Pub Date : 2011-05-11DOI: 10.1109/POWERENG.2011.6036554
O. Ellabban, J. Van Mierlo, P. Lataire
This paper presents a comparative study of the most significant control methods (scalar control (V/F), indirect field oriented control (IFOC) and direct torque control (DTC)) for an induction motor fed by a Z-source inverter (ZSI) for automotive applications. The three control techniques are implemented using PWM voltage modulation. The comparison is based on various criteria including: the motor dynamic performance, the speed and torque ripples, the ac current harmonic content, the control algorithm implementation complexity, the ZSI performance and the overall system efficiency. The study is done by MATLAB simulation of a 15 kW induction motor fed by a high performance Z-source inverter. The simulation results indicates that, the IFOC seems to be the best control techniques suitable for controlling an induction motor fed by a ZSI for automotive applications. In addition, this paper proves that, all control methods used for the voltage source inverter (VSI) can be applied for the ZSI and gaining its advantages.
{"title":"A comparative study of different control techniques for an induction motor fed by a Z-source inverter for electric vehicles","authors":"O. Ellabban, J. Van Mierlo, P. Lataire","doi":"10.1109/POWERENG.2011.6036554","DOIUrl":"https://doi.org/10.1109/POWERENG.2011.6036554","url":null,"abstract":"This paper presents a comparative study of the most significant control methods (scalar control (V/F), indirect field oriented control (IFOC) and direct torque control (DTC)) for an induction motor fed by a Z-source inverter (ZSI) for automotive applications. The three control techniques are implemented using PWM voltage modulation. The comparison is based on various criteria including: the motor dynamic performance, the speed and torque ripples, the ac current harmonic content, the control algorithm implementation complexity, the ZSI performance and the overall system efficiency. The study is done by MATLAB simulation of a 15 kW induction motor fed by a high performance Z-source inverter. The simulation results indicates that, the IFOC seems to be the best control techniques suitable for controlling an induction motor fed by a ZSI for automotive applications. In addition, this paper proves that, all control methods used for the voltage source inverter (VSI) can be applied for the ZSI and gaining its advantages.","PeriodicalId":166144,"journal":{"name":"2011 International Conference on Power Engineering, Energy and Electrical Drives","volume":"9 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":"121479969","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.2011.6036478
M. H. Karimi, H. Zamani, K. Abbaszadeh, S. Hemmati
This paper presents a practical consideration to implement a sensor-less system drive on the Axial Flux Permanent Magnet (AFPM) motor with a high performance Digital Signal Processor (DSP) in real time. An on-line Extended Kalman Filter (EKF) is applied to estimate motor position and angular speed by measuring motor voltages and currents. In order to achieve desirable dynamic and robustness motor performance, Genetic Algorithm (GA) is used to tune coefficients of PI controller. This algorithm arranged these coefficients with considering importance of three factors in speed response: overshoot, steady state error and rise time. For investigation, entire system drive including EKF, Vector control, SV-PWM and AFPM motor are simulated in MATLAB/SIMULINK After that, the control system is executed on the TMS320F2812 controller platform.
