The Experts below are selected from a list of 31884 Experts worldwide ranked by ideXlab platform
Silviu-iulian Niculescu - One of the best experts on this subject based on the ideXlab platform.
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Robust Stability Analysis of a Class of Smith Predictor-based Congestion Control Algorithms for Computer Networks
IFAC Proceedings Volumes, 2016Co-Authors: Luca De Cicco, Saverio Mascolo, Silviu-iulian NiculescuAbstract:Abstract Congestion control is a fundamental building block in packet switching networks such as the Internet due to the sharing of communication resources. It has been shown that the plant dynamics is essentially made of an integrator plus time delay and that a Proportional Controller plus a Smith predictor is a simple and effective Controller. It has been also shown that the today running TCP congestion control can be modelled using a Smith predictor plus a Proportional Controller. Due to the importance of this control structure in the field of data network congestion control, we analyze the robust stability of the closed loop system in the face of delay uncertainties that in data networks are present due to queuing. In particular, by applying a geometric approach, we derive a bound on the Proportional Controller gain which is necessary and sufficient to guarantee stability given a bound on the delay uncertainty.
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brief paper robust stability analysis of smith predictor based congestion control algorithms for computer networks
Automatica, 2011Co-Authors: Luca De Cicco, Saverio Mascolo, Silviu-iulian NiculescuAbstract:Congestion control is a fundamental building block in packet switching networks such as the Internet due to the fact that communication resources are shared. It has been shown that the plant dynamics is essentially made up of an integrator plus time delay and that a Proportional Controller plus a Smith predictor defines a simple and effective Controller. It has also been shown that the TCP congestion control can be modelled using a Smith predictor plus a Proportional Controller. Due to the importance of this control structure in the field of data network congestion control, we analyse the robust stability of the closed-loop system in the face of delay uncertainties that are present in data networks due to queuing. In particular, by applying a geometric approach, we derive a bound on the Proportional Controller gain which is necessary and sufficient to guarantee the closed-loop stability for a given bound on the delay uncertainty.
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Stability analysis of networked control systems based on a switched control
2009Co-Authors: Arben Cela, Silviu-iulian Niculescu, Abdellatif ReamaAbstract:Congestion control is a fundamental building block in packet switching networks such as the Internet due to the sharing of communication resources. It has been shown that the plant dynamics is essentially made of an integrator plus time delay and that a Proportional Controller plus a Smith predictor is a simple and effective Controller. It has been also shown that the today running TCP congestion control can be modelled using a Smith predictor plus a Proportional Controller. Due to the importance of this control structure in the field of data network congestion control, we analyze the robust stability of the closed loop system in the face of delay uncertainties that in data networks are present due to queuing. In particular, by applying a geometric approach, we derive a bound on the Proportional Controller gain which is necessary and sufficient to guarantee stability given a bound on the delay uncertainty.
Seungho Song - One of the best experts on this subject based on the ideXlab platform.
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maximum output power tracking control in variable speed wind turbine systems considering rotor inertial power
IEEE Transactions on Industrial Electronics, 2013Co-Authors: Seungho SongAbstract:This paper proposes a new maximum power point tracking (MPPT) algorithm for variable-speed wind turbine systems, which takes advantage of the rotor inertia power. In this method, a Proportional Controller is added to the power control to effectively reduce the moment of inertia of the wind turbines, which can improve the fast performance of the MPPT control. The PSIM simulation and experimental results for a doubly-fed induction generator wind turbine system have proved the validity of the proposed algorithm.
Philippe Lutz - One of the best experts on this subject based on the ideXlab platform.
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ICRA - High-Stroke Motion Modelling and Voltage/Frequency Proportional Control of a Stick-Slip Microsystem
Proceedings 2007 IEEE International Conference on Robotics and Automation, 2007Co-Authors: Micky Rakotondrabe, Yassine Haddab, Philippe LutzAbstract:A new control type for stick-slip microsystems is proposed in this paper: the voltage/frequency (U/f) Proportional control. It gives a best resolution relatively to the classical control algorithm. It is also an englobalization of three classical Controllers: the sign Controller, the classical Proportional Controller and the frequency Proportional Controller. A high stroke model of a stick-slip microsystem is first given. Then, we theoretically analyze the performances of the closed loop process with the U/f Controller. Finally, we give some experimental results obtained with different values of the Proportional gains.
