Pub Date : 2000-12-04DOI: 10.1109/ISIE.2000.930485
Ping Feng, Jingping Jiang
A new method for calibrating the microcontroller based instruments which have no human-machine dialog is presented. The PC is used as an external dialog component for this kind of instrument when performing calibration. By serial communication between the instrument and PC, the instrument's internal settings and parameters for application can be modified easily on the PC. After this method had been used in a practical project, the result showed it has the advantage of high performance and reliability, low cost and is easy to use.
{"title":"An easy way for calibrating measuring instruments","authors":"Ping Feng, Jingping Jiang","doi":"10.1109/ISIE.2000.930485","DOIUrl":"https://doi.org/10.1109/ISIE.2000.930485","url":null,"abstract":"A new method for calibrating the microcontroller based instruments which have no human-machine dialog is presented. The PC is used as an external dialog component for this kind of instrument when performing calibration. By serial communication between the instrument and PC, the instrument's internal settings and parameters for application can be modified easily on the PC. After this method had been used in a practical project, the result showed it has the advantage of high performance and reliability, low cost and is easy to use.","PeriodicalId":298625,"journal":{"name":"ISIE'2000. Proceedings of the 2000 IEEE International Symposium on Industrial Electronics (Cat. No.00TH8543)","volume":"174 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126830279","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 : 2000-12-04DOI: 10.1109/ISIE.2000.930359
S. R. Zavala, X.B. Cardiel
This paper presents the design and construction of a 3-axis manipulator. The paper shows the application of the manipulator to a printed-circuit-board driller system. The manipulator uses direct current motors with permanent magnets. The design of the manipulator is based on microcontrollers to control the speed and position of the motors by using full bridge DC-DC converters with a pulse-width-modulation technique. The designed manipulator includes a personal computer (PC) that works as a user interface to load the file with the numeric control format for the driller. From this information, the PC generates the required position and speed commands for each servomechanism. The paper describes in detail the software and hardware designed to measure and control the speed and the position of each servomechanism.
{"title":"A microcontroller-based 3-axis manipulator applied to a printed-circuit-board driller system","authors":"S. R. Zavala, X.B. Cardiel","doi":"10.1109/ISIE.2000.930359","DOIUrl":"https://doi.org/10.1109/ISIE.2000.930359","url":null,"abstract":"This paper presents the design and construction of a 3-axis manipulator. The paper shows the application of the manipulator to a printed-circuit-board driller system. The manipulator uses direct current motors with permanent magnets. The design of the manipulator is based on microcontrollers to control the speed and position of the motors by using full bridge DC-DC converters with a pulse-width-modulation technique. The designed manipulator includes a personal computer (PC) that works as a user interface to load the file with the numeric control format for the driller. From this information, the PC generates the required position and speed commands for each servomechanism. The paper describes in detail the software and hardware designed to measure and control the speed and the position of each servomechanism.","PeriodicalId":298625,"journal":{"name":"ISIE'2000. Proceedings of the 2000 IEEE International Symposium on Industrial Electronics (Cat. No.00TH8543)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127917307","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 : 2000-12-04DOI: 10.1109/ISIE.2000.930526
J. M. Moreno-Eguilaz, J. Peracaula, A. Esquivel
With increasing harmonic pollution in the power system, real-time monitoring and analysis of harmonic variation have become important. A neural networks based approach has been demonstrated to be a very interesting tool for this purpose. However, initial conditions are critical for real-time implementation. A selective harmonic tracking algorithm is proposed to calculate initial conditions for the neural network. In this paper, a fully digital algorithm to measure and evaluate harmonic power using a neural network together with a selective harmonic tracking method is applied to an efficient variable-speed vector-controlled 1.5 kW induction motor drive.
