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Numerical analysis of CdS:O/CdTe thin film solar cell using Cu2Te BSF layer 采用Cu2Te BSF层的CdS:O/CdTe薄膜太阳能电池的数值分析
2016 9th International Conference on Electrical and Computer Engineering (ICECE) Pub Date : 2016-12-01 DOI: 10.1109/ICECE.2016.7853910
Mohammad Wahidur Rahman, Sheikh Ifatur Rahman, Shafayat Ahmed, M. Hoque
{"title":"Numerical analysis of CdS:O/CdTe thin film solar cell using Cu2Te BSF layer","authors":"Mohammad Wahidur Rahman, Sheikh Ifatur Rahman, Shafayat Ahmed, M. Hoque","doi":"10.1109/ICECE.2016.7853910","DOIUrl":"https://doi.org/10.1109/ICECE.2016.7853910","url":null,"abstract":"In this paper, numerical analysis was done to evaluate the performance of newly modified structure of CdS/CdTe based thin film solar cell. In this proposed cell conventional absorber CdTe layer, back contact Ni was used along with a 500nm thick Cu2Te BSF layer. The viability of ultra-thin CdTe absorber layer was examined together with newly added CdS:O layer instead of conventional CdS layer. It was found that the proposed ultra-thin cell have a conversion efficiency of 24.03% (Voc =0.8033V, Jsc = 34.499mA/cm2, FF = 0.8260) which is more efficient than the conventional CdTe thin film solar cell.","PeriodicalId":122930,"journal":{"name":"2016 9th International Conference on Electrical and Computer Engineering (ICECE)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126599424","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
A compact spectacles shaped patch antenna for UWB applications 一种用于超宽带应用的紧凑型眼镜形贴片天线
2016 9th International Conference on Electrical and Computer Engineering (ICECE) Pub Date : 2016-12-01 DOI: 10.1109/ICECE.2016.7853968
M. T. Islam, M. Samsuzzaman, M. Z. Mahmud, M.T. Islam
{"title":"A compact spectacles shaped patch antenna for UWB applications","authors":"M. T. Islam, M. Samsuzzaman, M. Z. Mahmud, M.T. Islam","doi":"10.1109/ICECE.2016.7853968","DOIUrl":"https://doi.org/10.1109/ICECE.2016.7853968","url":null,"abstract":"In this paper, a new compact spectacles shaped patch UWB antenna using a microstrip fed line is proposed. The new design is consist of a spectacles shaped patch along with tapered slot ground plane.The proposed antenna has a compact electrical dimension of 0.24 λ × 0.21 λ × 0.016 λ and fed with a 50-ohm microstrip transmission line. Computer Simulation Technology (CST) based on finite-difference time-domain method and High Frequency Structural Simulator (HFSS) based on finite element method is implemented in this research. In simulation, a wider frequency bandwidth of 8.5 GHz (3.0 – 11.5 GHz) with excellent impedance matching which covers entire UWB frequency, stable radiation pattern and constant gain is achieved. The proposed antenna is low profile, inexpensive and has excellent characteristics of UWB.","PeriodicalId":122930,"journal":{"name":"2016 9th International Conference on Electrical and Computer Engineering (ICECE)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131811847","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
A single phase SEPIC AC-DC Converter with improved power factor and input current THD 改进功率因数和输入电流THD的单相SEPIC AC-DC变换器
2016 9th International Conference on Electrical and Computer Engineering (ICECE) Pub Date : 2016-12-01 DOI: 10.1109/ICECE.2016.7853934
M. R. T. Hossain, A. H. Abedin, M. A. Choudhury
{"title":"A single phase SEPIC AC-DC Converter with improved power factor and input current THD","authors":"M. R. T. Hossain, A. H. Abedin, M. A. Choudhury","doi":"10.1109/ICECE.2016.7853934","DOIUrl":"https://doi.org/10.1109/ICECE.2016.7853934","url":null,"abstract":"A new topology of single-phase SEPIC (Single Ended Primary Inductor Converter) AC-DC converter with low input current THD and high input power factor is proposed. Instead of using a single phase rectifier followed by a boost DC-DC converter, or using a bridge rectifier with two diodes and two switches, the rectifier's input is chopped at high frequency during positive and negative cycles by a single bi-directional switch to get step-up/step-down AC-DC conversion. Total Harmonic Distortion (THD) of the input current of the proposed circuit with small input current filter is low. Input power factor and the efficiency of conversion of the circuit are high. No additional control is required to achieve the advantages.","PeriodicalId":122930,"journal":{"name":"2016 9th International Conference on Electrical and Computer Engineering (ICECE)","volume":"201 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115715942","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
