Pub Date : 1900-01-01DOI: 10.1109/ISIE.2002.1025943
D. Casadei, G. Serra, A. Tani, L. Zarri
Input filters are usually adopted in electrical drives in order to improve the input current quality and to reduce the input voltage distortion. These filters; can determine instabilities, depending on the converter topology and drive control strategy. In this paper the stability of an electrical drive fed by a three-phase to three-phase matrix converter is analyzed considering two different input filter structures. A state average model of the whole system, assuming a constant power load, is proposed. The stability of the system is evaluated by analyzing the migration of eigenvalues of the system, which is linearized around the operating point. The analytical approach allows the determination of relationships showing the maximum output power of the matrix converter as function of the parameters of power supply and input filter. Theoretical considerations are supported by simulation results.
{"title":"Stability analysis of electrical drives fed by matrix converters","authors":"D. Casadei, G. Serra, A. Tani, L. Zarri","doi":"10.1109/ISIE.2002.1025943","DOIUrl":"https://doi.org/10.1109/ISIE.2002.1025943","url":null,"abstract":"Input filters are usually adopted in electrical drives in order to improve the input current quality and to reduce the input voltage distortion. These filters; can determine instabilities, depending on the converter topology and drive control strategy. In this paper the stability of an electrical drive fed by a three-phase to three-phase matrix converter is analyzed considering two different input filter structures. A state average model of the whole system, assuming a constant power load, is proposed. The stability of the system is evaluated by analyzing the migration of eigenvalues of the system, which is linearized around the operating point. The analytical approach allows the determination of relationships showing the maximum output power of the matrix converter as function of the parameters of power supply and input filter. Theoretical considerations are supported by simulation results.","PeriodicalId":330283,"journal":{"name":"Industrial Electronics, 2002. ISIE 2002. Proceedings of the 2002 IEEE International Symposium on","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123951062","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 : 1900-01-01DOI: 10.1109/ISIE.2002.1025821
D. Świerczyński, M. Kazmierkowski, F. Blaabjerg
This paper presents digital signal processor (DSP) based direct torque control scheme using space vector modulation (DTC-SVM) for permanent magnet synchronous motor (PMSM) drives. The analysis of PMSM shows that the increase of electromagnetic torque is proportional to the increase of the angle between the stator and rotor flux linkages and therefore fast torque response can be obtained by increasing the rotating speed of the stator flux linkage as fast as possible. The presented control strategy DTC-SVM is implemented in software of the DS1103 board. Simulations and experimental results well demonstrate the effectiveness of the proposed control scheme. Also comparison with conventional DTC scheme are given.
{"title":"DSP based direct torque control of permanent magnet synchronous motor (PMSM) using space vector modulation (DTC-SVM)","authors":"D. Świerczyński, M. Kazmierkowski, F. Blaabjerg","doi":"10.1109/ISIE.2002.1025821","DOIUrl":"https://doi.org/10.1109/ISIE.2002.1025821","url":null,"abstract":"This paper presents digital signal processor (DSP) based direct torque control scheme using space vector modulation (DTC-SVM) for permanent magnet synchronous motor (PMSM) drives. The analysis of PMSM shows that the increase of electromagnetic torque is proportional to the increase of the angle between the stator and rotor flux linkages and therefore fast torque response can be obtained by increasing the rotating speed of the stator flux linkage as fast as possible. The presented control strategy DTC-SVM is implemented in software of the DS1103 board. Simulations and experimental results well demonstrate the effectiveness of the proposed control scheme. Also comparison with conventional DTC scheme are given.","PeriodicalId":330283,"journal":{"name":"Industrial Electronics, 2002. ISIE 2002. Proceedings of the 2002 IEEE International Symposium on","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123331550","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 : 1900-01-01DOI: 10.1109/ISIE.2002.1025975
E. Chiarantoni, G. Fornarelli, S. Vergura
This article describes a technique for the formulation of the constraint equations in electrical networks containing ideal switches and characterized by, a time variant topology. The proposed method is suitable for semi-qualitative analysis of switching circuits (switch with zero RON and infinite ROFF) where a faster simulation is preferred to a precise one to focus only the behavioral performance of the circuit to analyze. In the proposed approach a set of overall constraint equations, the "Template Equations," are written at the start of the simulation. The constraint equations, for each topological configuration produced by the ON/OFF switches, are derived by TE on the basis of simple operations. The advantage of the proposed approach consist into the capability to represent, in a single set of equations, circuits with time variant topology.
