{"title":"A comparative analysis of passive filters for power quality improvement","authors":"Anil Baitha, N. Gupta","doi":"10.1109/TAPENERGY.2015.7229640","DOIUrl":"https://doi.org/10.1109/TAPENERGY.2015.7229640","url":null,"abstract":"This paper presents the design procedure of shunt passive filters for improving power quality by eliminating harmonic distortion caused by non-linear loads. The passive filters include single tuned passive filter (STPF) and double tuned passive filter (DTPF) are considered for analysis purpose. In the design of filters, the parameters of passive elements are obtained for 5th, 7th, 11th and 13th harmonic order component. The DTPF is more effective in removal of harmonic distortion while compared with STPF. The simulation of proposed system is done in the MATLAB/Simulink environment. The various results are satisfied under IEEE- 519 harmonic standard limits.","PeriodicalId":6552,"journal":{"name":"2015 International Conference on Technological Advancements in Power and Energy (TAP Energy)","volume":"98 1","pages":"327-332"},"PeriodicalIF":0.0,"publicationDate":"2015-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86288827","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}
P. Anju, Uma Syamkumar, A. Gopinath, B. Jaya, M. N. Namboothiripad
{"title":"Multiphase motor based electromechanical actuator for engine gimbal control -prospects & challenges","authors":"P. Anju, Uma Syamkumar, A. Gopinath, B. Jaya, M. N. Namboothiripad","doi":"10.1109/TAPENERGY.2015.7229585","DOIUrl":"https://doi.org/10.1109/TAPENERGY.2015.7229585","url":null,"abstract":"The paper presents a multiphase BLDC motor based electromechanical actuator system for higher capability engine gimbal control applications. The scheme proposed is based on the inherent advantages of the multiphase system together with the requirements of higher power capability actuation system. The paper details the generation of trapezoidal commutation logic for a five phase motor. The modeling of a five phase BLDC motor with sinusoidal back emf and its validation in closed loop as a position servo system is performed in MATLAB/SIMULINK. The evaluation of the inherent fault tolerant capability of the five phase motor based electromechanical actuator is also validated through simulations and the results are highlighted. The hardware implementation of the five phase BLDC motor drive is carried out and the experimental results are presented.","PeriodicalId":6552,"journal":{"name":"2015 International Conference on Technological Advancements in Power and Energy (TAP Energy)","volume":"1 1","pages":"12-17"},"PeriodicalIF":0.0,"publicationDate":"2015-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88982732","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":"Stability analysis of off shore marine current farm connected to grid","authors":"Satendra Kr Singh Kushwaha, S. T. Nagarajan","doi":"10.1109/TAPENERGY.2015.7229664","DOIUrl":"https://doi.org/10.1109/TAPENERGY.2015.7229664","url":null,"abstract":"This paper presents transient stability analysis of an offshore marine-current farm (MCF) connected to an onshore power grid through conventional ac transmission line and high voltage direct current (HVDC) link. Performances of the studied MCF with SCIG have been analysed in time domain with DIgSILENT Power factory software. A comparison of stability performance of MCF with AC line and HVDC link has been conducted. From this analysis it has been observed that the steady-state and transient stability of MCF is considerably improved with HVDC Link.","PeriodicalId":6552,"journal":{"name":"2015 International Conference on Technological Advancements in Power and Energy (TAP Energy)","volume":"31 1","pages":"466-471"},"PeriodicalIF":0.0,"publicationDate":"2015-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87695565","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":"Voltage stability enhancement during excess load increments through optimal location of UPFC devices","authors":"Aniruddha Ray, J. Chandle","doi":"10.1109/TAPENERGY.2015.7229660","DOIUrl":"https://doi.org/10.1109/TAPENERGY.2015.7229660","url":null,"abstract":"Modern power systems are subjected to widespread line failures due to excess load demands, leading to voltage instability and voltage collapse. The objective of this paper is to study the application of Unified Power Flow Controller (UPFC) devices in improving voltage profile and controlling the power flowing through the transmission lines during excess load increments. Voltage Stability Analysis of the