Pub Date : 2011-12-01DOI: 10.1109/ICPES.2011.6156661
S. A. S. Hesari, M. Hamzeh, Hadi Toobak
Because of high penetration of distributed resources in the distribution networks, the analysis of islanding detection methods in the multiple inverters situation has become of a great importance. Inverter resident active islanding detection methods inject disturbances into the supply system and detect islanding based on the responses of locally measured parameters. The islanding detection methods which is analyzed in this paper, injects interharmonic into the grid for impedance measurement. This method is very effective in systems with a single inverter but it is believed that their effectiveness might be reduced in multi-inverter systems due to mutual interferences. This paper discusses the effect of inverters on the islanding detection capabilities of inverters with impedance based islanding detection method and also interferences between the latter. The simulations are performed in PSCAD environment, which analyses the capability of impedance based islanding detection methods in a LV distribution network with multiple PV inverter.
{"title":"Performance assessment of an impedance based islanding detection method in a distribution network with multiple PV inverters","authors":"S. A. S. Hesari, M. Hamzeh, Hadi Toobak","doi":"10.1109/ICPES.2011.6156661","DOIUrl":"https://doi.org/10.1109/ICPES.2011.6156661","url":null,"abstract":"Because of high penetration of distributed resources in the distribution networks, the analysis of islanding detection methods in the multiple inverters situation has become of a great importance. Inverter resident active islanding detection methods inject disturbances into the supply system and detect islanding based on the responses of locally measured parameters. The islanding detection methods which is analyzed in this paper, injects interharmonic into the grid for impedance measurement. This method is very effective in systems with a single inverter but it is believed that their effectiveness might be reduced in multi-inverter systems due to mutual interferences. This paper discusses the effect of inverters on the islanding detection capabilities of inverters with impedance based islanding detection method and also interferences between the latter. The simulations are performed in PSCAD environment, which analyses the capability of impedance based islanding detection methods in a LV distribution network with multiple PV inverter.","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":"131233053","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.2011.6156681
K. Munji, R. Bhimasingu
Large-scale utilization of wind energy has caused an increasing concern about its influence on the power quality of the power system. Variable speed wind turbine generators (WTG) with advanced power electronic converters inject harmonic currents in the network, which may potentially cause current and voltage distortions. In this paper a case study is presented to ascertain the distribution of harmonic currents and voltages in a wind farm consisting of 72 wind turbine generators. This analysis is then applied to the study of resonant conditions and harmonic filter design.
{"title":"Mitigation of harmonics in grid integrated wind farms","authors":"K. Munji, R. Bhimasingu","doi":"10.1109/ICPES.2011.6156681","DOIUrl":"https://doi.org/10.1109/ICPES.2011.6156681","url":null,"abstract":"Large-scale utilization of wind energy has caused an increasing concern about its influence on the power quality of the power system. Variable speed wind turbine generators (WTG) with advanced power electronic converters inject harmonic currents in the network, which may potentially cause current and voltage distortions. In this paper a case study is presented to ascertain the distribution of harmonic currents and voltages in a wind farm consisting of 72 wind turbine generators. This analysis is then applied to the study of resonant conditions and harmonic filter design.","PeriodicalId":158903,"journal":{"name":"2011 International Conference on Power and Energy Systems","volume":"138 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":"132215592","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.2011.6156647
Surendra S. D Thukaram
Effective network overload alleviation is very much essential in order to maintain security and integrity from the operational viewpoint of deregulated power systems. This paper aims at developing a methodology to reschedule the active power generation from the sources in order to manage the network congestion under normal/contingency conditions. An effective method has been proposed using fuzzy rule based inference system. Using virtual flows concept, which provides partial contributions/counter flows in the network elements is used as a basis in the proposed method to manage network congestions to the possible extent. The proposed method is illustrated on a sample 6 bus test system and on modified IEEE 39 bus system.
