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2011 IEEE Student Conference on Research and Development最新文献

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Z-Source Inverter based Indirect Field Oriented Control with Synchronous Current Injection and feed-forward CEMF compensation for an induction motor drive 基于z源逆变器的异步电机同步电流注入和前馈CEMF补偿间接定向控制
2011 IEEE Student Conference on Research and Development Pub Date : 2011-12-01 DOI: 10.1109/SCORED.2011.6148705
A. Usman, T. Izhar
{"title":"Z-Source Inverter based Indirect Field Oriented Control with Synchronous Current Injection and feed-forward CEMF compensation for an induction motor drive","authors":"A. Usman, T. Izhar","doi":"10.1109/SCORED.2011.6148705","DOIUrl":"https://doi.org/10.1109/SCORED.2011.6148705","url":null,"abstract":"In this paper, an Impedance Source (Z-Source) Inverter based Indirect Field Oriented Control for a three phase induction motor drive is presented. The Z-Source Inverter consists of traditional switching network along with a unique LC passive symmetrical network between the dc front end and the switching network. The output AC Voltage can be controlled by either controlling the shoot through duty cycle (Dsh) or Modulation Index (M). A feedback control mechanism is proposed for controlling both shoot through duty cycle and the modulation index. Indirect Field Oriented Control strategy is implemented with an added capability of Synchronous Current Injection. It avoids the issues of controller saturation at high speeds as commonly seen in the traditional Hysteresis Band Controller based drives. Feedforward CEMF (Counter Electro-Magnetic Force) compensation is also introduced in the feedback loops of the controller to enhance the overall loop response. Simulation results are used to validate the proposed solution for high speeds.","PeriodicalId":383828,"journal":{"name":"2011 IEEE Student Conference on Research and Development","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126179894","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
Designing a low voltage energy harvesting circuits for rectified storage voltage using vibrating piezoelectric 利用振动压电设计一种整流存储电压的低压能量收集电路
2011 IEEE Student Conference on Research and Development Pub Date : 2011-12-01 DOI: 10.1109/SCORED.2011.6148762
M. Sarker, S. Ali, M. Othman, M. Islam
{"title":"Designing a low voltage energy harvesting circuits for rectified storage voltage using vibrating piezoelectric","authors":"M. Sarker, S. Ali, M. Othman, M. Islam","doi":"10.1109/SCORED.2011.6148762","DOIUrl":"https://doi.org/10.1109/SCORED.2011.6148762","url":null,"abstract":"This paper presents a designing of a low voltage energy harvesting circuits for generating rectified voltage into storage devices using vibrating piezoelectric element. A technique (i.e., DC-DC Step-Down converter) has chosen for designing the low-power circuit with low voltage energy. The proposed method consumes very little power, and is especially suitable for the environments, where ambient harvested power is very low. The energy harvesting circuit consists of diode bridge ac-dc rectifier and an energy storage device with an output capacitor, an electrochemical battery, and a switch-mode dc-dc converter that control the energy flow into the battery. This paper will study results these important issues regarding the efficiencies of the energy harvesting circuits considering the storage device low voltage. For the piezoelectric element model with ac-dc rectifier, storage device and load verified by PSPICE simulation. The results show piezoelectric element model with ac-dc rectifier of 180mV, and load higher efficiency of 85%. Finally, dc-dc (Step-down) converter generates 20mV.","PeriodicalId":383828,"journal":{"name":"2011 IEEE Student Conference on Research and Development","volume":"18 1B 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123664801","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: 17
Reduction of cogging torque of single phase brushless DC motor using flux barrier 利用磁通屏障降低单相无刷直流电动机齿槽转矩
2011 IEEE Student Conference on Research and Development Pub Date : 2011-12-01 DOI: 10.1109/SCORED.2011.6148754
M. Norhisam, Ng Seng Shin, R. N. Firdaus, A.W. Noor Izzri, D. Ahmad, M. Nirei
