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Fuzzy Logic Controller Implementation of Power Quality Improvement Using UPQC

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Circuits and Systems 2017年第8期8卷 202-226页

作者： S. Balaslubramaniyan T. S. sivakumaran Department of EEE Mailam Engineering College Mailam India Department of EEE Arunai College of Engineering Tiruvannamalai India

This paper presents a gross examination about Unified Power Quality Conditioner (UPQC) to invigorate the power issues at the distribution level of the electrical system. Nowadays power electronics research has added the importance of power quality studies, for concrete illustration, Custom Power Devices (CPD) and Flexible AC Transmission position (FACTS) devices. The approach offered in this paper utilizes the series and shunt compensator of Unified Power Quality Conditioner (UPQC) to inject a compensation voltage in-phase with the source current over voltage fluctuations. The execution of two structures of UPQC, left-shunt (L-UPQC) and right-shunt (R-UPQC) are investigated under diverse operating conditions based on the fuzzy logic controller to raise the value of power quality of a single feeder distribution system by MATLAB/Simulink programming. Various power quality issues have been analyzed in this study. Finally, the right shunt UPQC is outperformed in this proposed power system.

关键词： Left Shunt UPQC Right Shunt UPQC Fuzzy Logic Controller Power Quality

High Strength Low Alloy（HSLA） Steels in Building Construction

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High Strength Low Alloy（HSLA） Steels in Building Construct...

MULTIPLE SUB-BAND SYSTEMS FOR SPEAKER VERIFICATION

第六届国际低合金高强度钢会议

作者： sivakumaran Ken Siva Jansto Steven G Professor Department of Civil EngineeringMcMaster UniversityHamiltonOntarioCanada L8S 4L7

＜正＞Majority of the buildings,including industrial buildings,are constructed using either structural steel（plates and structural shapes）or deformed bar steel reinforced *** buildings,however,must be designed to be safe and serviceable during construction and during use and *** objectives can be easily achieved by the use of steels having superior mechanical properties,ductility,weldability,fire resistance,*** the years,the steel industry has made improvements in steel making technologies resulting in high strength low alloy（HSLA）steels with superior steel properties well suited for building *** part of this paper presents the structural design considerations, and the constructional considerations associated with the building structures in general,and steel structures in particular. This second part of the paper looks at the acceptance criteria for HSLA steels for North American building codes and *** third part of the paper presents the structural properties of currently available HSLA steels for building *** discussion focuses on hot-rolled structural steel shapes as well as deformed steel bars for concrete *** paper argues that Niobium microalloying is the key to achieving superior properties in such steels.

关键词： HSLA steels building construction structural shapes deformed bars structural performance niobium

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MULTIPLE SUB-BAND SYSTEMS FOR SPEAKER VERIFICATION

6～(th) International Conference on Spoken Language Processing

作者： P.sivakumaran A.M.Ariyaeeinia J.A.Hewitt University of Hertfordshire HatfieldHertfordshireAL10 9ABUK University of Hertfordshire HatfieldHertfordshireAL10 9ABUK University of Hertfordshire HatfieldHertfordshireAL10 9ABUK

＜正＞It is well known that the spectral information contained in the fuji-band cepstrai parameters within a certain range is highly useful for speaker diserimination. However. this information cannot be fully represented by using the cepstral parametersgenerated in a single sub-band-system. This paper focuses on methods to tackle this deficiency of the sub-band cepstrum in the context of text-dependent speaker verification. In particular, it focuscs on a technique based on the collective use of the cepstral vectors generated from a set of different sub-band systems. The paper also addresses the procedure for an effective incorporation or this technique into the hidden Markov model （HMM） framework. Furthermore, the implementation issues are discussed and details of the experimental evaluation are presented.

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乙烯利刺激剂施用后产生效应的最短时间

热带农业科技 1984年第3期 47-48页

作者： S.sivakumaran ,陈莉

割线上施用乙烯利比在割线下方割皮施药普遍,因为这种方法更容易更省钱。割线涂药要在休割天进行,原因是刚割过胶的割线未完全凝固,涂药不方便或被弄脏。可是,割线涂药与割皮涂药不同,大部分涂过药的树皮在处理后第一次割胶时就被割掉... 详细信息

割线上施用乙烯利比在割线下方割皮施药普遍,因为这种方法更容易更省钱。割线涂药要在休割天进行,原因是刚割过胶的割线未完全凝固,涂药不方便或被弄脏。可是,割线涂药与割皮涂药不同,大部分涂过药的树皮在处理后第一次割胶时就被割掉了。因而有这样一些疑问:胶树是否有足够的时间吸收刺激剂?割掉处理过的树皮是否刺激作用就消失了?如果不割掉,刺激反应会不会更好?还没有从刺

