{"title":"Decentralized control of a multivariable flow-level plant based on robust control approach","authors":"Y. Kouhi, B. Labibi, Alireza Fatehi, R. Adlgostar","doi":"10.1109/INDCON.2008.4768756","DOIUrl":"https://doi.org/10.1109/INDCON.2008.4768756","url":null,"abstract":"In this paper a novel approach is proposed to solve a decentralized control problem to stabilize a multivariable system and attenuate the interconnections between its subsystems. To satisfy these conditions, an ut feedback controller is designed by solving an Hinfin control problem. The designed controller is applied to a practical multivariable flow-level plant to show the effectiveness of the proposed methodology. The time delays, transmission zero, two different time constants, and the model uncertainties are the main problems in this plant.","PeriodicalId":196254,"journal":{"name":"2008 Annual IEEE India Conference","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131244219","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}
{"title":"Lifetime and queue length constrained quality of service routing for mobile ad hoc networks","authors":"K.A.M. AlSoufy, A. Abbas","doi":"10.1109/INDCON.2008.4768822","DOIUrl":"https://doi.org/10.1109/INDCON.2008.4768822","url":null,"abstract":"Designing a routing protocol with a provision of quality of service (QoS) for mobile ad hoc networks is a challenging task. In this paper, we present a routing protocol that identifies multiple node-disjoint paths between a given source and a destination. These multiple node-disjoint are examined for satisfying QoS constraints. The QoS constraints that we consider are lifetime of paths and queue length of nodes along the paths. We study the effect of transmission range of nodes, threshold for lifetime, and max queue length over the number of paths that satisfy the given QoS constraints.","PeriodicalId":196254,"journal":{"name":"2008 Annual IEEE India Conference","volume":"189 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123329633","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}
{"title":"A comparative study of pulse shaping functions for ICI power reduction in OFDM system","authors":"S. Mohanty, S. Das","doi":"10.1109/INDCON.2008.4768741","DOIUrl":"https://doi.org/10.1109/INDCON.2008.4768741","url":null,"abstract":"For orthogonal frequency-division multiplexing (OFDM) communication systems, the frequency offsets in mobile radio channels distort the orthogonality between subcarriers resulting in intercarrier interference (ICI). In this paper, pulse shaping technique for ICI power reduction in OFDM systems are investigated. A number of pulse shaping functions such as rectangular pulse (REC), raised cosine pulse (RC), Better then raised cosine pulse (BTRC), Sinc power pulse (SP) and Improved sine power pulse (ISP) have been considered for ICI power reduction. The performance of each pulse shaping function is evaluated and compared with each other using the parameters such as ICI power, SIR (Signal to Interference Ratio) and BER (Bit Error Rate). It is observed from simulation results that ISP pulse shapes outperform the conventional pulse shaping functions in ICI power reduction remarkably.","PeriodicalId":196254,"journal":{"name":"2008 Annual IEEE India Conference","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121575511","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}
{"title":"Design, performance of the speed control of a nonlinear variable reluctance motor drive using exact feedback linearization","authors":"K. Maa, B. Arundhati, M. Kumar","doi":"10.1109/INDCON.2008.4768801","DOIUrl":"https://doi.org/10.1109/INDCON.2008.4768801","url":null,"abstract":"Synchronous, motor drives are fast becoming an attractive alternative to DC, and induction motor drives, especially in the low speed, high power range. Different types, of control schemes, have been suggested for variable speed AC drives, fed from static power source. Among them, field oriented control employing vector control, strategies has become quite popular in recent near, A disadvantage of the scheme when applied to synchronous motor drives is that the motor always, operates at a lagging, power factor. In this, work. a generalized design strategy is suggested for the speed control loop of an inverter-fed synchronous motor drive, in which, its inherent flexibility to generate the same torque for different combinations of currents, is exploited that can achieve more general types of control. Existing control schemes such as unity power factor control, torque angle control. as well as field-oriented control etc can be obtained as special cases, for special types, of synchronous motor such as permanent magnet and variable reluctance motors, however the details of permanent magnet motor is beyond the scope of this, paper. The scheme has been validated through extensive simulation as well as laboratory experiments.","PeriodicalId":196254,"journal":{"name":"2008 Annual IEEE India Conference","volume":"209 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114165716","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}
{"title":"Context based medical image compression with application to ultrasound images","authors":"M. A. Ansari, R. Anand","doi":"10.1109/INDCON.2008.4768796","DOIUrl":"https://doi.org/10.1109/INDCON.2008.4768796","url":null,"abstract":"The basic goal of medical image compression is to reduce the bit rate and enhance the compression efficiency for the transmission and storage of the medical imagery while maintaining an acceptable diagnostic image quality. Because of the storage, transmission bandwidth and the limitations of the conventional compression methods, the medical imagery need to be compressed selectively to reduce the transmission time and storage cost along with the preservance of the high quality of the image. The other important reason of context based medical image compression is the high spatial resolution and contrast sensitivity requirements. In medical images, contextual region is an area which contains the most useful and important information and must be coded carefully without appreciable distortion. A novel scheme for context based coding is proposed here and yields significantly better compression rates than the general methods of JPEG and JPEG2000. In the proposed method the contextual part of the image is encoded selectively on the high priority basis with a very low compression rate (high bpp) and the background of the image is separately encoded with a low priority and a high compression rate (low bpp). As a result, high over all compression rates, better diagnostic image quality and improved performance parameters (CR, MSE, PSNR and CoC) are obtained. The experimental results have been compared to the Scaling, Maxshift, Implicit and EBCOT methods on ultrasound medical images and it is found that the proposed algorithm gives better and improved results.","PeriodicalId":196254,"journal":{"name":"2008 Annual IEEE India Conference","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128430872","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}