network is carried out by computing the eigen values of the power system reduced Jacobian matrix for each case of load increments before and after placing the UPFC device in the system. The line outage for which we get maximum number of critical eigen values is termed as the critical line outage. Voltage Stability Index is computed for each line corresponding to this critical outage. The line which has got the highest VSI for the critical outage is called as the critical line which indicates the optimal location of UPFC device. After placing the UPFC device on the critical line, the voltage magnitudes of the severely affected buses for this critical load increments is compared with those magnitudes during the critical outage.. The proposed approach is demonstrated on the IEEE 14 bus system in Matlab PSAT( Power system analysis Toolbox) software. The results obtained shows that UPFC devices improves the voltage profile of the buses and controls both active and reactive power flows across the transmission lines thus, preventing their outages during excess load demands and making the power system network voltage stable.","PeriodicalId":6552,"journal":{"name":"2015 International Conference on Technological Advancements in Power and Energy (TAP Energy)","volume":"24 1","pages":"443-448"},"PeriodicalIF":0.0,"publicationDate":"2015-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90900614","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":"High efficiency control algorithm for power factor correction in air-conditioners","authors":"G. Satish, V. Srikanth","doi":"10.1109/TAPENERGY.2015.7229661","DOIUrl":"https://doi.org/10.1109/TAPENERGY.2015.7229661","url":null,"abstract":"The quality of power is degrading day by day due to heavy use of non-linear loads. Power factor is a measure of effectiveness of electricity usage. AC-DC converters are modified to operate as power factor correction circuit In this paper, a novel control algorithm is developed to provide power factor correction(PFC) of air condition loads so as to optimize its operation. Novel algorithm also aims at controlling the output voltage and speed of compressor motor. Proposed design provides a simple, compact and low cost converter with low voltage stresses. This paper presents the evaluation of a constant frequency active clamped flyback converter for PFC. The work is simulated and analyzed in MATLAB.","PeriodicalId":6552,"journal":{"name":"2015 International Conference on Technological Advancements in Power and Energy (TAP Energy)","volume":"26 1","pages":"449-453"},"PeriodicalIF":0.0,"publicationDate":"2015-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90776351","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 Neural Network based power quality signal classification system using wavelet energy distribution","authors":"P. Sebastian, Pramod Antony DSa","doi":"10.1109/TAPENERGY.2015.7229617","DOIUrl":"https://doi.org/10.1109/TAPENERGY.2015.7229617","url":null,"abstract":"This paper presents a method for the classification of common Power Quality(PQ) events. The described system for the characterization of disturbances is based on wavelet based feature extraction. The amount of data to be analyzed and how the data can be interpreted are of crucial importance in power quality analysis. Wavelet Transform(WT) has been widely used in power quality signal analysis. The advantage of wavelet transform is it can provide precise time information of power quality events and has many advantages over traditional signal analysis approaches. In this paper Discrete Wavelet Transform(DWT) is used for obtaining the energy distribution from simulated signals. The system is developed with Neural Network which is an effective tool in classification of signals in power systems.","PeriodicalId":6552,"journal":{"name":"2015 International Conference on Technological Advancements in Power and Energy (TAP Energy)","volume":"6 1","pages":"199-204"},"PeriodicalIF":0.0,"publicationDate":"2015-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89704669","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":"Quadrilateral relay based distance protection scheme for transmission lines under varying system conditions","authors":"S. Aneesh, T. S. Angel","doi":"10.1109/TAPENERGY.2015.7229589","DOIUrl":"https://doi.org/10.1109/TAPENERGY.2015.7229589","url":null,"abstract":"Quadrilateral relay provides flexible protection during high fault resistance of ground and phase faults. This is advantageous for protection of phase-to-earth faults on short lines, non-effectively