Pub Date : 2001-11-29DOI: 10.1109/IECON.2001.975603
Yigang Shi, P. C. Sen
This paper presents a comprehensive study of different types of PID-like fuzzy logic controllers, such as fuzzy-P, fuzzy-PD, fuzzy-PI, and fuzzy PID, for application to DC-DC converters. Fuzzy-PI controllers are popular. However these generally give overshoot in output voltage and high initial current when rise time of response is reduced. A variable structure fuzzy logic controller (VS-FLC) is proposed in this paper to overcome these disadvantages of fuzzy-PI controllers. Computer simulations are performed to investigate the performance of the proposed variable structure FLC controller applied to a DC-DC converter system and better starting and steady state performance is obtained.
{"title":"Application of variable structure fuzzy logic controller for DC-DC converters","authors":"Yigang Shi, P. C. Sen","doi":"10.1109/IECON.2001.975603","DOIUrl":"https://doi.org/10.1109/IECON.2001.975603","url":null,"abstract":"This paper presents a comprehensive study of different types of PID-like fuzzy logic controllers, such as fuzzy-P, fuzzy-PD, fuzzy-PI, and fuzzy PID, for application to DC-DC converters. Fuzzy-PI controllers are popular. However these generally give overshoot in output voltage and high initial current when rise time of response is reduced. A variable structure fuzzy logic controller (VS-FLC) is proposed in this paper to overcome these disadvantages of fuzzy-PI controllers. Computer simulations are performed to investigate the performance of the proposed variable structure FLC controller applied to a DC-DC converter system and better starting and steady state performance is obtained.","PeriodicalId":345608,"journal":{"name":"IECON'01. 27th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.37243)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121748091","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 : 2001-11-29DOI: 10.1109/IECON.2001.975636
P. Predonzani, A. Sillitti, T. Vernazza
The World Wide Web is moving from providing mainly hypertext content to users to new kinds of automated services. Standards lead this change and create a common ground for content representation, exchange and manipulation. New services can be built by integrating existing ones. The paper presents an integration architecture and a tool based on components and data-flow paradigms. The discussion highlights integration problems in information representation, service access, semantic compatibility, and non-functional properties. A case study presents the integration of timetables from three airline Web-services.
{"title":"Components and data-flow applied to the integration of Web services","authors":"P. Predonzani, A. Sillitti, T. Vernazza","doi":"10.1109/IECON.2001.975636","DOIUrl":"https://doi.org/10.1109/IECON.2001.975636","url":null,"abstract":"The World Wide Web is moving from providing mainly hypertext content to users to new kinds of automated services. Standards lead this change and create a common ground for content representation, exchange and manipulation. New services can be built by integrating existing ones. The paper presents an integration architecture and a tool based on components and data-flow paradigms. The discussion highlights integration problems in information representation, service access, semantic compatibility, and non-functional properties. A case study presents the integration of timetables from three airline Web-services.","PeriodicalId":345608,"journal":{"name":"IECON'01. 27th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.37243)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114800515","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 : 2001-11-29DOI: 10.1109/IECON.2001.976005
Chen Hao, Xie Guilin
A developed locomotive in coal mine drawn by the parallel drive system of double switched reluctance motors is introduced. The operational principles, the control pattern and the component parts of the traction and the regenerative braking operation are proposed. The drive system contributes to reduce the cost of utilization of the locomotive per ton kilometer.
