Pub Date : 2011-06-26DOI: 10.1109/ICMIC.2011.5973766
Chen Da-jin, Zhang Lin, Wang Tian, Shi Yong-qiang, Zhou Qi-li, Wu Xiao-kai
According to the current rapid development of wireless communication technology and various users of data services needs of business and rapid growth, more features need to be added and widely used in data enquire, also need to support multimedia services. The demands of Internet database access, video and other new business have great impact, considering the estimated demand for the spectrum is conservative. The estimated volume of business it is necessary to take into account the needs of the market, but also take into account technological developments. Technical design is discussed, spectrum sharing, modulation, speech coding rate, common signaling channel are achieved.
{"title":"Effect-based quality of database and heavy loaded communication","authors":"Chen Da-jin, Zhang Lin, Wang Tian, Shi Yong-qiang, Zhou Qi-li, Wu Xiao-kai","doi":"10.1109/ICMIC.2011.5973766","DOIUrl":"https://doi.org/10.1109/ICMIC.2011.5973766","url":null,"abstract":"According to the current rapid development of wireless communication technology and various users of data services needs of business and rapid growth, more features need to be added and widely used in data enquire, also need to support multimedia services. The demands of Internet database access, video and other new business have great impact, considering the estimated demand for the spectrum is conservative. The estimated volume of business it is necessary to take into account the needs of the market, but also take into account technological developments. Technical design is discussed, spectrum sharing, modulation, speech coding rate, common signaling channel are achieved.","PeriodicalId":210380,"journal":{"name":"Proceedings of 2011 International Conference on Modelling, Identification and Control","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124015951","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 : 2011-06-26DOI: 10.1109/ICMIC.2011.5973693
Chuanxiu Li, Dongya Zhao, T. Zou, Xianxia Zhang
A novel feedforward Smith predictor sliding mode control (FSPSMC) algorithm is developed for a class of first order system with integrator and time delay in this paper. Smith predictor is used to eliminate the time delay effects. Feedforward compensation control is used to overcome constant external disturbance and improve system control performance. An integral type switching gain sliding mode control (SMC) is used to guarantee system stability. A benchmark illustrative example is demonstrated to validate the effectiveness of the proposed approach.
{"title":"Feedforward Smith predictor sliding mode control algorithm for a class of first order system with integrator and time delay","authors":"Chuanxiu Li, Dongya Zhao, T. Zou, Xianxia Zhang","doi":"10.1109/ICMIC.2011.5973693","DOIUrl":"https://doi.org/10.1109/ICMIC.2011.5973693","url":null,"abstract":"A novel feedforward Smith predictor sliding mode control (FSPSMC) algorithm is developed for a class of first order system with integrator and time delay in this paper. Smith predictor is used to eliminate the time delay effects. Feedforward compensation control is used to overcome constant external disturbance and improve system control performance. An integral type switching gain sliding mode control (SMC) is used to guarantee system stability. A benchmark illustrative example is demonstrated to validate the effectiveness of the proposed approach.","PeriodicalId":210380,"journal":{"name":"Proceedings of 2011 International Conference on Modelling, Identification and Control","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124539874","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 : 2011-06-26DOI: 10.1109/ICMIC.2011.5973691
S. Saito, M. Deng, Changan Jiang, M. Minami
In this paper, a method of operator based nonlinear vibration control for flexible arm using a Shape Memory Alloy(SMA) actuator with hysteresis is considered. SMA actuators have several advantages such as large force to mass ratio, light weight, and clean and silent actuation. However, due to the hysteretic characteristic of SMA actuators, it is difficult to design a controller which is satisfied with desired performance. In order to eliminate the effect of the hysteresis, a nonlinear compensator is designed by using hysteresis model, which is described by play operator-based Prandtl-Ishlinskii(PI) hysteresis model. Based on the concept of Lipschiz operator and robust right coprime factorization condition, nonlinear vibration controllers are designed, robust stability of the closed-loop system with unconsidered vibration modes of the flexible arm as uncertainties is guaranteed. Further, a tracking operator is designed to ensure the output tracking performance of the considered system. Finally, numerical simulation results are presented to support the effectiveness of the proposed design method.
