Pub Date : 2011-12-01DOI: 10.1109/ICPES.2011.6156674
S. Srivastava, Astha Manaktala, Kamayani Sadhwani, M. Gupta
This paper deals with the application of a optimization technique inspired by natural evolution, namely Genetic Algorithm (GA) for the design of Fractional order Proportional and Integral (FOPI) based DSTATCOM (Distributed Static Compensator) and ELC (Electronic Load Controller). The GA technique helps search efficiently the optimal parameters of the FOPI controller. Conventional controllers use integral order control which is less robust as compared to fractional order control. This paper is based on a novel application of fractional order controller optimized by genetic algorithm for power quality improvement using DSTATCOM and ELC in a power system. With the help of modelling carried out in a MATLAB based environment and a set of simulation results, the superiority of the designed FOPI over PI (Proportional — Integral) based DSTATCOM and ELC controllers used in power distribution system is affirmed and a comparative study in terms of overshoots and undershoots is presented.
{"title":"On comparing the performance of Genetic Algorithm optimized PI and fractional order PI controller for power quality enhancement","authors":"S. Srivastava, Astha Manaktala, Kamayani Sadhwani, M. Gupta","doi":"10.1109/ICPES.2011.6156674","DOIUrl":"https://doi.org/10.1109/ICPES.2011.6156674","url":null,"abstract":"This paper deals with the application of a optimization technique inspired by natural evolution, namely Genetic Algorithm (GA) for the design of Fractional order Proportional and Integral (FOPI) based DSTATCOM (Distributed Static Compensator) and ELC (Electronic Load Controller). The GA technique helps search efficiently the optimal parameters of the FOPI controller. Conventional controllers use integral order control which is less robust as compared to fractional order control. This paper is based on a novel application of fractional order controller optimized by genetic algorithm for power quality improvement using DSTATCOM and ELC in a power system. With the help of modelling carried out in a MATLAB based environment and a set of simulation results, the superiority of the designed FOPI over PI (Proportional — Integral) based DSTATCOM and ELC controllers used in power distribution system is affirmed and a comparative study in terms of overshoots and undershoots is presented.","PeriodicalId":158903,"journal":{"name":"2011 International Conference on Power and Energy Systems","volume":"101 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":"116104480","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.2011.6156680
K. Patil, W. Gandhare
In the recent years due to the increased use of nonlinear loads, harmonic pollution level in distribution systems has been increased beyond the tolerable limits. This has caused many problems for distribution system components, such as additional losses and hence additional heating. Also, now, due to number of technical, environmental and social issues, the use of power cables; especially cross linked polyethylene (XLPE) power cables, is increasing at very rapid rate. Thus, power system harmonics problem and the use of XLPE power cables in distribution systems are growing simultaneously. Harmonics present in the distribution systems causes additional temperature rise and hence loss of useful life of XLPE power cables. The aim of this paper is to evaluate the effects of harmonics in distribution systems on the temperature rise and useful life of XLPE power cables. A mathematical model of XLPE power cable is developed for evaluation of effects of harmonics on temperature rise and Arrhenius equation is used to evaluate the effects of harmonics on useful life of XLPE power cables. MATLAB program is developed to implement mathematical model and to solve Arrhenius equation for real life XLPE power cables having aluminium and copper conductors. The results are presented and conclusions are drawn.
