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作者： Reddy, G. Datatreya Bandyopadhyay, B. Tiwari, A.P. IEEE IDP in Systems and Control Engineering Indian Institute of Technology Bombay Powai Mumbai 400076 India Reactor Control Division Bhabha Atomic Research Centre Trombay Mumbai 400085 India

The paper presents a novel method to design a spatial control system based on multirate output feedback robust sliding mode control for a large Pressurized Heavy Water Reactor (PHWR). The non-linear model of PHWR including xenon and iodine dynamics is characterized by 70 state variables and 14 inputs and outputs each. Linear nodal model is obtained by linearizing the non-linear dynamic equations of the reactor about the full power operating point. A multirate output feedback based discrete sliding mode spatial controller is designed for the linearized model of the reactor. The proposed control method does not require state information of the system for feedback purposes and hence may be easier to implement. From simulation of the non-linear model of the reactor in representative transients, the proposed control scheme is found to be superior to other methods. © 2007 IEEE.

关键词： Sliding mode control

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Spatial control of a large PHWR by multirate output feedback based sliding mode control

Spatial control of a large PHWR by multirate output feedback...

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2006 IEEE International Conference on Industrial Technology, ICIT

作者： Datatreya Reddy, G. Bandyopadhyay, B. Tiwari, A.P. IDP in Systems and Control Engineering Indian Institute of Technology Bombay Powai Mumbai - 400076 India Reactor Control Division Bhabha Atomic Research Centre Trombay Mumbai - 400 085 India

ISBN: (纸本)1424407265

The paper presents a novel method to design a spatial control for a large PHWR based on multirate output feedback robust sliding mode control. The proposed method does not require state information of the system, for feedback purposes. The proposed control technique is easy to obtain and to implement. Simulation has been carried out using the nodal core model of PHWR to show the effectiveness of the proposed method.

关键词： Sliding mode control

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Discrete-time sliding mode control using multirate output feedback

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Lecture Notes in control and Information Sciences 2006年 334卷 351-371页

作者： Bandyopadhyay, B. Janardhanan, S. IDP in Systems and Control Engineering Indian Institute of Technology Bombay Mumbai India

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Multirate Output Feedback based Frequency Shaped Sliding Mode control

Multirate Output Feedback based Frequency Shaped Sliding Mod...

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IEEE International Conference on Industrial Technology (ICIT)

作者： A. J. Mehta B. Bandyopadhyay IDP in Systems and Control Engineering Indian Institute of Technology Mumbai India

This paper proposes a design of frequency shaped sliding mode controller using fast output sampling technique. A compensator is introduced in the sliding surface to attenuate the frequency component of the sliding mode dynamics so that the unmodelled dynamics are minimally excited. The fast output sampling technique is used to estimate the states of the system where the output is measured at a faster rate than the input updates. The control law performance is validated by the simulation.

关键词： Output feedback Sliding mode control Shape control Sampling methods Frequency dependence control systems Robust control State estimation Reduced order systems control system synthesis

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Relay-free Second Order Sliding Mode control

Relay-free Second Order Sliding Mode Control

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IEEE International Conference on Industrial Technology (ICIT)

作者： S. Janardhanan IDP in Systems and Control Engineering Indian Institute of Technology Bombay Mumbai India

The paper presents an approach for achieving second order sliding mode in continuous-time systems. The existing methods of second order sliding mode control are based on relay control in the derivative of the input. Such a control, though continuous, is not smooth in close proximity of the sliding surface. The proposed control algorithm achieves second order sliding mode by using a smooth control signal which avoids the use of a relay in the control.

关键词： Relays Sliding mode control control systems Switches State-space methods Actuators Frequency Terminology Closed loop systems Fatigue

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Robust multirate output feedback sliding mode controller for sensorless induction motor

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systems Science 2006年第1期32卷 57-70页

作者： Abera, Alemayehu Gebre-Egziabher Bandyopadhyay, B. Agarwal, Vivek IDP in Systems and Control Engineering IIT Bombay Mumbai-400 076 India Department of Electrical Engineering IIT Bombay Mumbai-400 076 India

In this paper, the design of sensorless induction motor speed controller using the concept of multirate output feedback discrete-time sliding mode control technique is proposed. The nonlinear model of the motor is linearized at its operating point and the multirate output feedback discrete time sliding mode control using output samples is designed and the same is applied to nonlinear model of the motor at its operating (equilibrium) point. This method docs not require the complete states of the system for feedback and is easily implementable.

关键词： Sliding mode control

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Spatial control of A Large PHWR by Multirate Output Feedback based Sliding Mode control

Spatial Control of A Large PHWR by Multirate Output Feedback...

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IEEE International Conference on Industrial Technology (ICIT)

作者： G. Datatreya Reddy B. Bandyopadhyay A. P. Tiwari IDP in Systems and Control Engineering Indian Institute of Technology Bombay Mumbai India Reactor Control Division Bhabha Atomic Research Centre Mumbai India

关键词： Sliding mode control Output feedback control systems Neutrons Robust control Inductors Xenon Power distribution Automatic control Radioactive decay

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Sensorless control of induction motor using fast output sampling technique

Sensorless control of induction motor using fast output samp...

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2005 IEEE International Conference on control Applications, CCA

作者： Abera, Alemayehu Gebre-Egziabher Bandyopadhyay, B. Agarwal, Vivek Janardhanan, S. IDP in Systems and Control Engg IIT Bombay Mumbai-400076 India Department of Electrical Engineering IIT Bombay Mumbai-400 076 India

ISBN: (纸本)0780393538

The paper presents the design of a new technique for induction motor control without using speed sensor. Here the discrete time control technique is used to design the controller for induction motor drive. The non-linear model of an induction motor is revisited here and linearized about an operating point to obtain a linear model for the same. A fast output sampling based controller is obtained by considering the stator current as output only. The non-linear model of the induction motor is simulated with the proposed controller. This method does not require the states of the system for feedback and is easily implementable. © 2005 IEEE.

关键词： Discrete time control systems

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Multirate output feedback sliding mode controller for sensorless induction motor

Multirate output feedback sliding mode controller for sensor...

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IEEE International Conference on Industrial Technology (ICIT)

作者： A.G.-E. Abera V. Agarwal B. Bandyopadhyay S. Janardhanan IDP in Systems and Control Engineering IIT Bombay Mumbai India

In this paper the design of sensorless induction motor speed controller without observer using concept of multirate output feedback discrete time sliding mode control technique is proposed. The nonlinear model of the motor model is linearised at its operating point and the fast output sampling discrete time sliding mode control using output samples is applied to non-linear plant of the motor at its operating (equilibrium) point. This method does not require the complete states of the system for feedback and is easily implementable.

关键词： Output feedback Sensorless control Sliding mode control Induction motors control systems Magnetic field measurement DC motors Machine vector control Tellurium Magnetic sensors

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Sensorless control of induction motor using fast output sampling technique

Sensorless control of induction motor using fast output samp...

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IEEE Conference on control Technology and Applications (CCTA)

作者： S. Janardhanan V. Agarwal B. Bandyopadhyay E. Abera A. Gebre Department of Electrical Engineering IIT Bombay Mumbai INDIA IDP in Systems and Control Engg. IIT Bombay Mumbai INDIA IDP in Syst. & Control Engg. IIT Bombay Mumbai

关键词： Sensorless control Induction motors Sampling methods Output feedback control systems Magnetic field measurement Machine vector control Magnetic sensors Sensor systems Induction motor drives

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