{"title":"Coupled neutronics-thermal hydraulics model of Advanced Heavy Water Reactor for control system studies","authors":"S. Shimjith, A. Tiwari, B. Bandyopadhyay","doi":"10.1109/INDCON.2008.4768813","DOIUrl":"https://doi.org/10.1109/INDCON.2008.4768813","url":null,"abstract":"A coupled neutronics-thermal hydraulics model of advanced heavy water reactor (AHWR) which can be used for control system studies, simulation etc. is presented in this paper. A nodal model is developed for core neutronics and a simple two-phase thermal hydraulics model is developed from first principles. Neutronics-thermal hydraulics coupling is achieved through the void reactivity feedback model. Selection of a suitable nodalization scheme through steady state analysis is discussed, and dynamic response of the model is also presented.","PeriodicalId":196254,"journal":{"name":"2008 Annual IEEE India Conference","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130804554","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}
{"title":"Extended linear matrix inequality approach to multiobjective output feedback controller design","authors":"M. Farhoodi, M. Beheshti","doi":"10.1109/INDCON.2008.4768782","DOIUrl":"https://doi.org/10.1109/INDCON.2008.4768782","url":null,"abstract":"In this paper, a new linear matrix inequality approach to the multiobjective controller synthesis for continuous-time linear systems is presented. This new synthesis procedure is investigated for the dynamic output feedback controllers. Our approach is based on the newly developed extended norm characterizations which exhibits a kind of decoupling between the Lyapunov and the system matrices. In this paper, we develop a parameterization for output-feedback linear controllers which linearizes the extended norm conditions for synthesis of controller parameters. These extended synthesis linear matrix inequalities are less conservative in comparison to the previously presented counterparts since the optimization variables associated with the controller parameters are independent of the symmetric Lyapunov matrix. This feature is significant due to the several reasons. First, parameter dependent Lyapunov function can be considered which could provide a very positive impact on the design of robust control problems. Second, the design of controller with mixed objectives such as H2 performance and Hinfinperformance can be addressed without employing a unique Lyapunov matrix while still the controller design amounts to solving a set of linear matrix inequalities. The validity of this approach is illustrated by a design example.","PeriodicalId":196254,"journal":{"name":"2008 Annual IEEE India Conference","volume":"310 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134078598","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}
A. Kumar, S. Chanana, V. Reddy, V. Goel, A. Chaudhary
{"title":"Distributed generation location based on fuel cost minimization in deregulated electricity markets","authors":"A. Kumar, S. Chanana, V. Reddy, V. Goel, A. Chaudhary","doi":"10.1109/INDCON.2008.4768826","DOIUrl":"https://doi.org/10.1109/INDCON.2008.4768826","url":null,"abstract":"Distributed generation will play a key role in the future electricity markets with its increasing share of energy and improving voltage profile, reducing losses, reducing fuel cost and increasing efficiency of electricity market operation. This paper presents an optimization approach for determining optimal location of distributed generators in deregulated electricity market based on fuel cost minimization. The fuel cost has been obtained connecting distributed generator at each bus iteratively and pattern of fuel cost have been obtained. The distributed generator has been located at a load bus with minimum fuel cost. The patterns of real and reactive nodal price, losses, and line flows have been obtained without and with the presence of distributed generator for pool electricity market model. The proposed optimization approach has been applied for IEEE 24 bus reliability test system.","PeriodicalId":196254,"journal":{"name":"2008 Annual IEEE India Conference","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116594709","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}
{"title":"DC converter based fault analysis using simulink and RTDS","authors":"M. Garg, H. Hamilton, A. Srivastava, N. Schulz","doi":"10.1109/INDCON.2008.4768767","DOIUrl":"https://doi.org/10.1109/INDCON.2008.4768767","url":null,"abstract":"The paper aims at analyzing various DC fault detection and protection techniques. In the proposed model of a DC ship system, various AC-DC, DC-DC and DC-AC converters are used. Different converters, controlled or uncontrolled, six or twelve pulse converters are used. The paper aims at modeling and simulation of different converters in Matlab Simulink and the RTDS environment to analyze DC fault effect on the DC side and its propagation from the DC to the AC side. Comparisons are made between the simulations in the real time and Simulink environments. By comparing the results of the different converters, a strategy for developing fault identify and removal for DC shipboard distribution systems will be determined. The effect of fault resistance on fault parameters is also highlighted in the paper.","PeriodicalId":196254,"journal":{"name":"2008 Annual IEEE India Conference","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133770670","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}
{"title":"Fault diagnosis in multi-level inverter system using adaptive back propagation neural network","authors":"B. Babu, J. Srinivas, B. Vikranth, P. Premchnad","doi":"10.1109/INDCON.2008.4768773","DOIUrl":"https://doi.org/10.1109/INDCON.2008.4768773","url":null,"abstract":"In this paper, a fault diagnostic system in a multilevel- inverter using a adaptive back-propagation neural network is developed. An adaptive back propagation neural network classification is applied to the fault diagnosis of a MLI system to avoid the difficulties in using mathematical models. A multilayer perceptron (MLP) network with 40 - 12 - 8 architecture is used to identify the type and location of occurring faults from inverter output voltage measurement. The neural network design process is clearly described. The classification performance of the proposed network between normal and abnormal condition and that among fault features is obtained. Thus, by utilizing the proposed neural network fault diagnostic system, a better understanding about fault behaviors, diagnostics, and detections of a multilevel inverter system can be accomplished.","PeriodicalId":196254,"journal":{"name":"2008 Annual IEEE India Conference","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114336216","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}