Pub Date : 1999-07-28DOI: 10.1109/SICE.1999.788670
S. Yaacob, F. Mohamed
The self-tuning speed control of induction motor drives is presented using proportional plus integral (PI) method combined with the recursive least squares parameter estimation method to regulate the motor speed and load variation. To obtain good tracking and control characteristics, a PI self-tuning controller is adopted and the design procedure is developed for systematically finding its parameters according to the recursive least square method. The performance of the PI self-tuning controller greatly improves due to the integral action which eliminate the disturbance and the steady-state error. In addition, the RLS identification minimizes the error between the actual plant parameter and the recently estimated plant parameter.
{"title":"Real time self tuning controller for induction motor based on PI method","authors":"S. Yaacob, F. Mohamed","doi":"10.1109/SICE.1999.788670","DOIUrl":"https://doi.org/10.1109/SICE.1999.788670","url":null,"abstract":"The self-tuning speed control of induction motor drives is presented using proportional plus integral (PI) method combined with the recursive least squares parameter estimation method to regulate the motor speed and load variation. To obtain good tracking and control characteristics, a PI self-tuning controller is adopted and the design procedure is developed for systematically finding its parameters according to the recursive least square method. The performance of the PI self-tuning controller greatly improves due to the integral action which eliminate the disturbance and the steady-state error. In addition, the RLS identification minimizes the error between the actual plant parameter and the recently estimated plant parameter.","PeriodicalId":103164,"journal":{"name":"SICE '99. Proceedings of the 38th SICE Annual Conference. International Session Papers (IEEE Cat. No.99TH8456)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126842281","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 : 1999-07-28DOI: 10.1109/SICE.1999.788590
H. Shimizu, M. Kobayashi, Y. Yonezawa
Travel time is a measure of traffic flows in traffic networks and indispensable for the dynamic route guidance system. The queue length and congestion length are described by a nonlinear discrete dynamic system at signalized intersections based on the volume balance. The mean link travel time are analyzed according to the classification of the congestion, offset control and moving direction at downstream signalized intersections in urban traffic networks. The mean link travel time are measured by the average rate of speed of the traffic stream which is one of test-car techniques. The mean link and OD travel time are evaluated for three routes in Fukuyama city according to their analyses. The evaluation values of mean link travel time are compared with the measurement values for each time interval.
{"title":"Evaluation of mean link travel time for urban traffic networks","authors":"H. Shimizu, M. Kobayashi, Y. Yonezawa","doi":"10.1109/SICE.1999.788590","DOIUrl":"https://doi.org/10.1109/SICE.1999.788590","url":null,"abstract":"Travel time is a measure of traffic flows in traffic networks and indispensable for the dynamic route guidance system. The queue length and congestion length are described by a nonlinear discrete dynamic system at signalized intersections based on the volume balance. The mean link travel time are analyzed according to the classification of the congestion, offset control and moving direction at downstream signalized intersections in urban traffic networks. The mean link travel time are measured by the average rate of speed of the traffic stream which is one of test-car techniques. The mean link and OD travel time are evaluated for three routes in Fukuyama city according to their analyses. The evaluation values of mean link travel time are compared with the measurement values for each time interval.","PeriodicalId":103164,"journal":{"name":"SICE '99. Proceedings of the 38th SICE Annual Conference. International Session Papers (IEEE Cat. No.99TH8456)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121743254","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 : 1999-07-28DOI: 10.1109/SICE.1999.788668
Y. Pang, Xiangyu Wei, Youhua Wu
This paper presents a sensor network based on LonWorks technology. The network structure, its protocol and the sensor nodes in it are discussed. Also, the implementation method of such network, including its hardware and software is given. Because of the characteristic of the sensor network based on LonWorks, such as the protocol consistent with the ISO/OSI model, the interoperability and the multiple medium support etc., the sensor network will get more applications in the future.
