Pub Date : 2011-05-11DOI: 10.1109/POWERENG.2011.6036571
A. Gómez-Expósito, J. Maza-Ortega, E. Romero-Ramos, A. Marano
Distribution systems, and more specifically medium voltage (MV) networks, have not reached the automation level and technological sophistication of transmission systems. In fact, the introduction of the smart grid concept simply recognizes the urgent need and opportunity to improve the performance of distribution networks, in view of the new challenges they are facing nowadays. MV systems, being structurally meshed, are however radially operated. Until recently, the absence of any generation at this level has invariably led energy to flow from the substation to distribution transformers. This significantly simplifies both the operation of these systems and the design of the protection equipment. Owing to the need of assuring back-up supply, radial feeders are customarily oversized so that they can serve, at least partially, the load of neighboring feeders in case of fault. In this context, the growing presence of dispersed generation (DG) is, on the one hand, reducing the spare feeder capacity, leading in many cases to congestions, and, on the other, complicating the operation and protection schemes. The use of power electronic devices is seen as a promising way of enhancing both asset utilization and massive DG penetration, much in the same way HVDC systems were introduced decades ago at the transmission level. More specifically, in this work smart links between MV feeders and tap changers for distribution transformers, both based on electronic devices, are considered and assessed on actual distribution systems. These devices are sized and placed during a preliminary planning stage in order to maximize the dispersed generation that can be accommodated and/or the system loadability. Then, during the operational stage, the associated control variables are scheduled according to a new optimization problem intended to balance the load among bridged feeders or to minimize power losses. A simplified economic assessment is also included in order to prove that these smart devices can be a profitable investment, not only for utilities but also for the owners of DG.
{"title":"Smart links for distribution networks: The right way to further integrate renewables","authors":"A. Gómez-Expósito, J. Maza-Ortega, E. Romero-Ramos, A. Marano","doi":"10.1109/POWERENG.2011.6036571","DOIUrl":"https://doi.org/10.1109/POWERENG.2011.6036571","url":null,"abstract":"Distribution systems, and more specifically medium voltage (MV) networks, have not reached the automation level and technological sophistication of transmission systems. In fact, the introduction of the smart grid concept simply recognizes the urgent need and opportunity to improve the performance of distribution networks, in view of the new challenges they are facing nowadays. MV systems, being structurally meshed, are however radially operated. Until recently, the absence of any generation at this level has invariably led energy to flow from the substation to distribution transformers. This significantly simplifies both the operation of these systems and the design of the protection equipment. Owing to the need of assuring back-up supply, radial feeders are customarily oversized so that they can serve, at least partially, the load of neighboring feeders in case of fault. In this context, the growing presence of dispersed generation (DG) is, on the one hand, reducing the spare feeder capacity, leading in many cases to congestions, and, on the other, complicating the operation and protection schemes. The use of power electronic devices is seen as a promising way of enhancing both asset utilization and massive DG penetration, much in the same way HVDC systems were introduced decades ago at the transmission level. More specifically, in this work smart links between MV feeders and tap changers for distribution transformers, both based on electronic devices, are considered and assessed on actual distribution systems. These devices are sized and placed during a preliminary planning stage in order to maximize the dispersed generation that can be accommodated and/or the system loadability. Then, during the operational stage, the associated control variables are scheduled according to a new optimization problem intended to balance the load among bridged feeders or to minimize power losses. A simplified economic assessment is also included in order to prove that these smart devices can be a profitable investment, not only for utilities but also for the owners of DG.","PeriodicalId":166144,"journal":{"name":"2011 International Conference on Power Engineering, Energy and Electrical Drives","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132244603","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 : 2011-05-11DOI: 10.1109/POWERENG.2011.6036494
Ting Liu, Shoudao Huang, Jian Gao
In this paper, an optimal design method of a high power permanent magnet synchronous generator (PMSG) turbine by wind is proposed. The expression of the cogging torque was studied based on the Fourier analysis. A method of permanent magnet shifting to reduce cogging torque was presented. In this paper a prototype for 5MW generator was built and a comparative study of the performance both of no load and rated load was made based on finite element analysis (FEA) for the machine with the normal magnets and the machine with the shifted magnets. It was proved that the cogging torque and the harmonics of the back electro motive force (EMF) can be greatly reduced by the proposed method. With this PM shifting method, it is helpful to obtain the better performance of the direct-drive PMSG.