关键词：反应涂药乙烯利刺激最短时间割线

Analysis, Modeling and Simulation of State Feedback Control for Positive Output Super Lift Luo Converter

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Circuits and Systems 2016年第11期7卷 3971-3983页

作者： N. Arunkumar T. S. sivakumaran K. Ramashkumar R. Shenbagalakshmi Department of Electrical and Electronics Engineering TRP Engineering College (SRM Group) Trichy India Department of Electrical and Electronics Engineering Sasurie Academy of Engineering Coimbatore India Department of Electrical and Electronics Engineering Christ Institute of Technology (Formerly by Dr. S.J.S. Paul Memorial College of Engineering and Technology) Puducherry India

This article studies a design and implementation of state-feedback control problem for dc-dc Positive Output Super Lift Luo (POSLL) converter by considering the line and load disturbances for needing desired power source for various portable electronic equipments like battery charger, hard disk drives, medical device, LED TV etc. The POSLL’s dynamic performance becomes non-linear in nature;the designed controller able to get superior dynamic performance given by load estimation is done by using an observer and by combining the state-feedback control with the load estimator, a controller which is explicitly developed with strong robustness using separation principle. An effectual stability analysis is exemplified to prove that by carefully selecting the state feedback control and observer gain matrix, the output voltage of the dc-dc POSLL converter tracks the desired value irrespective of the uncertainties. Extensive simulation is carried out using MATLAB/Simulink model. The result based on time domain analysis is done by using the controllers for various disturbances given to the converter.

关键词： DC-DC Converter POSLL Controller

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乙烯丰的施用浓度、剂量和频率之间的关系

世界热带农业信息 1985年第1期 8-11页

作者： S. sivakumaran 田林

在植胶界,关于乙烯丰浓度对产量效应的影响问题上有些混乱。通常认为,施用相似浓度的乙烯丰会得到相似的效应。这末必确切,因为所得效应的多少视施于胶树的乙烯丰的实际有效成分而定。有效成分又与施于胶树的剂量和浓度有关。

关键词：施用浓度剂量用药量

橡胶树死皮的研究 Ⅰ.一种简便快速诱导死皮的方法

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热带农业科技 1984年第2期 33-40页

作者： S.sivakumaran ,陈建白

这种诱导胶树死皮的方法是在常规割胶之前和之后,在割面(割线下方—译注)的垂直针刺带上针刺树皮4或5点,然后用图钉封闭针刺点;每隔一周或二周在前次针刺点的下方重复进行针刺一次。这种技术对于诱导许多品系的死皮均有效。然而,对于参... 详细信息

这种诱导胶树死皮的方法是在常规割胶之前和之后,在割面(割线下方—译注)的垂直针刺带上针刺树皮4或5点,然后用图钉封闭针刺点;每隔一周或二周在前次针刺点的下方重复进行针刺一次。这种技术对于诱导许多品系的死皮均有效。然而,对于参试的品系,在原生皮上和再生皮上的死皮诱导率是不同的。这种在正常割胶强度下诱导死皮的方法,对于研究胶树死皮发生、发展有关的生理参数变化,要比那种基于强度割胶造成死皮的方法更好。本文还讨论采用这种诱导死皮的方法,其它有关参数诸如胶树产量、胶乳最初流率和干胶含量的变化。上述任一指标是否可以作为胶树发生死皮的早期预报信号,进一步的研究正在进行。

关键词：死皮产量诱导率流率干胶含量胶树

短割线割面轮换割制结合乙烯丰连续刺激的效应

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世界热带农业信息 1986年第5期 1-10页

作者： S. sivakumaran 王钊

当最初证明乙烯丰是一种有效的增产刺激剂时,就有人假定它是通过延缓胶树的堵塞机制起作用的,因而导致了受刺激的胶树增产。Southorn等指出,与长割线相比,短割线的堵塞作用很强,由此认为,短割线可能对乙烯丰刺激有良好的增产效应,从而... 详细信息

当最初证明乙烯丰是一种有效的增产刺激剂时,就有人假定它是通过延缓胶树的堵塞机制起作用的,因而导致了受刺激的胶树增产。Southorn等指出,与长割线相比,短割线的堵塞作用很强,由此认为,短割线可能对乙烯丰刺激有良好的增产效应,从而设计了一种新割胶制度,即相邻的两条四分之一树围的割线交替轮割,每四天割一次。

关键词：割面无性系 BI 树皮 BO 无性繁殖系品系(育种) 干胶含量割线

乙烯丰的刺激作用——施药后产生最大效应的最短时间

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世界热带农业信息 1984年第5期 15-17页

作者： S.sivakumaran 田林

在割线上施乙烯利的方法比在割线下方刮皮涂药法更为普遍,因为此法更简便和经济。使用割线施药法时,刺激剂是在停割日施用,若在刚割

关键词：割线法时刺激剂最大效应产量效应施药最短时间