{"title":"The parallel drive system of the double switched reluctance motors for locomotive traction application","authors":"Chen Hao, Xie Guilin","doi":"10.1109/IECON.2001.976005","DOIUrl":"https://doi.org/10.1109/IECON.2001.976005","url":null,"abstract":"A developed locomotive in coal mine drawn by the parallel drive system of double switched reluctance motors is introduced. The operational principles, the control pattern and the component parts of the traction and the regenerative braking operation are proposed. The drive system contributes to reduce the cost of utilization of the locomotive per ton kilometer.","PeriodicalId":345608,"journal":{"name":"IECON'01. 27th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.37243)","volume":"9 11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124069841","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 : 2001-11-29DOI: 10.1109/IECON.2001.976503
T. Takahashi, A. Kawamura
Foot toes of biped robots have not been used until landing of a swing-leg in the almost of all past researches. When a sole of a robot keeps surface contact with floor, usual control methods for normal robots, which are fixed on floor, can be used. This means that the motion of a body is limited to quiet motion. However, robots should be able to go on walking even when the contact becomes a point contact, if the body posture and a landing point can be controlled. In this paper, a new control method for biped robots, of which the contact between the sole and the floor becomes a point contact, is proposed. By this method, the ZMP (the Zero Moment Point) is not necessary to be the inside of the support phase at all time, therefore the motion of the body has not to be limited to the quiet motion. So, fast walking and abundant motions of biped robots can be implemented by the proposed method. When the torque can not be applied between the sole and the floor, robots must follow a forward falling. In the proposed method, robots track desired trajectories while robots are falling forward. Simulation results show that the COM (the Center of Mass) and the heel position of the swing-leg can track a desired circle path and heel joint angles can be controlled to desired angles while a biped walking mode is forward falling, and it able to walk continuously, in addition, a walking time cycle is automatically, decided, which is fit to dynamics of each walking model.
{"title":"Posture control for biped robot walk with foot toe and sole","authors":"T. Takahashi, A. Kawamura","doi":"10.1109/IECON.2001.976503","DOIUrl":"https://doi.org/10.1109/IECON.2001.976503","url":null,"abstract":"Foot toes of biped robots have not been used until landing of a swing-leg in the almost of all past researches. When a sole of a robot keeps surface contact with floor, usual control methods for normal robots, which are fixed on floor, can be used. This means that the motion of a body is limited to quiet motion. However, robots should be able to go on walking even when the contact becomes a point contact, if the body posture and a landing point can be controlled. In this paper, a new control method for biped robots, of which the contact between the sole and the floor becomes a point contact, is proposed. By this method, the ZMP (the Zero Moment Point) is not necessary to be the inside of the support phase at all time, therefore the motion of the body has not to be limited to the quiet motion. So, fast walking and abundant motions of biped robots can be implemented by the proposed method. When the torque can not be applied between the sole and the floor, robots must follow a forward falling. In the proposed method, robots track desired trajectories while robots are falling forward. Simulation results show that the COM (the Center of Mass) and the heel position of the swing-leg can track a desired circle path and heel joint angles can be controlled to desired angles while a biped walking mode is forward falling, and it able to walk continuously, in addition, a walking time cycle is automatically, decided, which is fit to dynamics of each walking model.","PeriodicalId":345608,"journal":{"name":"IECON'01. 27th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.37243)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127884910","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 : 2001-11-29DOI: 10.1109/IECON.2001.976528
Cheng-Yuan Chang, K. Shyu
The proposed fuzzy method guarantees an active noise control (ANC) system against unstable poles as in the conventional filtered-U design; the performance is hence improved. Besides, the fuzzy algorithm uses the input-output data relationships of the ANC system instead to construct the control rules. The design complexity is consequently reduced.
{"title":"A self-tuning fuzzy filtered-U algorithm with the application of active noise control","authors":"Cheng-Yuan Chang, K. Shyu","doi":"10.1109/IECON.2001.976528","DOIUrl":"https://doi.org/10.1109/IECON.2001.976528","url":null,"abstract":"The proposed fuzzy method guarantees an active noise control (ANC) system against unstable poles as in the conventional filtered-U design; the performance is hence improved. Besides, the fuzzy algorithm uses the input-output data relationships of the ANC system instead to construct the control rules. The design complexity is consequently reduced.","PeriodicalId":345608,"journal":{"name":"IECON'01. 27th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.37243)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125622817","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 : 2001-11-29DOI: 10.1109/IECON.2001.976505
D. Isobe
In this study, a scheme using the Finite Element Method (FEM) for calculating inverse dynamics is proposed and applied to open- and closed-loop link mechanisms. In this scheme, the entire system is subdivided into discrete elements and evaluated as a continuum. A single-link structure of a pin joint and a rigid bar is expressed by using the Shifted Integration (SI) technique. The proposed scheme calculates nodal forces by evaluating equations of motion in a matrix form, and thus information from the entire system can be handled in parallel. The obtained nodal forces are then used to calculate the joint torque in the system. Simple numerical tests on open- and closed-loop link mechanisms are carried out, and it is verified that the scheme can be used as a unified numerical scheme independent of the system configuration.
