Real-time control of aircraft take-off in windshear. Part I: Aircraft model and control schemes

2017 ◽  
Author(s):  
Kirill Martynov ◽  
Nikolai Botkin ◽  
Varvara Turova ◽  
Johannes Diepolder
Keyword(s):  
Real Time ◽  
Real Time Control ◽  
Aircraft Model ◽  
Time Control ◽  
Control Schemes ◽  
And Control

Integrative Modeling Platform for Design and Control of an Adaptive Wind Turbine Blade

2018 ◽  
Author(s):  
Hamid Khakpour Nejadkhaki ◽  
John F. Hall ◽  
Minghui Zheng ◽  
Teng Wu
Keyword(s):  
Simulation Model ◽  
Wind Turbine ◽  
Real Time ◽  
Turbine Blade ◽  
Design Tool ◽  
Real Time Control ◽  
Time Control ◽  
Partial Load ◽  
And Control

A platform for the engineering design, performance, and control of an adaptive wind turbine blade is presented. This environment includes a simulation model, integrative design tool, and control framework. The authors are currently developing a novel blade with an adaptive twist angle distribution (TAD). The TAD influences the aerodynamic loads and thus, system dynamics. The modeling platform facilitates the use of an integrative design tool that establishes the TAD in relation to wind speed. The outcome of this design enables the transformation of the TAD during operation. Still, a robust control method is required to realize the benefits of the adaptive TAD. Moreover, simulation of the TAD is computationally expensive. It also requires a unique approach for both partial and full-load operation. A framework is currently being developed to relate the TAD to the wind turbine and its components. Understanding the relationship between the TAD and the dynamic system is crucial in the establishment of real-time control. This capability is necessary to improve wind capture and reduce system loads. In the current state of development, the platform is capable of maximizing wind capture during partial-load operation. However, the control tasks related to Region 3 and load mitigation are more complex. Our framework will require high-fidelity modeling and reduced-order models that support real-time control. The paper outlines the components of this framework that is being developed. The proposed platform will facilitate expansion and the use of these required modeling techniques. A case study of a 20 kW system is presented based upon the partial-load operation. The study demonstrates how the platform is used to design and control the blade. A low-dimensional aerodynamic model characterizes the blade performance. This interacts with the simulation model to predict the power production. The design tool establishes actuator locations and stiffness properties required for the blade shape to achieve a range of TAD configurations. A supervisory control model is implemented and used to demonstrate how the simulation model blade performs in the case study.

Design and Development of a Multi-Module Deployable Manipulator

1999 ◽  
Author(s):  
Kenneth Wong ◽  
Vinod J. Modi ◽  
Clarence W. de Silva ◽  
Arun K. Misra
Keyword(s):  
Real Time ◽  
Experimental Investigations ◽  
Computationally Efficient ◽  
Real Time Control ◽  
Design And Development ◽  
Time Control ◽  
Dynamics And Control ◽  
Manipulator Design ◽  
A Chain ◽  
And Control

Abstract This paper presents the design and development of a Multi-module Deployable Manipulator System (MDMS) as well as a dynamical formulation for it. The system is designed for experimental investigations aimed at dynamics and control of this variable geometry manipulator by implementing different control algorithms to regulate its performance. The manipulator operates in a horizontal plane and is unique in that it comprises of four modules, each of which has one revolute joint and one prismatic joint, connected in a chain topology. Each module has a slewing link of approximately 20cm length and is capable of extending by 15cm. The manipulator design involves the selection and sizing of actuators, the design of mounting and connecting components, and the selection of hardware as well as software for real-time control. The dynamical model is formulated using an O(N) algorithm, based on the Lagrangian approach and velocity transformations. The O(N) character is computationally efficient permitting real-time control of the system.

Real time control for reduced aeration and chemical consumption: a full scale study

2010 ◽  
Vol 61 (9) ◽  
pp. 2169-2175 ◽  
Author(s):  
A. Thornton ◽  
N. Sunner ◽  
M. Haeck
Keyword(s):  
Activated Sludge ◽  
Real Time ◽  
Full Scale ◽  
Real Time Control ◽  
Effluent Quality ◽  
Time Control ◽  
Whole Plant ◽  
Running Cost ◽  
The Uk ◽  
And Control

The use of the activated sludge process (ASP) for the nitrification/denitrification of wastewaters is commonplace throughout the UK and many other parts of the industrial world. Associated with this process are significant costs arising from aeration requirements and for selected sites, the need to provide an external carbon source. These costs can constitute up to of 50% of the total running cost of the whole plant and as such, any effort to reduce them could realise significant benefits. This paper investigates the use of real time control (RTC) using online sensors and control algorithms to optimise the operation of the ASP, leading to greater efficiency and sustainability. Trials were undertaken at full scale to assess the benefit of such a system at a 250,000 population equivalent (PE) works on the south coast of the UK, using Activated sludge model No.1 (ASM 1) as a basis for the control system. Initial results indicate that it is possible to significantly reduce both aeration and chemical consumption costs whilst still delivering the required effluent quality. Over the trial period the aeration requirements were consistently reduced by 20% whereas, a reduction in methanol consumption of in excess of 50% was observed.