{"title":"Effects of harmonics in distribution systems on temperature rise and life of XLPE power cables","authors":"K. Patil, W. Gandhare","doi":"10.1109/ICPES.2011.6156680","DOIUrl":"https://doi.org/10.1109/ICPES.2011.6156680","url":null,"abstract":"In the recent years due to the increased use of nonlinear loads, harmonic pollution level in distribution systems has been increased beyond the tolerable limits. This has caused many problems for distribution system components, such as additional losses and hence additional heating. Also, now, due to number of technical, environmental and social issues, the use of power cables; especially cross linked polyethylene (XLPE) power cables, is increasing at very rapid rate. Thus, power system harmonics problem and the use of XLPE power cables in distribution systems are growing simultaneously. Harmonics present in the distribution systems causes additional temperature rise and hence loss of useful life of XLPE power cables. The aim of this paper is to evaluate the effects of harmonics in distribution systems on the temperature rise and useful life of XLPE power cables. A mathematical model of XLPE power cable is developed for evaluation of effects of harmonics on temperature rise and Arrhenius equation is used to evaluate the effects of harmonics on useful life of XLPE power cables. MATLAB program is developed to implement mathematical model and to solve Arrhenius equation for real life XLPE power cables having aluminium and copper conductors. The results are presented and conclusions are drawn.","PeriodicalId":158903,"journal":{"name":"2011 International Conference on Power and Energy Systems","volume":"31 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":"116919821","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.2011.6156613
K. C. Bhuyan, K. Mahapatra
This paper presents a comprehensive non-linear dynamic model of a solid oxide fuel cell (SOFC) that can be used for transient behaviors studies. The model based on electrochemical and thermal equations, accounts for temperature dynamics and output voltage losses. The relaxation time is strongly related to the transient temperature distribution of the solid oxide fuel cell structure. Therefore, it is in the order of some minutes depending on the design parameters and the operating conditions. The model contains the hydrogen, oxygen and water block separately. Other blocks are concentration, activation and ohmic losses block. The analytical details of how active and reactive power output of a stand-alone solid oxide fuel cell power plant (FCPP) is controlled. This analysis depends on an integrated dynamic model of the entire power plant including the reformer.
{"title":"An intelligent control of solid oxide fuel cell voltage","authors":"K. C. Bhuyan, K. Mahapatra","doi":"10.1109/ICPES.2011.6156613","DOIUrl":"https://doi.org/10.1109/ICPES.2011.6156613","url":null,"abstract":"This paper presents a comprehensive non-linear dynamic model of a solid oxide fuel cell (SOFC) that can be used for transient behaviors studies. The model based on electrochemical and thermal equations, accounts for temperature dynamics and output voltage losses. The relaxation time is strongly related to the transient temperature distribution of the solid oxide fuel cell structure. Therefore, it is in the order of some minutes depending on the design parameters and the operating conditions. The model contains the hydrogen, oxygen and water block separately. Other blocks are concentration, activation and ohmic losses block. The analytical details of how active and reactive power output of a stand-alone solid oxide fuel cell power plant (FCPP) is controlled. This analysis depends on an integrated dynamic model of the entire power plant including the reformer.","PeriodicalId":158903,"journal":{"name":"2011 International Conference on Power and Energy Systems","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":"116167418","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.2011.6156620
S. Ravichandran, S. Dasan, R. Devi
Distributed Generation is a small source of electric power conversion from non-conventional energy sources such as Photo Voltaic system (PV), wind, Fuel cell etc. Small signal stability analysis is very much essential to study the inter-area and intra area oscillations which normally exist in a power system. But, it leads to unstable operation when small disturbances are applied. Normally, mechanical part of a synchronous system is intrinsically prone to weakly damped oscillations and the damping of these oscillations must come from other sources, such as damper windings and the machine's controllers. Because power system oscillations have frequencies in the order of a few Hz and of rather small amplitude, hardly any damping is provided by the damper windings, leaving the controllers and the rest of the power system as the main contributors to the damping of the rotor speed oscillations. So in this paper, Power system stabilizer (PSS) is used for providing damping torque. This paper examines the effect of PV sources on small signal stability conditions of conventional power system with Synchronous Generators (SG) along with PSS. Eigen value analysis is conducted after developing a Differential-Algebraic model (DAE) in power balance form and tested on a modified 3 synchronous machine − 9 bus system [10] with PV converters.
