Pub Date : 2014-06-18DOI: 10.1109/SPEEDAM.2014.6871905
T. Roubache, S. Chaouch, M. N. Nait Said
This paper deals with fault tolerant control (FTC) for a high performance induction motor (IM) based on backstepping strategy implicitly tolerant to defects assuming the effect of the fault on the system (IM) can be modeled by an exogenous signal from a stable autonomous system. An additive term is added to the nominal offset and serves to control the effect of the defect (FTC aspect). This additive term is derived from the internal model whose role is to reproduce the signal representing the effect of the defect (FDI aspect). The proposed fault-tolerant controller for IM may be realized in presence of both rotor and stator electrical faults. Simulation tests confirm widely the feasibility and the effectiveness of the proposal FTC of IM based on the backstepping control.
{"title":"Backstepping fault tolerant control for induction motor","authors":"T. Roubache, S. Chaouch, M. N. Nait Said","doi":"10.1109/SPEEDAM.2014.6871905","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2014.6871905","url":null,"abstract":"This paper deals with fault tolerant control (FTC) for a high performance induction motor (IM) based on backstepping strategy implicitly tolerant to defects assuming the effect of the fault on the system (IM) can be modeled by an exogenous signal from a stable autonomous system. An additive term is added to the nominal offset and serves to control the effect of the defect (FTC aspect). This additive term is derived from the internal model whose role is to reproduce the signal representing the effect of the defect (FDI aspect). The proposed fault-tolerant controller for IM may be realized in presence of both rotor and stator electrical faults. Simulation tests confirm widely the feasibility and the effectiveness of the proposal FTC of IM based on the backstepping control.","PeriodicalId":344918,"journal":{"name":"2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128411790","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 : 2014-06-18DOI: 10.1109/SPEEDAM.2014.6872076
V. Boscaino, G. Cipriani, V. Di Dio, R. Lauricella, A. Marcotulli, R. Miceli
Distributed power generation units are experiencing an impressive growth. Consequently, the amount of energy injected by non-linear loads as power converters is expected to increase. Stability and quality of the overall grid are heavily affected by performances of grid-side converters. In this paper, an overview of grid-synchronization technique is proposed. The grid-side inverter is implemented in MATLAB/Simulink® environment including current control and grid-synchronization section. Both Synchronous Reference Frame (SRF) and Decoupled Double Synchronous Reference Frame (DDSRF) PLL algorithms are implemented. A performance comparison is carried out under ideal and unbalanced utility conditions. A modify of DDSRF architecture is proposed to enhance performances of DDSRF under distorted conditions. Simulation results are shown and discussed.
{"title":"Overview and performance comparison of grid synchronization algorithms","authors":"V. Boscaino, G. Cipriani, V. Di Dio, R. Lauricella, A. Marcotulli, R. Miceli","doi":"10.1109/SPEEDAM.2014.6872076","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2014.6872076","url":null,"abstract":"Distributed power generation units are experiencing an impressive growth. Consequently, the amount of energy injected by non-linear loads as power converters is expected to increase. Stability and quality of the overall grid are heavily affected by performances of grid-side converters. In this paper, an overview of grid-synchronization technique is proposed. The grid-side inverter is implemented in MATLAB/Simulink® environment including current control and grid-synchronization section. Both Synchronous Reference Frame (SRF) and Decoupled Double Synchronous Reference Frame (DDSRF) PLL algorithms are implemented. A performance comparison is carried out under ideal and unbalanced utility conditions. A modify of DDSRF architecture is proposed to enhance performances of DDSRF under distorted conditions. Simulation results are shown and discussed.","PeriodicalId":344918,"journal":{"name":"2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130527847","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 : 2014-06-18DOI: 10.1109/SPEEDAM.2014.6872117
Liao Qingfen, Wang Yifei, Tang Fei, Yang Jian, Liu Yu
Reasonable islanding strategy is significant for avoiding blackout when the power system suffers from major fault. On the basis of this, this paper analyzes the electrical connection between nodes and proposes a new method of islanding strategy searching based on Floyd-warshall and DFS algorithm. By comparing the degree of electrical coupling relationship between load nodes and generator groups, the problem of islanding strategy searching can be mapped to the partition of the shared nodes. Afterwards, the shared nodes can be divided into proper island by further search which takes the minimum unbalanced power in each island after islanding as the objective function. After the above steps, the optimal islanding strategy can be obtained. The proposed method owns the advantage of low computation complexity and high fitness of operational modes. The effectiveness and rapidity are demonstrated through case studies on IEEE-39 test system and IEEE-118 test system.