{"title":"Optimal design of the direct-driven high power permanent magnet generator turbine by wind","authors":"Ting Liu, Shoudao Huang, Jian Gao","doi":"10.1109/POWERENG.2011.6036494","DOIUrl":"https://doi.org/10.1109/POWERENG.2011.6036494","url":null,"abstract":"In this paper, an optimal design method of a high power permanent magnet synchronous generator (PMSG) turbine by wind is proposed. The expression of the cogging torque was studied based on the Fourier analysis. A method of permanent magnet shifting to reduce cogging torque was presented. In this paper a prototype for 5MW generator was built and a comparative study of the performance both of no load and rated load was made based on finite element analysis (FEA) for the machine with the normal magnets and the machine with the shifted magnets. It was proved that the cogging torque and the harmonics of the back electro motive force (EMF) can be greatly reduced by the proposed method. With this PM shifting method, it is helpful to obtain the better performance of the direct-drive PMSG.","PeriodicalId":166144,"journal":{"name":"2011 International Conference on Power Engineering, Energy and Electrical Drives","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134407174","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 : 2011-05-11DOI: 10.1109/POWERENG.2011.6036425
D. Silva, S. Vieira, C. Lima, J. Martins
Housing in the EU contributes approximately with 25% regarding all C02 emissions; therefore, it is imperative that we find robust methodologies to reduce it. This paper intents to be a contribution to valuable savings in root energy consumption without unduly compromising comfort and convenience. The developed prototype is a Plug and Play Instrumentation Kit, as part of a HOMe energy advisER system (HOMER). This system acts as a packaged Energy Assessment Instrumentation "kit" to be made available to homeowners, landlords and tenants in order to help them reducing their energy bill through real accounts of energy usage and links with lifestyle patterns. This is essential for countries to meet the national, European and world targets for energy reduction (and renewable sources). The all system is wireless based so that it can be easily installed and uninstalled in every home.
{"title":"Home energy saving adviser system","authors":"D. Silva, S. Vieira, C. Lima, J. Martins","doi":"10.1109/POWERENG.2011.6036425","DOIUrl":"https://doi.org/10.1109/POWERENG.2011.6036425","url":null,"abstract":"Housing in the EU contributes approximately with 25% regarding all C02 emissions; therefore, it is imperative that we find robust methodologies to reduce it. This paper intents to be a contribution to valuable savings in root energy consumption without unduly compromising comfort and convenience. The developed prototype is a Plug and Play Instrumentation Kit, as part of a HOMe energy advisER system (HOMER). This system acts as a packaged Energy Assessment Instrumentation \"kit\" to be made available to homeowners, landlords and tenants in order to help them reducing their energy bill through real accounts of energy usage and links with lifestyle patterns. This is essential for countries to meet the national, European and world targets for energy reduction (and renewable sources). The all system is wireless based so that it can be easily installed and uninstalled in every home.","PeriodicalId":166144,"journal":{"name":"2011 International Conference on Power Engineering, Energy and Electrical Drives","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133622759","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 : 2011-05-11DOI: 10.1109/POWERENG.2011.6036515
I. Colak, R. Bayindir, E. Irmak, O. Kaplan
In recent years, interest to active power filters has been increased. This paper presents a comparative evaluation for two types of harmonic extraction methods used widely for single phase shunt active power filters which are the p-q theory and the sine multiplying method. These control theories are investigated in detail considering their mathematical models. The performance of each theory is examined on the simulation circuit built in MATLAB/Simulink toolbox. Results show that the sine multiplying method is better than the single phase p-q theory in terms of THD.