earthed systems and feeders with extremely high tower footing resistance. It also provides fault impedance coverage for both phase to phase and phase to ground faults. The proposed work intends the development of a numerical quadrilateral distance relay that can retain its function even under a major change in system configuration. The proposed relaying scheme is analyzed by coding the relay logic and simulating the system with transmission network in MATLAB/Simulink. Different factors influencing the performance of quadrilateral relay are studied and verified. It is observed that the scheme is adaptive to the system variations and mal trips are reduced.","PeriodicalId":6552,"journal":{"name":"2015 International Conference on Technological Advancements in Power and Energy (TAP Energy)","volume":"21 1","pages":"35-39"},"PeriodicalIF":0.0,"publicationDate":"2015-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89739820","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":"Sepic PFC converter with notch filter based control","authors":"B. Sreekala, P. Seema","doi":"10.1109/TAPENERGY.2015.7229624","DOIUrl":"https://doi.org/10.1109/TAPENERGY.2015.7229624","url":null,"abstract":"Sepic power factor correction converters are used now days to reduce the second stage in a two-stage PFC preregulator. Moreover the problem of inverted output voltage can also avoided. But the PFC converters, due to nonlinear effects will create line frequency instabilities and subharmonic oscillations in the line current. This can adversely affect the system and shorten its lifetime. So to avoid these problems a novel control technique has been proposed. A second order Notch filter can be incorporated into the outer voltage compensation loop. The suitable notch gain and quality factor helps to suppress the instabilities and THD in line current and thus enhance the stability of the system. The system has been designed in MATLAB/Simulink software and the performance of control scheme has been verified.","PeriodicalId":6552,"journal":{"name":"2015 International Conference on Technological Advancements in Power and Energy (TAP Energy)","volume":"28 1","pages":"239-243"},"PeriodicalIF":0.0,"publicationDate":"2015-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81721091","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":"Bidirectional buck-boost cascade inverter","authors":"C. V. Krishnapriya, Sreeja Kochuvila, S. Lekshmi","doi":"10.1109/TAPENERGY.2015.7229602","DOIUrl":"https://doi.org/10.1109/TAPENERGY.2015.7229602","url":null,"abstract":"This paper presents modelling and closed loop control of bidirectional buck boost cascade inverter, which produces an ac output voltage larger than the dc input voltage. The bidirectional inverter is seen as the cascade of a buck stage and a boost stage. The function of buck stage is to maintain main inductor current as a constant value and boost stage is a Current Source Inverter (CSI), which regulates the output voltage. A decoupled analog control scheme is used for inductor current control and output voltage control.","PeriodicalId":6552,"journal":{"name":"2015 International Conference on Technological Advancements in Power and Energy (TAP Energy)","volume":"32 1","pages":"114-120"},"PeriodicalIF":0.0,"publicationDate":"2015-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82949570","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":"Investigations on stability of a hybrid series compensated system with SSSC - ES","authors":"H. V. Gururaja Rao, N. Prabhu, R. Mala","doi":"10.1109/TAPENERGY.2015.7229593","DOIUrl":"https://doi.org/10.1109/TAPENERGY.2015.7229593","url":null,"abstract":"A static synchronous series compensator equipped with energy storage (SSSC- ES) can provide two degrees of freedom to handle real and reactive power flow through a line. This paper focusses on developing the DQ model of a series compensated system incorporating static synchronous series compensator with energy storage and performing linear analysis. The effect of emulated resistance and reactance by SSSC-ES on system stability is investigated. Eigenvalue and damping torque analysis are carried out and performance of various controllers of SSSC-ES on stability is analyzed.","PeriodicalId":6552,"journal":{"name":"2015 International Conference on Technological Advancements in Power and Energy (TAP Energy)","volume":"7 1","pages":"57-64"},"PeriodicalIF":0.0,"publicationDate":"2015-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84797272","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}