{"title":"An islanding surface searching approach based on Floyd-warshall and DFS algorithm","authors":"Liao Qingfen, Wang Yifei, Tang Fei, Yang Jian, Liu Yu","doi":"10.1109/SPEEDAM.2014.6872117","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2014.6872117","url":null,"abstract":"Reasonable islanding strategy is significant for avoiding blackout when the power system suffers from major fault. On the basis of this, this paper analyzes the electrical connection between nodes and proposes a new method of islanding strategy searching based on Floyd-warshall and DFS algorithm. By comparing the degree of electrical coupling relationship between load nodes and generator groups, the problem of islanding strategy searching can be mapped to the partition of the shared nodes. Afterwards, the shared nodes can be divided into proper island by further search which takes the minimum unbalanced power in each island after islanding as the objective function. After the above steps, the optimal islanding strategy can be obtained. The proposed method owns the advantage of low computation complexity and high fitness of operational modes. The effectiveness and rapidity are demonstrated through case studies on IEEE-39 test system and IEEE-118 test system.","PeriodicalId":344918,"journal":{"name":"2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129836410","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 : 2014-06-18DOI: 10.1109/SPEEDAM.2014.6871907
A. Lebsir, R. Rebbah, M. Larakeb, H. Djeghloud, A. Bentounsi
This paper presents the finite element modelling of a three-phase synchronous machine (3 kW-1500 rpm). In addition to analyzing the electromagnetic behaviour of the machine, various tests (no-load, short-circuit and load tests) was performed virtually using Maxwell software and validated experimentally. This work aims to parametric identification of machines and creation of a virtual laboratory of machine tests at Dept. of Electrical Engineering at the University of Constantine 1, Algeria.
{"title":"Modeling and analysis of a salient poles synchronous machines using finite-elements method","authors":"A. Lebsir, R. Rebbah, M. Larakeb, H. Djeghloud, A. Bentounsi","doi":"10.1109/SPEEDAM.2014.6871907","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2014.6871907","url":null,"abstract":"This paper presents the finite element modelling of a three-phase synchronous machine (3 kW-1500 rpm). In addition to analyzing the electromagnetic behaviour of the machine, various tests (no-load, short-circuit and load tests) was performed virtually using Maxwell software and validated experimentally. This work aims to parametric identification of machines and creation of a virtual laboratory of machine tests at Dept. of Electrical Engineering at the University of Constantine 1, Algeria.","PeriodicalId":344918,"journal":{"name":"2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128116729","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 : 2014-06-18DOI: 10.1109/SPEEDAM.2014.6871967
Daniel Strassberger, Paolo Mercorelli, A. Georgiadis
This paper proposes a controller for motion control of the Robotino. The proposed controller takes under consideration a noninteracting control strategy realized using a geometric approach and the flatness of the DC-Drives. Horizon, Vertical and Angular motions are considered and once the decoupling between these motions is obtained, a Model Predictive Control (MPC) strategy is used in combination with a preselecting matrix. Simulation results using real data of Robotino are shown.
{"title":"Using the flatness of DC-Drives to emulate a generator for a decoupled MPC using a geometric approach for motion control in Robotino","authors":"Daniel Strassberger, Paolo Mercorelli, A. Georgiadis","doi":"10.1109/SPEEDAM.2014.6871967","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2014.6871967","url":null,"abstract":"This paper proposes a controller for motion control of the Robotino. The proposed controller takes under consideration a noninteracting control strategy realized using a geometric approach and the flatness of the DC-Drives. Horizon, Vertical and Angular motions are considered and once the decoupling between these motions is obtained, a Model Predictive Control (MPC) strategy is used in combination with a preselecting matrix. Simulation results using real data of Robotino are shown.","PeriodicalId":344918,"journal":{"name":"2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126925523","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 : 2014-06-18DOI: 10.1109/SPEEDAM.2014.6872074
M. Fioretto, L. Rubino, N. Serbia, P. Marino, G. Rubino
In this paper a strategy for the compensation of harmonic currents in DC bus has been proposed. By means of a multilevel converter, low amplitude harmonic currents due to the interaction between primary converters operating in different conditions and connected to the same DC bus, are compensated. This strategy is suitable for the applications requiring a common DC bus such as Distributed Generations (DG) networks and it is able to avoid problems to devices connected due to low frequency harmonic currents. The compensator is modular and it is composed by cells series connected. It is controlled to minimize modulation current ripple. Thanks to the multilevel topology, the converter is able to operate in high voltage applications and permits to minimize the size of the switches. Simulations and experimental results demonstrate the effectiveness of the proposed solution.