{"title":"A comparative study of harmonic extraction methods for single phase shunt active power filter","authors":"I. Colak, R. Bayindir, E. Irmak, O. Kaplan","doi":"10.1109/POWERENG.2011.6036515","DOIUrl":"https://doi.org/10.1109/POWERENG.2011.6036515","url":null,"abstract":"In recent years, interest to active power filters has been increased. This paper presents a comparative evaluation for two types of harmonic extraction methods used widely for single phase shunt active power filters which are the p-q theory and the sine multiplying method. These control theories are investigated in detail considering their mathematical models. The performance of each theory is examined on the simulation circuit built in MATLAB/Simulink toolbox. Results show that the sine multiplying method is better than the single phase p-q theory in terms of THD.","PeriodicalId":166144,"journal":{"name":"2011 International Conference on Power Engineering, Energy and Electrical Drives","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114836519","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 : 2011-05-11DOI: 10.1109/POWERENG.2011.6036443
Constantinos Soukounis, P. Dost
As electrical energy depicts itself as a future-orientated strategy for drives used in passenger cars, it is necessary to consider the conditioning of electrical energy to be used for electrical machines. The high frequent influence to the whole power train is evaluated with a view to the electrical and mechanical components. This influence is determined in reference to a comparison between a symmetric pulse wide modulation and a stator orientated hysteretic control (bang-bang-control). As electrical drives for electric vehicles need to have a wide speed range and likewise be robust the chosen control processes are checked out by using a permanent magnetic synchronous machine (PMSM) [1, 2, 3, 4]. This also offers the opportunity of a gearless drive which by the way offers a big advantage in comparison to combustion engines. For best comparison settings the energy source is realized by an ideal voltage source. To connect these components there is an inverter which builds up three-phases and likewise a rectifier in the opposed direction with a set of IGBTs and integrated antiparallel diodes. The command signal is set by the same conditions as in an traditional car by the torque demand of the acceleration pedal.
{"title":"Influence to the electrical and mechanical sub system due to inverter control processes on a power train of electric vehicles","authors":"Constantinos Soukounis, P. Dost","doi":"10.1109/POWERENG.2011.6036443","DOIUrl":"https://doi.org/10.1109/POWERENG.2011.6036443","url":null,"abstract":"As electrical energy depicts itself as a future-orientated strategy for drives used in passenger cars, it is necessary to consider the conditioning of electrical energy to be used for electrical machines. The high frequent influence to the whole power train is evaluated with a view to the electrical and mechanical components. This influence is determined in reference to a comparison between a symmetric pulse wide modulation and a stator orientated hysteretic control (bang-bang-control). As electrical drives for electric vehicles need to have a wide speed range and likewise be robust the chosen control processes are checked out by using a permanent magnetic synchronous machine (PMSM) [1, 2, 3, 4]. This also offers the opportunity of a gearless drive which by the way offers a big advantage in comparison to combustion engines. For best comparison settings the energy source is realized by an ideal voltage source. To connect these components there is an inverter which builds up three-phases and likewise a rectifier in the opposed direction with a set of IGBTs and integrated antiparallel diodes. The command signal is set by the same conditions as in an traditional car by the torque demand of the acceleration pedal.","PeriodicalId":166144,"journal":{"name":"2011 International Conference on Power Engineering, Energy and Electrical Drives","volume":"604 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116372914","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 : 2011-05-11DOI: 10.1109/POWERENG.2011.6036511
Xiangjun Li, A. Dwivedi, Xinghuo Yu
Cascading failure in power networks is studied considering power flow limit on each line. The concept of correlation of lines in power grids is proposed. It explains the interaction between lines during cascading failure. An algorithm which calculates the correlated lines in a cascading failure is developed based on the DC power flow model. Computation is carried out on an IEEE 14-bus system. The results verify the significance of the concept and the algorithm.
