Pub Date : 2011-12-01DOI: 10.1109/ICPES.2011.6156663
Nikhil Abraham, Arun P. Parameswaran, R. J. Abraham
This paper deals with automatic generation control of an interconnected thermal non-reheat power system in continuous mode by employing a Thyristor Controlled Series Capacitor (TCSC) in series with the line. Damping of the system frequency and tie-line power oscillations by controlling the reactance of the TCSC is presented. Gain values of the integral controllers are optimised using the integral squared error method by providing a step load disturbance in each of the areas by minimising a quadratic performance index. It is reported that TCSC can dampen the tie-line and power oscillations commendably under sudden load disturbances in any of the areas.
{"title":"Effects of Thyristor Controlled Series Capacitor (TCSC) on oscillations in tie-line power and area frequencies in an interconnected non-reheat thermal power system","authors":"Nikhil Abraham, Arun P. Parameswaran, R. J. Abraham","doi":"10.1109/ICPES.2011.6156663","DOIUrl":"https://doi.org/10.1109/ICPES.2011.6156663","url":null,"abstract":"This paper deals with automatic generation control of an interconnected thermal non-reheat power system in continuous mode by employing a Thyristor Controlled Series Capacitor (TCSC) in series with the line. Damping of the system frequency and tie-line power oscillations by controlling the reactance of the TCSC is presented. Gain values of the integral controllers are optimised using the integral squared error method by providing a step load disturbance in each of the areas by minimising a quadratic performance index. It is reported that TCSC can dampen the tie-line and power oscillations commendably under sudden load disturbances in any of the areas.","PeriodicalId":158903,"journal":{"name":"2011 International Conference on Power and Energy Systems","volume":"199 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":"114656501","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/ICPES.2011.6156672
J. Kumar, B. Das, P. Agarwal
In this paper, a system identification based method is proposed to determine the transfer function of a cascade multilevel inverter STATCOM connected to a distribution system in order to design control system for mitigating voltage fluctuations. The identified model has been used for determining the voltage controller parameters using Ziegler-Nichols technique. The feasibility of the proposed methodology has been validated through digital simulation using MATLAB/SIMULINK on an 11-level cascade multilevel STATCOM under different operating conditions.
{"title":"Indirect voltage control in distribution system using cascade multilevel inverter based STATCOM","authors":"J. Kumar, B. Das, P. Agarwal","doi":"10.1109/ICPES.2011.6156672","DOIUrl":"https://doi.org/10.1109/ICPES.2011.6156672","url":null,"abstract":"In this paper, a system identification based method is proposed to determine the transfer function of a cascade multilevel inverter STATCOM connected to a distribution system in order to design control system for mitigating voltage fluctuations. The identified model has been used for determining the voltage controller parameters using Ziegler-Nichols technique. The feasibility of the proposed methodology has been validated through digital simulation using MATLAB/SIMULINK on an 11-level cascade multilevel STATCOM under different operating conditions.","PeriodicalId":158903,"journal":{"name":"2011 International Conference on Power and Energy Systems","volume":"415 2 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":"123107655","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/ICPES.2011.6156664
S. D. Naik, M. Khedkar, S. Bhat
In heavily loaded systems, voltage stability limit is usually dominant and voltage instability is usually observed following large disturbance. This is typically the case in the deregulated environment as the transmission systems are operating under more stressed condition due to increased transaction level associated with open access. Sufficient attention to voltage stability in deregulated system is not paid as compared to angle stability. More attention is required to be paid to keep voltage profile and hold the voltage stability under control. There are various methods for voltage stability analysis in the literature. In this paper simple voltage stability analysis is carried out for a multi bus power system (IEEE 14 Bus System) using V-Q Sensitivity analysis and modal analysis. A software code is specially written which allows increasing the load on the selected buses simultaneously as well as individually. The changes in V-Q sensitivity and bus participation is studied with simultaneous load increase on the group of buses compared with individual bus load increase. Also the correlation between the voltage sensitivity factor and bus participation factor is established.