{"title":"Harmonic and interharmonic currents compensation in DC line","authors":"M. Fioretto, L. Rubino, N. Serbia, P. Marino, G. Rubino","doi":"10.1109/SPEEDAM.2014.6872074","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2014.6872074","url":null,"abstract":"In this paper a strategy for the compensation of harmonic currents in DC bus has been proposed. By means of a multilevel converter, low amplitude harmonic currents due to the interaction between primary converters operating in different conditions and connected to the same DC bus, are compensated. This strategy is suitable for the applications requiring a common DC bus such as Distributed Generations (DG) networks and it is able to avoid problems to devices connected due to low frequency harmonic currents. The compensator is modular and it is composed by cells series connected. It is controlled to minimize modulation current ripple. Thanks to the multilevel topology, the converter is able to operate in high voltage applications and permits to minimize the size of the switches. Simulations and experimental results demonstrate the effectiveness of the proposed solution.","PeriodicalId":344918,"journal":{"name":"2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114339357","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 : 2014-06-18DOI: 10.1109/SPEEDAM.2014.6872062
E. Jamshidpour, Maryam Shahbazi, S. Saadate, P. Poure, E. Gholipour
Single-ended non-isolated DC-DC converters are used in embedded and safety critical applications. In more applications like airplanes, trains, electric vehicles, ships and distributed power systems fast fault detection is a mandatory step in order to make a suitable response to a switch fault. On the other hand, a fault tolerant topology is necessary to prevent further damage and to guaranty continuity of service. This paper proposes a very fast and efficient open circuit switch fault detection method associated to fault tolerant converter topology. Fault detection method is based on the shape of the inductor current. To perform very fast switch fault detection a Field Programmable Gate Array (FPGA) digital target is used for the implementation of the proposed method and control. No additional sensors, which increase system cost and reduce reliability, are required for this detection method. Results show that the proposed method is fast, robust, and can be done in a few microseconds.
{"title":"FPGA based fault detection and fault tolerance operation in DC-DC converters","authors":"E. Jamshidpour, Maryam Shahbazi, S. Saadate, P. Poure, E. Gholipour","doi":"10.1109/SPEEDAM.2014.6872062","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2014.6872062","url":null,"abstract":"Single-ended non-isolated DC-DC converters are used in embedded and safety critical applications. In more applications like airplanes, trains, electric vehicles, ships and distributed power systems fast fault detection is a mandatory step in order to make a suitable response to a switch fault. On the other hand, a fault tolerant topology is necessary to prevent further damage and to guaranty continuity of service. This paper proposes a very fast and efficient open circuit switch fault detection method associated to fault tolerant converter topology. Fault detection method is based on the shape of the inductor current. To perform very fast switch fault detection a Field Programmable Gate Array (FPGA) digital target is used for the implementation of the proposed method and control. No additional sensors, which increase system cost and reduce reliability, are required for this detection method. Results show that the proposed method is fast, robust, and can be done in a few microseconds.","PeriodicalId":344918,"journal":{"name":"2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114364992","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 : 2014-06-18DOI: 10.1109/SPEEDAM.2014.6871972
L. Castellini, M. Carmignano, M. D'Andrea
This paper represents the design concepts and the test results of a Permanent Magnet Synchronous Motor (PMSM) for an electro-mechanical actuator used in a laser-cutting applications, for the dynamic focus adjustment. The motor is directly integrated with the mechanical components in a rotating-ballscrew architecture in order to minimize the total inertia and the actuator's size. The dynamic motion trajectory imposes a high acceleration-torque at high speeds. A prototype has been manufactured using the design data of the optimization procedure. Due to mechanical considerations and the stringent dimensional limits, the proposed motor has the PMs directly glued on the surface of the steel nut that represents the “rotor”. Test results confirm the performance of the system and the goodness of the prototype.