{"title":"A unified numerical scheme for calculating inverse dynamics of open/closed link mechanisms","authors":"D. Isobe","doi":"10.1109/IECON.2001.976505","DOIUrl":"https://doi.org/10.1109/IECON.2001.976505","url":null,"abstract":"In this study, a scheme using the Finite Element Method (FEM) for calculating inverse dynamics is proposed and applied to open- and closed-loop link mechanisms. In this scheme, the entire system is subdivided into discrete elements and evaluated as a continuum. A single-link structure of a pin joint and a rigid bar is expressed by using the Shifted Integration (SI) technique. The proposed scheme calculates nodal forces by evaluating equations of motion in a matrix form, and thus information from the entire system can be handled in parallel. The obtained nodal forces are then used to calculate the joint torque in the system. Simple numerical tests on open- and closed-loop link mechanisms are carried out, and it is verified that the scheme can be used as a unified numerical scheme independent of the system configuration.","PeriodicalId":345608,"journal":{"name":"IECON'01. 27th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.37243)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127945400","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 : 2001-11-29DOI: 10.1109/IECON.2001.976532
Gi-Taek Kim, Hyuck-Soo Kim, Hmg-Yong Choi
A continuous and reliable electrical energy supply is the objective of any power system operation. A transmission line is the part of the power system where faults are most likely to happen. This paper describes the use of the wavelet transform for analyzing power system fault transients in order to determine the fault location. Synchronized sampling was made possible by precise time receivers based on GPS time reference, and the sampled data were analyzed using wavelet transform. This paper describes a fault location monitoring system and fault locating algorithm with GPS, DSP processor, and data acquisition board, and presents some experimental results and error analysis.
{"title":"Wavelet transform based power transmission line fault location using GPS for accurate time synchronization","authors":"Gi-Taek Kim, Hyuck-Soo Kim, Hmg-Yong Choi","doi":"10.1109/IECON.2001.976532","DOIUrl":"https://doi.org/10.1109/IECON.2001.976532","url":null,"abstract":"A continuous and reliable electrical energy supply is the objective of any power system operation. A transmission line is the part of the power system where faults are most likely to happen. This paper describes the use of the wavelet transform for analyzing power system fault transients in order to determine the fault location. Synchronized sampling was made possible by precise time receivers based on GPS time reference, and the sampled data were analyzed using wavelet transform. This paper describes a fault location monitoring system and fault locating algorithm with GPS, DSP processor, and data acquisition board, and presents some experimental results and error analysis.","PeriodicalId":345608,"journal":{"name":"IECON'01. 27th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.37243)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115844603","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 : 2001-11-29DOI: 10.1109/IECON.2001.976523
N. Ando, K. Morioka, P. Szemes, H. Hashimoto
Discusses a control scheme for a 6-DOF haptic interface for tele-micromanipulation systems. We have developed micro-teleoperation systems for micro tasks, such as assembly or manufacturing. We introduce a haptic interface that gives operators a sense of presence, as if he/she is touching an expanded version of the micro-object with his/her fingers. First, the system structure of the master manipulator and its system configuration are shown. To improve the free-motion performance and response-force isotropy of the master haptic device, a model-reference adaptive controller (MRAC) is introduced. Some experiments are conducted and their results are evaluated. Furthermore, we connected the master systems and a slave system through a network and evaluated the teleoperation property. Finally, we conclude with a discussion about our experimental results and a statement about our future work.
