Pub Date : 2010-10-11DOI: 10.1109/CIEP.2010.5598850
Juan Segundo Ramírez, E. Bárcenas, A. Medina, V. Cárdenas
This contribution provides comprehensive development procedures and mathematical models of an adjustable speed drive (ASD) for steady-state solutions. A complete representation of the ASD is employed, which includes the detailed models of the diode rectifier and of the inverter. The power electronic switches are efficiently represented through a smooth function that allows a larger integration step to be used without loss of precision in the solution. An efficient technique in the time domain for the computation of the periodic steady-state solution of electric systems including ASDs based on a discrete exponential matrix (DEE) and the Poincaré map is used. Simulation results are compared with the data obtained in an experimental prototype.
{"title":"Fast steady state solution of adjustable speed drives for harmonic assessment","authors":"Juan Segundo Ramírez, E. Bárcenas, A. Medina, V. Cárdenas","doi":"10.1109/CIEP.2010.5598850","DOIUrl":"https://doi.org/10.1109/CIEP.2010.5598850","url":null,"abstract":"This contribution provides comprehensive development procedures and mathematical models of an adjustable speed drive (ASD) for steady-state solutions. A complete representation of the ASD is employed, which includes the detailed models of the diode rectifier and of the inverter. The power electronic switches are efficiently represented through a smooth function that allows a larger integration step to be used without loss of precision in the solution. An efficient technique in the time domain for the computation of the periodic steady-state solution of electric systems including ASDs based on a discrete exponential matrix (DEE) and the Poincaré map is used. Simulation results are compared with the data obtained in an experimental prototype.","PeriodicalId":147489,"journal":{"name":"12th IEEE International Power Electronics Congress","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117169144","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}
J. Rosas-Caro, Jesus Eugenio Flores-Hernandez, J. Mayo-Maldonado, J. M. González-López, A. Valderrábano‐González, H. Cisneros-Villegas
Static quadrature phase shifters controlled by pulse width modulation allow controlling the power flow in a transmission line by introducing a phase shift between sending and receiving voltage nodes. This work proposes a PWM quadrature phase shifter which uses only two driven switches which is advantage again current topologies that use six or four switches. As other AC-link converters, the PWM control is based on DC signals asynchronous from the grid, free of PLL and trigonometric calculations, this also makes frequency and phase perturbation don't affect the pulse width modulation as in the traditional PLL-synchronized SPWM, while the control can be accomplished with a low-cost micro controller, simulation and experimental result are shown to prove the principle of the proposition.
{"title":"Two switches based AC-link phase-shifter","authors":"J. Rosas-Caro, Jesus Eugenio Flores-Hernandez, J. Mayo-Maldonado, J. M. González-López, A. Valderrábano‐González, H. Cisneros-Villegas","doi":"10.1587/elex.9.1266","DOIUrl":"https://doi.org/10.1587/elex.9.1266","url":null,"abstract":"Static quadrature phase shifters controlled by pulse width modulation allow controlling the power flow in a transmission line by introducing a phase shift between sending and receiving voltage nodes. This work proposes a PWM quadrature phase shifter which uses only two driven switches which is advantage again current topologies that use six or four switches. As other AC-link converters, the PWM control is based on DC signals asynchronous from the grid, free of PLL and trigonometric calculations, this also makes frequency and phase perturbation don't affect the pulse width modulation as in the traditional PLL-synchronized SPWM, while the control can be accomplished with a low-cost micro controller, simulation and experimental result are shown to prove the principle of the proposition.","PeriodicalId":147489,"journal":{"name":"12th IEEE International Power Electronics Congress","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117032939","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 : 2010-10-11DOI: 10.1109/CIEP.2010.5598907
D. Gerardo, E. Palacios, V. Cárdenas
In this paper, a control expression for a single-phase inverter following the Interconnection and Damping Assignment Passivity Based Control (IDA-PBC) methodology is developed; this is achieved in a stationary framework using the single-phase d-q transformation. The proposed controller is designed exploiting the passivity properties of the averaged model of the circuit, while its evaluation is carried out in an experimental setting to examine its robustness properties with respect to load uncertainty and dynamic transient response. Both linear and nonlinear loads are considered in the experiments. The proposed controller is compared with another passive control expression obtained with the standard PBC approach under the same experimental operation.