{"title":"DSP-based optimal sensor-less vector control drive for axial-flux PM motor","authors":"M. H. Karimi, H. Zamani, K. Abbaszadeh, S. Hemmati","doi":"10.1109/POWERENG.2011.6036478","DOIUrl":"https://doi.org/10.1109/POWERENG.2011.6036478","url":null,"abstract":"This paper presents a practical consideration to implement a sensor-less system drive on the Axial Flux Permanent Magnet (AFPM) motor with a high performance Digital Signal Processor (DSP) in real time. An on-line Extended Kalman Filter (EKF) is applied to estimate motor position and angular speed by measuring motor voltages and currents. In order to achieve desirable dynamic and robustness motor performance, Genetic Algorithm (GA) is used to tune coefficients of PI controller. This algorithm arranged these coefficients with considering importance of three factors in speed response: overshoot, steady state error and rise time. For investigation, entire system drive including EKF, Vector control, SV-PWM and AFPM motor are simulated in MATLAB/SIMULINK After that, the control system is executed on the TMS320F2812 controller platform.","PeriodicalId":166144,"journal":{"name":"2011 International Conference on Power Engineering, Energy and Electrical Drives","volume":"24 4 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":"116632270","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.2011.6036530
O. Hegazy, J. Van Mierlo, P. Lataire
Plug-in hybrid electric vehicles (PHEVs) are specialized hybrid electric vehicles that have the potential to obtain enough energy for average daily commuting from batteries. These batteries would be charged from the power grid at home or at work and would thus allow for a reduction in the overall fuel consumption. This paper proposes an integrated power electronics interface for PHEVs, which consists of a novel Eight-Switch Inverter (ESI) and an interleaved DC/DC converter, in order to reduce the cost, the mass and the size of the power electronics unit (PEU) with high performance at any operating mode. In the proposed configuration, the Eight-Switch Inverter (ESI) is able to function as a bidirectional single-phase AC/DC battery charger/ vehicle to grid (V2G) and to transfer electrical energy between the DC-link and the electric traction system as DC/AC inverter. In addition, a bidirectional-interleaved DC/DC converter and its control are proposed for interfacing the ESI to a low-voltage battery pack in order to minimize the ripple of the battery current and to improve the efficiency of the DC system with lower inductor size. To validate the performance of the proposed configuration, the indirect field-oriented control (IFOC) based on particle swarm optimization (PSO) is proposed to optimize the efficiency of the AC drive system in PHEVs and compared with the IFOC. Moreover, an improved AC/DC controller based Proportional-Resonant Control (PRC) is proposed in order to reduce the THD of the input current in charger/V2G modes. The proposed configuration is analyzed and its performance is validated using simulated results obtained in MATLAB/ SIMULINK. Furthermore, the experimental setup of the integrated system is under progress.
{"title":"Design and control of bidirectional DC/AC and DC/DC converters for plug-in hybrid electric vehicles","authors":"O. Hegazy, J. Van Mierlo, P. Lataire","doi":"10.1109/POWERENG.2011.6036530","DOIUrl":"https://doi.org/10.1109/POWERENG.2011.6036530","url":null,"abstract":"Plug-in hybrid electric vehicles (PHEVs) are specialized hybrid electric vehicles that have the potential to obtain enough energy for average daily commuting from batteries. These batteries would be charged from the power grid at home or at work and would thus allow for a reduction in the overall fuel consumption. This paper proposes an integrated power electronics interface for PHEVs, which consists of a novel Eight-Switch Inverter (ESI) and an interleaved DC/DC converter, in order to reduce the cost, the mass and the size of the power electronics unit (PEU) with high performance at any operating mode. In the proposed configuration, the Eight-Switch Inverter (ESI) is able to function as a bidirectional single-phase AC/DC battery charger/ vehicle to grid (V2G) and to transfer electrical energy between the DC-link and the electric traction system as DC/AC inverter. In addition, a bidirectional-interleaved DC/DC converter and its control are proposed for interfacing the ESI to a low-voltage battery pack in order to minimize the ripple of the battery current and to improve the efficiency of the DC system with lower inductor size. To validate the performance of the proposed configuration, the indirect field-oriented control (IFOC) based on particle swarm optimization (PSO) is proposed to optimize the efficiency of the AC drive system in PHEVs and compared with the IFOC. Moreover, an improved AC/DC controller based Proportional-Resonant Control (PRC) is proposed in order to reduce the THD of the input current in charger/V2G modes. The proposed configuration is analyzed and its performance is validated using simulated results obtained in MATLAB/ SIMULINK. Furthermore, the experimental setup of the integrated system is under progress.","PeriodicalId":166144,"journal":{"name":"2011 International Conference on Power Engineering, Energy and Electrical Drives","volume":"40 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":"116928543","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.2011.6036542
A. Tessarolo, M. Mezzarobba, M. Degano
Fractional-slot concentrated-coil electric machines are often used especially in those applications where a number of rotor poles close to the number of stator slots is required. A major criticality of such machines is the occurrence of large air-gap field harmonics due to winding distribution and to slotting effects. Predicting such harmonics analytically with adequate accuracy is a good way to significantly speed-up subsequent investigations concerning the rotor effects of the field harmonics in terms of rotor losses. This paper proposes different analytical formulations for this purpose, covering the case of a generic number of stator phases and differing by how slotting effects are taken into account. The various approaches proposed are evaluated by comparing analytical results with FE analysis computations on a sample machine geometries.