{"title":"The sensor network based on LONWORKS technology","authors":"Y. Pang, Xiangyu Wei, Youhua Wu","doi":"10.1109/SICE.1999.788668","DOIUrl":"https://doi.org/10.1109/SICE.1999.788668","url":null,"abstract":"This paper presents a sensor network based on LonWorks technology. The network structure, its protocol and the sensor nodes in it are discussed. Also, the implementation method of such network, including its hardware and software is given. Because of the characteristic of the sensor network based on LonWorks, such as the protocol consistent with the ISO/OSI model, the interoperability and the multiple medium support etc., the sensor network will get more applications in the future.","PeriodicalId":103164,"journal":{"name":"SICE '99. Proceedings of the 38th SICE Annual Conference. International Session Papers (IEEE Cat. No.99TH8456)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131889124","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 : 1999-07-28DOI: 10.1109/SICE.1999.788712
H. Lee, J. Choi
This work is concerned with the decoupling and tracking control for linear time-varying systems such as missiles, rockets, fighters, etc. Despite its well-known limitations, gain-scheduling control appeared to be focus of the research efforts. Scheduling of frozen-time, frozen-state controller for fast time-varying dynamics is known to be mathematically fallacious, and practically hazardous. Therefore, recent research efforts are being directed towards applying time-varying controllers. In this paper, i) we introduce a differential algebraic eigenvalue theory for linear time-varying systems, and ii) a novel decoupling and tracking control scheme is proposed by using the PD-eigenstructure assignment scheme via differential Sylvester equation and CGT (command generator tracker) for linear time-varying systems. The presented method is illustrated by numerical examples.
{"title":"Decoupling and tracking control for linear time-varying systems using eigenstructure assignment and CGT","authors":"H. Lee, J. Choi","doi":"10.1109/SICE.1999.788712","DOIUrl":"https://doi.org/10.1109/SICE.1999.788712","url":null,"abstract":"This work is concerned with the decoupling and tracking control for linear time-varying systems such as missiles, rockets, fighters, etc. Despite its well-known limitations, gain-scheduling control appeared to be focus of the research efforts. Scheduling of frozen-time, frozen-state controller for fast time-varying dynamics is known to be mathematically fallacious, and practically hazardous. Therefore, recent research efforts are being directed towards applying time-varying controllers. In this paper, i) we introduce a differential algebraic eigenvalue theory for linear time-varying systems, and ii) a novel decoupling and tracking control scheme is proposed by using the PD-eigenstructure assignment scheme via differential Sylvester equation and CGT (command generator tracker) for linear time-varying systems. The presented method is illustrated by numerical examples.","PeriodicalId":103164,"journal":{"name":"SICE '99. Proceedings of the 38th SICE Annual Conference. International Session Papers (IEEE Cat. No.99TH8456)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133365004","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 : 1999-07-28DOI: 10.1109/SICE.1999.788682
Y. Takahashi, Y. Kikuchi, T. Ibaraki, S. Ogawa
A food tray carrying robot with a three-dimensional drive system and a man-machine interface is proposed. No electrical power is required to maintain the horizontal position of a food tray since a parallel link mechanism is used in the radial direction drive mechanism. The three-dimensional man-machine interface using strain gages is set under the food tray. A patient needs only small finger force to move the food tray because of the use of the three-dimensional man-machine interface. In the paper, the concept of the food tray carrying robot, the mechanical construction, the three-dimensional man-machine interface using strain gages, the control system, some of the experimental results, and the modeling of the robot arm are presented.
