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In the past, home automation was confronted with distance barriers in large homes and commercial buildings because the network was limited in how far the signal could travel. Large homes with longer wiring distances experienced weak signals and sporadic performance. But, now we have different RF modules available in the market which are capable of generating powerful signals which could travel to...
This paper mainly confers the development of tracking controller design for wheeled mobile robots with plant uncertainties and external disturbances. This paper proposes a unified and systematic procedure to design adaptive fuzzy tracking controllers for such system. At first an adaptive fuzzy tracking controller (AFTC) is designed for the nonholonomic constrained wheeled mobile robots without considering...
The paper presents the design and comparison of type-1 and interval type-2 fuzzy logic controllers for ball and beam system. Both the controllers utilize the beam angle as a scheduling variable for the stabilization and tracking of the ball position. The performance of the controllers is analyzed by simulating them in MATLAB environment for various initial conditions and in the presence of disturbance...
This paper deals with the hardware implementation of customized Proportional-Integral-Derivative (PID) architecture using FPGA for the speed control of permanent magnet DC motor. This architecture is embedded in FPGA using Verilog to implement speed control loop. Controller design, synthesis and analysis are completed by Xilinx ISE software and chipscope tool. Real time interface of this architecture...
Control systems, where the control loops are closed through a communication network, are called Networked Control System (NCS). Research on NCS has received increased attention in recent years due to the advancement of control, computation and communication technologies. NCS makes the design and implementation of control systems with reduced complexity due to simpler installation and easy maintenance...
All the closed loop control system requires the controller for improvement of transient response of the error signal. Though the tuning of PID controller in real time is bit difficult and moreover it lacks the disturbance rejection capability. In order to compensate these internal design problems, internal model control (IMC) based tuning approach has been developed. The analytical method based on...
In this paper, the behavior of a stiff shaft in a drive system consisting of two DC motors driving a common load is investigated. The expectation is to get both motor armature currents to match, indicating successful load sharing. The new idea of using Model Reference Adaptive Systems (MRAS) approach has been applied to design a control system such that two motors are identical in speed-torque characteristics...
This paper presents the design of a power management simulator of an electric vehicle with auxiliary fuel cell and wind energy sources. The power system of the electric vehicle consists of a 1-kW hydrogen fuel cell and a 2-kW LiFePO4 battery. The supply of the system power is managed by a power management unit. Normally, the LiFePO4 battery is the main power of the electric vehicle with light load...
This paper has designed a gold press polishing control system based on FPGA and feedback technology. This paper uses SOPC and NIOS soft core as the core of control system. At the same time, three level PID control scheme is used. The force feedback control is the main one, the, position and current feedback are au Also the paper designed the debugging software based on MFC for condition monitoring...
The capability of photovoltaic (PV) panel to generate energy approximately follows the intensity of the sunlight on the panel. A dual-axis solar programmable logical controller (PLC) based automatic tracking system and its supervisory and control system was designed and implemented in this paper. The proposed automatic tracking system controls elevation and orientation angles of solar panels such...
For the Steer-by-Wire system, it is necessary to develop advanced control systems and to design advanced architectures. In this paper, a new SBW control system with the consideration of the variable gear-ratio is presented. This SBW system includes two control loops, which are called upper control loop and lower control loop, respectively, to achieve bilateral control. The force feedback motor, which...
In this study, the establishment of a control platform for DC motor has been carried out with a personal digital assistant (PDA) using GPRS (General Packet Radio Service). The man-machine interface is achieved with embedded Visual Studio 2005 which includes the Pocket PC 2003, Smartphone 2003 and Windows CE 5.0 software applications. The protocol of application server was created by using basic principles...
In this study, a driver design has been implemented for Switched Reluctance Motor (SRM). With this driver, Switched Reluctance Motors can easily be driven using industrial controllers. In addition, with some simple changes on driver, Switched Reluctance Motors with different phase numbers can also be driven. S7–1200 PLC (Programmable Logic Controller) was preferred for the test of the driver. PID...
This paper details current state of the art with respect to digital motor commutation techniques illustrates the distinct advantages and disadvantages of each technique and goes on to propose a novel current control technique aimed at increasing efficiency at high speed part load conditions.
A purely analog controller has been developed for the speed control of a solar powered electric vehicle. An IGBT based cascaded boost converter is used as an interface between the PV array and the DC shunt motor. The designed controller automatically varies the duty cycle of the boost converter depending upon the desired speed of the motor. Speed control is achieved with proportional integral control...
This paper proposes a novel approach to controller implementations based on bitstream signal processing. A stability condition is derived analytically based on sliding mode analysis. Bit-stream techniques allows to the number of interface channels between the controller and other parts of the system to be reduced from multiple to single channel. Hence, significantly fewer hardware resources are consumed...
Based on the nonlinear mathematical model of series connected DC motor (SCDM) system dynamics, the analysis and design of two speed controller presented, which are non linear PID and NARMA L-2 controllers. The speed response of motor is observed by giving reference inputs as speed and load torque in terms of step variation. The response of the system using NARMA L-2 Neuro Controller and conventional...
DC motors have been used in the past as the workhorse of industrial systems until the introduction of the AC induction motors, about twenty years ago. Since then, the DC motors in the industrial plants have been replaced with more robust, less complex AC ones and the speed control was achieved by digital system controlled PWM inverters. But there was a time when the power electronics, digital control...
The present paper proposes a Delta Sigma (ΔΣ) modulator based control to control linear systems. This control method processes bit stream signals to control physical systems and offers various advantages compared to traditional methods of controller implementation, which uses multi-bit processing. To evaluate the performance of the bit-stream controller in real-life control applications, a digital...
This study aimed at planning, building and running an automatic solar distiller, whose function is to direct the mirror still in the position that there is a maximum brightness of the capture of the sunlight. The distiller was designed in the style of a cylindrical parabolic solar concentrator developed sheet steel, coated mirrors, modeled on a parabolic structure, with a focus along the copper tube...
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