algorithms.","PeriodicalId":6490,"journal":{"name":"2015 International Conference on Electrical & Electronic Engineering (ICEEE)","volume":"22 1","pages":"93-96"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85713988","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}
Pub Date : 2015-11-01DOI: 10.1109/CEEE.2015.7428253
Punab Chandra Kundu, Md. Rabiul Islam, P. Sarker, S. Majumder
Various types of crosstalk mechanism and their sources for wavelength switch and multi-wavelength selective filters (MWSF) based limited wavelength interchanging optical cross connect (OXC) is identified. Analytical formulas have been carried out to include the effect of that crosstalk. By using the formulas, a comparative picture of the system performance has been depicted for the two types of architectures of limited wavelength interchanging OXC which will help to optimize the system performance. In this paper, system performance has been studied using MATLAB environment.
{"title":"Cross-talk analysis of wavelength switch and MWSF-based limited wavelength interchanging cross-connects (L-WIXC) in a WDM network","authors":"Punab Chandra Kundu, Md. Rabiul Islam, P. Sarker, S. Majumder","doi":"10.1109/CEEE.2015.7428253","DOIUrl":"https://doi.org/10.1109/CEEE.2015.7428253","url":null,"abstract":"Various types of crosstalk mechanism and their sources for wavelength switch and multi-wavelength selective filters (MWSF) based limited wavelength interchanging optical cross connect (OXC) is identified. Analytical formulas have been carried out to include the effect of that crosstalk. By using the formulas, a comparative picture of the system performance has been depicted for the two types of architectures of limited wavelength interchanging OXC which will help to optimize the system performance. In this paper, system performance has been studied using MATLAB environment.","PeriodicalId":6490,"journal":{"name":"2015 International Conference on Electrical & Electronic Engineering (ICEEE)","volume":"125 1","pages":"193-196"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77977878","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}
Pub Date : 2015-11-01DOI: 10.1109/CEEE.2015.7428275
S. C. Mohonta, A. K. Sarkar
Ten repetitive straight drive cricket batting by an amateur batter was recorded in the bat mounted inertial sensors. The sensor recorded centripetal acceleration profiles were tried to match with the profiles obtained by pendulum dynamics imposing the initial and final conditions. During the matching techniques the radius of rotation was varied to obtained high correlation between the two profiles. Then the drives were assessed by the radius of rotation profiles while got satisfactory matching. However, the damping constant for the pendulum dynamics for the drives was chosen constant as the same batter did the straight drives. This research is aimed to incorporate the mathematics in straight drive cricket batting that is still untouched in the literature.
{"title":"Assessment of repetitive straight drive cricket batting using inertial sensor and pendulum dynamics","authors":"S. C. Mohonta, A. K. Sarkar","doi":"10.1109/CEEE.2015.7428275","DOIUrl":"https://doi.org/10.1109/CEEE.2015.7428275","url":null,"abstract":"Ten repetitive straight drive cricket batting by an amateur batter was recorded in the bat mounted inertial sensors. The sensor recorded centripetal acceleration profiles were tried to match with the profiles obtained by pendulum dynamics imposing the initial and final conditions. During the matching techniques the radius of rotation was varied to obtained high correlation between the two profiles. Then the drives were assessed by the radius of rotation profiles while got satisfactory matching. However, the damping constant for the pendulum dynamics for the drives was chosen constant as the same batter did the straight drives. This research is aimed to incorporate the mathematics in straight drive cricket batting that is still untouched in the literature.","PeriodicalId":6490,"journal":{"name":"2015 International Conference on Electrical & Electronic Engineering (ICEEE)","volume":"112 1","pages":"273-276"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82440390","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}
Pub Date : 2015-11-01DOI: 10.1109/CEEE.2015.7428259
M. S. Rana, H. Pota, I. Petersen
In this paper, we first consider the use of a spiral rather than the conventional raster scanning method for improving the imaging performance of an atomic force microscope (AFM). To generate spirals, single-frequency, slowly varying amplitude sine and cosine waves are applied to the X- and Y-piezos, respectively, of the piezoelectric tube scanner (PTS) of an AFM. To demonstrate the performance improvement with the spiral scanning method, a comparison of spiral and raster scanning techniques is presented. In each case, the closed-loop operation is performed using a multi-input multi-output (MIMO) model predictive control (MPC) scheme augmented with a vibration compensator to minimize the tracking error.