{"title":"Correlation and comparison between bus participation factor and voltage sensitivity factor for simultaneous and individual bus load change in multi bus power system","authors":"S. D. Naik, M. Khedkar, S. Bhat","doi":"10.1109/ICPES.2011.6156664","DOIUrl":"https://doi.org/10.1109/ICPES.2011.6156664","url":null,"abstract":"In heavily loaded systems, voltage stability limit is usually dominant and voltage instability is usually observed following large disturbance. This is typically the case in the deregulated environment as the transmission systems are operating under more stressed condition due to increased transaction level associated with open access. Sufficient attention to voltage stability in deregulated system is not paid as compared to angle stability. More attention is required to be paid to keep voltage profile and hold the voltage stability under control. There are various methods for voltage stability analysis in the literature. In this paper simple voltage stability analysis is carried out for a multi bus power system (IEEE 14 Bus System) using V-Q Sensitivity analysis and modal analysis. A software code is specially written which allows increasing the load on the selected buses simultaneously as well as individually. The changes in V-Q sensitivity and bus participation is studied with simultaneous load increase on the group of buses compared with individual bus load increase. Also the correlation between the voltage sensitivity factor and bus participation factor is established.","PeriodicalId":158903,"journal":{"name":"2011 International Conference on Power and Energy Systems","volume":"1 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":"128902936","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/ICPES.2011.6156676
M. K. Elango, A. Nirmal Kumar, K. Duraiswamy
This work presents the investigations carried out on application of Hilbert Huang transform (HHT), back propagation algorithm (BPA), radial basis function(RBF) and locally weighted projection regression (LWPR) for power quality disturbance identification. Features are extracted from the electrical signals by using HHT. HHT method is a combination of empirical mode decomposition (EMD) and Hilbert transform (HT). The output of HT are instantaneous frequency (IF) and instantaneous amplitude (IA). The features obtained from the HHT are unique to each type of electrical fault. These features are normalized and given to the RBF, BPA and LWPR. The data required are collected from textile mills using three phase power quality analyzer at various time durations and places. The performance of the proposed method is compared with the existing feature extraction technique namely Hilbert Transform with Radial Basis Function (HTRBF). The accuracy of results are presented by calculation of percentage error for identification of power quality disturbances, training time duration and testing time duration of algorithms and they are compared with existing algorithm. Simulation results show the effectiveness of the proposed method for power quality disturbance identification.
{"title":"Identification of power quality disturbances using Artificial Neural Networks","authors":"M. K. Elango, A. Nirmal Kumar, K. Duraiswamy","doi":"10.1109/ICPES.2011.6156676","DOIUrl":"https://doi.org/10.1109/ICPES.2011.6156676","url":null,"abstract":"This work presents the investigations carried out on application of Hilbert Huang transform (HHT), back propagation algorithm (BPA), radial basis function(RBF) and locally weighted projection regression (LWPR) for power quality disturbance identification. Features are extracted from the electrical signals by using HHT. HHT method is a combination of empirical mode decomposition (EMD) and Hilbert transform (HT). The output of HT are instantaneous frequency (IF) and instantaneous amplitude (IA). The features obtained from the HHT are unique to each type of electrical fault. These features are normalized and given to the RBF, BPA and LWPR. The data required are collected from textile mills using three phase power quality analyzer at various time durations and places. The performance of the proposed method is compared with the existing feature extraction technique namely Hilbert Transform with Radial Basis Function (HTRBF). The accuracy of results are presented by calculation of percentage error for identification of power quality disturbances, training time duration and testing time duration of algorithms and they are compared with existing algorithm. Simulation results show the effectiveness of the proposed method for power quality disturbance identification.","PeriodicalId":158903,"journal":{"name":"2011 International Conference on Power and Energy Systems","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":"126047374","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/ICPES.2011.6156635
K. Reddy, M. Kumar, B. Singh, M. Suryakalavathi
The paper discusses the coherence function method of fault detection in a power transformer during impulse test. It is based on calculation of neutral current in a transformer on the basis of derived equivalent electrical network of the winding. Turn faults are theoretically simulated in the high voltage coil of 220 KV, 100 MVA winding. The neutral current and its Fourier Transform are calculated for simulated HV coil without and with turn fault. The output of frequency response is subjected to coherence function calculation. The results indicate a higher sensitivity of detection of fault with coherence function compared to that of frequency response. A method to calibrate various types of noise superimposed on impulse voltage is also discussed with a view to explain coherence results obtained above.
