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This paper presents a MATLAB-based application to teach the guidance, navigation, and control concepts of a quadrotor to undergraduate students, using a graphical user interface (GUI) and 3-D animations. The Simulink quadrotor model is controlled by a proportional integral derivative controller and a linear quadratic regulator controller. The GUI layout’s many components can be easily programmed to...
Improvement of electric vehicle handling stability and active safety depends strongly on real-time knowledge of important vehicle states in vehicle dynamics control systems, which is difficult to measure directly for both technical and economic reasons in fact. This paper presents a novel method to estimate critical vehicle states such as vehicle sideslip angle and lateral tire forces by utilizing...
The paper presents a dynamic d-q model of the three-phase induction motor in the stationary reference frame using MATLAB Simulink environment. An intuitive and easy to use model is presented that clearly elaborates the steps regarding revolving reference frames. It gives a complete access to the monitoring of parameters of induction motor for verification and control purposes. The second part of the...
A robust LPV observer has been designed to estimate the thermally de-rated torque of an hybrid electric vehicle (HEV) induction machine drive. The torque performance of conventional field-oriented control (FOC) deteriorates under the vast uncertainties in rotor and stator resistance due to the temperature variations during the HEV operation. Similar worsening of the response is expected due to the...
Thermal effects play an important role on the performance of electric motors for the applications in traction/propulsion systems. In these type of applications, there is a feedback loop as well as transients are involved. The torque speed characteristics of the electric motors are dependent upon the motor parameters such as armature/rotor resistance, stator resistance etc. The parameters are significantly...
Due to advancement in the area of networking, Networked Control systems (NCS) differ from classical control systems in that their control loops are closed around communication networks. Therefore the need for stability and performance guarantees arises. The purpose of this research is to shed light on the advancements and inherent problems in NCS. In order to characterize the performance of NCS under...
This paper describes the design of a fuzzy logic controller for ball and beam system based on linear matrix inequality (LMI) techniques. The uncertain ball and beam system is represented by a simplified Takagi-Sugeno (TS) fuzzy model. Parallel distributed compensation (PDC) technique is then used to design control gains for fuzzy regions. The convex fuzzy summation of these gains is found to stabilize...
The feedback (direct) field-oriented (vector) control is the most commonly adopted instantaneous speed/torque control method for the hybrid electric vehicle's drive system. The feedback (direct) field-oriented (vector) control of induction machines primarily depends upon precise flux estimation. However, an accurate estimation of flux is hard due to the deviations in the machine's electrical parameters...
In this paper, a new scheme is proposed to determine the harmonic components of a single-phase cycloconveter. The scheme computes the Fourier coefficients of the resultant positive and negative half cycle pairs of the output voltage waveform and adds them as one by the principle of superposition to determine the Fourier coefficients of the complete output voltage waveform. This scheme gives the straight...
The project replaces the existing solution employed in leather industry to measure the area of irregular pieces of leather. The designed machine uses camera to perform the task as compared to the photo sensors in the existing machine and as a result, the accuracy of the system has been increased. Also, the existing machine runs through a 486 PC with software written in Pascal and thus the maintenance...
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