{"title":"Network congestion management by fuzzy inference using virtual flows","authors":"Surendra S. D Thukaram","doi":"10.1109/ICPES.2011.6156647","DOIUrl":"https://doi.org/10.1109/ICPES.2011.6156647","url":null,"abstract":"Effective network overload alleviation is very much essential in order to maintain security and integrity from the operational viewpoint of deregulated power systems. This paper aims at developing a methodology to reschedule the active power generation from the sources in order to manage the network congestion under normal/contingency conditions. An effective method has been proposed using fuzzy rule based inference system. Using virtual flows concept, which provides partial contributions/counter flows in the network elements is used as a basis in the proposed method to manage network congestions to the possible extent. The proposed method is illustrated on a sample 6 bus test system and on modified IEEE 39 bus system.","PeriodicalId":158903,"journal":{"name":"2011 International Conference on Power and Energy Systems","volume":"22 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":"132413722","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.2011.6156652
R. S. Fernandes, Y. Bichpuriya, M. Rao, S. Soman
Accurate Short Term Load Forecasting (STLF) is critical for efficient functioning of electricity distribution company. High forecast error may result in non-optimal system operations and financial risk in short term power markets. Load profiles on holidays are very different from that on normal days. In India, holidays can be categorized as Sunday, Public holidays (e.g., Independence day, Republic day etc.) and Festival days (e.g., Diwali, Eid, Christmas etc.). Apart from these holidays, there are a few regional holidays e.g., Ganesh Chaturthi and Maharashtra day in the state of Maharashtra. Sunday is a repeated holiday having weekly frequency while other holidays come once in a year. Also, some of these holidays follows lunar calender and some follows Gregorian calender. Each holiday, excluding Sunday and Public holidays, has different characteristics in terms of activities, lighting load and the number of peoples celebrating the holiday. In such a scenario, predicting the accurate load profile for the holidays is a difficult task. This paper proposes two different models for Sunday and other holidays. Sunday model is used for forecasting load profile on Sundays and Holiday model is used for all other public holidays and festival days. The proposed models have been tested on load data of an urban distribution utilities and the results are illustrated.
{"title":"Day ahead load forecasting models for holidays in Indian context","authors":"R. S. Fernandes, Y. Bichpuriya, M. Rao, S. Soman","doi":"10.1109/ICPES.2011.6156652","DOIUrl":"https://doi.org/10.1109/ICPES.2011.6156652","url":null,"abstract":"Accurate Short Term Load Forecasting (STLF) is critical for efficient functioning of electricity distribution company. High forecast error may result in non-optimal system operations and financial risk in short term power markets. Load profiles on holidays are very different from that on normal days. In India, holidays can be categorized as Sunday, Public holidays (e.g., Independence day, Republic day etc.) and Festival days (e.g., Diwali, Eid, Christmas etc.). Apart from these holidays, there are a few regional holidays e.g., Ganesh Chaturthi and Maharashtra day in the state of Maharashtra. Sunday is a repeated holiday having weekly frequency while other holidays come once in a year. Also, some of these holidays follows lunar calender and some follows Gregorian calender. Each holiday, excluding Sunday and Public holidays, has different characteristics in terms of activities, lighting load and the number of peoples celebrating the holiday. In such a scenario, predicting the accurate load profile for the holidays is a difficult task. This paper proposes two different models for Sunday and other holidays. Sunday model is used for forecasting load profile on Sundays and Holiday model is used for all other public holidays and festival days. The proposed models have been tested on load data of an urban distribution utilities and the results are illustrated.","PeriodicalId":158903,"journal":{"name":"2011 International Conference on Power and Energy Systems","volume":"71 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":"129473141","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.2011.6156631
R. Dubey, S. Samantaray, B. Babu, S. N. Kumar
The electric power system maintains a dynamic and delicate balance between generation and load in normal operation condition. A disturbance, such as a sudden change of load, a power system fault, or a trip of a large generation unit, may break the balance, cause the oscillations among the generator rotor angles and force the generators to adjust to a new operating condition. The adjustment will not happen instantaneously due to the inertia of the generator prime movers. The oscillation will cause either stable and/or unstable power swings. During a power swing, the impedance trajectory seen by a distance relay may enter the fault detection zones and cause unwanted relay operation. Distinguishing stable and unstable power swing is one of the challenging tasks. This paper presents a wavelet based energy function for distinguishing stable and unstable power swing using Wavelet based Power Angle criteria.