{"title":"Reduction of cogging torque of single phase brushless DC motor using flux barrier","authors":"M. Norhisam, Ng Seng Shin, R. N. Firdaus, A.W. Noor Izzri, D. Ahmad, M. Nirei","doi":"10.1109/SCORED.2011.6148754","DOIUrl":"https://doi.org/10.1109/SCORED.2011.6148754","url":null,"abstract":"This paper deals with the reduction of cogging torque in a single phase brushless DC motor. The constructional features and operating principles of the developed motor is presented. Reduction of the cogging torque is achieved by the use of slit as flux barrier. By using slit to stable the flux density of the motor, the cogging torque produced by the motor is reduced. Simulation studies to evaluate the aspects of the flux distribution inside the machine and the cogging torque characteristic are presented.","PeriodicalId":383828,"journal":{"name":"2011 IEEE Student Conference on Research and Development","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125352134","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
New secure and low-cost design for defense in depth implementation using open source software 新的安全和低成本的设计，用于使用开源软件的深度防御实现
2011 IEEE Student Conference on Research and Development Pub Date : 2011-12-01 DOI: 10.1109/SCORED.2011.6148781
Seyed Dawood Sajjadi Torshizi, S. Rostampour, Maryam Tanha
{"title":"New secure and low-cost design for defense in depth implementation using open source software","authors":"Seyed Dawood Sajjadi Torshizi, S. Rostampour, Maryam Tanha","doi":"10.1109/SCORED.2011.6148781","DOIUrl":"https://doi.org/10.1109/SCORED.2011.6148781","url":null,"abstract":"In this paper, we propose a new design with high-level security and low-cost implementation for different network topologies. Achieving both factors at the same time is a challenging work for network experts, especially when they want to apply defense in depth strategy in various components of their networks. Offered scenario has been done for one of the most visited web sites in an Iranian organization with more than 15,000 concurrent web users that all of them reliably and smoothly were served. Also, defense in depth strategy has been used to provide sufficient level of security in diverse components of the project. All applied security solutions in this project were based on open source [1] tools that results in saving a tangible cost by the prevention of purchasing commercial options. We will describe project big map, acquired results and all main components with their functions in this paper.","PeriodicalId":383828,"journal":{"name":"2011 IEEE Student Conference on Research and Development","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114428702","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
A modified computational model of ant colony system in DNA sequence design DNA序列设计中蚁群系统的改进计算模型
2011 IEEE Student Conference on Research and Development Pub Date : 2011-12-01 DOI: 10.1109/SCORED.2011.6148729
S. M. Mustaza, Amar Faiz Zainal Abidin, Z. Ibrahim, M. A. Shamsudin, A. R. Husain, Jameel Mukred
{"title":"A modified computational model of ant colony system in DNA sequence design","authors":"S. M. Mustaza, Amar Faiz Zainal Abidin, Z. Ibrahim, M. A. Shamsudin, A. R. Husain, Jameel Mukred","doi":"10.1109/SCORED.2011.6148729","DOIUrl":"https://doi.org/10.1109/SCORED.2011.6148729","url":null,"abstract":"Many studies have focused in designing a set of good DNA sequences as it is one of the crucial tools in improving the reliability and efficiency of DNA computing. In this paper, an improved model of Ant Colony System is developed in optimizing DNA sequences design. The proposed model suggests that each artificial ant represents a possible solution of the DNA sequences design problem. This differs from the previous Ant Colony System approached where a number of artificial ants are required to represent a possible solution. In the implementation, four objective measures and two constraint measures are employed to obtain a good set of DNA sequences. The performance of the proposed model is evaluated by comparing the result with existing Ant Colony System model and other published sequence design method. The experimental result shows that the proposed Ant Colony System model outperformed the existing Ant Colony System model.","PeriodicalId":383828,"journal":{"name":"2011 IEEE Student Conference on Research and Development","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121748638","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: 16
Development of generator aggregation technique for power system 电力系统发电机聚合技术的发展