{"title":"Operator based design for vibration control of flexible arm using SMA actuator with hysteresis","authors":"S. Saito, M. Deng, Changan Jiang, M. Minami","doi":"10.1109/ICMIC.2011.5973691","DOIUrl":"https://doi.org/10.1109/ICMIC.2011.5973691","url":null,"abstract":"In this paper, a method of operator based nonlinear vibration control for flexible arm using a Shape Memory Alloy(SMA) actuator with hysteresis is considered. SMA actuators have several advantages such as large force to mass ratio, light weight, and clean and silent actuation. However, due to the hysteretic characteristic of SMA actuators, it is difficult to design a controller which is satisfied with desired performance. In order to eliminate the effect of the hysteresis, a nonlinear compensator is designed by using hysteresis model, which is described by play operator-based Prandtl-Ishlinskii(PI) hysteresis model. Based on the concept of Lipschiz operator and robust right coprime factorization condition, nonlinear vibration controllers are designed, robust stability of the closed-loop system with unconsidered vibration modes of the flexible arm as uncertainties is guaranteed. Further, a tracking operator is designed to ensure the output tracking performance of the considered system. Finally, numerical simulation results are presented to support the effectiveness of the proposed design method.","PeriodicalId":210380,"journal":{"name":"Proceedings of 2011 International Conference on Modelling, Identification and Control","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115563953","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 : 2011-06-26DOI: 10.1109/ICMIC.2011.5973699
J. Vasu, A. K. Deb, Siddhartha Mukhopadhyay, Kallappa Pattada
Mean Value Engine Models (MVEM) have been used extensively in automotive controls especially over the last 20 years. An MVEM was derived from a detailed Within-Cycle, Crank-Angle based Model (WCCM) that modelled the fluctuating cylinder combustion driven dynamics of a Spark Ignition engine. The model was designed for eventual use in a Fault Diagnoser built for an automobile engine system. While using this model in Extended Kalman Filter based estimators for fault residue generation, it was noted that the model suffered from biases that impaired the quality of estimation results. The biases were found to originate from the inherent simplifications associated with MVEMs. This led to an understanding of the limits of accuracy of a traditional MVEM model, the need for accurate bias modelling and the development of more robust estimators. Estimation results were found to improve after bias correction using Least-Square Support Vector Regressors.
{"title":"The need for bias modelling in MVEM based estimators","authors":"J. Vasu, A. K. Deb, Siddhartha Mukhopadhyay, Kallappa Pattada","doi":"10.1109/ICMIC.2011.5973699","DOIUrl":"https://doi.org/10.1109/ICMIC.2011.5973699","url":null,"abstract":"Mean Value Engine Models (MVEM) have been used extensively in automotive controls especially over the last 20 years. An MVEM was derived from a detailed Within-Cycle, Crank-Angle based Model (WCCM) that modelled the fluctuating cylinder combustion driven dynamics of a Spark Ignition engine. The model was designed for eventual use in a Fault Diagnoser built for an automobile engine system. While using this model in Extended Kalman Filter based estimators for fault residue generation, it was noted that the model suffered from biases that impaired the quality of estimation results. The biases were found to originate from the inherent simplifications associated with MVEMs. This led to an understanding of the limits of accuracy of a traditional MVEM model, the need for accurate bias modelling and the development of more robust estimators. Estimation results were found to improve after bias correction using Least-Square Support Vector Regressors.","PeriodicalId":210380,"journal":{"name":"Proceedings of 2011 International Conference on Modelling, Identification and Control","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114818580","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 : 2011-06-26DOI: 10.1109/ICMIC.2011.5973719
Lin Li, Tang Hong-wei, Tang Jie, Yin Jin-tian
This paper presents an adaptive backstepping speed controller which can be used in both the constant-torque region and the field-weakening region for an interior permanent magnet synchronous motor (IPMSM). By using the proposed method, the adjustable speed range can be extended to 4 times that of the base speed. In addition, the d-axis current is suitably adjusted to increase the output torque of the IPMSM. Experiment results show that the implemented system has satisfactory performance, including good transient responses, good load-disturbance-rejection responses, and good tracking ability.
{"title":"High performance control of IPMSM servo system based on dSPACE","authors":"Lin Li, Tang Hong-wei, Tang Jie, Yin Jin-tian","doi":"10.1109/ICMIC.2011.5973719","DOIUrl":"https://doi.org/10.1109/ICMIC.2011.5973719","url":null,"abstract":"This paper presents an adaptive backstepping speed controller which can be used in both the constant-torque region and the field-weakening region for an interior permanent magnet synchronous motor (IPMSM). By using the proposed method, the adjustable speed range can be extended to 4 times that of the base speed. In addition, the d-axis current is suitably adjusted to increase the output torque of the IPMSM. Experiment results show that the implemented system has satisfactory performance, including good transient responses, good load-disturbance-rejection responses, and good tracking ability.","PeriodicalId":210380,"journal":{"name":"Proceedings of 2011 International Conference on Modelling, Identification and Control","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114884747","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 : 2011-06-26DOI: 10.1109/ICMIC.2011.5973733
Ruiguang Yang, Mingwei Sun, Zengqiang Chen
A linear active disturbance rejection control scheme is presented for the uncertain first-order-plus-dead-time plant. The uncertainty of the system is characterized by Kharitonov theorem, and the gain-phase margin tester approach, combining with D-partition method, is utilized to determine specific performance boundaries. The analysis is conducted graphically, and the feasible regions are explicitly shown in the parameter plane. A computer simulation is provided to demonstrate the effectiveness of the proposed controller.