A coordinated approach for frequency control of zero emission based smart PV-wind-battery power system 基于零排放的智能光伏-风力发电系统频率协调控制方法
2016 9th International Conference on Electrical and Computer Engineering (ICECE) Pub Date : 2016-12-01 DOI: 10.1109/ICECE.2016.7853882
S. Sepasi, A. M. Howlader, E. Reihani, Leon R. Roose
{"title":"A coordinated approach for frequency control of zero emission based smart PV-wind-battery power system","authors":"S. Sepasi, A. M. Howlader, E. Reihani, Leon R. Roose","doi":"10.1109/ICECE.2016.7853882","DOIUrl":"https://doi.org/10.1109/ICECE.2016.7853882","url":null,"abstract":"Power demand of isolated communities or islands primarily relies on heavy oil based diesel generator systems where these fossil fuel based power generators are not only costly but also create adverse effect on the environment. Photovoltaic generator system (PV system), wind energy conversion system (WECS) and battery energy storage system (BESS) are clean sources of alternative energy. These energy sources can be the alternative of diesel generator based power system for an isolated communities such as islands. However, both PV systems and WECSs are uncertain and fluctuating sources of energy causing power fluctuations and frequency deviations. This paper proposes a coordinated approach of the frequency control for a zero emission based small power system with renewable energy penetration. PV system, WECS and BESS have been utilized to control frequency of the proposed zero emission based power system. Efficacy of the proposed frequency control system is shown with simulations results.","PeriodicalId":122930,"journal":{"name":"2016 9th International Conference on Electrical and Computer Engineering (ICECE)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116114401","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: 4
Input switched single phase SEPIC controlled rectifier with improved performances 输入开关单相SEPIC控制整流器性能改进
2016 9th International Conference on Electrical and Computer Engineering (ICECE) Pub Date : 2016-12-01 DOI: 10.1109/ICECE.2016.7853850
Md. Shamsul Arifin, Mohammad Jahangir Alam
{"title":"Input switched single phase SEPIC controlled rectifier with improved performances","authors":"Md. Shamsul Arifin, Mohammad Jahangir Alam","doi":"10.1109/ICECE.2016.7853850","DOIUrl":"https://doi.org/10.1109/ICECE.2016.7853850","url":null,"abstract":"DC power conditioning and processing is an essential challenge now a days. Rectifiers having bridge structures are considered to be nonlinear as they draw non sinusoidal current from line. This distorted current causes several problems related to power quality. In this paper, a new configuration of single phase single switch controlled rectifier using SEPIC topology is proposed. The input current of the proposed configuration is chopped at high frequency using a semiconductor switch to get step up/step down AC to DC conversion, instead of using conventional converters. The proposed circuit is compared with conventional one under same load and operating conditions. The proposed circuit shows better performance i.e. higher power factor at input side and lower distortion (THD) of input current than conventional one. The efficiency of proposed converter is also high. No other control circuitry is required to achieve these advantages.","PeriodicalId":122930,"journal":{"name":"2016 9th International Conference on Electrical and Computer Engineering (ICECE)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122560256","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
A modified PWM technique to improve total harmonic distortion of Multilevel Inverter 改进的PWM技术改善多电平逆变器的总谐波失真
2016 9th International Conference on Electrical and Computer Engineering (ICECE) Pub Date : 2016-12-01 DOI: 10.1109/ICECE.2016.7853970
Shuvankar Podder, M. Biswas, M. R. Khan