2011 IEEE Student Conference on Research and Development Pub Date : 2011-12-01 DOI: 10.1109/SCORED.2011.6148739
A. Shojaei, M. Othman, R. Rahmani, M. Fard
{"title":"Development of generator aggregation technique for power system","authors":"A. Shojaei, M. Othman, R. Rahmani, M. Fard","doi":"10.1109/SCORED.2011.6148739","DOIUrl":"https://doi.org/10.1109/SCORED.2011.6148739","url":null,"abstract":"This paper presents Generator Aggregation which is an important technique in power system analysis. This method relies on faults and variation of voltage in power transmission system. Voltage and frequency will vary when fault occurs in the power system. Fault study can be simplified by using generator aggregation. Inertia aggregation techniques which are based on processing assessment of the fault location in transmission lines are proposed in this paper. The generator aggregation is extracted from the model stability of voltages at the single and multi machines of the power system network. The technique identifies the fault by using the information contained in a simple power system. Three generators and four buses are modeled in this study. This technique is implemented in MATLAB and the performance is tested based on the variation in the voltage profile. Results show that the voltage profile gets stable faster in the aggregated mode, compared to the original condition of the system.","PeriodicalId":383828,"journal":{"name":"2011 IEEE Student Conference on Research and Development","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122260582","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
Classification of vehicle noise comfort level using Probabilistic neural network 基于概率神经网络的汽车噪声舒适度分类
2011 IEEE Student Conference on Research and Development Pub Date : 2011-12-01 DOI: 10.1109/SCORED.2011.6148746
M. Paulraj, S. Yaacob, A. M. Andrew, Siti Marhainis
{"title":"Classification of vehicle noise comfort level using Probabilistic neural network","authors":"M. Paulraj, S. Yaacob, A. M. Andrew, Siti Marhainis","doi":"10.1109/SCORED.2011.6148746","DOIUrl":"https://doi.org/10.1109/SCORED.2011.6148746","url":null,"abstract":"Determination of vehicle comfort is important because continuous exposure to the noise and vibration leads to health problems for the driver and passengers. In this paper, a vehicle comfort level classification system has been proposed to detect the comfort level in cars using artificial neural network. The database of sound samples from 30 local cars is used. In the stationary condition, the sound pressure level is measured at 1300 RPM, 2000 RPM and 3000 RPM. In the moving condition, the sound is recorded while the car is moving at 30 km/h up to 110 km/h. Subjective test is conducted to find the jury's evaluation for the specific sound sample. The correlation between the subjective and the objective evaluation is also tested. The relationship between the subjective results and the sound metrics is modelled using Probabilistic neural network. It is found from the research that the Spectral Power feature gives the best classification accuracy for both stationary and moving condition model, 86.54% and 82.54% respectively.","PeriodicalId":383828,"journal":{"name":"2011 IEEE Student Conference on Research and Development","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132239107","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 binary vector evaluated particle swarm optimization based method for DNA sequence design problem 基于二值向量评价的粒子群优化方法求解DNA序列设计问题
2011 IEEE Student Conference on Research and Development Pub Date : 2011-12-01 DOI: 10.1109/SCORED.2011.6148727
Z. Ibrahim, Noor Khafifah Khalid, Kian Sheng Lim, S. Buyamin, Jameel Mukred
