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2018 4th International Conference on Optimization and Applications (ICOA)最新文献

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Power capture optimization of a wind energy conversion system using a backstepping integral sliding mode control 基于反步积分滑模控制的风能转换系统能量捕获优化
2018 4th International Conference on Optimization and Applications (ICOA) Pub Date : 2018-04-01 DOI: 10.1109/ICOA.2018.8370510
F. Lamzouri, El-mahjoub Boufounas, A. El Amrani
{"title":"Power capture optimization of a wind energy conversion system using a backstepping integral sliding mode control","authors":"F. Lamzouri, El-mahjoub Boufounas, A. El Amrani","doi":"10.1109/ICOA.2018.8370510","DOIUrl":"https://doi.org/10.1109/ICOA.2018.8370510","url":null,"abstract":"In this paper, a nonlinear robust controller is designed for a variable speed wind turbine (VSWT). The main objective of the controller is to maximize the captured wind energy with reduced oscillations on the drive train. At below rated wind speed, the control input is the generator torque that depends on the reference rated speed which is derived from the effective wind speed. Furthermore, the uncertainties and external disturbances is the main design problem of controller. In order to overcome this problem, Backstepping integral Sliding Mode Control approach (BISMC) is proposed in this study; the control performance of BISMC was compared with Integral Sliding Mode Control (ISMC) through different wind speed profiles. Compared to the existing controllers, the effectiveness of the proposed controller is shown with simulations.","PeriodicalId":433166,"journal":{"name":"2018 4th International Conference on Optimization and Applications (ICOA)","volume":"60 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125930106","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
Lagrangian relaxation-based lower bound for the two-machine flow shop with synchronized periodic maintenance 基于拉格朗日松弛的同步定期维护双机流水车间下界
2018 4th International Conference on Optimization and Applications (ICOA) Pub Date : 2018-04-01 DOI: 10.1051/ro/2018062
Issam Krimi, R. Benmansour, S. Hanafi, Nizar Elhachemi
{"title":"Lagrangian relaxation-based lower bound for the two-machine flow shop with synchronized periodic maintenance","authors":"Issam Krimi, R. Benmansour, S. Hanafi, Nizar Elhachemi","doi":"10.1051/ro/2018062","DOIUrl":"https://doi.org/10.1051/ro/2018062","url":null,"abstract":"In this work, we present a Lagrangian relaxation approach to generate a new lower bound for the two-machine flow shop scheduling problem under synchronized and periodic maintenance activities. The word synchronized is used to specify that the maintenance starts at the same time on both machines. The problem is denoted as F2/nr — pm/Cmax. First, we investigate a time-indexed formulation for the problem. Then, a lower bound was proposed using Lagrangian relaxation. Computational study shows satisfactory results.","PeriodicalId":433166,"journal":{"name":"2018 4th International Conference on Optimization and Applications (ICOA)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127087568","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
Design and optimization of SIW patch antenna for Ku band applications using ANN algorithms 基于人工神经网络算法的Ku波段SIW贴片天线设计与优化
2018 4th International Conference on Optimization and Applications (ICOA) Pub Date : 2018-04-01 DOI: 10.1109/ICOA.2018.8370530
M. Chetioui, A. Boudkhil, N. Benabdallah, N. Benahmed
{"title":"Design and optimization of SIW patch antenna for Ku band applications using ANN algorithms","authors":"M. Chetioui, A. Boudkhil, N. Benabdallah, N. Benahmed","doi":"10.1109/ICOA.2018.8370530","DOIUrl":"https://doi.org/10.1109/ICOA.2018.8370530","url":null,"abstract":"Substrate Integrate Waveguides (SIW) present very compatible components to planar technologies since recent years that have has been widely implemented in microwave antennas as a class of effective integrated transmission lines to provide high quality factor capacities and incomparable self-consistent shielding. Artificial Neural Networks (ANN) present ones of the fundamental electromagnetic (EM) design automations through numerical optimizations which become nowadays ubiquitous in various modeling fields such as microwave engineering. Accordingly, this paper provides for the Ku microwave band (12–18 GHz), a new design of a patch antenna based on SIW technology using a tree-dimensional electromagnetic (EM) simulation based on structured supervised learning alternative to neural networks to provide accurate geometric dimensions for the target requirements. The SIW patch antenna is designed to operate in Ku frequency band and resonate at 16.10 GHz. The optimized antenna shows very low return losses of less than −10dB to −19dB for the selective band resulting in good performance. ANN algorithms implemented for the training process present than a reliable tool of estimating the antenna performance to provide precise geometrical dimensions with the specific requirements.","PeriodicalId":433166,"journal":{"name":"2018 4th International Conference on Optimization and Applications (ICOA)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130877173","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: 5
