Pub Date : 2011-12-01DOI: 10.1109/ICEAS.2011.6147091
M. Rout, B. Majhi, U. M. Mohapatra
The paper proposes a new model for efficient prediction of small and long range exchange rate forecasting. The model employs an adaptive linear combiner with its weights trained using Differential Evolution (DE). A new training scheme of model parameters is proposed using DE based optimization rules. The prediction results are obtained using LMS, GA as well as DE based method. In all cases simulated it is concluded that the DE based training model shows improved prediction performance for all exchange rates as well as for various months' ahead prediction.
{"title":"Development and performance evaluation of DE based time series prediction model","authors":"M. Rout, B. Majhi, U. M. Mohapatra","doi":"10.1109/ICEAS.2011.6147091","DOIUrl":"https://doi.org/10.1109/ICEAS.2011.6147091","url":null,"abstract":"The paper proposes a new model for efficient prediction of small and long range exchange rate forecasting. The model employs an adaptive linear combiner with its weights trained using Differential Evolution (DE). A new training scheme of model parameters is proposed using DE based optimization rules. The prediction results are obtained using LMS, GA as well as DE based method. In all cases simulated it is concluded that the DE based training model shows improved prediction performance for all exchange rates as well as for various months' ahead prediction.","PeriodicalId":273164,"journal":{"name":"2011 International Conference on Energy, Automation and Signal","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":"127201830","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}
Pub Date : 2011-12-01DOI: 10.1109/ICEAS.2011.6147163
N. Anand, M. S. Kumar, R. S. Rao
This paper describes a technique to obtain a stable lower order Interval model from its stable higher order interval plant. The reduced order interval numerator and denominator polynomials are determined by using Kharitonov's theorem and Routh Approximation Method. The algorithm is simple, rugged and generates stable reduced order interval model for stable original high order interval plants. A numerical example illustrates the effectiveness of proposed algorithm.
{"title":"Model reduction of linear interval systems using Kharitonov's polynomials","authors":"N. Anand, M. S. Kumar, R. S. Rao","doi":"10.1109/ICEAS.2011.6147163","DOIUrl":"https://doi.org/10.1109/ICEAS.2011.6147163","url":null,"abstract":"This paper describes a technique to obtain a stable lower order Interval model from its stable higher order interval plant. The reduced order interval numerator and denominator polynomials are determined by using Kharitonov's theorem and Routh Approximation Method. The algorithm is simple, rugged and generates stable reduced order interval model for stable original high order interval plants. A numerical example illustrates the effectiveness of proposed algorithm.","PeriodicalId":273164,"journal":{"name":"2011 International Conference on Energy, Automation and Signal","volume":"85 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":"114192795","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}
Pub Date : 2011-12-01DOI: 10.1109/ICEAS.2011.6147208
A. Brazhnikov, I. R. Belozerov
The study of AC inverter drives in the case when the number of their phases is more than four allows to find out some basic laws of these systems which does not manifest themselves when the phase number is equal to three or four. Two previously unknown laws of energy efficiency invariance are established in the field of multiphase (i.e. having the number of phases more than four) AC inverter drives. These laws ignoring leads necessarily to the decrease of the multiphase drive system energy efficiency.
{"title":"Energy efficiency invariance laws acting in the field of multiphase AC inverter drives","authors":"A. Brazhnikov, I. R. Belozerov","doi":"10.1109/ICEAS.2011.6147208","DOIUrl":"https://doi.org/10.1109/ICEAS.2011.6147208","url":null,"abstract":"The study of AC inverter drives in the case when the number of their phases is more than four allows to find out some basic laws of these systems which does not manifest themselves when the phase number is equal to three or four. Two previously unknown laws of energy efficiency invariance are established in the field of multiphase (i.e. having the number of phases more than four) AC inverter drives. These laws ignoring leads necessarily to the decrease of the multiphase drive system energy efficiency.","PeriodicalId":273164,"journal":{"name":"2011 International Conference on Energy, Automation and Signal","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":"114433404","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}
Pub Date : 2011-12-01DOI: 10.1109/ICEAS.2011.6147133
D. Ravilla, V. Sumalatha, P. Reddy
An ad hoc wireless network has a dynamic nature that leads to constant changes in its network topology. As a consequence, the routing problem becomes more complex and challengeable, and it probably is the most addressed and studied problem in ad hoc networks. Based on the routing information update mechanism Ad hoc wireless networks routing protocols are classified into Proactive, Reactive and Hybrid Routing Protocols. Out of these, Hybrid Routing Protocol combines the best futures of the first two categories. The Zone Routing Protocol (ZRP) is one of the hybrid routing protocols in which every network node proactively maintaining routing information about its routing zone, while reactively acquiring routes to destinations beyond the routing zone. In this paper, we proposed the Independent Zone Routing Protocol (IZRP) an enhancement of the Zone Routing Protocol which allows adaptive and distributed configuration for the optimal size of each node's routing zone, on per-node basis. We demonstrate the performance of IZRP with various performance metrics. Furthermore, we compared the performance of IZRP and ZRP by considering performance metrics Packet Delivery Fraction, Normalized Routing Overhead and End-to-End Delay.