{"title":"Neural network based approach for the computation of harmonic power in a real-time microprocessor-based vector control for an induction motor drive","authors":"J. M. Moreno-Eguilaz, J. Peracaula, A. Esquivel","doi":"10.1109/ISIE.2000.930526","DOIUrl":"https://doi.org/10.1109/ISIE.2000.930526","url":null,"abstract":"With increasing harmonic pollution in the power system, real-time monitoring and analysis of harmonic variation have become important. A neural networks based approach has been demonstrated to be a very interesting tool for this purpose. However, initial conditions are critical for real-time implementation. A selective harmonic tracking algorithm is proposed to calculate initial conditions for the neural network. In this paper, a fully digital algorithm to measure and evaluate harmonic power using a neural network together with a selective harmonic tracking method is applied to an efficient variable-speed vector-controlled 1.5 kW induction motor drive.","PeriodicalId":298625,"journal":{"name":"ISIE'2000. Proceedings of the 2000 IEEE International Symposium on Industrial Electronics (Cat. No.00TH8543)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127745051","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 : 2000-12-04DOI: 10.1109/ISIE.2000.930349
R. Casanueva, M. Ochoa, F. Azcondo, S. Bracho
In this paper, a contribution to the electrical discharge machining (EDM) technology is presented. The final aim of this research is to develop small size EDM systems and determine the influence of the voltage and current of the output electrical arc on the quality and efficiency of the workpiece machining. The proposed system is a DC to DC LCC resonant converter intended to generate current controlled arc pulses at a constant frequency that erode the workpiece. The benefits of this proposal are: (1) the system has inherent protection under short circuit; (2) a simple linear controller results in a highly robust feedback control under load changes; and (3) the transistors turn-on at zero voltage is guaranteed at any load value. The output voltage is intended to be adjusted by an external system that controls the arc distance.
{"title":"Current mode controlled LCC resonant converter for electrical discharge machining applications","authors":"R. Casanueva, M. Ochoa, F. Azcondo, S. Bracho","doi":"10.1109/ISIE.2000.930349","DOIUrl":"https://doi.org/10.1109/ISIE.2000.930349","url":null,"abstract":"In this paper, a contribution to the electrical discharge machining (EDM) technology is presented. The final aim of this research is to develop small size EDM systems and determine the influence of the voltage and current of the output electrical arc on the quality and efficiency of the workpiece machining. The proposed system is a DC to DC LCC resonant converter intended to generate current controlled arc pulses at a constant frequency that erode the workpiece. The benefits of this proposal are: (1) the system has inherent protection under short circuit; (2) a simple linear controller results in a highly robust feedback control under load changes; and (3) the transistors turn-on at zero voltage is guaranteed at any load value. The output voltage is intended to be adjusted by an external system that controls the arc distance.","PeriodicalId":298625,"journal":{"name":"ISIE'2000. Proceedings of the 2000 IEEE International Symposium on Industrial Electronics (Cat. No.00TH8543)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127966644","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 : 2000-12-04DOI: 10.1109/ISIE.2000.930493
M. Lopez, L. Morán, J. Dixon
An active power filter implemented with multiple single-phase full bridge voltage source inverters is presented and analyzed in this paper. The proposed active power filter is aimed to compensate displacement power factor and current harmonic components in high voltage power distribution systems. A control scheme is developed to allow the operation of the inverter modules at different voltages and switching frequencies. Simulated waveforms for steady state and transient operating conditions shows the compensation characteristics of the proposed topology.
{"title":"A three-phase active power filter implemented with multiples single-phase inverter modules in series","authors":"M. Lopez, L. Morán, J. Dixon","doi":"10.1109/ISIE.2000.930493","DOIUrl":"https://doi.org/10.1109/ISIE.2000.930493","url":null,"abstract":"An active power filter implemented with multiple single-phase full bridge voltage source inverters is presented and analyzed in this paper. The proposed active power filter is aimed to compensate displacement power factor and current harmonic components in high voltage power distribution systems. A control scheme is developed to allow the operation of the inverter modules at different voltages and switching frequencies. Simulated waveforms for steady state and transient operating conditions shows the compensation characteristics of the proposed topology.","PeriodicalId":298625,"journal":{"name":"ISIE'2000. Proceedings of the 2000 IEEE International Symposium on Industrial Electronics (Cat. No.00TH8543)","volume":"28 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130479496","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 : 2000-12-04DOI: 10.1109/ISIE.2000.930328
R. Inderka, R. D. Doncker, M. Krehenbrink
An inextensive and simple method to estimate the instantaneous torque of a switched reluctance machine online is developed and discussed in this paper. The presented technique is characterized by its simplicity and robustness in two ways. Only phase current and voltage are required as input variables. Therefore, shaft position-sensors can be avoided. Furthermore, the estimation algorithm can be realized in hardware, i.e. no processor is needed, the digital unit consists only of a simple memory device such as an EPROM. The estimation technique requires the machine characteristics. The method presented in this paper estimates torque as a function of flux linkage and phase current. With this real-time estimation and feedback of the instantaneous torque it is possible to control the torque with a hysteresis controller to obtain high performance drives. Furthermore, it is shown that the performance of the drive regarding torque-ripple can be significantly enhanced. The system is developed for the control of high performance drives as they are used in traction application. Experimental and simulation results are presented in this paper.