{"title":"A topological approach to the analysis of switching circuits","authors":"E. Chiarantoni, G. Fornarelli, S. Vergura","doi":"10.1109/ISIE.2002.1025975","DOIUrl":"https://doi.org/10.1109/ISIE.2002.1025975","url":null,"abstract":"This article describes a technique for the formulation of the constraint equations in electrical networks containing ideal switches and characterized by, a time variant topology. The proposed method is suitable for semi-qualitative analysis of switching circuits (switch with zero RON and infinite ROFF) where a faster simulation is preferred to a precise one to focus only the behavioral performance of the circuit to analyze. In the proposed approach a set of overall constraint equations, the \"Template Equations,\" are written at the start of the simulation. The constraint equations, for each topological configuration produced by the ON/OFF switches, are derived by TE on the basis of simple operations. The advantage of the proposed approach consist into the capability to represent, in a single set of equations, circuits with time variant topology.","PeriodicalId":330283,"journal":{"name":"Industrial Electronics, 2002. ISIE 2002. Proceedings of the 2002 IEEE International Symposium on","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125386971","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 : 1900-01-01DOI: 10.1109/ISIE.2002.1025826
R. Monteiro, A. Anunciada
This paper proposes a soft-switching cell, based on the concept of input voltage cancellation or switching input supply, performed with a resonant commutated pole at the input of any bridge converter. The proposed auxiliary switching cell permits soft switching in all bridge topologies (half bridge, full bridge and 3-phase), in any load conditions, even with hi-directional input current. A simple control circuit, sampling the input current of the bridge converter, enables the adaptive operation of the soft switching cell, minimizing the circuit power losses.
{"title":"Switch input supply: a load adaptive soft-switching cell usable in all bridge DC-DC and DC-AC converters","authors":"R. Monteiro, A. Anunciada","doi":"10.1109/ISIE.2002.1025826","DOIUrl":"https://doi.org/10.1109/ISIE.2002.1025826","url":null,"abstract":"This paper proposes a soft-switching cell, based on the concept of input voltage cancellation or switching input supply, performed with a resonant commutated pole at the input of any bridge converter. The proposed auxiliary switching cell permits soft switching in all bridge topologies (half bridge, full bridge and 3-phase), in any load conditions, even with hi-directional input current. A simple control circuit, sampling the input current of the bridge converter, enables the adaptive operation of the soft switching cell, minimizing the circuit power losses.","PeriodicalId":330283,"journal":{"name":"Industrial Electronics, 2002. ISIE 2002. Proceedings of the 2002 IEEE International Symposium on","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121699427","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 : 1900-01-01DOI: 10.1109/ISIE.2002.1026363
F. Parasiliti, R. Petrella, M. Tursini
The paper presents an approach to sensorless speed control of a salient rotor permanent magnet synchronous motor, based on a high frequency signal injection scheme improved by the use of Kalman filtering. The rotor position estimation error signal is extracted from both the d- and q-axis components of the high frequency current in the estimated rotor position reference frame. Then it is processed by a Kalman filter which yields position and speed estimates, based on a parameter independent mechanical model. The problem of carrier recovery is addressed and a simple but effective solution is presented and analysed. Realistic simulations accounting for the inaccuracy of the digital implementation are presented and discussed.
{"title":"Sensorless speed control of salient rotor PM synchronous motor based on high frequency signal injection and Kalman filter","authors":"F. Parasiliti, R. Petrella, M. Tursini","doi":"10.1109/ISIE.2002.1026363","DOIUrl":"https://doi.org/10.1109/ISIE.2002.1026363","url":null,"abstract":"The paper presents an approach to sensorless speed control of a salient rotor permanent magnet synchronous motor, based on a high frequency signal injection scheme improved by the use of Kalman filtering. The rotor position estimation error signal is extracted from both the d- and q-axis components of the high frequency current in the estimated rotor position reference frame. Then it is processed by a Kalman filter which yields position and speed estimates, based on a parameter independent mechanical model. The problem of carrier recovery is addressed and a simple but effective solution is presented and analysed. Realistic simulations accounting for the inaccuracy of the digital implementation are presented and discussed.","PeriodicalId":330283,"journal":{"name":"Industrial Electronics, 2002. ISIE 2002. Proceedings of the 2002 IEEE International Symposium on","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114525448","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 : 1900-01-01DOI: 10.1109/ISIE.2002.1026080
C. Hintz, B. Angerer, D. Schroder
In this paper, the authors present an online identification method for mechatronic systems consisting of a linear part with unknown parameters and a nonlinear system part with unknown static nonlinear characteristics (systems with isolated nonlinearities). A structured recurrent neural network is used to identify the unknown parameters of the known signal flow chart. In this paper, the authors present the successful identification of a typical motion control environment consisting of a driving machine connected by an elastic shaft to the load. The presented identification algorithm uses only the speed of the driving machine for parameter adaption. Besides the detailed steps to develop the structured recurrent network, the authors present simulation results as well as measurement results. The identified linear parameters are the inertias of the driving machine and the load, the spring and damping constant of the elastic shaft. Identification results for the nonlinear friction characteristics are also derived. The novelty of this approach is the simultaneous identification of the parameters of the linear part and the nonlinearity. Due to the use of this approach physical interpretation of the identification results is possible. It is possible to use the identification results in order to optimize nonlinear observers and state space controllers.