{"title":"Small signal stability analysis of grid connected Photo Voltaic distributed generator system","authors":"S. Ravichandran, S. Dasan, R. Devi","doi":"10.1109/ICPES.2011.6156620","DOIUrl":"https://doi.org/10.1109/ICPES.2011.6156620","url":null,"abstract":"Distributed Generation is a small source of electric power conversion from non-conventional energy sources such as Photo Voltaic system (PV), wind, Fuel cell etc. Small signal stability analysis is very much essential to study the inter-area and intra area oscillations which normally exist in a power system. But, it leads to unstable operation when small disturbances are applied. Normally, mechanical part of a synchronous system is intrinsically prone to weakly damped oscillations and the damping of these oscillations must come from other sources, such as damper windings and the machine's controllers. Because power system oscillations have frequencies in the order of a few Hz and of rather small amplitude, hardly any damping is provided by the damper windings, leaving the controllers and the rest of the power system as the main contributors to the damping of the rotor speed oscillations. So in this paper, Power system stabilizer (PSS) is used for providing damping torque. This paper examines the effect of PV sources on small signal stability conditions of conventional power system with Synchronous Generators (SG) along with PSS. Eigen value analysis is conducted after developing a Differential-Algebraic model (DAE) in power balance form and tested on a modified 3 synchronous machine − 9 bus system [10] with PV converters.","PeriodicalId":158903,"journal":{"name":"2011 International Conference on Power and Energy Systems","volume":"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":"116491058","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.2011.6156628
Noel Richard Merritt, D. Chatterjee
This paper discusses the applicability of Hybrid Power Flow Controller (HPFC) as an alternative to Unified Power Flow Controller (UPFC) for improvement of power system performance. UPFC is a flexible AC transmission system (FACTS) device containing two switching converters, one in series and one in shunt. To configure the HPFC, one of the switching converters of the UPFC is replaced by thyristor controlled variable impedances, thus reducing the cost. In this paper, the HPFC has been configured by multilevel Voltage Source Converter (VSC) used for the shunt compensation branches and a thyristor controlled variable impedance used for series compensation. It is shown that with suitable control the HPFC can inject a voltage of required magnitude in series with the line at any desired angle, just like UPFC. This helps in providing compensation equivalent to UPFC and improving the steady state stability limits of the power system.
{"title":"Performance improvement of power systems using Hybrid Power Flow Controller","authors":"Noel Richard Merritt, D. Chatterjee","doi":"10.1109/ICPES.2011.6156628","DOIUrl":"https://doi.org/10.1109/ICPES.2011.6156628","url":null,"abstract":"This paper discusses the applicability of Hybrid Power Flow Controller (HPFC) as an alternative to Unified Power Flow Controller (UPFC) for improvement of power system performance. UPFC is a flexible AC transmission system (FACTS) device containing two switching converters, one in series and one in shunt. To configure the HPFC, one of the switching converters of the UPFC is replaced by thyristor controlled variable impedances, thus reducing the cost. In this paper, the HPFC has been configured by multilevel Voltage Source Converter (VSC) used for the shunt compensation branches and a thyristor controlled variable impedance used for series compensation. It is shown that with suitable control the HPFC can inject a voltage of required magnitude in series with the line at any desired angle, just like UPFC. This helps in providing compensation equivalent to UPFC and improving the steady state stability limits of the power system.","PeriodicalId":158903,"journal":{"name":"2011 International Conference on Power and Energy Systems","volume":"19 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":"123828136","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.2011.6156629
Snehal Unde, S. Dambhare
Mutual coupling effect makes the protection of parallel transmission lines a quite challenging problem. Recent work shows that current differential protection can be a better option for protection of transmission lines due to its selectivity and sensitivity. In this paper we explore a current differential protection scheme for mutually coupled lines considering line charging current. Global Positioning System (GPS) is used for synchronized current and voltage measurements. The differential function is developed using equivalent-π model for transmission line and phase coordinate approach. Simulations are carried out in ATP/EMTP environment on a parallel two terminal transmission system. Results show the superiority of scheme.