{"title":"Analytical calculation of air-gap armature reaction field including slotting effects in fractional-slot concentrated-coil SPM multiphase machines","authors":"A. Tessarolo, M. Mezzarobba, M. Degano","doi":"10.1109/POWERENG.2011.6036542","DOIUrl":"https://doi.org/10.1109/POWERENG.2011.6036542","url":null,"abstract":"Fractional-slot concentrated-coil electric machines are often used especially in those applications where a number of rotor poles close to the number of stator slots is required. A major criticality of such machines is the occurrence of large air-gap field harmonics due to winding distribution and to slotting effects. Predicting such harmonics analytically with adequate accuracy is a good way to significantly speed-up subsequent investigations concerning the rotor effects of the field harmonics in terms of rotor losses. This paper proposes different analytical formulations for this purpose, covering the case of a generic number of stator phases and differing by how slotting effects are taken into account. The various approaches proposed are evaluated by comparing analytical results with FE analysis computations on a sample machine geometries.","PeriodicalId":166144,"journal":{"name":"2011 International Conference on Power Engineering, Energy and Electrical Drives","volume":"196 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":"115675310","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.2011.6036521
A. Barakat, S. Tnani, G. Champenois, E. Mouni
In this study the authors present the contribution of the thyristor excitation structure in combination with a multivariable H∞ controller. The thyristor bridge is supplied by a wound field synchronous machine (WFSM). A complete modeling of the excitation structure will be presented. The linearization of the feedback control is realized without approximation. The design of the multi input single output H∞ voltage controller will be also included. In addition, the implementation in real time domain will allow us to show the efficiency of the proposed structure as regards the reference tracking and perturbation rejection.
{"title":"Association of a multivariable H∞ voltage controller with a thyristor excitation structure supplied by a WFSM","authors":"A. Barakat, S. Tnani, G. Champenois, E. Mouni","doi":"10.1109/POWERENG.2011.6036521","DOIUrl":"https://doi.org/10.1109/POWERENG.2011.6036521","url":null,"abstract":"In this study the authors present the contribution of the thyristor excitation structure in combination with a multivariable H∞ controller. The thyristor bridge is supplied by a wound field synchronous machine (WFSM). A complete modeling of the excitation structure will be presented. The linearization of the feedback control is realized without approximation. The design of the multi input single output H∞ voltage controller will be also included. In addition, the implementation in real time domain will allow us to show the efficiency of the proposed structure as regards the reference tracking and perturbation rejection.","PeriodicalId":166144,"journal":{"name":"2011 International Conference on Power Engineering, Energy and Electrical Drives","volume":"28 9 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":"123161796","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.2011.6036447
Elisabeth C. L. Sperb, L. Negri, Anna K. S. Baasch, Horacio B. Polli, J. de Oliveira, A. Nied
In order to reduce the cost and improve the reliability of variable speed drives, sensorless techniques for estimation rotor speed from measurement of voltage and current have been the subject of intensive research. This paper proposes a sensorless control strategy for Permanent Magnet Synchronous Motor (PMSM) control using a novel neural network algorithm. The proposed observer uses a neural network trained to learn the electrical and mechanical motor models using the current prediction error. Experiments were performed, showing that the proposed network topology and training algorithm have advantages to the classical ones currently employed in sensorless control.