{"title":"Design of a 10p-12s SMPM synchronous machine for a dynamic focus adjustment of a laser beam","authors":"L. Castellini, M. Carmignano, M. D'Andrea","doi":"10.1109/SPEEDAM.2014.6871972","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2014.6871972","url":null,"abstract":"This paper represents the design concepts and the test results of a Permanent Magnet Synchronous Motor (PMSM) for an electro-mechanical actuator used in a laser-cutting applications, for the dynamic focus adjustment. The motor is directly integrated with the mechanical components in a rotating-ballscrew architecture in order to minimize the total inertia and the actuator's size. The dynamic motion trajectory imposes a high acceleration-torque at high speeds. A prototype has been manufactured using the design data of the optimization procedure. Due to mechanical considerations and the stringent dimensional limits, the proposed motor has the PMs directly glued on the surface of the steel nut that represents the “rotor”. Test results confirm the performance of the system and the goodness of the prototype.","PeriodicalId":344918,"journal":{"name":"2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122652778","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 : 2014-06-18DOI: 10.1109/SPEEDAM.2014.6872070
C. Buccella, Carlo Cecati, M. G. Cimoroni, K. Razi
A new procedure to mitigate some harmonics is presented for a 5-level cascaded inverter, varying the modulation index. The two switching angles α1 and α2 are computed by using a procedure based on graphycal analysis by using Chebyshev polynomials and the Waring's formulae. The proposed mitigation technique is applied to reduce a pair of harmonics among third, fifth and seventh in inverter output voltage according to standard code requirements. Experimental results are also extracted by the prototype built at the laboratory. The measured results confirm the quality of the presented procedure.
{"title":"Harmonic mitigation technique for multilevel inverters in power systems","authors":"C. Buccella, Carlo Cecati, M. G. Cimoroni, K. Razi","doi":"10.1109/SPEEDAM.2014.6872070","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2014.6872070","url":null,"abstract":"A new procedure to mitigate some harmonics is presented for a 5-level cascaded inverter, varying the modulation index. The two switching angles α1 and α2 are computed by using a procedure based on graphycal analysis by using Chebyshev polynomials and the Waring's formulae. The proposed mitigation technique is applied to reduce a pair of harmonics among third, fifth and seventh in inverter output voltage according to standard code requirements. Experimental results are also extracted by the prototype built at the laboratory. The measured results confirm the quality of the presented procedure.","PeriodicalId":344918,"journal":{"name":"2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"3 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120863612","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 : 2014-06-18DOI: 10.1109/SPEEDAM.2014.6871973
L. Castellini, M. Carmignano, M. D'Andrea
This paper presents the design concepts and the test results of a Permanent Magnet Synchronous Motor (PMSM) for an electro-mechanical actuator used in a laser-welding machine for the dynamic wobble of the beam. The motor is directly integrated with the mechanical component in a rotating architecture in order to minimize the total inertia and the actuator's size. A prototype has been manufactured using the design data of the optimization procedure. Due to mechanical considerations and the stringent envelope requirements, the proposed motor has the PMs directly glued on the surface of the rotor steel made in one piece. Test results confirm the performance of the system and prototype.
{"title":"Design of 18 krpm rated speed SMPM synchronous machine for “wobble” laser welding","authors":"L. Castellini, M. Carmignano, M. D'Andrea","doi":"10.1109/SPEEDAM.2014.6871973","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2014.6871973","url":null,"abstract":"This paper presents the design concepts and the test results of a Permanent Magnet Synchronous Motor (PMSM) for an electro-mechanical actuator used in a laser-welding machine for the dynamic wobble of the beam. The motor is directly integrated with the mechanical component in a rotating architecture in order to minimize the total inertia and the actuator's size. A prototype has been manufactured using the design data of the optimization procedure. Due to mechanical considerations and the stringent envelope requirements, the proposed motor has the PMs directly glued on the surface of the rotor steel made in one piece. Test results confirm the performance of the system and prototype.","PeriodicalId":344918,"journal":{"name":"2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion","volume":"159 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126147920","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}