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On a Comparative Study of Digital Redesign Methods

Publication date : Dec 1999
Paper File : digital_redesign.pdf

Authors

Abstract

This paper compares the performances achieved with the conventional digital redesign techniques with those obtained with the modern global digital redesign methods such as the plant input mapping methods and the optimal digital redesign approach. The study based on a benchmark control system reveals that the reduced-order plant input mapping method, and not the optimal approach, offers what practicing control engineers are really looking for: simple controllers having a superior behavior in face of finite word length effects and over a relatively large band of sampling frequencies.

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RT-LAB Professional_en

Effective Real-time Simulations of Event-Based Systems

Publication date : Nov 2000
Paper File : event_based_systems.pdf

Authors

Moussa Abdoune, Jean Bélanger, Alain Rabbath,

Abstract

This paper presents a set of novel tools that allow the efficient simulation, at fixed time steps, of event-based dynamic systems. The so-called RT-EVENTS library is an innovative toolbox that can be used with the SIMULINK graphical software and that solves the following two problems encountered in the simulations of event-based systems: (1) time consuming variable-step algorithms; and (2) inaccurate real-time simulations with fixed-step algorithms.

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RT-EVENTS_en
eMEGAsim PowerGrid Real-Time Digital Hardware in the Loop Simulator_en
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Effective Modeling & Simulation of Internal Combustion Engine Control Systems

Publication date : Dec 1999
Paper File : engine_control.pdf

Authors

K Butts, Herve Desira, Alain Rabbath,

Abstract

This paper proposes a novel modeling and simulation method as well as an integrated software/hardware solution to effectively model, from a time-domain point of view, and simulate internal combustion engine control systems, including the execution of batch of simulations.

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A Methodology for the Potential Improvement of Gas-Turbine Engine Digital Control Systems

Publication date : Dec 1999
Paper File : cca2000.pdf

Authors

N. Hori, Alain Rabbath,

Abstract

This paper describes technology for high-performance simulation. Challenging applications such as real-time hardware-in-the-loop and mega-simulation are made possible using parallel architectures based on COTS PC components. The system described is flexible enough to allow expansion and reconfiguration, and covers the entire design process from modeling to real-time simulation or control without the user ever having to write code.

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eFLYsim Aerospace HIL Testing_en
eFLYsim_en


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Alain Rabbath On a Comparative Study of Digital Redesign Methods Publication date : Dec 1999 Paper File : digital_redesign.pdf Authors Alain Rabbath, N. Hori, Abstract This paper compares the performances achieved with the conventional digital redesign techniques with those obtained with the modern global digital redesign methods such as the plant input mapping methods and the optimal digital redesign approach. The study based on a benchmark control system reveals that the reduced-order plant input mapping method, and not the optimal approach, offers what practicing control engineers are really looking for: simple controllers having a superior behavior in face of finite word length effects and over a relatively large band of sampling frequencies. Related Products RT-LAB Professional_en Effective Real-time Simulations of Event-Based Systems Publication date : Nov 2000 Paper File : event_based_systems.pdf Authors Moussa Abdoune, Jean Bélanger, Alain Rabbath, Abstract This paper presents a set of novel tools that allow the efficient simulation, at fixed time steps, of event-based dynamic systems. The so-called RT-EVENTS library is an innovative toolbox that can be used with the SIMULINK graphical software and that solves the following two problems encountered in the simulations of event-based systems: (1) time consuming variable-step algorithms; and (2) inaccurate real-time simulations with fixed-step algorithms. Related Products RT-EVENTS_en eMEGAsim PowerGrid Real-Time Digital Hardware in the Loop Simulator_en RT-LAB Professional_en Effective Modeling & Simulation of Internal Combustion Engine Control Systems Publication date : Dec 1999 Paper File : engine_control.pdf Authors K Butts, Herve Desira, Alain Rabbath, Abstract This paper proposes a novel modeling and simulation method as well as an integrated software/hardware solution to effectively model, from a time-domain point of view, and simulate internal combustion engine control systems, including the execution of batch of simulations. Related Products RT-LAB Professional_en A Methodology for the Potential Improvement of Gas-Turbine Engine Digital Control Systems Publication date : Dec 1999 Paper File : cca2000.pdf Authors N. Hori, Alain Rabbath, Abstract This paper describes technology for high-performance simulation. Challenging applications such as real-time hardware-in-the-loop and mega-simulation are made possible using parallel architectures based on COTS PC components. The system described is flexible enough to allow expansion and reconfiguration, and covers the entire design process from modeling to real-time simulation or control without the user ever having to write code. Related Products RT-LAB Professional_en eFLYsim Aerospace HIL Testing_en eFLYsim_en

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