{"title":"Assessing cascading failure in power networks based on power line correlations","authors":"Xiangjun Li, A. Dwivedi, Xinghuo Yu","doi":"10.1109/POWERENG.2011.6036511","DOIUrl":"https://doi.org/10.1109/POWERENG.2011.6036511","url":null,"abstract":"Cascading failure in power networks is studied considering power flow limit on each line. The concept of correlation of lines in power grids is proposed. It explains the interaction between lines during cascading failure. An algorithm which calculates the correlated lines in a cascading failure is developed based on the DC power flow model. Computation is carried out on an IEEE 14-bus system. The results verify the significance of the concept and the algorithm.","PeriodicalId":166144,"journal":{"name":"2011 International Conference on Power Engineering, Energy and Electrical Drives","volume":"122 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116500248","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 : 2011-05-11DOI: 10.1109/POWERENG.2011.6036567
O. Barambones, J. M. G. de Durana
The actual wind turbines are provided with adjustable speed generators, like the double feed induction generator, that are capable to work in variable speed operations. One of the main advantage of adjustable speed generators is that they improve the system efficiency compared to fixed speed generators because turbine speed is adjusted as a function of wind speed to maximize output power. However this systems requires a suitable speed controller in order to track the optimal wind turbine reference speed. In this work, an adaptive robust control for variable speed wind power generator is described. The proposed robust control law is based on a sliding mode control theory, that presents a good performance under system uncertainties. The proposed sliding-mode control law incorporates an adaptive switching gain, which avoids having to calculate an upper limit of the system uncertainties that is necessary in the traditional sliding-mode control laws. The stability analysis of the proposed controller under disturbances and parameter uncertainties is provided using the Lyapunov stability theory. Finally simulated results show, on the one hand that the proposed controller provides high-performance dynamic characteristics, and on the other hand that this scheme is robust with respect to plant parameter variations and external disturbances.
{"title":"An adaptive sliding mode control law for the power maximization of the wind turbine system","authors":"O. Barambones, J. M. G. de Durana","doi":"10.1109/POWERENG.2011.6036567","DOIUrl":"https://doi.org/10.1109/POWERENG.2011.6036567","url":null,"abstract":"The actual wind turbines are provided with adjustable speed generators, like the double feed induction generator, that are capable to work in variable speed operations. One of the main advantage of adjustable speed generators is that they improve the system efficiency compared to fixed speed generators because turbine speed is adjusted as a function of wind speed to maximize output power. However this systems requires a suitable speed controller in order to track the optimal wind turbine reference speed. In this work, an adaptive robust control for variable speed wind power generator is described. The proposed robust control law is based on a sliding mode control theory, that presents a good performance under system uncertainties. The proposed sliding-mode control law incorporates an adaptive switching gain, which avoids having to calculate an upper limit of the system uncertainties that is necessary in the traditional sliding-mode control laws. The stability analysis of the proposed controller under disturbances and parameter uncertainties is provided using the Lyapunov stability theory. Finally simulated results show, on the one hand that the proposed controller provides high-performance dynamic characteristics, and on the other hand that this scheme is robust with respect to plant parameter variations and external disturbances.","PeriodicalId":166144,"journal":{"name":"2011 International Conference on Power Engineering, Energy and Electrical Drives","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125441651","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 : 2011-05-11DOI: 10.1109/POWERENG.2011.6036565
S. Javadian, M. Haghifam, M. Massaeli
Using Distributed Generation (DG) is an interesting topic that has drawn attention of electrical engineers in recent years. The presence of these generation units in distribution systems, although has many advantages and benefits, has to be applied after performing detailed studies and investigations due to their complexities in operation, control and protection of network. One of the major effects of DGs is their effect on protection operation of distribution networks. In this paper after reviewing this influence, risk analysis of protection system's operation in a test distribution network according to various locations and capacities of DGs has been performed. For this purpose, three indexes for presenting the system's risk has been introduced and calculated in different investigated cases.