{"title":"Performance comparisons of ZRP and IZRP routing protocols for ad hoc wireless networks","authors":"D. Ravilla, V. Sumalatha, P. Reddy","doi":"10.1109/ICEAS.2011.6147133","DOIUrl":"https://doi.org/10.1109/ICEAS.2011.6147133","url":null,"abstract":"An ad hoc wireless network has a dynamic nature that leads to constant changes in its network topology. As a consequence, the routing problem becomes more complex and challengeable, and it probably is the most addressed and studied problem in ad hoc networks. Based on the routing information update mechanism Ad hoc wireless networks routing protocols are classified into Proactive, Reactive and Hybrid Routing Protocols. Out of these, Hybrid Routing Protocol combines the best futures of the first two categories. The Zone Routing Protocol (ZRP) is one of the hybrid routing protocols in which every network node proactively maintaining routing information about its routing zone, while reactively acquiring routes to destinations beyond the routing zone. In this paper, we proposed the Independent Zone Routing Protocol (IZRP) an enhancement of the Zone Routing Protocol which allows adaptive and distributed configuration for the optimal size of each node's routing zone, on per-node basis. We demonstrate the performance of IZRP with various performance metrics. Furthermore, we compared the performance of IZRP and ZRP by considering performance metrics Packet Delivery Fraction, Normalized Routing Overhead and End-to-End Delay.","PeriodicalId":273164,"journal":{"name":"2011 International Conference on Energy, Automation and Signal","volume":"7 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":"125038381","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}
Pub Date : 2011-12-01DOI: 10.1109/ICEAS.2011.6147103
J. Makwana, P. Agarwal, S. P. Srivastava
Now a day's Brushless DC motor (BLDC) and DC motors are being used in most of the Electrical Vehicle. Switched Reluctance Motor (SRM) may become best alternative to BLDS and DC motor in this area because of its constant power output capability, good thermal management and fault tolerance capability. Furthermore SRM having advantages of low weight, high efficiency, small size, low cost and high torque at low speed. The novel simulation approach is used in this paper to analyse the performance of the in-wheel SRM with two separate models of the SRM system and vehicle system. Passive loading scheme is presented to simulate in-wheel SRM drive for an electric vehicle with two separate models of SRM system and vehicle system. Presented scheme can be use for analyse performance of any electric motor as an in-wheel electric motor for an electric vehicle.
{"title":"Novel simulation approach to analyses the performance of in-wheel SRM for an Electrical Vehicle","authors":"J. Makwana, P. Agarwal, S. P. Srivastava","doi":"10.1109/ICEAS.2011.6147103","DOIUrl":"https://doi.org/10.1109/ICEAS.2011.6147103","url":null,"abstract":"Now a day's Brushless DC motor (BLDC) and DC motors are being used in most of the Electrical Vehicle. Switched Reluctance Motor (SRM) may become best alternative to BLDS and DC motor in this area because of its constant power output capability, good thermal management and fault tolerance capability. Furthermore SRM having advantages of low weight, high efficiency, small size, low cost and high torque at low speed. The novel simulation approach is used in this paper to analyse the performance of the in-wheel SRM with two separate models of the SRM system and vehicle system. Passive loading scheme is presented to simulate in-wheel SRM drive for an electric vehicle with two separate models of SRM system and vehicle system. Presented scheme can be use for analyse performance of any electric motor as an in-wheel electric motor for an electric vehicle.","PeriodicalId":273164,"journal":{"name":"2011 International Conference on Energy, Automation and Signal","volume":"129 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":"123368762","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}
Pub Date : 2011-12-01DOI: 10.1109/ICEAS.2011.6147209
A. Marjanian, E. Jafari
In this paper, the goal is the improvement of transient condition in a single-machine system with designing of the nonlinear controllers for static Synchronous Compensator (STATCOM). By obtaining the Lyapunov function in presence of compensator in the system, some controllers are designed for it which by satisfying the Lyapunov stability criteria will increase the margin of transient stability and decrease the oscillation in the single machine system. For single machine with infinite bus (SMIB), three control methods of energy function (EFC), Fuzzy controller (FC) and Neuro-Fuzzy controller (NFC) presented and considered the effect of each of the above mentioned control methods of power system stability enhancement. The results of the simulations confirm the Neuro-Fuzzy controller ability in the improvement of the system transient conditions after occurrence of the fault.