{"title":"Interconnection and Damping Passivity-Based Control applied to a single-phase voltage source inverter","authors":"D. Gerardo, E. Palacios, V. Cárdenas","doi":"10.1109/CIEP.2010.5598907","DOIUrl":"https://doi.org/10.1109/CIEP.2010.5598907","url":null,"abstract":"In this paper, a control expression for a single-phase inverter following the Interconnection and Damping Assignment Passivity Based Control (IDA-PBC) methodology is developed; this is achieved in a stationary framework using the single-phase d-q transformation. The proposed controller is designed exploiting the passivity properties of the averaged model of the circuit, while its evaluation is carried out in an experimental setting to examine its robustness properties with respect to load uncertainty and dynamic transient response. Both linear and nonlinear loads are considered in the experiments. The proposed controller is compared with another passive control expression obtained with the standard PBC approach under the same experimental operation.","PeriodicalId":147489,"journal":{"name":"12th IEEE International Power Electronics Congress","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117083412","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 : 2010-10-11DOI: 10.1109/CIEP.2010.5598833
Mario A. Gonzalez, M. F. Escalante
This work presents the modeling of the dynamics of an electric vehicle (EV). Then, by using a typical driving cycle, the parameters for the motor drive system and other drive train components are determined. The proposed drive system is based on an induction motor being supplied by a 3-level NPC inverter. The speed control is based on a constant V/Hz strategy while the inverter is commanded by a Sinusoidal Pulse Width Modulation Strategy. The proposed drive system is validated by simulation. In one hand, the results show that the implemented V/Hz control strategy is capable of maintain the reference speed, as demanded by a driving pattern, and on the other hand, the strategy used to control de NPC multilevel inverter, is capable of assuring the demanded output voltage and the inverter internal variables are kept as needed.
{"title":"Traction system for an EV based on induction motor and 3-level NPC inverter multilevel converters","authors":"Mario A. Gonzalez, M. F. Escalante","doi":"10.1109/CIEP.2010.5598833","DOIUrl":"https://doi.org/10.1109/CIEP.2010.5598833","url":null,"abstract":"This work presents the modeling of the dynamics of an electric vehicle (EV). Then, by using a typical driving cycle, the parameters for the motor drive system and other drive train components are determined. The proposed drive system is based on an induction motor being supplied by a 3-level NPC inverter. The speed control is based on a constant V/Hz strategy while the inverter is commanded by a Sinusoidal Pulse Width Modulation Strategy. The proposed drive system is validated by simulation. In one hand, the results show that the implemented V/Hz control strategy is capable of maintain the reference speed, as demanded by a driving pattern, and on the other hand, the strategy used to control de NPC multilevel inverter, is capable of assuring the demanded output voltage and the inverter internal variables are kept as needed.","PeriodicalId":147489,"journal":{"name":"12th IEEE International Power Electronics Congress","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117296626","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 : 2010-10-11DOI: 10.1109/CIEP.2010.5598853
C. Hernández, C. Gallegos, N. Vázquez, E. Rodríguez, R. Orosco
An AC voltage regulator based on a tapped transformer is presented in this paper, but do not considers SCRs as switching devices, the system offers a fast response under input voltage variations. An AC voltage regulator can be made with a transformer tap changer or with an AC-AC converter based on buck or buck-boost topologies. The first one is simple but with slow response traditionally and the others are the opposite. In this paper is analyzed an AC voltage regulator based on a tapped transformer; however a fast response is obtained. Experimental results are presented.