{"title":"Coherence function method of detection of fault in a power transformer during impulse test","authors":"K. Reddy, M. Kumar, B. Singh, M. Suryakalavathi","doi":"10.1109/ICPES.2011.6156635","DOIUrl":"https://doi.org/10.1109/ICPES.2011.6156635","url":null,"abstract":"The paper discusses the coherence function method of fault detection in a power transformer during impulse test. It is based on calculation of neutral current in a transformer on the basis of derived equivalent electrical network of the winding. Turn faults are theoretically simulated in the high voltage coil of 220 KV, 100 MVA winding. The neutral current and its Fourier Transform are calculated for simulated HV coil without and with turn fault. The output of frequency response is subjected to coherence function calculation. The results indicate a higher sensitivity of detection of fault with coherence function compared to that of frequency response. A method to calibrate various types of noise superimposed on impulse voltage is also discussed with a view to explain coherence results obtained above.","PeriodicalId":158903,"journal":{"name":"2011 International Conference on Power and Energy Systems","volume":"43 3 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":"130687398","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/ICPES.2011.6156688
Ashish Ranjan Dash, B. Babu, K. Mohanty, R. Dubey
It is the general trend to increase the electricity production using distributed power system (DPGS), which is based on renewable energy sources such as wind, solar, fuel cell etc. These systems are to be properly controlled in order to provide reliable power to the utility network. For that power electronics converters are used as an interfacing device between DPGS and utility network. In case of unbalanced fault, the major problem in distributed power generation system is the phase unbalance which causes the power quality problem along with grid instability. This paper discuses the implementation of two different controllers namely Proportional — integral (PI) and proportional resonant (PR) controllers in order to obtain the control of grid side converter during single phase to ground fault. The analysis includes the grid current harmonic distortion along with the variation of active and reactive power during the fault condition. The system is simulated using MATLAB software and simulation results demonstrate the effectiveness of both the controller.
{"title":"Analysis of PI and PR controllers for distributed power generation system under unbalanced grid faults","authors":"Ashish Ranjan Dash, B. Babu, K. Mohanty, R. Dubey","doi":"10.1109/ICPES.2011.6156688","DOIUrl":"https://doi.org/10.1109/ICPES.2011.6156688","url":null,"abstract":"It is the general trend to increase the electricity production using distributed power system (DPGS), which is based on renewable energy sources such as wind, solar, fuel cell etc. These systems are to be properly controlled in order to provide reliable power to the utility network. For that power electronics converters are used as an interfacing device between DPGS and utility network. In case of unbalanced fault, the major problem in distributed power generation system is the phase unbalance which causes the power quality problem along with grid instability. This paper discuses the implementation of two different controllers namely Proportional — integral (PI) and proportional resonant (PR) controllers in order to obtain the control of grid side converter during single phase to ground fault. The analysis includes the grid current harmonic distortion along with the variation of active and reactive power during the fault condition. The system is simulated using MATLAB software and simulation results demonstrate the effectiveness of both the controller.","PeriodicalId":158903,"journal":{"name":"2011 International Conference on Power and Energy Systems","volume":"225 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":"131473497","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/ICPES.2011.6156626
J. K. Chatterjee, P. Chauhan, P. E. B. Murty, Santi M. Mandal
In this paper a novel scheme for regulation of amplitude and frequency of an autonomous self-excited induction generator (SEIG) terminal voltage under perturbations in shaft speed and connected load has been presented, which does not require voltage and frequency feedback. In this technique, compensation of active and reactive component of SEIG stator phase current using a generalized impedance controller (GIC) provides the regulation of SEIG output. The stator current compensation is different from standard hysteresis current compensation technique. The GIC is a voltage controlled PWM voltage source converter, offering controlled bidirectional flow of active and reactive power, while connected at the PCC via coupling reactance. For wide range of shaft input to the given generator, the relationship between the shaft input and reference amplitude of active and reactive component of SEIG stator phase current, at rated PCC voltage and frequency, is pre-established for proper GIC based compensation. A mathematical model of SEIG-GIC-load integrated system has been developed and simulated in MATLAB/Simulink to demonstrate capability of the generating system to provide voltage and frequency regulated supply, under variety of source and load perturbations.