{"title":"Graphical design of linear active disturbance rejection controller for uncertain first-order-plus-dead-time plant","authors":"Ruiguang Yang, Mingwei Sun, Zengqiang Chen","doi":"10.1109/ICMIC.2011.5973733","DOIUrl":"https://doi.org/10.1109/ICMIC.2011.5973733","url":null,"abstract":"A linear active disturbance rejection control scheme is presented for the uncertain first-order-plus-dead-time plant. The uncertainty of the system is characterized by Kharitonov theorem, and the gain-phase margin tester approach, combining with D-partition method, is utilized to determine specific performance boundaries. The analysis is conducted graphically, and the feasible regions are explicitly shown in the parameter plane. A computer simulation is provided to demonstrate the effectiveness of the proposed controller.","PeriodicalId":210380,"journal":{"name":"Proceedings of 2011 International Conference on Modelling, Identification and Control","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129662678","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 : 2011-06-26DOI: 10.1109/ICMIC.2011.5973703
M. A. Abbasi, M. Shahid
This paper focuses on the linearization study of the non-linear dynamic models of Polymer Electrolyte Membrane Fuel Cells (PEMFC). Matlab and Control Systems Toolbox have been employed to study the model. The FC stack voltage is dependent upon the current drawn from the cell, the change in partial pressures and the change in the amount of inlet flow of water vapor, hydrogen and air. A sudden change in the state space model inputs is applied to the developed model and the system's step response is studied. The partial pressures of H2, O2 and H2O are selected as the state variables of the system.
本文对聚合物电解质膜燃料电池(PEMFC)的非线性动力学模型进行了线性化研究。利用Matlab和Control Systems Toolbox对该模型进行了研究。FC堆叠电压取决于从电池中提取的电流、分压的变化以及水蒸气、氢气和空气的入口流量的变化。将状态空间模型输入的突然变化应用于所建立的模型，研究了系统的阶跃响应。选取H2、O2和H2O的分压作为系统的状态变量。
{"title":"Linearized state space modeling of PEMFC for control applications","authors":"M. A. Abbasi, M. Shahid","doi":"10.1109/ICMIC.2011.5973703","DOIUrl":"https://doi.org/10.1109/ICMIC.2011.5973703","url":null,"abstract":"This paper focuses on the linearization study of the non-linear dynamic models of Polymer Electrolyte Membrane Fuel Cells (PEMFC). Matlab and Control Systems Toolbox have been employed to study the model. The FC stack voltage is dependent upon the current drawn from the cell, the change in partial pressures and the change in the amount of inlet flow of water vapor, hydrogen and air. A sudden change in the state space model inputs is applied to the developed model and the system's step response is studied. The partial pressures of H2, O2 and H2O are selected as the state variables of the system.","PeriodicalId":210380,"journal":{"name":"Proceedings of 2011 International Conference on Modelling, Identification and Control","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134442904","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 : 2011-06-26DOI: 10.1109/ICMIC.2011.5973739
Yuan Peng, Quan-min Zhu, Hassan NOURI
This paper presents a H2 controller design approach for power system stabilizers (PSS) based on LMI pole constraints analysis for damping low frequency oscillations. A single machine infinite bus system and a Heffron-Phillips synchronous generator mathematical model are selected in order to compare the effectiveness of the proposed controller with conventional PSS (CPSS). The H2 robust control guarantees the damping performance for different operating conditions and its robustness is better than that of CPSS.