{"title":"A novel out-of-step detection algorithm using angle of power signal","authors":"R. Dubey, S. Samantaray, B. Babu, S. N. Kumar","doi":"10.1109/ICPES.2011.6156631","DOIUrl":"https://doi.org/10.1109/ICPES.2011.6156631","url":null,"abstract":"The electric power system maintains a dynamic and delicate balance between generation and load in normal operation condition. A disturbance, such as a sudden change of load, a power system fault, or a trip of a large generation unit, may break the balance, cause the oscillations among the generator rotor angles and force the generators to adjust to a new operating condition. The adjustment will not happen instantaneously due to the inertia of the generator prime movers. The oscillation will cause either stable and/or unstable power swings. During a power swing, the impedance trajectory seen by a distance relay may enter the fault detection zones and cause unwanted relay operation. Distinguishing stable and unstable power swing is one of the challenging tasks. This paper presents a wavelet based energy function for distinguishing stable and unstable power swing using Wavelet based Power Angle criteria.","PeriodicalId":158903,"journal":{"name":"2011 International Conference on Power and Energy Systems","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":"123682241","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.2011.6156657
V. S. Kumar, D. Thukaram
This paper presents methodologies for incorporating phasor measurements into conventional state estimator. The angle measurements obtained from Phasor Measurement Units are handled as angle difference measurements rather than incorporating the angle measurements directly. Handling in such a manner overcomes the problems arising due to the choice of reference bus. Current measurements obtained from Phasor Measurement Units are treated as equivalent pseudo-voltage measurements at the neighboring buses. Two solution approaches namely normal equations approach and linear programming approach are presented to show how the Phasor Measurement Unit measurements can be handled. Comparative evaluation of both the approaches is also presented. Test results on IEEE 14 bus system are presented to validate both the approaches.
{"title":"Linear programming approach for state estimation incorporating phasor measurements","authors":"V. S. Kumar, D. Thukaram","doi":"10.1109/ICPES.2011.6156657","DOIUrl":"https://doi.org/10.1109/ICPES.2011.6156657","url":null,"abstract":"This paper presents methodologies for incorporating phasor measurements into conventional state estimator. The angle measurements obtained from Phasor Measurement Units are handled as angle difference measurements rather than incorporating the angle measurements directly. Handling in such a manner overcomes the problems arising due to the choice of reference bus. Current measurements obtained from Phasor Measurement Units are treated as equivalent pseudo-voltage measurements at the neighboring buses. Two solution approaches namely normal equations approach and linear programming approach are presented to show how the Phasor Measurement Unit measurements can be handled. Comparative evaluation of both the approaches is also presented. Test results on IEEE 14 bus system are presented to validate both the approaches.","PeriodicalId":158903,"journal":{"name":"2011 International Conference on Power and Energy Systems","volume":"197 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":"115003464","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.2011.6156617
S. Sharma, Bhim Singh
This paper deals with a synchronous generator (SG) based variable speed stand-alone wind energy conversion system (WECS). The voltage and frequency controller (VFC) consists of two back-back connected voltage source converter (VSC) and voltage source inverter (VSI) along with a battery energy storage system (BESS) at intermediate DC bus to allow the generation at variable voltage and variable frequency. The load-side VSI is controlled to feed regulated voltage and frequency supply to consumers. The performance of the VFC is obtained under steady-state and dynamic conditions. The simulation results demonstrate that the VFC performs satisfactorily as load leveler, load balancer, a neutral current compensator and as a maximum power point tracker.