{"title":"Shaft input adaptive source current compensation based novel voltage and frequency control of autonomous induction generator","authors":"J. K. Chatterjee, P. Chauhan, P. E. B. Murty, Santi M. Mandal","doi":"10.1109/ICPES.2011.6156626","DOIUrl":"https://doi.org/10.1109/ICPES.2011.6156626","url":null,"abstract":"In this paper a novel scheme for regulation of amplitude and frequency of an autonomous self-excited induction generator (SEIG) terminal voltage under perturbations in shaft speed and connected load has been presented, which does not require voltage and frequency feedback. In this technique, compensation of active and reactive component of SEIG stator phase current using a generalized impedance controller (GIC) provides the regulation of SEIG output. The stator current compensation is different from standard hysteresis current compensation technique. The GIC is a voltage controlled PWM voltage source converter, offering controlled bidirectional flow of active and reactive power, while connected at the PCC via coupling reactance. For wide range of shaft input to the given generator, the relationship between the shaft input and reference amplitude of active and reactive component of SEIG stator phase current, at rated PCC voltage and frequency, is pre-established for proper GIC based compensation. A mathematical model of SEIG-GIC-load integrated system has been developed and simulated in MATLAB/Simulink to demonstrate capability of the generating system to provide voltage and frequency regulated supply, under variety of source and load perturbations.","PeriodicalId":158903,"journal":{"name":"2011 International Conference on Power and Energy Systems","volume":"457 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":"124260227","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/ICPES.2011.6156671
C. Naik, P. Kundu
Digital signal processing techniques based power quality analysis has attracted the attention of number of researchers. There are different time frequency techniques like short time Fourier transform (STFT), Continuous Wavelet transform (CWT) and S-transform used for the analysis of power quality disturbances. S-transform is a modified version of CWT with a phase correction. It offers a distinct advantage over the time frequency analysis techniques like CWT and STFT, by giving phase correction and better frequency localization in noisy environment too. In this paper, the identification and classification capabilities of S-transform based analysis is discussed. Short duration disturbances like voltage sag, voltage swell, momentary interruption, harmonics, capacitive switching transient, impulsive transient, transformer energizing are simulated using MATLAB and analyzed using S-transform. A combination of voltage swell, harmonics and capacitive switching events occurring simultaneously is also simulated and analyzed. A parameter based on the average of S magnitudes is calculated and its variations with respect to time for different power quality disturbances are analyzed for identification.
{"title":"Identification of short duration power quality disturbances employing S-transform","authors":"C. Naik, P. Kundu","doi":"10.1109/ICPES.2011.6156671","DOIUrl":"https://doi.org/10.1109/ICPES.2011.6156671","url":null,"abstract":"Digital signal processing techniques based power quality analysis has attracted the attention of number of researchers. There are different time frequency techniques like short time Fourier transform (STFT), Continuous Wavelet transform (CWT) and S-transform used for the analysis of power quality disturbances. S-transform is a modified version of CWT with a phase correction. It offers a distinct advantage over the time frequency analysis techniques like CWT and STFT, by giving phase correction and better frequency localization in noisy environment too. In this paper, the identification and classification capabilities of S-transform based analysis is discussed. Short duration disturbances like voltage sag, voltage swell, momentary interruption, harmonics, capacitive switching transient, impulsive transient, transformer energizing are simulated using MATLAB and analyzed using S-transform. A combination of voltage swell, harmonics and capacitive switching events occurring simultaneously is also simulated and analyzed. A parameter based on the average of S magnitudes is calculated and its variations with respect to time for different power quality disturbances are analyzed for identification.","PeriodicalId":158903,"journal":{"name":"2011 International Conference on Power and Energy Systems","volume":"49 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":"116332309","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/ICPES.2011.6156686
D. Surendra, K. Shubhanga
In this paper, features of a power system laboratory supported by real-time systems are outlined. These real-time systems are built using an open-source RTAI-Linux which not only offers a general purpose operating system features, but also has the hard real-time capabilities. On such a platform a transient waveform recorder is developed to capture the transient behaviour of a synchronous machine under various operating conditions such as voltage buildup and sudden 3-phase symmetrical short-circuit. Using the recorded transient waveforms, a synchronous machine model development task is carried out as per the IEEE Std. 115–2009 specified procedures. Employing such a model a time-domain simulation programme is run to tune the model parameters of the machine by comparing the simulation results against the recorded waveforms. It is also found that the transient waveform recorder provides a useful tool to visualize the synchronization and loss-of-synchronism transients either with the mains supply or with another machine. As an additional application, an open-loop excitation controller for a synchronous machine is developed which involved the realization of many hardware circuits such as inverse-cosine firing-circuit module, single-phase thyristor bridge-rectifier circuits and a DAC interfacing card. Such a laboratory is found to augment the classroom teaching of a power system dynamics course.