{"title":"Transient stability improvement with Neuro-Fuzzy control of STATCOM in single-machine system","authors":"A. Marjanian, E. Jafari","doi":"10.1109/ICEAS.2011.6147209","DOIUrl":"https://doi.org/10.1109/ICEAS.2011.6147209","url":null,"abstract":"In this paper, the goal is the improvement of transient condition in a single-machine system with designing of the nonlinear controllers for static Synchronous Compensator (STATCOM). By obtaining the Lyapunov function in presence of compensator in the system, some controllers are designed for it which by satisfying the Lyapunov stability criteria will increase the margin of transient stability and decrease the oscillation in the single machine system. For single machine with infinite bus (SMIB), three control methods of energy function (EFC), Fuzzy controller (FC) and Neuro-Fuzzy controller (NFC) presented and considered the effect of each of the above mentioned control methods of power system stability enhancement. The results of the simulations confirm the Neuro-Fuzzy controller ability in the improvement of the system transient conditions after occurrence of the fault.","PeriodicalId":273164,"journal":{"name":"2011 International Conference on Energy, Automation and Signal","volume":"9 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":"129947919","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}
Pub Date : 2011-12-01DOI: 10.1109/ICEAS.2011.6147158
N. Chellammal, Ravitheja Gurram, K. Prasad
This paper presents a three-phase cascaded H-Bridge MLI as Shunt Active Filter intended for installation on industrial and utility of power distribution system is widely accepted and implemented as a solution to the power quality problems in utility, industry and commercial applications. This paper proposes the design of a shunt active power filter under the condition of voltage sag, unbalanced loads. The active power filter, which can be used under the condition of voltage sag, unbalanced or distorted source voltages, can be applicable to compensate the harmonics, reactive and negative sequence currents. The main objective of this paper is to regulate the voltage in distribution systems against any power quality issues like voltage sag, unbalancing and to reduce the harmonics using cascaded multilevel inverter as Shunt active filter.
{"title":"Realization of three phase cascaded H-Bridge multi-level inverter as Shunt Active Filter","authors":"N. Chellammal, Ravitheja Gurram, K. Prasad","doi":"10.1109/ICEAS.2011.6147158","DOIUrl":"https://doi.org/10.1109/ICEAS.2011.6147158","url":null,"abstract":"This paper presents a three-phase cascaded H-Bridge MLI as Shunt Active Filter intended for installation on industrial and utility of power distribution system is widely accepted and implemented as a solution to the power quality problems in utility, industry and commercial applications. This paper proposes the design of a shunt active power filter under the condition of voltage sag, unbalanced loads. The active power filter, which can be used under the condition of voltage sag, unbalanced or distorted source voltages, can be applicable to compensate the harmonics, reactive and negative sequence currents. The main objective of this paper is to regulate the voltage in distribution systems against any power quality issues like voltage sag, unbalancing and to reduce the harmonics using cascaded multilevel inverter as Shunt active filter.","PeriodicalId":273164,"journal":{"name":"2011 International Conference on Energy, Automation and Signal","volume":"394 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":"115991546","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}
Pub Date : 2011-12-01DOI: 10.1109/ICEAS.2011.6147194
Milan Biswal, P. Dash, B. Biswal
An alternate method based on Generalised S-transform (GST) is proposed for identification of harmonic, Inter-harmonic and sub-harmonic frequency in power signals. A selective frequency partitioning with reciprocal signal cropping is introduced to significantly reduce the computational demand of the GST algorithm. The proposed selective frequency partitioning is chosen such that the bins at dominant frequencies are taken into account. Further, a Jacobsen estimator with bias correction is used for the frequency correction. Thus, the proposed method reduces the error caused by the leakage affect in the GST and accurately estimates the harmonic and inter-harmonic frequencies.