{"title":"A different AC voltage regulator based on tapped transformer","authors":"C. Hernández, C. Gallegos, N. Vázquez, E. Rodríguez, R. Orosco","doi":"10.1109/CIEP.2010.5598853","DOIUrl":"https://doi.org/10.1109/CIEP.2010.5598853","url":null,"abstract":"An AC voltage regulator based on a tapped transformer is presented in this paper, but do not considers SCRs as switching devices, the system offers a fast response under input voltage variations. An AC voltage regulator can be made with a transformer tap changer or with an AC-AC converter based on buck or buck-boost topologies. The first one is simple but with slow response traditionally and the others are the opposite. In this paper is analyzed an AC voltage regulator based on a tapped transformer; however a fast response is obtained. Experimental results are presented.","PeriodicalId":147489,"journal":{"name":"12th IEEE International Power Electronics Congress","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126836733","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 : 2010-10-11DOI: 10.1109/CIEP.2010.5598901
J. Perez-Ramirez, V. Cárdenas, H. Miranda
One of the main problems when H-bridge multilevel converter is used for compensating reactive power is the DC link regulation; this is because of different losses into each cell. In this paper a DC link regulation strategy is obtained through a power analysis. It is shown how the strategy can be applied as much an asymmetric as a symmetric multilevel converters-based STATCOM. Some of simulation and experimental results based on a two cell binary converter are presented in order to show the strategy performance.
{"title":"Asymmetrical DC voltage regulation for a STATCOM based on H-bridge multi-cell converter","authors":"J. Perez-Ramirez, V. Cárdenas, H. Miranda","doi":"10.1109/CIEP.2010.5598901","DOIUrl":"https://doi.org/10.1109/CIEP.2010.5598901","url":null,"abstract":"One of the main problems when H-bridge multilevel converter is used for compensating reactive power is the DC link regulation; this is because of different losses into each cell. In this paper a DC link regulation strategy is obtained through a power analysis. It is shown how the strategy can be applied as much an asymmetric as a symmetric multilevel converters-based STATCOM. Some of simulation and experimental results based on a two cell binary converter are presented in order to show the strategy performance.","PeriodicalId":147489,"journal":{"name":"12th IEEE International Power Electronics Congress","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121302582","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 : 2010-10-11DOI: 10.1109/CIEP.2010.5598852
Nimrod Vazquez, M. A. Hernandez, H. López, C. Hernández, R. Osorio
DC/AC converters are widely used in several applications; recently the multilevel configuration for the DC/AC conversion is being studied. In this type of converters a traditional concern is the capacitor voltage unbalance problem. In this paper a method to maintain regulated the capacitor voltage of a neutral point clamped three-level inverter is presented. The operation, implementation and simulation results are shown.
{"title":"Capacitor balancing method for neutral point clamped three-level inverter","authors":"Nimrod Vazquez, M. A. Hernandez, H. López, C. Hernández, R. Osorio","doi":"10.1109/CIEP.2010.5598852","DOIUrl":"https://doi.org/10.1109/CIEP.2010.5598852","url":null,"abstract":"DC/AC converters are widely used in several applications; recently the multilevel configuration for the DC/AC conversion is being studied. In this type of converters a traditional concern is the capacitor voltage unbalance problem. In this paper a method to maintain regulated the capacitor voltage of a neutral point clamped three-level inverter is presented. The operation, implementation and simulation results are shown.","PeriodicalId":147489,"journal":{"name":"12th IEEE International Power Electronics Congress","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116495844","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 : 2010-10-11DOI: 10.1109/CIEP.2010.5598834
G. Calzada-Lara, F. Pazos-Flores, R. Álvarez-Salas
This document proposes an energetic output improvement of electric drives for induction motors. This modification pointing toward a better energetic output (improving the efficiency) according to the application, and can be made in the most common control algorithms as the FOC (Flux Oriented Control) and the DTC (Direct Torque Control). The increase in drive's efficiency supposes on the one hand, a considerable economic saving and, on the other hand, a reduction in the environment pollution.