{"title":"Development of 6-DOF haptic interface for tele-micromanipulation systems","authors":"N. Ando, K. Morioka, P. Szemes, H. Hashimoto","doi":"10.1109/IECON.2001.976523","DOIUrl":"https://doi.org/10.1109/IECON.2001.976523","url":null,"abstract":"Discusses a control scheme for a 6-DOF haptic interface for tele-micromanipulation systems. We have developed micro-teleoperation systems for micro tasks, such as assembly or manufacturing. We introduce a haptic interface that gives operators a sense of presence, as if he/she is touching an expanded version of the micro-object with his/her fingers. First, the system structure of the master manipulator and its system configuration are shown. To improve the free-motion performance and response-force isotropy of the master haptic device, a model-reference adaptive controller (MRAC) is introduced. Some experiments are conducted and their results are evaluated. Furthermore, we connected the master systems and a slave system through a network and evaluated the teleoperation property. Finally, we conclude with a discussion about our experimental results and a statement about our future work.","PeriodicalId":345608,"journal":{"name":"IECON'01. 27th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.37243)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130079702","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 : 2001-11-29DOI: 10.1109/IECON.2001.976444
T. Chan, S. Kwong, K.F. Man, K. Tang
This paper deals with the minimization of the total system cost in the PCS network using CDMA cellular system standard. The total system cost includes the installation costs of base stations (BS), base station controllers (BSC) and PCS exchanges (PCX), the weighted-distance connection costs between BS and BSC and between BSC and PCX and the hard handoff cost. Our objective is to keep each of these costs at a minimum with guaranteed service performance. However, there exists a tradeoff property between these costs. Therefore, we use an efficient and effective searching technique, hierarchical genetic algorithms (HGA), which has the ability to handle multiobjective functions and various constraints and find multiple different solutions for decision making.
{"title":"Total system cost minimization in CDMA PCS network using hierarchical genetic algorithms","authors":"T. Chan, S. Kwong, K.F. Man, K. Tang","doi":"10.1109/IECON.2001.976444","DOIUrl":"https://doi.org/10.1109/IECON.2001.976444","url":null,"abstract":"This paper deals with the minimization of the total system cost in the PCS network using CDMA cellular system standard. The total system cost includes the installation costs of base stations (BS), base station controllers (BSC) and PCS exchanges (PCX), the weighted-distance connection costs between BS and BSC and between BSC and PCX and the hard handoff cost. Our objective is to keep each of these costs at a minimum with guaranteed service performance. However, there exists a tradeoff property between these costs. Therefore, we use an efficient and effective searching technique, hierarchical genetic algorithms (HGA), which has the ability to handle multiobjective functions and various constraints and find multiple different solutions for decision making.","PeriodicalId":345608,"journal":{"name":"IECON'01. 27th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.37243)","volume":"567 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134209709","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 : 2001-11-29DOI: 10.1109/IECON.2001.976016
Tae-Sung Kim, Sung-Chan Ahn, D. Hyun
The BLDC (brushless DC) motor is characterized by linear torque to current and speed to voltage. It has low acoustic noise and fast dynamic response. Moreover, it has high power density with a high proportion of torque to inertia in spite of a small size drive. However, when armature current is commutated, the current ripple is generated by the motor inductance components in stator windings and back-EMF This current ripple caused torque ripple. Therefore, it is difficult to apply the BLDC motor to a precision servo drive system. In this paper, a new current control algorithm using Fourier series coefficients is proposed. This proposed algorithm can minimize torque ripple due to the phase current commutation of a BLDC motor. Simulation and experimental results prove the effectiveness at the proposed algorithm through comparison with the conventional unipolar PWM method.
{"title":"A new current control algorithm for torque ripple reduction of BLDC motors","authors":"Tae-Sung Kim, Sung-Chan Ahn, D. Hyun","doi":"10.1109/IECON.2001.976016","DOIUrl":"https://doi.org/10.1109/IECON.2001.976016","url":null,"abstract":"The BLDC (brushless DC) motor is characterized by linear torque to current and speed to voltage. It has low acoustic noise and fast dynamic response. Moreover, it has high power density with a high proportion of torque to inertia in spite of a small size drive. However, when armature current is commutated, the current ripple is generated by the motor inductance components in stator windings and back-EMF This current ripple caused torque ripple. Therefore, it is difficult to apply the BLDC motor to a precision servo drive system. In this paper, a new current control algorithm using Fourier series coefficients is proposed. This proposed algorithm can minimize torque ripple due to the phase current commutation of a BLDC motor. Simulation and experimental results prove the effectiveness at the proposed algorithm through comparison with the conventional unipolar PWM method.","PeriodicalId":345608,"journal":{"name":"IECON'01. 27th Annual Conference of the IEEE Industrial Electronics Society (Cat. No.37243)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132617715","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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