{"title":"Online identification of a mechatronic system with structured recurrent neural networks","authors":"C. Hintz, B. Angerer, D. Schroder","doi":"10.1109/ISIE.2002.1026080","DOIUrl":"https://doi.org/10.1109/ISIE.2002.1026080","url":null,"abstract":"In this paper, the authors present an online identification method for mechatronic systems consisting of a linear part with unknown parameters and a nonlinear system part with unknown static nonlinear characteristics (systems with isolated nonlinearities). A structured recurrent neural network is used to identify the unknown parameters of the known signal flow chart. In this paper, the authors present the successful identification of a typical motion control environment consisting of a driving machine connected by an elastic shaft to the load. The presented identification algorithm uses only the speed of the driving machine for parameter adaption. Besides the detailed steps to develop the structured recurrent network, the authors present simulation results as well as measurement results. The identified linear parameters are the inertias of the driving machine and the load, the spring and damping constant of the elastic shaft. Identification results for the nonlinear friction characteristics are also derived. The novelty of this approach is the simultaneous identification of the parameters of the linear part and the nonlinearity. Due to the use of this approach physical interpretation of the identification results is possible. It is possible to use the identification results in order to optimize nonlinear observers and state space controllers.","PeriodicalId":330283,"journal":{"name":"Industrial Electronics, 2002. ISIE 2002. Proceedings of the 2002 IEEE International Symposium on","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124032607","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 : 1900-01-01DOI: 10.1109/ISIE.2002.1025971
R. Faranda, I. Valadè
After showing how the UPQC is able to-compensate for network voltage variations through different operating strategies, one such strategy is proposed whose aim is to limit the total losses of the device. An estimate was made of the extent of the losses of converters as a function of the DC section voltage and of the maximum injectable voltage from the injection transformer and, subsequently, with reference to a specific case, the optimal values for the design of the device are defined. A procedure is proposed, based on simulation of the behaviour of converters, in order to calculate the operating losses of inverters controlled in accordance with the two different PWM techniques used in controlling valves of the device in question.
{"title":"UPQC compensation strategy and design aimed at reducing losses","authors":"R. Faranda, I. Valadè","doi":"10.1109/ISIE.2002.1025971","DOIUrl":"https://doi.org/10.1109/ISIE.2002.1025971","url":null,"abstract":"After showing how the UPQC is able to-compensate for network voltage variations through different operating strategies, one such strategy is proposed whose aim is to limit the total losses of the device. An estimate was made of the extent of the losses of converters as a function of the DC section voltage and of the maximum injectable voltage from the injection transformer and, subsequently, with reference to a specific case, the optimal values for the design of the device are defined. A procedure is proposed, based on simulation of the behaviour of converters, in order to calculate the operating losses of inverters controlled in accordance with the two different PWM techniques used in controlling valves of the device in question.","PeriodicalId":330283,"journal":{"name":"Industrial Electronics, 2002. ISIE 2002. Proceedings of the 2002 IEEE International Symposium on","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128647190","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 : 1900-01-01DOI: 10.1109/ISIE.2002.1026319
T. Iino, H. Nakayama
Detailed construction of a full absolute encoder consisting of an absolute angle sensor using a diffused light optical system and a revolution counter using magnetic bubble device was discussed. Using this optical system, a high resolution (1/2020 of revolution) compact angle sensor was realized. Real time data output was also realized by using a digital signal processor. The feature of backup battery free revolution counting was brought out using precision compact magnetic circuits and electrical circuits.