{"title":"On-line estimation of instantaneous torque in switched reluctance machine control","authors":"R. Inderka, R. D. Doncker, M. Krehenbrink","doi":"10.1109/ISIE.2000.930328","DOIUrl":"https://doi.org/10.1109/ISIE.2000.930328","url":null,"abstract":"An inextensive and simple method to estimate the instantaneous torque of a switched reluctance machine online is developed and discussed in this paper. The presented technique is characterized by its simplicity and robustness in two ways. Only phase current and voltage are required as input variables. Therefore, shaft position-sensors can be avoided. Furthermore, the estimation algorithm can be realized in hardware, i.e. no processor is needed, the digital unit consists only of a simple memory device such as an EPROM. The estimation technique requires the machine characteristics. The method presented in this paper estimates torque as a function of flux linkage and phase current. With this real-time estimation and feedback of the instantaneous torque it is possible to control the torque with a hysteresis controller to obtain high performance drives. Furthermore, it is shown that the performance of the drive regarding torque-ripple can be significantly enhanced. The system is developed for the control of high performance drives as they are used in traction application. Experimental and simulation results are presented in this paper.","PeriodicalId":298625,"journal":{"name":"ISIE'2000. Proceedings of the 2000 IEEE International Symposium on Industrial Electronics (Cat. No.00TH8543)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132337947","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 : 2000-12-04DOI: 10.1109/ISIE.2000.930534
S. Meo, A. Perfetto
In the paper two control techniques are compared with respect to the traditional field oriented approach (FO), in order to define the range of applicability of each one. Targets of the different controls are to achieve a vector control and to generate firing commands for the quasi resonant inverter (QRI), that guarantee soft switching of the inverter switch, improving the dynamic response of the whole system. These targets are obtained by means of a state feedback approach.
{"title":"A comparison among different voltage feeding algorithms for quasi-resonant DC link inverter-fed IM drives","authors":"S. Meo, A. Perfetto","doi":"10.1109/ISIE.2000.930534","DOIUrl":"https://doi.org/10.1109/ISIE.2000.930534","url":null,"abstract":"In the paper two control techniques are compared with respect to the traditional field oriented approach (FO), in order to define the range of applicability of each one. Targets of the different controls are to achieve a vector control and to generate firing commands for the quasi resonant inverter (QRI), that guarantee soft switching of the inverter switch, improving the dynamic response of the whole system. These targets are obtained by means of a state feedback approach.","PeriodicalId":298625,"journal":{"name":"ISIE'2000. Proceedings of the 2000 IEEE International Symposium on Industrial Electronics (Cat. No.00TH8543)","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121467092","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 : 2000-12-04DOI: 10.1109/ISIE.2000.930519
C. Attaianese, V. Nardi, F. Parillo, G. Tomasso
A self-commissioning algorithm for the determination of the parameters of an induction motor fed by a VSI is proposed. It is based upon the consideration that when the motor is fed by a distorted voltage waveform, in no-load steady state operating conditions, the slips corresponding to harmonics are very near to unity. This circumstance can be exploited in order to perform an evaluation of the motor parameters only by means of a no-load test, provided that an adequate harmonic content of the feeding voltage is imposed. The validity and feasibility of the proposed algorithm are proved by experimental implementation.