Performance analysis of direction of arrival estimation under hard condition 硬条件下到达方向估计的性能分析
2018 4th International Conference on Optimization and Applications (ICOA) Pub Date : 2018-04-01 DOI: 10.1109/ICOA.2018.8370544
Btissam Boustani, A. Baghdad, A. Sahel, A. Ballouk, Abdelmajid Badr
{"title":"Performance analysis of direction of arrival estimation under hard condition","authors":"Btissam Boustani, A. Baghdad, A. Sahel, A. Ballouk, Abdelmajid Badr","doi":"10.1109/ICOA.2018.8370544","DOIUrl":"https://doi.org/10.1109/ICOA.2018.8370544","url":null,"abstract":"This study presents the performance analysis of two DOA estimation algorithms, ROOT-MUSIC and ROOT-WSF under severe conditions, responsible of signal deterioration. These algorithms have proven to be effective in the comparative study made in previous studies [1] [2], although, it did not include the constraints that a signal can be subjected to. In this context we evaluated the two DOA estimation algorithms, based on four criterias: high frequency, correlated signal, closely spaced sources and noise detection. ROOT-WSF algorithm provides the most accurate results for detecting the angle of arrival under this hard condition.","PeriodicalId":433166,"journal":{"name":"2018 4th International Conference on Optimization and Applications (ICOA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129260196","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
A novel small and compact flexible monopole antenna for UWB applications 一种新型的小而紧凑的柔性单极天线，用于超宽带应用
2018 4th International Conference on Optimization and Applications (ICOA) Pub Date : 2018-04-01 DOI: 10.1109/ICOA.2018.8370527
A. Hachi, H. Lebbar, M. Himdi
{"title":"A novel small and compact flexible monopole antenna for UWB applications","authors":"A. Hachi, H. Lebbar, M. Himdi","doi":"10.1109/ICOA.2018.8370527","DOIUrl":"https://doi.org/10.1109/ICOA.2018.8370527","url":null,"abstract":"A novel small flexible elliptical monopole antenna on the basis of the disk monopole antenna structure is presented and developed in this paper. The improved antenna reduces the height and can realize good bandwidth performance; it has low cost, simple structure, and flexible characteristics. The novel elliptical antenna was bent on a cylindrical surface which once more reduces the space in term of larger of the antenna; good performances were achieved compared to flat elliptical one: a directional radiation pattern at all frequencies band and an increasing gain were obtained. The impedance bandwidth, radiation pattern and peak gain, of the antennas, are studied and presented, they have been investigated using simulation software CST and experimental results. The measured and simulated results showed excellent agreement. The novel small elliptical monopole antennas will be suitable for UWB applications.","PeriodicalId":433166,"journal":{"name":"2018 4th International Conference on Optimization and Applications (ICOA)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122967937","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
Information system performance evaluation and optimization using AHP and TOPSIS: Construction industry case 基于AHP和TOPSIS的信息系统绩效评价与优化:建筑业案例
2018 4th International Conference on Optimization and Applications (ICOA) Pub Date : 2018-04-01 DOI: 10.1109/icoa.2018.8370589
Ansar Daghouri, K. Mansouri, Mohammed Qbadou
{"title":"Information system performance evaluation and optimization using AHP and TOPSIS: Construction industry case","authors":"Ansar Daghouri, K. Mansouri, Mohammed Qbadou","doi":"10.1109/icoa.2018.8370589","DOIUrl":"https://doi.org/10.1109/icoa.2018.8370589","url":null,"abstract":"The purpose of this study is to present an attempt to adopt a multicriteria decision making approach and to evaluate the information system in construction industry sector based on the DeLone and McLean information systems success model. In this research, the companies are ranked by TOPSIS method using weights obtained from AHP method. Five Moroccan companies were analyzed in term of information system performance they provided. In order to find the performance order, we will calculate criteria weights provided from DeLone and McLean model for each company using AHP and TOPSIS method.","PeriodicalId":433166,"journal":{"name":"2018 4th International Conference on Optimization and Applications (ICOA)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114285345","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
Positive real control for 2D continuous systems roesser models in finite frequency domains 有限频域二维连续系统模型的正实控制
2018 4th International Conference on Optimization and Applications (ICOA) Pub Date : 2018-04-01 DOI: 10.1109/ICOA.2018.8370511
A. El‐Amrani, B. Boukili, A. Hmamed, A. El Hajjaji, I. Boumhidi