{"title":"GPS synchronized current differential protection of mutually coupled line","authors":"Snehal Unde, S. Dambhare","doi":"10.1109/ICPES.2011.6156629","DOIUrl":"https://doi.org/10.1109/ICPES.2011.6156629","url":null,"abstract":"Mutual coupling effect makes the protection of parallel transmission lines a quite challenging problem. Recent work shows that current differential protection can be a better option for protection of transmission lines due to its selectivity and sensitivity. In this paper we explore a current differential protection scheme for mutually coupled lines considering line charging current. Global Positioning System (GPS) is used for synchronized current and voltage measurements. The differential function is developed using equivalent-π model for transmission line and phase coordinate approach. Simulations are carried out in ATP/EMTP environment on a parallel two terminal transmission system. Results show the superiority of scheme.","PeriodicalId":158903,"journal":{"name":"2011 International Conference on Power and Energy Systems","volume":"140 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":"122603138","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.2011.6156632
A. Sai, Sachin Srivastava, S. Ganesan, Suresh Maturu
Delta-Star transformer configuration is commonly used in power systems for voltage transformation. When distance relays are used to detect faults through these Delta-Star transformers, the measurement of apparent impedance seen from delta side is more complicated than that seen on the star side. However, this can be analyzed using sequence components and networks in a systematic way. The results so achieved can be used to set protective relays and analyze their behavior and would be a good source of reference for engineers studying and practicing power systems.
{"title":"Apparent impedance seen at generator terminal for faults on HV side of Delta-Star generator transformer","authors":"A. Sai, Sachin Srivastava, S. Ganesan, Suresh Maturu","doi":"10.1109/ICPES.2011.6156632","DOIUrl":"https://doi.org/10.1109/ICPES.2011.6156632","url":null,"abstract":"Delta-Star transformer configuration is commonly used in power systems for voltage transformation. When distance relays are used to detect faults through these Delta-Star transformers, the measurement of apparent impedance seen from delta side is more complicated than that seen on the star side. However, this can be analyzed using sequence components and networks in a systematic way. The results so achieved can be used to set protective relays and analyze their behavior and would be a good source of reference for engineers studying and practicing power systems.","PeriodicalId":158903,"journal":{"name":"2011 International Conference on Power and Energy Systems","volume":"8 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":"125374874","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.2011.6156606
P. S. Varma, V. Sankar
This paper focuses on the transmission cost allocation procedures with and with out real power transmission losses and provides a comparison of two alternative methodologies; Flat Rate based method i.e., Postage Stamp (PS) Method and Power Flow based method i.e., Proportional Sharing Principle (PSP) Method. Algorithms have been developed and implemented for cost allocation based on these two methods. These two methodologies are illustrated on sample 3-bus system and IEEE-24 bus system. The simulation results obtained from the MATLAB program are analyzed.
{"title":"Transmission cost allocation with and with out losses in restructured power system","authors":"P. S. Varma, V. Sankar","doi":"10.1109/ICPES.2011.6156606","DOIUrl":"https://doi.org/10.1109/ICPES.2011.6156606","url":null,"abstract":"This paper focuses on the transmission cost allocation procedures with and with out real power transmission losses and provides a comparison of two alternative methodologies; Flat Rate based method i.e., Postage Stamp (PS) Method and Power Flow based method i.e., Proportional Sharing Principle (PSP) Method. Algorithms have been developed and implemented for cost allocation based on these two methods. These two methodologies are illustrated on sample 3-bus system and IEEE-24 bus system. The simulation results obtained from the MATLAB program are analyzed.","PeriodicalId":158903,"journal":{"name":"2011 International Conference on Power and Energy Systems","volume":"90 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":"116085657","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.2011.6156611
Patil SangitaB, S. Deshmukh
The penetration of wind energy has been encouraged significantly throughout the world. The wind power is a clean, inexhaustible, and almost a free source of energy. But the integration of wind parks with the power grid has resulted in many challenges for the unity in terms of commitment and control of power plants. As wind speed and wind direction fluctuate frequently, the accurate long-term and short-term forecasting of wind speed is important for ascertaining the wind power generation availability. To deal with wind speed forecasting, many methods have been developed such as physical method, which use lots of physical considerations to reach the best forecasting precision and other is the statistical method, which specializes in finding the relationship of the measured power data. Wind speed can be predicted by using time series analysis, artificial neural network, Kalman Filter method, linear prediction method, spatial correlation models and wavelet, also by using the support vector machines. In this paper, the SVM is used for day ahead prediction of wind speed using historical data of wind speed at site. It is observed that the Mean Absolute Percentage Error (MAPE) is around 7% and correlation coefficient is close to 1. This justifies the ability of SVM for wind speed prediction task.