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High-Stroke motion modelling and voltage/frequency Proportional control of a stick-slip microsystem.
2007Co-Authors: Micky Rakotondrabe, Yassine Haddab, Philippe LutzAbstract:A new control type for stick-slip microsystems is proposed in this paper : the voltage/frequency (U/f) Proportional control. It gives a best resolution relatively to the classical control algorithm. It is also an englobalization of three classical Controllers : the sign Controller, the classical Proportional Controller and the frequency Proportional Controller. A high stroke model of a stick-slip microsystem is first given. Then, we theoretically analyse the performances of the closed loop process with the U/f Controller. Finally, we give some experimental results obtained with different values of the Proportional gains.
Luca De Cicco - One of the best experts on this subject based on the ideXlab platform.
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Robust Stability Analysis of a Class of Smith Predictor-based Congestion Control Algorithms for Computer Networks
IFAC Proceedings Volumes, 2016Co-Authors: Luca De Cicco, Saverio Mascolo, Silviu-iulian NiculescuAbstract:Abstract Congestion control is a fundamental building block in packet switching networks such as the Internet due to the sharing of communication resources. It has been shown that the plant dynamics is essentially made of an integrator plus time delay and that a Proportional Controller plus a Smith predictor is a simple and effective Controller. It has been also shown that the today running TCP congestion control can be modelled using a Smith predictor plus a Proportional Controller. Due to the importance of this control structure in the field of data network congestion control, we analyze the robust stability of the closed loop system in the face of delay uncertainties that in data networks are present due to queuing. In particular, by applying a geometric approach, we derive a bound on the Proportional Controller gain which is necessary and sufficient to guarantee stability given a bound on the delay uncertainty.
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brief paper robust stability analysis of smith predictor based congestion control algorithms for computer networks
Automatica, 2011Co-Authors: Luca De Cicco, Saverio Mascolo, Silviu-iulian NiculescuAbstract:Congestion control is a fundamental building block in packet switching networks such as the Internet due to the fact that communication resources are shared. It has been shown that the plant dynamics is essentially made up of an integrator plus time delay and that a Proportional Controller plus a Smith predictor defines a simple and effective Controller. It has also been shown that the TCP congestion control can be modelled using a Smith predictor plus a Proportional Controller. Due to the importance of this control structure in the field of data network congestion control, we analyse the robust stability of the closed-loop system in the face of delay uncertainties that are present in data networks due to queuing. In particular, by applying a geometric approach, we derive a bound on the Proportional Controller gain which is necessary and sufficient to guarantee the closed-loop stability for a given bound on the delay uncertainty.
Micky Rakotondrabe - One of the best experts on this subject based on the ideXlab platform.
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ICRA - High-Stroke Motion Modelling and Voltage/Frequency Proportional Control of a Stick-Slip Microsystem
Proceedings 2007 IEEE International Conference on Robotics and Automation, 2007Co-Authors: Micky Rakotondrabe, Yassine Haddab, Philippe LutzAbstract:A new control type for stick-slip microsystems is proposed in this paper: the voltage/frequency (U/f) Proportional control. It gives a best resolution relatively to the classical control algorithm. It is also an englobalization of three classical Controllers: the sign Controller, the classical Proportional Controller and the frequency Proportional Controller. A high stroke model of a stick-slip microsystem is first given. Then, we theoretically analyze the performances of the closed loop process with the U/f Controller. Finally, we give some experimental results obtained with different values of the Proportional gains.
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High-Stroke motion modelling and voltage/frequency Proportional control of a stick-slip microsystem.
2007Co-Authors: Micky Rakotondrabe, Yassine Haddab, Philippe LutzAbstract:A new control type for stick-slip microsystems is proposed in this paper : the voltage/frequency (U/f) Proportional control. It gives a best resolution relatively to the classical control algorithm. It is also an englobalization of three classical Controllers : the sign Controller, the classical Proportional Controller and the frequency Proportional Controller. A high stroke model of a stick-slip microsystem is first given. Then, we theoretically analyse the performances of the closed loop process with the U/f Controller. Finally, we give some experimental results obtained with different values of the Proportional gains.