{"title":"Risk analysis of protection system's operation in distribution networks with DG","authors":"S. Javadian, M. Haghifam, M. Massaeli","doi":"10.1109/POWERENG.2011.6036565","DOIUrl":"https://doi.org/10.1109/POWERENG.2011.6036565","url":null,"abstract":"Using Distributed Generation (DG) is an interesting topic that has drawn attention of electrical engineers in recent years. The presence of these generation units in distribution systems, although has many advantages and benefits, has to be applied after performing detailed studies and investigations due to their complexities in operation, control and protection of network. One of the major effects of DGs is their effect on protection operation of distribution networks. In this paper after reviewing this influence, risk analysis of protection system's operation in a test distribution network according to various locations and capacities of DGs has been performed. For this purpose, three indexes for presenting the system's risk has been introduced and calculated in different investigated cases.","PeriodicalId":166144,"journal":{"name":"2011 International Conference on Power Engineering, Energy and Electrical Drives","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125251204","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 : 2011-05-11DOI: 10.1109/POWERENG.2011.6036562
Mohammed Abbas, M. Majeed, M. Kassas, F. Ahmad
Dynamic and static starting motor starting studies were conducted for the largest motor (13.2 kV, 3200kW) in a Saudi-based urea manufacturing plant for peak load and worst case scenarios. The results of these motor simulation studies indicate no motor starting problems in the peak load scenario. Motor starting in the worst case plant operating conditions however was found to cause significant voltage dips that can affect plant operation. Based on the motor starting simulation results, the necessary remedial measures are suggested for ensuring trouble-free plant operation in worst case conditions.
{"title":"Motor starting study for a urea manufacturing plant","authors":"Mohammed Abbas, M. Majeed, M. Kassas, F. Ahmad","doi":"10.1109/POWERENG.2011.6036562","DOIUrl":"https://doi.org/10.1109/POWERENG.2011.6036562","url":null,"abstract":"Dynamic and static starting motor starting studies were conducted for the largest motor (13.2 kV, 3200kW) in a Saudi-based urea manufacturing plant for peak load and worst case scenarios. The results of these motor simulation studies indicate no motor starting problems in the peak load scenario. Motor starting in the worst case plant operating conditions however was found to cause significant voltage dips that can affect plant operation. Based on the motor starting simulation results, the necessary remedial measures are suggested for ensuring trouble-free plant operation in worst case conditions.","PeriodicalId":166144,"journal":{"name":"2011 International Conference on Power Engineering, Energy and Electrical Drives","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128164055","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 : 2011-05-11DOI: 10.1109/POWERENG.2011.6036548
F. Ruiz-Rodriguez, M. Gómez-González, F. Jurado
The voltage regulation is one of the main problems to be dealt in distributed generation photovoltaic systems. Loads and distributed generation production can be assumed as random variables. Results demonstrate that the suggested method can be applied for the maintaining of voltages within established limits at all load nodes of a photovoltaic grid-connected system (PVGCS). To assess the performance of photovoltaic system, this work proposes a probabilistic model that takes into account the random nature of solar irradiance and load. In this paper is presented a new method employing discrete particle swarm optimization and probabilistic radial load flow. Computer simulation reduction evidences a better performance of the new probabilistic load flow in comparison to Monte Carlo simulation. Satisfactory solutions are reached in a smaller number of iterations. Hence, convergence is quickly reached and computational cost is low enough than that demanded for Monte Carlo simulation.
{"title":"Improving voltage profile in radial distribution systems using binary particle swarm optimization and probabilistic load flow","authors":"F. Ruiz-Rodriguez, M. Gómez-González, F. Jurado","doi":"10.1109/POWERENG.2011.6036548","DOIUrl":"https://doi.org/10.1109/POWERENG.2011.6036548","url":null,"abstract":"The voltage regulation is one of the main problems to be dealt in distributed generation photovoltaic systems. Loads and distributed generation production can be assumed as random variables. Results demonstrate that the suggested method can be applied for the maintaining of voltages within established limits at all load nodes of a photovoltaic grid-connected system (PVGCS). To assess the performance of photovoltaic system, this work proposes a probabilistic model that takes into account the random nature of solar irradiance and load. In this paper is presented a new method employing discrete particle swarm optimization and probabilistic radial load flow. Computer simulation reduction evidences a better performance of the new probabilistic load flow in comparison to Monte Carlo simulation. Satisfactory solutions are reached in a smaller number of iterations. Hence, convergence is quickly reached and computational cost is low enough than that demanded for Monte Carlo simulation.","PeriodicalId":166144,"journal":{"name":"2011 International Conference on Power Engineering, Energy and Electrical Drives","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129039057","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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