{"title":"A modified PWM technique to improve total harmonic distortion of Multilevel Inverter","authors":"Shuvankar Podder, M. Biswas, M. R. Khan","doi":"10.1109/ICECE.2016.7853970","DOIUrl":"https://doi.org/10.1109/ICECE.2016.7853970","url":null,"abstract":"In this study, a modified carrier is proposed to generate PWM gating signal. Proposed PWM method reduces total harmonic distortion (THD) of the output voltage of inverter up to 5.8% than the traditional triangular carrier based PWM. Major harmonic components in output voltage are less in magnitude when proposed PWM technique is applied to inverter. Fundamental component of output voltage is also higher in proposed PWM method for all modulation index and frequency ratio. Performance of proposed modified carrier based PWM is evaluated by MATLAB simulation for single phase 4-cells 9-levels cascaded H-bridge MLI.","PeriodicalId":122930,"journal":{"name":"2016 9th International Conference on Electrical and Computer Engineering (ICECE)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126428786","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: 13
Estimation of optimum tilt angle for PV cell: A study in perspective of Bangladesh 光伏电池最佳倾斜角度的估计:以孟加拉国为例的研究
2016 9th International Conference on Electrical and Computer Engineering (ICECE) Pub Date : 2016-12-01 DOI: 10.1109/ICECE.2016.7853908
M. Nadim, M. Rashed, Anik Muhury, S. M. Mominuzzaman
{"title":"Estimation of optimum tilt angle for PV cell: A study in perspective of Bangladesh","authors":"M. Nadim, M. Rashed, Anik Muhury, S. M. Mominuzzaman","doi":"10.1109/ICECE.2016.7853908","DOIUrl":"https://doi.org/10.1109/ICECE.2016.7853908","url":null,"abstract":"Bangladesh, a subtropical country located not very far from the equator, has certain geographical advantages in solar energy generation. But, as the solar energy generation is not as robust as other forms of energy, the solar systems must be optimally installed to reap every physical benefits possible. One very important factor in this matter is the tilt angle of the solar panel. This paper focuses on finding the optimum tilt angle for a solar panel in a particular region. The paper finds the optimum tilt angles for various divisions of Bangladesh using two methods: one optimum tilt angle for a whole year, and two tilt angles for two halves of a year. The paper demonstrates the benefit of using two seasonal tilt angles instead of using just one tilt angle throughout the year. The paper additionally checks the extent of benefit that might occur from using more complex systems involving more tilt angles.","PeriodicalId":122930,"journal":{"name":"2016 9th International Conference on Electrical and Computer Engineering (ICECE)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129891699","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
An improved color image steganography technique in spatial domain 一种改进的空间域彩色图像隐写技术
2016 9th International Conference on Electrical and Computer Engineering (ICECE) Pub Date : 2016-12-01 DOI: 10.1109/ICECE.2016.7853987
Saikat Mondal, R. Debnath, Borun Kumar Mondal
{"title":"An improved color image steganography technique in spatial domain","authors":"Saikat Mondal, R. Debnath, Borun Kumar Mondal","doi":"10.1109/ICECE.2016.7853987","DOIUrl":"https://doi.org/10.1109/ICECE.2016.7853987","url":null,"abstract":"Steganographic techniques are used to transmit secret information using a carrier file without visibility during communication. In this paper, we proposed an improved RGB image steganographic technique for secured communication between two authorized parties. This technique embeds the information within 2nd to 8th bit position of blue (B) or green (G) component or both of a pixel throughout the blue and green channels; one bit hidden information is placed in one byte. The insertion bit-position is determined by using a hash function, which has a random nature to select the bit position within 2nd to 8th. The method is secure and not vulnerable to intentional attack. The experimental result shows that the high capacity with better peak signal-to-noise (PSNR) ratio is obtained by our proposed method than that of the existing methods.","PeriodicalId":122930,"journal":{"name":"2016 9th International Conference on Electrical and Computer Engineering (ICECE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129912952","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: 9