{"title":"Food tray carrying robot with man-machine interface","authors":"Y. Takahashi, Y. Kikuchi, T. Ibaraki, S. Ogawa","doi":"10.1109/SICE.1999.788682","DOIUrl":"https://doi.org/10.1109/SICE.1999.788682","url":null,"abstract":"A food tray carrying robot with a three-dimensional drive system and a man-machine interface is proposed. No electrical power is required to maintain the horizontal position of a food tray since a parallel link mechanism is used in the radial direction drive mechanism. The three-dimensional man-machine interface using strain gages is set under the food tray. A patient needs only small finger force to move the food tray because of the use of the three-dimensional man-machine interface. In the paper, the concept of the food tray carrying robot, the mechanical construction, the three-dimensional man-machine interface using strain gages, the control system, some of the experimental results, and the modeling of the robot arm are presented.","PeriodicalId":103164,"journal":{"name":"SICE '99. Proceedings of the 38th SICE Annual Conference. International Session Papers (IEEE Cat. No.99TH8456)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133372985","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 : 1999-07-28DOI: 10.1109/SICE.1999.788669
F. Khater, F. Ahmed, F. El-Sousy
This paper presents the analysis, design and simulation of the indirect field orientation control (IFOC) machine drive system. The control scheme is explained using the principle of field orientation for the control of an inverter fed induction machine. The two degrees-of-freedom PI controllers (2DOFC) are used for the speed and current control to reduce the effects of parameter variations and external disturbances. To verify the design of controllers and system performance, the drive system simulation is carried out using SIMULINK for MATLAB. An IFOC induction machine drive system Toolbox is created to contain the adequate useful blocks in simulation of this control system. The desired current and speed tracking control performances of the drive can be preserved under a wide operating range, and good load regulating performance can also be obtained. The dynamic performance of the drive system for different operating conditions is studied.
{"title":"Analysis and design of indirect field orientation control for induction machine drive system","authors":"F. Khater, F. Ahmed, F. El-Sousy","doi":"10.1109/SICE.1999.788669","DOIUrl":"https://doi.org/10.1109/SICE.1999.788669","url":null,"abstract":"This paper presents the analysis, design and simulation of the indirect field orientation control (IFOC) machine drive system. The control scheme is explained using the principle of field orientation for the control of an inverter fed induction machine. The two degrees-of-freedom PI controllers (2DOFC) are used for the speed and current control to reduce the effects of parameter variations and external disturbances. To verify the design of controllers and system performance, the drive system simulation is carried out using SIMULINK for MATLAB. An IFOC induction machine drive system Toolbox is created to contain the adequate useful blocks in simulation of this control system. The desired current and speed tracking control performances of the drive can be preserved under a wide operating range, and good load regulating performance can also be obtained. The dynamic performance of the drive system for different operating conditions is studied.","PeriodicalId":103164,"journal":{"name":"SICE '99. Proceedings of the 38th SICE Annual Conference. International Session Papers (IEEE Cat. No.99TH8456)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115931126","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 : 1999-07-28DOI: 10.1109/SICE.1999.788674
T.S. Cho, S. Choi, Y.C. Kim
We consider the problem of designing P, PI and PID controllers for interval plants. It is known from the area of parametric robust control that the stabilization problem for an interval plant are reduced to the equivalent problem of stabilizing either a finite set of certain extremal plants. This paper shows that under special conditions imposed on controller parameters and the order of plant, the number of extremal plants required for stabilization on PID controllers are reduced. Thereafter, using Ho's method, it allows one to obtain all the stabilizing set of PID gains for a interval plant family. We assure that the coefficient diagram method (CDM) is very useful for designing a controller because the design in CDM is not only carried out directly in the parameter space but also easy to meet the time domain specification, as shown in a numerical example.
{"title":"Robust design of PID controller for interval plants","authors":"T.S. Cho, S. Choi, Y.C. Kim","doi":"10.1109/SICE.1999.788674","DOIUrl":"https://doi.org/10.1109/SICE.1999.788674","url":null,"abstract":"We consider the problem of designing P, PI and PID controllers for interval plants. It is known from the area of parametric robust control that the stabilization problem for an interval plant are reduced to the equivalent problem of stabilizing either a finite set of certain extremal plants. This paper shows that under special conditions imposed on controller parameters and the order of plant, the number of extremal plants required for stabilization on PID controllers are reduced. Thereafter, using Ho's method, it allows one to obtain all the stabilizing set of PID gains for a interval plant family. We assure that the coefficient diagram method (CDM) is very useful for designing a controller because the design in CDM is not only carried out directly in the parameter space but also easy to meet the time domain specification, as shown in a numerical example.","PeriodicalId":103164,"journal":{"name":"SICE '99. Proceedings of the 38th SICE Annual Conference. International Session Papers (IEEE Cat. No.99TH8456)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124647132","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 : 1999-07-28DOI: 10.1109/SICE.1999.788676
U. Park, Joo Ho Kim, Sin Jong Kim, J. Choi, Jong Shik Kim
We develop a parallel inverted pendulum system that has the characteristics of the strongly coupled dynamics of motion by an elastic spring, the time-varying system parameters, and inherent instability, etc. Hence, it is possible to approximate some kinds of a physical system into this representative system and apply the various control theories to this system in order to verify their fidelity and efficiency. For this purpose, an experimental system of the parallel inverted pendulum is implemented, and a control scheme using the eigenstructure assignment in the decoupling control is presented in comparison with the LQR optimal control method. Furthermore, this system can be utilized as a testbed to develop and evaluate new control algorithms through various setups. Finally, results of the experiment are compared with those of numerical simulations for validation.