{"title":"Positive real control for 2D continuous systems roesser models in finite frequency domains","authors":"A. El‐Amrani, B. Boukili, A. Hmamed, A. El Hajjaji, I. Boumhidi","doi":"10.1109/ICOA.2018.8370511","DOIUrl":"https://doi.org/10.1109/ICOA.2018.8370511","url":null,"abstract":"This paper investigates the design problem of state positive real control in finite frequency domains for two-dimensional (2D) continuous systems described by a Roesser model. Our aim is to design a new state feedback control in specific Finite Frequency (FF) domains. Using the well known generalized Kalman Yakubovich Popov (gKYP) lemma, sufficient conditions for the existence of state feedback control for different FF ranges are proposed and then unified in terms of solving a set of linear matrix inequalities (LMIs). Illustrative example is provided to show the usefulness and potential of the proposed results.","PeriodicalId":433166,"journal":{"name":"2018 4th International Conference on Optimization and Applications (ICOA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134378599","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
The effect of inlet and outlet position and sediments concentration on sedimentation tank efficiency 进出口位置和沉淀物浓度对沉淀池效率的影响
2018 4th International Conference on Optimization and Applications (ICOA) Pub Date : 2018-04-01 DOI: 10.1109/ICOA.2018.8370535
F. Bouisfi, Achraf Bouisfi, H. Che, M. El Bouhali, M. Chaoui
{"title":"The effect of inlet and outlet position and sediments concentration on sedimentation tank efficiency","authors":"F. Bouisfi, Achraf Bouisfi, H. Che, M. El Bouhali, M. Chaoui","doi":"10.1109/ICOA.2018.8370535","DOIUrl":"https://doi.org/10.1109/ICOA.2018.8370535","url":null,"abstract":"In this study, numerical model has been employed in order to study the effect of inlet and outlet position on sedimentation efficiency of rectangular sedimentation tank. This modified configuration has been tested with different particle size and concentration. Sedimentation efficiency was evaluated by calculation of trap efficiency. Results show that changing inlet and outlet location increase hydraulic performance of the tank. Flow field showed his sensitivity to suspension concentration when inlet and outlet are in the middle of the tank. However inlet and outlet location improve sedimentation efficiency, especially for fine particles. The present model is confirmed by experimentation measurement in Swiss conducted by the Laboratory of Hydraulic Construction of the Swiss Federal Institute of Technology.","PeriodicalId":433166,"journal":{"name":"2018 4th International Conference on Optimization and Applications (ICOA)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115095675","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
Optimal power flow management strategies of MicroGrid, using Petri Nets and fuzzy logic approaches 基于Petri网和模糊逻辑方法的微电网潮流优化管理策略
2018 4th International Conference on Optimization and Applications (ICOA) Pub Date : 2018-04-01 DOI: 10.1109/ICOA.2018.8370517
Marouane Lagouir, A. Badri, Y. Sayouti
{"title":"Optimal power flow management strategies of MicroGrid, using Petri Nets and fuzzy logic approaches","authors":"Marouane Lagouir, A. Badri, Y. Sayouti","doi":"10.1109/ICOA.2018.8370517","DOIUrl":"https://doi.org/10.1109/ICOA.2018.8370517","url":null,"abstract":"This paper aimed to optimal power management strategies for real time operation of an hybrid ac/dc microgrid. The main objective of this work is to design, and implement supervision systems to schedule the power delivery of proposed microgrid. Two approaches are performed, the first based on petri nets (PN) formalism, and the second using fuzzy logic system. A comparative study of the performance of each management system is performed taking into account operating cost optimization, meeting energy needs and grid supply limitation. The results show that the fuzzy logic approach ensures optimal operating system with considerably minimization in unsatisfied power and operating cost.","PeriodicalId":433166,"journal":{"name":"2018 4th International Conference on Optimization and Applications (ICOA)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114343447","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
Local search algorithm for low autocorrelation binary sequences 低自相关二值序列的局部搜索算法
2018 4th International Conference on Optimization and Applications (ICOA) Pub Date : 2018-04-01 DOI: 10.1109/ICOA.2018.8370526
Kaoutar Farnane, K. Minaoui, D. Aboutajdine
{"title":"Local search algorithm for low autocorrelation binary sequences","authors":"Kaoutar Farnane, K. Minaoui, D. Aboutajdine","doi":"10.1109/ICOA.2018.8370526","DOIUrl":"https://doi.org/10.1109/ICOA.2018.8370526","url":null,"abstract":"LABS (low autocorrelation binary sequence) have many practical applications. In radar application, sequences with low autocorrelation side lobe energies are necessary to reduce the noise and to increase the ability of radars to detect multiple targets. In the literature, several techniques have been proposed to solve the LABS problem. For short length sequences, local search algorithms can be applied as the search space is manageable. For this reason, this article proposes to use two known local search algorithm: TS (tabu search) and SA (simulated annealing). These algorithms were be applied to find an optimal value of the register that generates an MLS sequence. With this implementation, we have obtained better results, we have found a higher value of merit factor compared with without optimization.","PeriodicalId":433166,"journal":{"name":"2018 4th International Conference on Optimization and Applications (ICOA)","volume":"122 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121951132","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
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