{"title":"A fast GST with frequency correction for estimation and tracking of harmonic and inter-harmonic frequencies in power signals","authors":"Milan Biswal, P. Dash, B. Biswal","doi":"10.1109/ICEAS.2011.6147194","DOIUrl":"https://doi.org/10.1109/ICEAS.2011.6147194","url":null,"abstract":"An alternate method based on Generalised S-transform (GST) is proposed for identification of harmonic, Inter-harmonic and sub-harmonic frequency in power signals. A selective frequency partitioning with reciprocal signal cropping is introduced to significantly reduce the computational demand of the GST algorithm. The proposed selective frequency partitioning is chosen such that the bins at dominant frequencies are taken into account. Further, a Jacobsen estimator with bias correction is used for the frequency correction. Thus, the proposed method reduces the error caused by the leakage affect in the GST and accurately estimates the harmonic and inter-harmonic frequencies.","PeriodicalId":273164,"journal":{"name":"2011 International Conference on Energy, Automation and Signal","volume":"4 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":"126422577","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}
Pub Date : 2011-12-01DOI: 10.1109/ICEAS.2011.6147179
D. Deb
In this paper, adaptive control of reliable systems with independently manipulatable similar input factors which are prone to ineffective performance is studied for linear time varying critical decision systems. A multivariable adaptive control scheme is developed for such systems using dynamic coupling technique and specified equilibrium conditions. A reference system is constructed for each operating condition and is switched to when under corresponding operating condition. The proposed technique is a non-probabilistic reliability analysis method. Desired closed-loop stability and asymptotic tracking is ensured thereby validating maintenance of reliability of the overall decision system in presence of performance degradation of some of the factors acting on similar input manipulators.
{"title":"Adaptive control scheme for reliable business systems with asymmetric similar inputs","authors":"D. Deb","doi":"10.1109/ICEAS.2011.6147179","DOIUrl":"https://doi.org/10.1109/ICEAS.2011.6147179","url":null,"abstract":"In this paper, adaptive control of reliable systems with independently manipulatable similar input factors which are prone to ineffective performance is studied for linear time varying critical decision systems. A multivariable adaptive control scheme is developed for such systems using dynamic coupling technique and specified equilibrium conditions. A reference system is constructed for each operating condition and is switched to when under corresponding operating condition. The proposed technique is a non-probabilistic reliability analysis method. Desired closed-loop stability and asymptotic tracking is ensured thereby validating maintenance of reliability of the overall decision system in presence of performance degradation of some of the factors acting on similar input manipulators.","PeriodicalId":273164,"journal":{"name":"2011 International Conference on Energy, Automation and Signal","volume":"16 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":"126432759","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}
Pub Date : 2011-12-01DOI: 10.1109/ICEAS.2011.6147188
Arun Agarwal, S. K. Patra
The Eureka-147 Digital Audio Broadcasting (DAB) system is a new digital radio technology for broadcasting radio stations that provides high-quality audio and data services to both fixed and mobile receivers and employs coded orthogonal frequency division multiplexing (COFDM) technology. In this paper, we present the efficient synchronization method based on Phase reference symbol (PRS) for the DAB signal at the receiver. Since DAB uses OFDM digital transmission technique, the synchronization block plays an important role in determining bit error rate (BER) performance of DAB system in different channels. The result shows that the synchronization method proposed locates precisely each DAB frame even at low signal to noise ratio (SNR), so that the demodulation can be performed frame by frame, symbol by symbol.
{"title":"Receiver synchronization for Digital Audio Broadcasting system based on Phase reference symbol","authors":"Arun Agarwal, S. K. Patra","doi":"10.1109/ICEAS.2011.6147188","DOIUrl":"https://doi.org/10.1109/ICEAS.2011.6147188","url":null,"abstract":"The Eureka-147 Digital Audio Broadcasting (DAB) system is a new digital radio technology for broadcasting radio stations that provides high-quality audio and data services to both fixed and mobile receivers and employs coded orthogonal frequency division multiplexing (COFDM) technology. In this paper, we present the efficient synchronization method based on Phase reference symbol (PRS) for the DAB signal at the receiver. Since DAB uses OFDM digital transmission technique, the synchronization block plays an important role in determining bit error rate (BER) performance of DAB system in different channels. The result shows that the synchronization method proposed locates precisely each DAB frame even at low signal to noise ratio (SNR), so that the demodulation can be performed frame by frame, symbol by symbol.","PeriodicalId":273164,"journal":{"name":"2011 International Conference on Energy, Automation and Signal","volume":"27 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":"126248055","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}
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