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The design of embedded control systems is rapidly change during the last decade. Guaranteeing the safety of these systems is a very challenging topic. It is possible to identify two main factors that are involved in the control of those systems: Hardware/Software (HW-SW) codesign and dynamic reconfiguration. Furthermore, the use of an embedded operating system associated with a functional module library...
The aim of this paper is to use and design a noninteger order controller, applied to vector controlled asynchronous machine, taking account of parameters variation. In several cases non-integer order regulator has outperformed integer regulator thanks to this advantages: it accommodates for their design an additional freedom degrees, the fractional order of the regulator introduce a non-linearity...
This paper deals with the induction machine's control inside a field oriented control (FOC) plan, a fractional order proportional integral (FOPI) controller is applied to ensure the speed control. PI and FOPI controllers have the similar structure but the fractional controller considers fractional integration orders in concluding the control action. Thanks to the fractional order integral we can get...
The design of embedded control systems is rapidly change during the last decade. Guaranteeing the safety of these systems is a very challenging topic. It is possible to identify two main factors that are involved in the control of those systems: Hardware/Software (HW-SW) codesign and dynamic reconfiguration. Furthermore, the use of an embedded operating system associated with a functional module library...
Quality of electricity, i.e. Power Quality is taking a major concern from researchers as well as utilities considering the immediate and long term impacts that it engenders especially on economy. Researchers, engineers, scientific community and even manufacturers have deeply thought about techniques and methodologies to monitor the Power Quality aspects and attributes. In this respect, we present...
This paper presents the possibility to use cheap credit-card sized computer like Beaglebone board for realization of real-time motor control-namely the DC motor speed control based on PI-controller. It describes the design and implementation of software to determine the speed of the motor and feedback control. The software design integrates three modules which were developed as user space applications...
Smart Grid is a revolutionary concept that has given rise to many research ideas and projects. Researches were conducted firstly, in generation and transmission, then distribution. Recently it is the consumption side and load matching that mostly matter the scientific community. Challenges due to the supply demand balance should be addressed especially when the consumer has turned into an active “prosumer”...
The aim of this work is to present the results of a comparative study of two different least squares (LS) approach for estimation of non-integer order models. The first one use a repeated fractional integration and modal approach and the second one is based on Grunwald approximation. Both methods are explained in details and identification algorithms are elaborate.
Radio-Frequency Identification (RFID) technology enables sensors to track objects of intelligent manufacturing systems. The amount data resulting from the primitive RFID reading poses some interesting challenges for the data management. A software solution based on a special protocol communication is proposed. The proposed solution allows cleaning data and errors identification when the communication...
This contribution has as its goal to identify of fractional order systems using least-squares (LS) and instrumental variable (IV) technique. System estimation can be considered as a necessary step in control theory. We introduce, in this paper, a new technique that permits us to estimate non-integer model. This method employs a linearization technique to find a linear equation, and then estimates...
Network on Chip is a set of hardware component that communicates together. The communication system must achieve maximum throughput while maintaining the system correctness, stability and eliminating starvation. The ideal solution among existing NoC architecture is the Switch Fabric. As it is known, the scheduler is the Switch Fabric brain. Moreover, the scheduling algorithm choice must be suitable...
In this work, a new estimation approach is proposed to improve the global convergence Output-Error (OE) identification method. The main disadvantage of the OE identification techniques is that they may converge to a secondary optimum. A good initialization converges to the global optimum. In this paper, Least squares (LS) method is selected as initialization step to OE algorithms. It's extended to...
In this work we aim to present a flexible software solution to control intelligent multi-agent manufacturing systems “FMCC”. Flexibility is necessary for such solutions since it gives possibility to adept them for different manufacturing systems. The use of OPC protocol has allowed developers to produce software solutions usable with different manufacturing systems by simple initial configuration...
With the rapid growth of industrial development and information technology, the electrical grid has recently witnessed deep transformations mainly in its infrastructure. It has moved from a centralized-control network depending on energy producers to a one that is distributed control with more consumers interaction. Therefore, the ancient grid has perceived a grid modernization making it a Smart grid...
starting from the “Industry 4.0” concept, this work aims to develop an event-condition-action (ECA) based structure to control intelligent manufacturing systems (IMS). RFID technology is used as a main component to gather data from shop floor. This data is used to control product routing among workstations and to control systems agents (robot's arms for example). The whole system has OPC based architecture.
This paper deals with identification of conventional and fractional park's model of induction machine. Output error identification method, based on Levenberg Marquardt algorithm is used to identify machine's parameters.
This paper deals with the problem of multiple robot control systems, as a main component of the control of flexible manufacturing systems problem. First step was the establishing of the inter-process communication between both server (a V+ operating system running controller) and client sides (a windows OS running computer). The inter-process communication allowed a full control of robots using a...
The present study deals with fractional modeling and identification of non-integer systems by least squares method (LS). Identification of fractional differentials equations (FDE) is investigated when estimating system parameters by a linear model with respect to parameters, as well as non-integer orders from temporal data (Hn1, n2 model). Estimated parameters by LS method will be used for initialization...
Control of flexible manufacturing systems requires the adaptation of the software components to the constraints imposed by the hardware components. As a key element of the control of flexible manufacturing systems, the control of an industrial robot is an essential first step towards the control of a whole cell. This step provides a wide field of investigation given the multitude of algorithmic combinations...
This paper presents a fractional Park model which is intended to characterize skin effect of squirrel cage induction machines. Usual modeling of skin effect is based on a ladder network; it is demonstrated that a fractional impedance is an alternative to this ladder network. The fractional Park’s model has been validated by output error identification. A methodology has been proposed to select the...
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