{"title":"A quick and easily implementable algorithm for self-commissioning of induction motors fed by VSI","authors":"C. Attaianese, V. Nardi, F. Parillo, G. Tomasso","doi":"10.1109/ISIE.2000.930519","DOIUrl":"https://doi.org/10.1109/ISIE.2000.930519","url":null,"abstract":"A self-commissioning algorithm for the determination of the parameters of an induction motor fed by a VSI is proposed. It is based upon the consideration that when the motor is fed by a distorted voltage waveform, in no-load steady state operating conditions, the slips corresponding to harmonics are very near to unity. This circumstance can be exploited in order to perform an evaluation of the motor parameters only by means of a no-load test, provided that an adequate harmonic content of the feeding voltage is imposed. The validity and feasibility of the proposed algorithm are proved by experimental implementation.","PeriodicalId":298625,"journal":{"name":"ISIE'2000. Proceedings of the 2000 IEEE International Symposium on Industrial Electronics (Cat. No.00TH8543)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129192399","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 : 2000-12-04DOI: 10.1109/ISIE.2000.930332
J. Solsona, M. Valla
This paper deals with rotor position and speed estimation of permanent magnet synchronous motors (PMSMs). Two reduced order observers, a disturbance observer and a nonlinear one, are considered. It is shown that under exact model assumption, the nonlinear observer converges in exponential way, while a residual estimation error appears when a disturbance observer is used. Therefore, uncertainties in the mechanical submodel are taken into account. Estimation error arises due to the mismatch model; bounds for this error are calculated in both observers. Finally, a comparison of the observers performances is presented.
{"title":"Disturbance and nonlinear Luenberger observers for estimating mechanical variables in permanent magnet synchronous motors under mechanical parameters uncertainties","authors":"J. Solsona, M. Valla","doi":"10.1109/ISIE.2000.930332","DOIUrl":"https://doi.org/10.1109/ISIE.2000.930332","url":null,"abstract":"This paper deals with rotor position and speed estimation of permanent magnet synchronous motors (PMSMs). Two reduced order observers, a disturbance observer and a nonlinear one, are considered. It is shown that under exact model assumption, the nonlinear observer converges in exponential way, while a residual estimation error appears when a disturbance observer is used. Therefore, uncertainties in the mechanical submodel are taken into account. Estimation error arises due to the mismatch model; bounds for this error are calculated in both observers. Finally, a comparison of the observers performances is presented.","PeriodicalId":298625,"journal":{"name":"ISIE'2000. Proceedings of the 2000 IEEE International Symposium on Industrial Electronics (Cat. No.00TH8543)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128768611","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 : 2000-12-04DOI: 10.1109/ISIE.2000.930361
A. Valente, C. Coute, J. Correia
This paper presents an on-chip silicon bulk-micromachined soil moisture sensor (SMS) for irrigation control in greenhouses. The system-on-a-chip includes the SMS, readout electronics, self-test, calibration facilities and a digital bus interface for external data transmission. Moreover, this low-cost device can be applied in several locations (e.g. per each plant root), and networked together with the 1-wire bus. The heat-pulse technique is used (for measuring the maximum temperature on a distant point) to determine the volumetric heat capacity and hence the water content of a porous media, such as soil. In order to validate this method, experimental results were achieved with a macrosensor based on the heat-pulse and capacitance methods. The capacitance method relates the volumetric water content with the capacitance change (dielectric properties) of a probe, inserted in the soil and water contents. These results are compared with the measurement achieved using the conventional thermogravimetric method.
{"title":"On-chip integrated silicon bulk-micromachined soil moisture sensor with electronics and bus interface","authors":"A. Valente, C. Coute, J. Correia","doi":"10.1109/ISIE.2000.930361","DOIUrl":"https://doi.org/10.1109/ISIE.2000.930361","url":null,"abstract":"This paper presents an on-chip silicon bulk-micromachined soil moisture sensor (SMS) for irrigation control in greenhouses. The system-on-a-chip includes the SMS, readout electronics, self-test, calibration facilities and a digital bus interface for external data transmission. Moreover, this low-cost device can be applied in several locations (e.g. per each plant root), and networked together with the 1-wire bus. The heat-pulse technique is used (for measuring the maximum temperature on a distant point) to determine the volumetric heat capacity and hence the water content of a porous media, such as soil. In order to validate this method, experimental results were achieved with a macrosensor based on the heat-pulse and capacitance methods. The capacitance method relates the volumetric water content with the capacitance change (dielectric properties) of a probe, inserted in the soil and water contents. These results are compared with the measurement achieved using the conventional thermogravimetric method.","PeriodicalId":298625,"journal":{"name":"ISIE'2000. Proceedings of the 2000 IEEE International Symposium on Industrial Electronics (Cat. No.00TH8543)","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116834628","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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