{"title":"Sensorless control of PMSM using a new efficient neural network speed estimator","authors":"Elisabeth C. L. Sperb, L. Negri, Anna K. S. Baasch, Horacio B. Polli, J. de Oliveira, A. Nied","doi":"10.1109/POWERENG.2011.6036447","DOIUrl":"https://doi.org/10.1109/POWERENG.2011.6036447","url":null,"abstract":"In order to reduce the cost and improve the reliability of variable speed drives, sensorless techniques for estimation rotor speed from measurement of voltage and current have been the subject of intensive research. This paper proposes a sensorless control strategy for Permanent Magnet Synchronous Motor (PMSM) control using a novel neural network algorithm. The proposed observer uses a neural network trained to learn the electrical and mechanical motor models using the current prediction error. Experiments were performed, showing that the proposed network topology and training algorithm have advantages to the classical ones currently employed in sensorless control.","PeriodicalId":166144,"journal":{"name":"2011 International Conference on Power Engineering, Energy and Electrical Drives","volume":"21 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":"129816433","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.2011.6036444
Pedro M. A. Vitoriano, T. Amaral, O. Dias
Automated Optical Inspection (AOI) Systems are commonly used on Printed Circuit Boards (PCB) manufacturing process. The use of this technology has been proved to be highly efficient on process improvements and quality achievements. The most difficult point on Surface Mounting Devices (SMD) inspection is the solder joint due to their specular reflections. Several studies have been made to improve this situation. In this paper, it is presented a solder joint classification system based on IPC-A-610D (Acceptability of Electronics Assemblies).
{"title":"Automatic Optical Inspection for Surface Mounting Devices with IPC-A-610D compliance","authors":"Pedro M. A. Vitoriano, T. Amaral, O. Dias","doi":"10.1109/POWERENG.2011.6036444","DOIUrl":"https://doi.org/10.1109/POWERENG.2011.6036444","url":null,"abstract":"Automated Optical Inspection (AOI) Systems are commonly used on Printed Circuit Boards (PCB) manufacturing process. The use of this technology has been proved to be highly efficient on process improvements and quality achievements. The most difficult point on Surface Mounting Devices (SMD) inspection is the solder joint due to their specular reflections. Several studies have been made to improve this situation. In this paper, it is presented a solder joint classification system based on IPC-A-610D (Acceptability of Electronics Assemblies).","PeriodicalId":166144,"journal":{"name":"2011 International Conference on Power Engineering, Energy and Electrical Drives","volume":"15 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":"125545527","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.2011.6036488
K. Balakrishnan, B. Umamaheswari, K. Latha
Estimation of rotor position and speed plays an important role to avoid skipped step and reduced resonance in Hybrid Stepper Motor (HSM). In this paper, the effect of various phase excitation schemes on estimation of rotor position and speed in the presence of resonance is studied. A method has been proposed to identify the resonance from the frequency content of measured phase currents well before it is exhibited in the mechanical measurement. It is compensated through excitation voltage. The microstepping excitation is found to provide fastest and smooth tracking of rotor position and speed. The results are validated through experimentation.
{"title":"Estimation of rotor position and speed for Hybrid Stepper Motor under various phase excitation schemes and compensated resonance","authors":"K. Balakrishnan, B. Umamaheswari, K. Latha","doi":"10.1109/POWERENG.2011.6036488","DOIUrl":"https://doi.org/10.1109/POWERENG.2011.6036488","url":null,"abstract":"Estimation of rotor position and speed plays an important role to avoid skipped step and reduced resonance in Hybrid Stepper Motor (HSM). In this paper, the effect of various phase excitation schemes on estimation of rotor position and speed in the presence of resonance is studied. A method has been proposed to identify the resonance from the frequency content of measured phase currents well before it is exhibited in the mechanical measurement. It is compensated through excitation voltage. The microstepping excitation is found to provide fastest and smooth tracking of rotor position and speed. The results are validated through experimentation.","PeriodicalId":166144,"journal":{"name":"2011 International Conference on Power Engineering, Energy and Electrical Drives","volume":"41 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":"124883814","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.2011.6036528
D. Sousa, A. Roque, C. Casimiro
The development of electric chains of plug-in vehicles can be carried out considering several and distinct aspects, resulting in many different solutions. One approach is to study the battery-power converter-electric machine chain for different types of batteries and electric machines, and therefore, adapt the power converter to the performance and dynamics required for those systems. In addition, these types of chains can allow bi-directional energy exchange not only among the storage systems on-board but also with ordinary electric grids. In this work, the plug-in vehicle has a modular topology where different solutions for the battery-power converter-electric machine chain of a plug-in electric vehicle are possible to be simulated. The system integrates ultracapacitors and batteries to store energy on-board. Among the sub-systems onboard, the batteries — AC grid connection has a significant contribution improving the modularity and efficiency of such systems. In this paper, aspects of the simulation model and results of a solution for this electric chain allowing bi-directional power flow and using different types of batteries (state of charge curves tested in the laboratory) is presented and analyzed.