Ćuk topology based high performance three phase to single phase Switch Mode cycloconverter with V/f motor control Ćuk基于拓扑的高性能三相到单相开关模式环变换器与V/f电机控制
2016 9th International Conference on Electrical and Computer Engineering (ICECE) Pub Date : 2016-12-01 DOI: 10.1109/ICECE.2016.7853912
I. K. Amin, M. Uddin, M. A. Choudhury
{"title":"Ćuk topology based high performance three phase to single phase Switch Mode cycloconverter with V/f motor control","authors":"I. K. Amin, M. Uddin, M. A. Choudhury","doi":"10.1109/ICECE.2016.7853912","DOIUrl":"https://doi.org/10.1109/ICECE.2016.7853912","url":null,"abstract":"In this paper, a high performance Switch Mode Power Supply (SMPS) using a three-phase to single-phase AC cycloconverter is proposed. The proposed SMPS based cycloconverter is implemented using the Ćuk topology, which has higher reliability, low switching losses and thereby increased efficiency as the number of switches is reduced. It also provides means to have high input power factor and low input current Total Harmonic Distortion (THD) with use of simple input and output filter. Incorporation of SMPS topology enables the proposed circuit to operate in either buck or boost voltage mode. The proposed topology ensures high performance by maintaining reduced input current THD (below 10%), improved input power factor (above 0.85), and better efficiency (greater than 85%) as the duty cycle of the PWM control signal is varied for resistive load while the voltage gain is varied between 50% to 150%. The improvement in converter performance is compared with the conventional 12-SCR three to single phase AC cycloconverter. Furthermore, a closed loop control circuit is designed to provide V/f control while the cycloconverter is employed to drive machines with constant flux at low speed. The integration of control circuit provides enhanced reliability and better grip over the output voltage and frequency of the cycloconverter.","PeriodicalId":122930,"journal":{"name":"2016 9th International Conference on Electrical and Computer Engineering (ICECE)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127611021","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
Nonlinear backstepping controller design for a three-phase grid-connected photovoltaic system using DPC approach 基于DPC方法的三相并网光伏系统非线性反步控制器设计
2016 9th International Conference on Electrical and Computer Engineering (ICECE) Pub Date : 2016-12-01 DOI: 10.1109/ICECE.2016.7853943
M. Pervej, T. K. Roy, F. K. Tumpa, M. Sarkar
{"title":"Nonlinear backstepping controller design for a three-phase grid-connected photovoltaic system using DPC approach","authors":"M. Pervej, T. K. Roy, F. K. Tumpa, M. Sarkar","doi":"10.1109/ICECE.2016.7853943","DOIUrl":"https://doi.org/10.1109/ICECE.2016.7853943","url":null,"abstract":"A new direct power control (DPC) approach for a voltage source inverter (VSI) based three-phase grid-connected solar photovoltaic (PV) system is proposed in this paper. The proposed DPC is designed using the nonlinear backstepping control scheme based on the power dynamics rather than the conventional dp current dynamics. As a result, the inner current control loop is eradicated in this paper which simplifies the system modeling and controller design and enhances the transient performance. Conversely, the outer voltage loop is used to generate the active power reference from the closed loop control of the dc-link voltage dynamics. The proposed controller is designed recursively based on the Lyapunov function theory and overall stability of the whole system is confirmed with the formulation of control Lyapunov functions (CLFs) at every design stage of the controller. Finally, the performance of the designed controller is tested on a three-VSI based three-phase grid-connected PV system under different operating conditions. The performance is also compared with an existing controller and it is clear that designed controller can better performance than the existing controller in terms of the total harmonic distortion (THD) of the injected current and quality of power.","PeriodicalId":122930,"journal":{"name":"2016 9th International Conference on Electrical and Computer Engineering (ICECE)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125664793","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: 11
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