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PSS and SVC Controller Design using Chaos, PSO and SFL Algorithms to Enhancing the Power System Stability

Energy and Power Engineering 2011年第2期3卷 87-95页

作者： Saeid Jalilzadeh reza noroozian Mahdi Sabouri Saeid Behzadpoor 不详

In this paper, the Authors present the designing of power system stabilizer (PSS) and static var compensator (SVC) based on chaos, particle swarm optimization (PSO) and shuffled frog leaping (SFL) Algorithms has been presented to improve the power system stability. Single machine infinite bus (SMIB) system with SVC located at the terminal of generator has been considered to evaluate the proposed SVC and PSS controllers. The coefficients of PSS and SVC controller have been optimized by Chaos, PSO and SFL algorithms. Fi-nally the system with proposed controllers is simulated for the special disturbance in input power of genera-tor, and then the dynamic responses of generator have been presented. The simulation results show that the system composed with recommended controller has outstanding operation in fast damping of oscillations of power system and describes an application of Chaos, PSO and SFL algorithms to the problem of designing a Lead-Lag controller used in PSS and SVC in power system.

关键词： Power System Stabilizer (PSS) Static Var Compensator (SVC) Single Machine Infinite Bus (SMIB) Chaos Shuffled Frog Leaping (SFL) Particle Swarm Optimization (PSO)

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PSS and SVC Controller Design Using Chaos, PSO and SFL Algorithms to Enhancing the Power System Stability

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Energy and Power Engineering（能源与动力工程） 2011年第2期

作者： Saeid Jalilzadeh reza noroozian Mahdi Sabouri Saeid Behzadpoor

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A novel control strategy for load converter of DC isolated distribution system under unbalanced loading conditions

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2009年第6期10卷 890-899页

作者： R.noroozian M.ABEDI G.B.GHAREHPETIAN S.H.HOSSEINI Department of Electrical Engineering Amirkabir University of Technology Department of Electrical and Computer Engineering Tabriz University

A novel control strategy for the load converter supplying the unbalanced AC load in a DC isolated distribution system is presented. The control algorithm results in balanced and sinusoidal load voltages under unbalanced AC loading. The unbalanced load is characterized in the d-q-0 rotating coordinate based on symmetrical sequence components. Also, the mathematical model of the load converter in both a-b-c and d-q-0 coordinates is derived by using the average large signal model. Then, two control strategies for the load converter are presented. The first one uses the conventional d-q-0 controller to ensure the voltage and current regulation. The second one is a newly proposed control strategy based on the decomposition of the voltage and current into in-stantaneous positive, negative, and zero sequences. These three sequences are controlled independently in their own reference frames as DC signals. The performance of the load converter using these two control strategies is compared. Simulation results show the validity and capability of the newly proposed control strategy.

关键词： Unbalanced load Power quality Symmetrical components Control strategy

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Neuropsychological and Neurological Deficits in Obsessive-Compulsive Disorder: The Role of Comorbid Depression

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International Journal of Clinical Medicine 2012年第3期3卷 200-210页

作者： Habibollah Ghassemzadeh Ramin Mojtabai Nargess Karamghadiri Maryam noroozian Vandad Sharifi Nargess Ebrahimkhani Depart- ment of Mental Health Johns Hopkins Bloomberg School of Public Health Baltimore USA. Roozbeh Hospital Department of Psychiatry School of Medicine Tehran University of Medical Sciences Tehran Iran

Past research has found a high prevalence of neuropsychological deficits and neurological soft signs in patients with obsessive-compulsive disorder (OCD). A close relationship between OCD and depression has also been indicated in the literature. However, many aspects of this association remain unclear. In this study we compared neuropsychological functioning and neurological soft signs of 46 OCD patients who were off psychotropic medication (21 with significant depressive symptoms and 25 without) with 25 non-patient comparison subjects. The patients were matched to the comparison group with regard to age, sex, education, marital status and handedness. There were significant differences between OCD patients and the non-patient comparison group on neuropsychological functioning but not on neurological soft signs. As far as working memory concerns there was a significant difference between the OCD depressed and non-depressed groups. But we found no evidence that the neuropsychological functions such as cognitive flexibility, problem solving and spatial perception in OCD to be attributable to comorbid depression. The pattern of neuropsychological deficits in this sample of OCD patients is suggestive of orbito-frontal as well as dorsolateral prefrontal cortical dysfunction.

关键词： Obsessive Compulsive Disorder OCD Depression Neuropsychological Assessment Neurological Assessment Soft Signs

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Influence of dietary Probiotic (Biomin IMBO) on performance of laying hen

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Agricultural Sciences 2013年第1期4卷 23-26页

作者： Asghar Mohammadian Seyed Mozafar Mehdizadeh Hooshang Lotfollahian Farhad Mirzaei Hosein noroozian Animal Nutrition Animal Science Research Institute of Iran Karaj Iran Animal Production Management Animal Husbandry Economics Animal Science Research Institute of Iran Karaj Iran Department of Animal Science College of Agriculture Islamic Azad University Karaj Iran

240 laying birds were procured and distributed randomly into four treatments and four replicate (15 birds each) which was fed one of the following experimental diets containing different levels of probiotics (Biomin IMBO) for seven weeks. 1-Basel diet (control groups), 2-Basel diet + 250 g/t, 3-Basel diet +500 g/t, 4-Basel diet +750 g/t feed respectively. As results was revealed, feed efficiency were improved significantly throughout the production periods

关键词： Probiotic (Biomin IMBO) Performance Egg Characteristics Laying Hen

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乳腺数字断层摄影:通过一个使用可变的扫描角度、角增量和投影视图数量的实验系统来检测乳腺模型图像簇状微小钙化的观察者效能

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国际医学放射学杂志 2015年第1期 72-72页

作者： H.P.Chan M.M.Goodsitt M.A.Helvie S.Zelakiewicz A.Schmitz M.noroozian Department of Radiology University of Michigan Medical Center

目的探讨乳腺数字断层摄影(DBT)簇状微钙化检测能力取决于断层成像扫描角、角增量和投影视图的数量。材料与方法一个按步骤和拍摄模式操作的原型DBT系

关键词：微小钙化断层摄影乳腺乳房投影视图 DBT

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数字乳腺断层融合与乳腺摄影点片对显示肿块特征的对比研究

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国际医学放射学杂志 2012年第2期 165-165页

作者： M.noroozian L.Hadjiiski S.Rahnama-Moghadam K.A.Klein D.O.Jeffries R.W.Pinsky 肖运平 Department of Radiology University of Michigan Health System1500 E Medical Center DrSPC 5326Ann ArborMI 48109

目的探讨数字乳腺断层融合(DBT)与乳腺摄影点片(mammographic spot views,MSV)在显示肿块良恶性特征方面的可比性。方法本研究经生命科学伦理审查委员会批准,符合HIPAA法案,所有受试者签署知情同意书。4名获得乳腺质量标准认证的放射... 详细信息

目的探讨数字乳腺断层融合(DBT)与乳腺摄影点片(mammographic spot views,MSV)在显示肿块良恶性特征方面的可比性。方法本研究经生命科学伦理审查委员会批准,符合HIPAA法案,所有受试者签署知情同意书。4名获得乳腺质量标准认证的放射专家双盲独立对67例女性病人(年龄34～88岁)共67个乳腺肿块(30个恶性,37个良性)的

关键词：乳腺摄影 MSV DBT 点片肿块断层地质构造

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