{"title":"Analysis and simulation of a system connecting batteries of an electric vehicle to the electric grid","authors":"D. Sousa, A. Roque, C. Casimiro","doi":"10.1109/POWERENG.2011.6036528","DOIUrl":"https://doi.org/10.1109/POWERENG.2011.6036528","url":null,"abstract":"The development of electric chains of plug-in vehicles can be carried out considering several and distinct aspects, resulting in many different solutions. One approach is to study the battery-power converter-electric machine chain for different types of batteries and electric machines, and therefore, adapt the power converter to the performance and dynamics required for those systems. In addition, these types of chains can allow bi-directional energy exchange not only among the storage systems on-board but also with ordinary electric grids. In this work, the plug-in vehicle has a modular topology where different solutions for the battery-power converter-electric machine chain of a plug-in electric vehicle are possible to be simulated. The system integrates ultracapacitors and batteries to store energy on-board. Among the sub-systems onboard, the batteries — AC grid connection has a significant contribution improving the modularity and efficiency of such systems. In this paper, aspects of the simulation model and results of a solution for this electric chain allowing bi-directional power flow and using different types of batteries (state of charge curves tested in the laboratory) is presented and analyzed.","PeriodicalId":166144,"journal":{"name":"2011 International Conference on Power Engineering, Energy and Electrical Drives","volume":"304 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":"116335228","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.2011.6036451
N. Knak Neto, A. Abaide, Karine F. Magnago, L. Canha, Andre S. S. Amaral
The continuity of electrical energy supply is a constant concern for both the consumers of energy and power utilities. Thus, the power utilities have pursuing ways to delivery improvements to the system to ensure higher reliability without significant increases to operating costs. Given these statements and the regulatory aspects of the Brazilian Electric System, this paper presents a proposal to redefine the boundaries of performance DEC and FEC (equivalents to indexes SAIDI and SAIFI). To obtain results, Fuzzy Logic was applied to specific features of each evaluated system with the goal of matching the limits established by the Regulatory Agency in order to avoid excessive penalties for power utilities and to encourage the increased reliability of power supply.
{"title":"A proposal for redefinition of reliability indexes for power utilities by Fuzzy Logic","authors":"N. Knak Neto, A. Abaide, Karine F. Magnago, L. Canha, Andre S. S. Amaral","doi":"10.1109/POWERENG.2011.6036451","DOIUrl":"https://doi.org/10.1109/POWERENG.2011.6036451","url":null,"abstract":"The continuity of electrical energy supply is a constant concern for both the consumers of energy and power utilities. Thus, the power utilities have pursuing ways to delivery improvements to the system to ensure higher reliability without significant increases to operating costs. Given these statements and the regulatory aspects of the Brazilian Electric System, this paper presents a proposal to redefine the boundaries of performance DEC and FEC (equivalents to indexes SAIDI and SAIFI). To obtain results, Fuzzy Logic was applied to specific features of each evaluated system with the goal of matching the limits established by the Regulatory Agency in order to avoid excessive penalties for power utilities and to encourage the increased reliability of power supply.","PeriodicalId":166144,"journal":{"name":"2011 International Conference on Power Engineering, Energy and Electrical Drives","volume":"37 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":"116413665","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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