Mathematical Modeling of a DC Motor With Encoder Feedback Using Real Time Simulation

Volume 1: 21st Computers and Information in Engineering Conference ◽

10.1115/detc2001/cie-21278 ◽

2001 ◽

Author(s):

Kourosh Rahnamai ◽

Brian Yanke

Keyword(s):

Mathematical Model ◽

Real Time ◽

Dc Motor ◽

Actual System ◽

Math Model ◽

Real Time Simulation ◽

System Parameters ◽

Time Simulation ◽

The Mathematical Model ◽

Permanent Magnet Dc Motor

Abstract Real-time simulation is used to model and perform parameter identification of a dc motor with encoder feedback. Using a fast DSP board, a permanent-magnet dc motor is controlled through a proportional position feedback, while running in parallel a real-time simulation of the mathematical model of the same system. Parameters of the mathematical model are adjusted in real time, such that the error between actual system and math model are minimized. This method allows a fast and efficient method for calculating and verifying math model of a dynamic system.

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A High-Fidelity Real-Time Simulation Code of Gas Turbine Dynamics for Control Applications

Volume 2: Turbo Expo 2002, Parts A and B ◽

10.1115/gt2002-30039 ◽

2002 ◽

Cited By ~ 6

Author(s):

S. M. Camporeale ◽

B. Fortunato ◽

M. Mastrovito

Keyword(s):

Mathematical Model ◽

Real Time ◽

Gas Turbine ◽

Dynamic Behavior ◽

Computational Time ◽

High Fidelity ◽

Simulation Code ◽

Real Time Simulation ◽

Time Simulation ◽

The Mathematical Model

A novel high-fidelity real-time simulation code based on a lumped, non-linear representation of gas turbine components is presented. The aim of the work is to develop a general-purpose simulation code useful for setting up and testing control equipments. The mathematical model and the numerical procedure are specially developed in order to efficiently solve the set of algebraic and ordinary differential equations that describe the dynamic behavior of the gas turbine engine. The paper presents the model and the adopted solver procedure. The code, developed in Matlab-Simulink using an object-oriented approach, is flexible and can be easily adapted to any kind of plant configuration. For high-fidelity purposes, the mathematical model takes into account the actual composition of the working gases and the variation of the specific heats with the temperature, including a stage-by-stage model of the air-cooled expansion. Simulation tests of the transients after load rejection have been carried out for a single-shaft heavy-duty gas turbine and a double-shaft industrial engine. Time plots of the main variables that describe the gas turbine dynamic behavior are shown and the results regarding the computational time per time step are discussed.

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Study on Real-Time Simulation on Hardware-in-the-Loop Platform for Single-Side Wheel Steering by Wire with dSPACE and Simulink

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.229-231.1935 ◽

2012 ◽

Vol 229-231 ◽

pp. 1935-1938

Author(s):

Qiang Li ◽

Zu Ming Sun ◽

He Ren

Keyword(s):

Real Time ◽

Dc Motor ◽

Steering System ◽

Hardware In The Loop ◽

Real Time Control ◽

Control Effect ◽

Real Time Simulation ◽

Time Control ◽

Time Simulation ◽

Single Side

Aiming at ordinary development DC motor existence shortcomings as complex algorithm and difficult real-time adjustment, the Hardware-In-the-Loop(HIL) platform is put up for single-side wheel steering system. The structure of software and hardware and important component is described in detail, and the real-time simulation model is developed using Simulink and dSPACE. With interest of better effects on real time control steering motor is achieved with ControlDesk by means of on-line tuning, monitoring, debugging and optimization of PID control parameters. The experimental results demonstrate that dSPACE system applied in DC motor has the advantages of good real-time control effect and effectively shorten controller development cycle and cost for the sake of establishing foundation on the proceeding research.

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Real-Time Implementation in DSPACE of Rotor Magnetic Field Control of Bearingless Induction Motor

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.703.335 ◽

2014 ◽

Vol 703 ◽

pp. 335-338

Author(s):

Qin Zhang ◽

Yu Xin Sun ◽

Huang Qiu Zhu ◽

Xian Xing Liu

Keyword(s):

Real Time ◽

Induction Motor ◽

Control Strategy ◽

System Development ◽

Decoupling Control ◽

Stable Operation ◽

Actual System ◽

Real Time Simulation ◽

Time Simulation ◽

Rotor Field Oriented Control

A bearingless induction motor is a strong coupled complex system, the decoupling control of torque and radial suspension force is the premise of the stable operation of the bearingless induction motor. In this paper, the principle of bearingless induction motor is expounded. The magnetic mathematical models of bearingless induction motor are created. The rotor field oriented control strategy is designed. The control strategy is validated with Matlab/simulink. Real-time simulation model based on dSPACE is given and the platform based on dSPACE is constructed. The results show that this method has good decoupling control performance. The actual system development and experiment process confirms that the dSPACE real-time simulation platform can shorten the development time and facilitate the development process, and save costs during the design and test period.

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