{"title":"A new Direct Torque Control for a better efficiency of the induction motor","authors":"G. Calzada-Lara, F. Pazos-Flores, R. Álvarez-Salas","doi":"10.1109/CIEP.2010.5598834","DOIUrl":"https://doi.org/10.1109/CIEP.2010.5598834","url":null,"abstract":"This document proposes an energetic output improvement of electric drives for induction motors. This modification pointing toward a better energetic output (improving the efficiency) according to the application, and can be made in the most common control algorithms as the FOC (Flux Oriented Control) and the DTC (Direct Torque Control). The increase in drive's efficiency supposes on the one hand, a considerable economic saving and, on the other hand, a reduction in the environment pollution.","PeriodicalId":147489,"journal":{"name":"12th IEEE International Power Electronics Congress","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132890532","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 : 2010-10-11DOI: 10.1109/CIEP.2010.5598849
M. Ponce-Silva, J. L. Bautista, A. Tapia, Caren I. Nicolas, Teresa R. Granados, Ismael Araujo
The steady state analysis and design methodology of the Parallel-Resonant Inverter with Two Current Sources is presented in this paper. The analyzed circuit is the dual of the half bridge series resonant voltage source inverter and based in the principle of duality, a very simple design methodology for resonance condition is developed. An example design with the following specifications was simulated and implemented: Power 100 W, frequency 150 kHz, and feeding voltage 180 V. The results validate the design methodology and indicate that the best choice for the switches is the IGBT instead of an array of a MOSFET in series with a diode.
{"title":"Parallel-Resonant Inverter with Two Current Sources: Analysis and design methodology","authors":"M. Ponce-Silva, J. L. Bautista, A. Tapia, Caren I. Nicolas, Teresa R. Granados, Ismael Araujo","doi":"10.1109/CIEP.2010.5598849","DOIUrl":"https://doi.org/10.1109/CIEP.2010.5598849","url":null,"abstract":"The steady state analysis and design methodology of the Parallel-Resonant Inverter with Two Current Sources is presented in this paper. The analyzed circuit is the dual of the half bridge series resonant voltage source inverter and based in the principle of duality, a very simple design methodology for resonance condition is developed. An example design with the following specifications was simulated and implemented: Power 100 W, frequency 150 kHz, and feeding voltage 180 V. The results validate the design methodology and indicate that the best choice for the switches is the IGBT instead of an array of a MOSFET in series with a diode.","PeriodicalId":147489,"journal":{"name":"12th IEEE International Power Electronics Congress","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127086471","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 : 2010-10-11DOI: 10.1109/CIEP.2010.5598844
J. Cortés-Romero, A. Luviano‐Juárez, R. Álvarez-Salas, H. Sira-Ramírez
In this article, we propose an identification-based control scheme for a DC Brushless motor drive. The identification scheme is based on the algebraic identification method which allows for fast parameter identification whose, on line, computed values are used in canceling out the nonlinearities of the system dynamics thus reducing the control problem to that of a pure integration system. The control scheme consists of two stages: the first one is a outer loop current control which generates the required reference signal for the inner loop velocity control. A Generalized Proportional Integral control scheme is used in both loops, obtaining accurate, feasible, results as demonstrated by numerical simulations.
{"title":"Fast identification and control of an uncertain Brushless DC motor using algebraic methods","authors":"J. Cortés-Romero, A. Luviano‐Juárez, R. Álvarez-Salas, H. Sira-Ramírez","doi":"10.1109/CIEP.2010.5598844","DOIUrl":"https://doi.org/10.1109/CIEP.2010.5598844","url":null,"abstract":"In this article, we propose an identification-based control scheme for a DC Brushless motor drive. The identification scheme is based on the algebraic identification method which allows for fast parameter identification whose, on line, computed values are used in canceling out the nonlinearities of the system dynamics thus reducing the control problem to that of a pure integration system. The control scheme consists of two stages: the first one is a outer loop current control which generates the required reference signal for the inner loop velocity control. A Generalized Proportional Integral control scheme is used in both loops, obtaining accurate, feasible, results as demonstrated by numerical simulations.","PeriodicalId":147489,"journal":{"name":"12th IEEE International Power Electronics Congress","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114832290","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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