{"title":"A full absolute encoder realized with a high-resolution optical angle sensor and a revolution counter using a magnetic bubble device","authors":"T. Iino, H. Nakayama","doi":"10.1109/ISIE.2002.1026319","DOIUrl":"https://doi.org/10.1109/ISIE.2002.1026319","url":null,"abstract":"Detailed construction of a full absolute encoder consisting of an absolute angle sensor using a diffused light optical system and a revolution counter using magnetic bubble device was discussed. Using this optical system, a high resolution (1/2020 of revolution) compact angle sensor was realized. Real time data output was also realized by using a digital signal processor. The feature of backup battery free revolution counting was brought out using precision compact magnetic circuits and electrical circuits.","PeriodicalId":330283,"journal":{"name":"Industrial Electronics, 2002. ISIE 2002. Proceedings of the 2002 IEEE International Symposium on","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128559676","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 : 1900-01-01DOI: 10.1109/ISIE.2002.1026072
T. Kokubu, Noriki Uchida, M. Oku, K. Kamiyama
In the factory automation (FA) area of the manufacturing industry, maintenance management for improving the operational efficiency of equipment is very important. The production line, which is highly automated and is operated by a small number of staff, is very sensitive to unexpected troubles. If there is little information about the troubles, diagnosis and repair of equipment will take time and production efficiency will fall as a result. A programmable controller (PC) is adopted as machine control of a production line in many manufacturing industries. Generally the ladder diagram, which imitates the electric circuit, is used for the PC program. If equipment is highly automated, the volume of a ladder diagram increases, and it becomes complicated and it is impossible to maintain. This paper proposes automatic diagnosis (AD) for PC, which supports maintenance powerfully at the time of equipment failure. The AD features a simple and standard expression, it can be applied to any PCs, has been independent of an application program, and is not influenced by program change. The authors found out many advantages compared with the conventional troubleshooting, as a result of applying AD to actual equipment.
{"title":"Automatic diagnosis on sequential machine control","authors":"T. Kokubu, Noriki Uchida, M. Oku, K. Kamiyama","doi":"10.1109/ISIE.2002.1026072","DOIUrl":"https://doi.org/10.1109/ISIE.2002.1026072","url":null,"abstract":"In the factory automation (FA) area of the manufacturing industry, maintenance management for improving the operational efficiency of equipment is very important. The production line, which is highly automated and is operated by a small number of staff, is very sensitive to unexpected troubles. If there is little information about the troubles, diagnosis and repair of equipment will take time and production efficiency will fall as a result. A programmable controller (PC) is adopted as machine control of a production line in many manufacturing industries. Generally the ladder diagram, which imitates the electric circuit, is used for the PC program. If equipment is highly automated, the volume of a ladder diagram increases, and it becomes complicated and it is impossible to maintain. This paper proposes automatic diagnosis (AD) for PC, which supports maintenance powerfully at the time of equipment failure. The AD features a simple and standard expression, it can be applied to any PCs, has been independent of an application program, and is not influenced by program change. The authors found out many advantages compared with the conventional troubleshooting, as a result of applying AD to actual equipment.","PeriodicalId":330283,"journal":{"name":"Industrial Electronics, 2002. ISIE 2002. Proceedings of the 2002 IEEE International Symposium on","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128375617","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 : 1900-01-01DOI: 10.1109/ISIE.2002.1026367
S. Bolognani, M. Zigliotto
This paper proposes a novel systematic approach to the analysis and design of three-phase current controllers based on the space vector theory. Balanced load currents are considered so that the control is performed by two loops only. According to the proposed space-vector methodology, the two control loops are examined together, as if they were a single system. Well known controllers are reviewed in the frame of the new approach, and new controllers are envisaged. The advantages and pitfalls of each scheme are easily recognised and discussed.
{"title":"A space-vector approach to the analysis and design of three-phase current controllers","authors":"S. Bolognani, M. Zigliotto","doi":"10.1109/ISIE.2002.1026367","DOIUrl":"https://doi.org/10.1109/ISIE.2002.1026367","url":null,"abstract":"This paper proposes a novel systematic approach to the analysis and design of three-phase current controllers based on the space vector theory. Balanced load currents are considered so that the control is performed by two loops only. According to the proposed space-vector methodology, the two control loops are examined together, as if they were a single system. Well known controllers are reviewed in the frame of the new approach, and new controllers are envisaged. The advantages and pitfalls of each scheme are easily recognised and discussed.","PeriodicalId":330283,"journal":{"name":"Industrial Electronics, 2002. ISIE 2002. Proceedings of the 2002 IEEE International Symposium on","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126124890","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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