{"title":"A binary vector evaluated particle swarm optimization based method for DNA sequence design problem","authors":"Z. Ibrahim, Noor Khafifah Khalid, Kian Sheng Lim, S. Buyamin, Jameel Mukred","doi":"10.1109/SCORED.2011.6148727","DOIUrl":"https://doi.org/10.1109/SCORED.2011.6148727","url":null,"abstract":"Deoxyribonucleic Acid (DNA) has certain unique properties such as self-assembly and self-complementary in hybridization, which are important in many DNA-based technologies. Hybridization of DNA can be controlled by properly designing DNA sequences. In this study, sequences are designed such that each sequence uniquely hybridizes to its complementary sequence, but not to any other sequences. Vector evaluated particle swarm optimization (VEPSO) is employed to solve the DNA sequence design problem by minimizing four objective functions, namely similarity, Hmeasure, continuity, and hairpin, subjected to two constraints: melting temperature and GCcontent. Non-dominated solutions can be produced, which are better than other research works where only a set of sequences is generated.","PeriodicalId":383828,"journal":{"name":"2011 IEEE Student Conference on Research and Development","volume":"182 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132348437","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
The effect of parallel projection towards image performance 平行投影对图像性能的影响
2011 IEEE Student Conference on Research and Development Pub Date : 2011-12-01 DOI: 10.1109/SCORED.2011.6148741
S. Z. Mohd Muji, R. Abdul Rahim, Leow Pei Ling, M. H. Fazalul Rahiman, Mohd. Fadzli Abd. Shaib, N. M. Nor Ayob, E. J. Mohamad, Zulkarnay Zakaria, Muhammad Jaysuman Puspanathan, M. Mansor, Naizatul Shima Mohd Fadzil
{"title":"The effect of parallel projection towards image performance","authors":"S. Z. Mohd Muji, R. Abdul Rahim, Leow Pei Ling, M. H. Fazalul Rahiman, Mohd. Fadzli Abd. Shaib, N. M. Nor Ayob, E. J. Mohamad, Zulkarnay Zakaria, Muhammad Jaysuman Puspanathan, M. Mansor, Naizatul Shima Mohd Fadzil","doi":"10.1109/SCORED.2011.6148741","DOIUrl":"https://doi.org/10.1109/SCORED.2011.6148741","url":null,"abstract":"In tomography, there are two common projection namely, parallel beam and fan beam. Both projections give a different impact towards system performance and the image itself. This paper will focus on the attenuation factor that affects towards images in parallel projection. The focuses are to see the differences between one, two, three and four projections towards image performance. The projection is come from light that is produced by LED infrared while photodiode is act as receiver. Any appearance of object between transmitter and receiver will change the voltage that is produce by receiver. The bigger the object, the more voltage losses will be sensed. The voltage loss will be manipulated to form an image where it is found out that the more the projection is applied, the image will be displayed clearer and have more information on it.","PeriodicalId":383828,"journal":{"name":"2011 IEEE Student Conference on Research and Development","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129969388","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
Rate adaptive MAC protocol for wireless ad hoc networks 无线自组织网络的速率自适应MAC协议
2011 IEEE Student Conference on Research and Development Pub Date : 2011-12-01 DOI: 10.1109/SCORED.2011.6148782
M. Hassan, Kazi Mehedi Hasan, Syed Ashfaqur Rahman, Mohammad Rashedul Hasan
{"title":"Rate adaptive MAC protocol for wireless ad hoc networks","authors":"M. Hassan, Kazi Mehedi Hasan, Syed Ashfaqur Rahman, Mohammad Rashedul Hasan","doi":"10.1109/SCORED.2011.6148782","DOIUrl":"https://doi.org/10.1109/SCORED.2011.6148782","url":null,"abstract":"The rapid growth of IEEE 802.11 WLANs in recent years has added new dimensions to different MAC layer issues of wireless ad hoc networks. The role of rate adaptation is inevitable in wireless networks since it affects the overall performance significantly. The existing rate adaptation algorithms perform poorly in congested networks since they tend to decrease the transmission rate in high congestion scenario which results in lower throughput and overall performance degradation. A lack of proper identification of congestion measurement technique is one of the main causes of this problem. In this paper, we propose a rate adaptation scheme that employs a lightweight metric known as Channel Busy Time that can differentiate high congestion from low congestion and react according to channel quality variations. We also limit the use of RTS/CTS mechanism in high congestion scenario and show that our proposed scheme, explicitly designed to handle congestion in wireless networks, performs better than the existing rate adaptive algorithms.","PeriodicalId":383828,"journal":{"name":"2011 IEEE Student Conference on Research and Development","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132711168","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
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