{"title":"Variable speed stand-alone wind energy conversion system using synchronous generator","authors":"S. Sharma, Bhim Singh","doi":"10.1109/ICPES.2011.6156617","DOIUrl":"https://doi.org/10.1109/ICPES.2011.6156617","url":null,"abstract":"This paper deals with a synchronous generator (SG) based variable speed stand-alone wind energy conversion system (WECS). The voltage and frequency controller (VFC) consists of two back-back connected voltage source converter (VSC) and voltage source inverter (VSI) along with a battery energy storage system (BESS) at intermediate DC bus to allow the generation at variable voltage and variable frequency. The load-side VSI is controlled to feed regulated voltage and frequency supply to consumers. The performance of the VFC is obtained under steady-state and dynamic conditions. The simulation results demonstrate that the VFC performs satisfactorily as load leveler, load balancer, a neutral current compensator and as a maximum power point tracker.","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":"116118862","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.2011.6156618
Subodh Paudel, J. Shrestha, Fernando Buarque de Lima-Neto, Jorge A. F. Ferreira, Muna Adhikari
The rapid depletion of fossil fuel resources and environmental concerns has given awareness on generation of renewable energy resources. Among the various renewable resources, hybrid solar and wind energy seems to be promising solutions to provide reliable power supply with improved system efficiency and reduced storage requirements for stand-alone applications. This paper presents a feasibility assessment and optimum size of photovoltaic (PV) array, wind turbine and battery bank for a standalone hybrid Solar/Wind Power system (HSWPS) at remote telecom station of Nepal at Latitude (27°23′50″) and Longitude (86°44′23″) consisting a telecommunication load of Very Small Aperture Terminal (VSAT), Repeater station and Code Division Multiple Access Base Transceiver Station (CDMA 2C10 BTS). In any RES based system, the feasibility assessment is considered as the first step analysis. In this work, feasibility analysis is carried through hybrid optimization model for electric renewables (HOMER) and mathematical models were implemented in the MATLAB environment to perform the optimal configuration for a given load and a desired loss of power supply probability (LPSP) from a set of systems components with the lowest value of cost function defined in terms of reliability and levelized unit electricity cost (LUCE). The simulation results for the existing and the proposed models are compared. The simulation results shows that existing architecture consisting of 6.12 kW KC85T photovoltaic modules, 1kW H3.1 wind turbine and 1600 Ah GFM-800 battery bank have a 36.6% of unmet load during a year. On the other hand, the proposed system includes 1kW ∗2 H3.1 Wind turbine, 8.05 kW TSM-175DA01 photovoltaic modules and 1125 Ah T-105 battery bank with system reliability of 99.99% with a significant cost reduction as well as reliable energy production.
{"title":"Optimization of hybrid PV/wind power system for remote telecom station","authors":"Subodh Paudel, J. Shrestha, Fernando Buarque de Lima-Neto, Jorge A. F. Ferreira, Muna Adhikari","doi":"10.1109/ICPES.2011.6156618","DOIUrl":"https://doi.org/10.1109/ICPES.2011.6156618","url":null,"abstract":"The rapid depletion of fossil fuel resources and environmental concerns has given awareness on generation of renewable energy resources. Among the various renewable resources, hybrid solar and wind energy seems to be promising solutions to provide reliable power supply with improved system efficiency and reduced storage requirements for stand-alone applications. This paper presents a feasibility assessment and optimum size of photovoltaic (PV) array, wind turbine and battery bank for a standalone hybrid Solar/Wind Power system (HSWPS) at remote telecom station of Nepal at Latitude (27°23′50″) and Longitude (86°44′23″) consisting a telecommunication load of Very Small Aperture Terminal (VSAT), Repeater station and Code Division Multiple Access Base Transceiver Station (CDMA 2C10 BTS). In any RES based system, the feasibility assessment is considered as the first step analysis. In this work, feasibility analysis is carried through hybrid optimization model for electric renewables (HOMER) and mathematical models were implemented in the MATLAB environment to perform the optimal configuration for a given load and a desired loss of power supply probability (LPSP) from a set of systems components with the lowest value of cost function defined in terms of reliability and levelized unit electricity cost (LUCE). The simulation results for the existing and the proposed models are compared. The simulation results shows that existing architecture consisting of 6.12 kW KC85T photovoltaic modules, 1kW H3.1 wind turbine and 1600 Ah GFM-800 battery bank have a 36.6% of unmet load during a year. On the other hand, the proposed system includes 1kW ∗2 H3.1 Wind turbine, 8.05 kW TSM-175DA01 photovoltaic modules and 1125 Ah T-105 battery bank with system reliability of 99.99% with a significant cost reduction as well as reliable energy production.","PeriodicalId":158903,"journal":{"name":"2011 International Conference on Power and Energy Systems","volume":"12 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":"126830909","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.2011.6156674
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}
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