{"title":"Use of support vector machine for wind speed prediction","authors":"Patil SangitaB, S. Deshmukh","doi":"10.1109/ICPES.2011.6156611","DOIUrl":"https://doi.org/10.1109/ICPES.2011.6156611","url":null,"abstract":"The penetration of wind energy has been encouraged significantly throughout the world. The wind power is a clean, inexhaustible, and almost a free source of energy. But the integration of wind parks with the power grid has resulted in many challenges for the unity in terms of commitment and control of power plants. As wind speed and wind direction fluctuate frequently, the accurate long-term and short-term forecasting of wind speed is important for ascertaining the wind power generation availability. To deal with wind speed forecasting, many methods have been developed such as physical method, which use lots of physical considerations to reach the best forecasting precision and other is the statistical method, which specializes in finding the relationship of the measured power data. Wind speed can be predicted by using time series analysis, artificial neural network, Kalman Filter method, linear prediction method, spatial correlation models and wavelet, also by using the support vector machines. In this paper, the SVM is used for day ahead prediction of wind speed using historical data of wind speed at site. It is observed that the Mean Absolute Percentage Error (MAPE) is around 7% and correlation coefficient is close to 1. This justifies the ability of SVM for wind speed prediction task.","PeriodicalId":158903,"journal":{"name":"2011 International Conference on Power and Energy Systems","volume":"53 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120988611","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.2011.6156655
M. K. Shashidhara, K. Shubhanga
In this paper, behavioural aspects of two types of power system stabilizers (PSS), i.e., a slip-signal PSS and a Delta-P-Omega PSS are studied in a fixed series capacitor compensated system employing the IEEE first benchmark system for SSR study. The well-known slip-signal-torsional interaction is studied to understand its dependency on the magnitude of network compensation. From such a study it is noted that the slip-signal-interaction is prominent only at higher degree of line compensation. It is also shown that Delta-P-Omega PSS is immune to such torsional interactions. Further, using the eigenvalue-based study, the swing-mode damping performance of slip-signal PSS and Delta-P-Omega PSS are studied when a system is series compensated. This study not only demonstrated the superiority of Delta-P-Omega PSS, but also validated the poor performance of slip-signal PSS. All these observations are verified by carrying out simulations on PSCAD/EMTDC. To enhance the understanding about the SSR phenomenon, some fundamental observations made in the study are also listed.
{"title":"Some aspects of power system stabilizer performance in subsynchronous resonance study","authors":"M. K. Shashidhara, K. Shubhanga","doi":"10.1109/ICPES.2011.6156655","DOIUrl":"https://doi.org/10.1109/ICPES.2011.6156655","url":null,"abstract":"In this paper, behavioural aspects of two types of power system stabilizers (PSS), i.e., a slip-signal PSS and a Delta-P-Omega PSS are studied in a fixed series capacitor compensated system employing the IEEE first benchmark system for SSR study. The well-known slip-signal-torsional interaction is studied to understand its dependency on the magnitude of network compensation. From such a study it is noted that the slip-signal-interaction is prominent only at higher degree of line compensation. It is also shown that Delta-P-Omega PSS is immune to such torsional interactions. Further, using the eigenvalue-based study, the swing-mode damping performance of slip-signal PSS and Delta-P-Omega PSS are studied when a system is series compensated. This study not only demonstrated the superiority of Delta-P-Omega PSS, but also validated the poor performance of slip-signal PSS. All these observations are verified by carrying out simulations on PSCAD/EMTDC. To enhance the understanding about the SSR phenomenon, some fundamental observations made in the study are also listed.","PeriodicalId":158903,"journal":{"name":"2011 International Conference on Power and Energy Systems","volume":"46 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":"126159539","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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