{"title":"Development of a parallel inverted pendulum system and its control","authors":"U. Park, Joo Ho Kim, Sin Jong Kim, J. Choi, Jong Shik Kim","doi":"10.1109/SICE.1999.788676","DOIUrl":"https://doi.org/10.1109/SICE.1999.788676","url":null,"abstract":"We develop a parallel inverted pendulum system that has the characteristics of the strongly coupled dynamics of motion by an elastic spring, the time-varying system parameters, and inherent instability, etc. Hence, it is possible to approximate some kinds of a physical system into this representative system and apply the various control theories to this system in order to verify their fidelity and efficiency. For this purpose, an experimental system of the parallel inverted pendulum is implemented, and a control scheme using the eigenstructure assignment in the decoupling control is presented in comparison with the LQR optimal control method. Furthermore, this system can be utilized as a testbed to develop and evaluate new control algorithms through various setups. Finally, results of the experiment are compared with those of numerical simulations for validation.","PeriodicalId":103164,"journal":{"name":"SICE '99. Proceedings of the 38th SICE Annual Conference. International Session Papers (IEEE Cat. No.99TH8456)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124900159","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 : 1999-07-28DOI: 10.1109/SICE.1999.788691
Cuijing Ding, Xueqing Wang, J. Nan
Introduces a multi-function monitoring and analysis system. By using real data acquired from the field, the system can carry out real-time simulation of the boiler's dynamic characteristic and online analysis of the unit's dynamic thermal effectiveness, thus providing valuable information for the unit's operation.
{"title":"Online analysis of dynamic characteristic for 410t/h boiler","authors":"Cuijing Ding, Xueqing Wang, J. Nan","doi":"10.1109/SICE.1999.788691","DOIUrl":"https://doi.org/10.1109/SICE.1999.788691","url":null,"abstract":"Introduces a multi-function monitoring and analysis system. By using real data acquired from the field, the system can carry out real-time simulation of the boiler's dynamic characteristic and online analysis of the unit's dynamic thermal effectiveness, thus providing valuable information for the unit's operation.","PeriodicalId":103164,"journal":{"name":"SICE '99. Proceedings of the 38th SICE Annual Conference. International Session Papers (IEEE Cat. No.99TH8456)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125141241","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 : 1999-07-28DOI: 10.1109/SICE.1999.788700
K. Kubo
New method of estimating instantaneous parameters from sine wave samples in differential domain is proposed and studied. Performances, errors caused by quantization and by sampling delay, and application to the time-frequency distribution are evaluated. Comparison with the ordinary techniques including Prony's method is made. The proposed method is not under constraints of the Gabor uncertainty principle, and the estimated results have ultimate instantaneousness.
{"title":"Instantaneous parameter estimation of sine wave by differential domain sampling","authors":"K. Kubo","doi":"10.1109/SICE.1999.788700","DOIUrl":"https://doi.org/10.1109/SICE.1999.788700","url":null,"abstract":"New method of estimating instantaneous parameters from sine wave samples in differential domain is proposed and studied. Performances, errors caused by quantization and by sampling delay, and application to the time-frequency distribution are evaluated. Comparison with the ordinary techniques including Prony's method is made. The proposed method is not under constraints of the Gabor uncertainty principle, and the estimated results have ultimate instantaneousness.","PeriodicalId":103164,"journal":{"name":"SICE '99. Proceedings of the 38th SICE Annual Conference. International Session Papers (IEEE Cat. No.99TH8456)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129456041","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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