{"title":"Relative performance of spiral scan over raster scan in the AFM imaging","authors":"M. S. Rana, H. Pota, I. Petersen","doi":"10.1109/CEEE.2015.7428259","DOIUrl":"https://doi.org/10.1109/CEEE.2015.7428259","url":null,"abstract":"In this paper, we first consider the use of a spiral rather than the conventional raster scanning method for improving the imaging performance of an atomic force microscope (AFM). To generate spirals, single-frequency, slowly varying amplitude sine and cosine waves are applied to the X- and Y-piezos, respectively, of the piezoelectric tube scanner (PTS) of an AFM. To demonstrate the performance improvement with the spiral scanning method, a comparison of spiral and raster scanning techniques is presented. In each case, the closed-loop operation is performed using a multi-input multi-output (MIMO) model predictive control (MPC) scheme augmented with a vibration compensator to minimize the tracking error.","PeriodicalId":6490,"journal":{"name":"2015 International Conference on Electrical & Electronic Engineering (ICEEE)","volume":"21 1","pages":"217-220"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82300767","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}
Pub Date : 2015-11-01DOI: 10.1109/CEEE.2015.7428262
M. Hossain, Shuvro Barua, M. Matin
Electricity being an integral part of modern age technology, is an imperative element for sustainable development. Using fossil fuel for the generation of electricity has been the norm but alarming reasons such as depletion of fossil fuel at an increased pace and their tremendous negative impact on environment have led to growing interest in using renewable resources for generating electricity which can ensure the fulfilment of energy demand both for us and our posterity. This paper has done a pre-feasibility study on a hybrid renewable power system in Nijhum Dwip of Bangladesh which is a detached island from national grid system. The prospect of Solar, Wind and Biomass as renewable components of a hybrid system has been explored with the inclusion of a diesel generator to compare the renewable vs. conventional system both economically and environmentally. Using HOMER the most efficient system was found to have an electricity generation cost of almost BDT 20/kWh for an average load of 5.5 MWh/day with a 950 kW peak. An assessment visit to the island contributed towards load calculation. An emission reduction of almost 3422 ton CO2 by replacing an equivalent diesel based plant with the optimized system is possible to be accomplished.
{"title":"A pre-feasibility study for electrification in Nijhum Dwip using hybrid renewable technology","authors":"M. Hossain, Shuvro Barua, M. Matin","doi":"10.1109/CEEE.2015.7428262","DOIUrl":"https://doi.org/10.1109/CEEE.2015.7428262","url":null,"abstract":"Electricity being an integral part of modern age technology, is an imperative element for sustainable development. Using fossil fuel for the generation of electricity has been the norm but alarming reasons such as depletion of fossil fuel at an increased pace and their tremendous negative impact on environment have led to growing interest in using renewable resources for generating electricity which can ensure the fulfilment of energy demand both for us and our posterity. This paper has done a pre-feasibility study on a hybrid renewable power system in Nijhum Dwip of Bangladesh which is a detached island from national grid system. The prospect of Solar, Wind and Biomass as renewable components of a hybrid system has been explored with the inclusion of a diesel generator to compare the renewable vs. conventional system both economically and environmentally. Using HOMER the most efficient system was found to have an electricity generation cost of almost BDT 20/kWh for an average load of 5.5 MWh/day with a 950 kW peak. An assessment visit to the island contributed towards load calculation. An emission reduction of almost 3422 ton CO2 by replacing an equivalent diesel based plant with the optimized system is possible to be accomplished.","PeriodicalId":6490,"journal":{"name":"2015 International Conference on Electrical & Electronic Engineering (ICEEE)","volume":"7 1","pages":"225-228"},"PeriodicalIF":0.0,"publicationDate":"2015-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78676930","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}
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