{"title":"Development of a power system laboratory supported by real-time systems","authors":"D. Surendra, K. Shubhanga","doi":"10.1109/ICPES.2011.6156686","DOIUrl":"https://doi.org/10.1109/ICPES.2011.6156686","url":null,"abstract":"In this paper, features of a power system laboratory supported by real-time systems are outlined. These real-time systems are built using an open-source RTAI-Linux which not only offers a general purpose operating system features, but also has the hard real-time capabilities. On such a platform a transient waveform recorder is developed to capture the transient behaviour of a synchronous machine under various operating conditions such as voltage buildup and sudden 3-phase symmetrical short-circuit. Using the recorded transient waveforms, a synchronous machine model development task is carried out as per the IEEE Std. 115–2009 specified procedures. Employing such a model a time-domain simulation programme is run to tune the model parameters of the machine by comparing the simulation results against the recorded waveforms. It is also found that the transient waveform recorder provides a useful tool to visualize the synchronization and loss-of-synchronism transients either with the mains supply or with another machine. As an additional application, an open-loop excitation controller for a synchronous machine is developed which involved the realization of many hardware circuits such as inverse-cosine firing-circuit module, single-phase thyristor bridge-rectifier circuits and a DAC interfacing card. Such a laboratory is found to augment the classroom teaching of a power system dynamics course.","PeriodicalId":158903,"journal":{"name":"2011 International Conference on Power and Energy Systems","volume":"185 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":"122569567","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/ICPES.2011.6156642
M. Naik, J. Amarnath, S. Kamakshiah, A. Varaprasadarao
In this paper application of functionally gradient material (FGM) for optimized design of single phase gas insulated bus duct. Modeling of cone spacer in SF6 gas insulated substation (GIS) bus duct and extensive electrostatic field stress distribution analyses using Finite Element Method (FEM) is illustrated in this paper. A unique feature of this design is the simulation of electric field distribution on cone insulator with varying relative permittivity εr for supporting high voltage bus duct. The electric field distribution over homogeneous insulator and FGM insulator with optimized relative permittivity distribution is explored with analyses results.
{"title":"Computation of electric field of 100kV FGM spacer for gas insulated bus duct applications","authors":"M. Naik, J. Amarnath, S. Kamakshiah, A. Varaprasadarao","doi":"10.1109/ICPES.2011.6156642","DOIUrl":"https://doi.org/10.1109/ICPES.2011.6156642","url":null,"abstract":"In this paper application of functionally gradient material (FGM) for optimized design of single phase gas insulated bus duct. Modeling of cone spacer in SF6 gas insulated substation (GIS) bus duct and extensive electrostatic field stress distribution analyses using Finite Element Method (FEM) is illustrated in this paper. A unique feature of this design is the simulation of electric field distribution on cone insulator with varying relative permittivity εr for supporting high voltage bus duct. The electric field distribution over homogeneous insulator and FGM insulator with optimized relative permittivity distribution is explored with analyses results.","PeriodicalId":158903,"journal":{"name":"2011 International Conference on Power and Energy Systems","volume":"61 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":"114689485","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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