{"title":"Robust H2 power system stabilizer design using LMI techniques","authors":"Yuan Peng, Quan-min Zhu, Hassan NOURI","doi":"10.1109/ICMIC.2011.5973739","DOIUrl":"https://doi.org/10.1109/ICMIC.2011.5973739","url":null,"abstract":"This paper presents a H2 controller design approach for power system stabilizers (PSS) based on LMI pole constraints analysis for damping low frequency oscillations. A single machine infinite bus system and a Heffron-Phillips synchronous generator mathematical model are selected in order to compare the effectiveness of the proposed controller with conventional PSS (CPSS). The H2 robust control guarantees the damping performance for different operating conditions and its robustness is better than that of CPSS.","PeriodicalId":210380,"journal":{"name":"Proceedings of 2011 International Conference on Modelling, Identification and Control","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134327567","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 : 2011-06-26DOI: 10.1109/ICMIC.2011.5973712
Lili Cui, Yanhong Luo, Huaguang Zhang
A novel adaptive critic design (ACD) based robust neural network (NN) controller is proposed for a class of continuous-time nonaffine nonlinear system in this paper. Although studies about ACD-based NN controller have been made on nonlinear systems, little is known about the more complicate nonaffine nonlinear systems. Because the nonlinear functions of nonaffine nonlinear systems are implicit functions with respect to the control, existing ACD methods can not been applied directly. Instead of approximating the nonaffine nonlinear function, we proposed that an action NN is employed to approximate the derived unknown uncertain term. Additionally, a robust term is developed to attenuate the NN reconstruction errors. Moreover, novel tuning laws for the weights of action NN and critic NN and the adaptive parameter are derived to guarantee the uniformly ultimate boundedness of all signals of the closed-loop system by Lyapunov method. By developing a novel Lyapunov function candidate and using adaptive bounding technique, no a prior knowledge of bounds of the time derivative of the control effectiveness term, the NN ideal weights of action NN and critic NN and the reconstruction errors is required. Simulation results demonstrate the effectiveness of the approach.
{"title":"Adaptive critic design based robust neural network control for a class of continuous-time nonaffine nonlinear system","authors":"Lili Cui, Yanhong Luo, Huaguang Zhang","doi":"10.1109/ICMIC.2011.5973712","DOIUrl":"https://doi.org/10.1109/ICMIC.2011.5973712","url":null,"abstract":"A novel adaptive critic design (ACD) based robust neural network (NN) controller is proposed for a class of continuous-time nonaffine nonlinear system in this paper. Although studies about ACD-based NN controller have been made on nonlinear systems, little is known about the more complicate nonaffine nonlinear systems. Because the nonlinear functions of nonaffine nonlinear systems are implicit functions with respect to the control, existing ACD methods can not been applied directly. Instead of approximating the nonaffine nonlinear function, we proposed that an action NN is employed to approximate the derived unknown uncertain term. Additionally, a robust term is developed to attenuate the NN reconstruction errors. Moreover, novel tuning laws for the weights of action NN and critic NN and the adaptive parameter are derived to guarantee the uniformly ultimate boundedness of all signals of the closed-loop system by Lyapunov method. By developing a novel Lyapunov function candidate and using adaptive bounding technique, no a prior knowledge of bounds of the time derivative of the control effectiveness term, the NN ideal weights of action NN and critic NN and the reconstruction errors is required. Simulation results demonstrate the effectiveness of the approach.","PeriodicalId":210380,"journal":{"name":"Proceedings of 2011 International Conference on Modelling, Identification and Control","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114986696","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 : 2011-06-26DOI: 10.1109/ICMIC.2011.5973717
Liang Sang, Jingqi Yan
In this paper, We have developed a rolling and non-rolling subtitle detection algorithm with temporal and spatial analysis for news video. This paper mainly includes rolling subtitle region detection, character segmentation for rolling subtitle, and non-rolling subtitle detection and location. While, most previous video text detection methods aimed at non-rolling subtitles, this paper proposed a detailed detection algorithm for both rolling and non-rolling subtitles in currently popular news video. The proposed algorithm makes good use of typical features of rolling subtitles, and is efficient for rolling character segmentation. For non-rolling subtitles, it utilizes edge features and connected component analysis of subtitle regions. In the experiments, we have tested the proposed algorithm with a series of news video and achieved good detection and segmentation results.
{"title":"Rolling and non-rolling subtitle detection with temporal and spatial analysis for news video","authors":"Liang Sang, Jingqi Yan","doi":"10.1109/ICMIC.2011.5973717","DOIUrl":"https://doi.org/10.1109/ICMIC.2011.5973717","url":null,"abstract":"In this paper, We have developed a rolling and non-rolling subtitle detection algorithm with temporal and spatial analysis for news video. This paper mainly includes rolling subtitle region detection, character segmentation for rolling subtitle, and non-rolling subtitle detection and location. While, most previous video text detection methods aimed at non-rolling subtitles, this paper proposed a detailed detection algorithm for both rolling and non-rolling subtitles in currently popular news video. The proposed algorithm makes good use of typical features of rolling subtitles, and is efficient for rolling character segmentation. For non-rolling subtitles, it utilizes edge features and connected component analysis of subtitle regions. In the experiments, we have tested the proposed algorithm with a series of news video and achieved good detection and segmentation results.","PeriodicalId":210380,"journal":{"name":"Proceedings of 2011 International Conference on Modelling, Identification and Control","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128294200","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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