scholarly journals PC Based Real Time Control of DC Motor

2018 ◽  
Vol 4 (2) ◽  
pp. 66
Author(s):  
Mohamad Fauzi Radsanjani ◽  
Dwi Astharini
Keyword(s):  
Real Time ◽  
Real Data ◽  
Dc Motor ◽  
Real Time Control ◽  
Matlab Simulink ◽  
Final Project ◽  
Time Control ◽  
Speed Sensor ◽  
And Control ◽  
Monitor And Control

<p><em>Abstract</em><strong> – This final project report present a Pc based real time control of DC motor. Real time control systems can be defined as a technology which is related to mechanical application, electronic, and computer-based systems. In general, the equipment that is often used for controlling speed system is Arduino Mega 2560, DC motor, motor driver IC L298N, speed sensor IC LM393, and voltage sensor. Software in the system I used Matlab Simulink to monitor and control the speed of dc motor will show real data, they are displayed in signal RPM and signal Voltage, Matlab Simulink is used program to let the operator operates the system well. This monitor and control system can improve the effectiveness and efficiency in various industrial fields.</strong></p><p><strong> </strong></p><p><strong><em>Keyword –</em></strong><strong> </strong><em>PC, Real Time, Control, DC Motor</em></p><p><em> </em></p>

Teaching Systems and Control Using Matlab

1992 ◽  
Vol 29 (3) ◽  
pp. 235-242 ◽  
Author(s):  
J. L. Rodgerson ◽  
J. H. Anderson
Keyword(s):  
Numerical Calculation ◽  
Real Time ◽  
Software Package ◽  
Laboratory Work ◽  
Real Time Control ◽  
Laboratory Environment ◽  
Time Control ◽  
Systems And Control ◽  
The University ◽  
And Control

Teaching systems and control using MATLAB The paper describes how the software package MATLAB has been used to remove the burden of numerical calculation from tutorial and laboratory work in the Systems and Control courses at the University of Natal. The package has been enhanced through the addition of two simple commands to enable it to be used to implement real-time control in a laboratory environment.

Intelligent Navigation of Assembly Stations Based on Real-Time Manufacturing Information

2013 ◽  
Vol 432 ◽  
pp. 442-446
Author(s):  
Teng Yang ◽  
Ying Feng Zhang ◽  
Jun Qiang Wang
Keyword(s):  
Real Time ◽  
Rfid Technology ◽  
Source Information ◽  
Real Time Control ◽  
Time Data ◽  
The Real ◽  
Time Control ◽  
Manufacturing Information ◽  
And Control ◽  
Real Time Optimization

In order to improve the real-time control and optimization of assembly process, this article takes the basic execution unitassembly station as the study subject. Based on real-time manufacturing information, the concept of the intelligent navigation of assembly activities is put forward. Through the application of RFID technology to capture the multi-source information, three kinds of navigation services, namely real-time assembly operating guidance service, collaborative manufacturing service among assembly stations and real-time optimization service of task queue, are designed to implement optimal navigation. The presented concept and services will facilitate the real-time data driven process monitor and control between the assembly line and assembly station.

PCCHUA — A LABORATORY SETUP FOR REAL-TIME CONTROL AND SYNCHRONIZATION OF CHAOTIC OSCILLATIONS

2005 ◽  
Vol 15 (08) ◽  
pp. 2349-2360 ◽  
Author(s):  
LEONARDO A. B. TÔRRES ◽  
LUIS ANTONIO AGUIRRE
Keyword(s):  
Real Time ◽  
Low Cost ◽  
Real Time Control ◽  
Time Restrictions ◽  
Laboratory Setup ◽  
Time Control ◽  
Variable Control ◽  
Control Schemes ◽  
Control And Synchronization ◽  
Chua Oscillator

This paper describes a laboratory setup suitable for implementing low cost real-time solutions in the fields of control, synchronization and information transmission based on chaotic oscillators. The setup has the following features: (a) it is composed of a Chua oscillator furnished with three actuators thus permitting mono- and multi-variable control; (b) the actuators can be driven by the analog outputs of a standard I/O-board; in order to be able to actuate fast enough (c) the I/O-board is driven by a real time program written for Linux and (d) an inductorless implementation of Chua's circuit permits to slow down the original dynamics to just a few hertz. This enables implementing sophisticated control schemes without severe time restrictions. The paper concludes with a sample of experiments performed using the new setup.

The Optimal Locus Approach With Machining Applications

1989 ◽  
Vol 111 (2) ◽  
pp. 260-267 ◽  
Author(s):  
Yoram Koren
Keyword(s):  
Real Time ◽  
Real Time Control ◽  
Machining Processes ◽  
Mathematical Basis ◽  
Control Loops ◽  
Time Control ◽  
Multiple Variables ◽  
Optimization Methodology ◽  
And Control ◽  
Grinding System

An optimal locus concept is introduced as the basis for an optimization methodology for real-time control subject to time-varying constraints. The optimal locus in the control plane contains all possible optimum points, and the actual point is found at the intersection of the optimal locus with the most limiting constraint. The mathematical basis of the approach is a given set of equations which is less than the number of unknowns, and the addition of real-time measurements to compensate for the missing information. The control system generates the optimal parameters in real time, and uses them as references to the control loops. The optimization methodology and control architecture are structures in a generalized way for application to processes having multiple variables and subject to several constraints. The proposed controller architecture can effectively control many machining processes. The optimal locus approach was applied to a grinding system and the experimental results verify the proposed theory.

scholarly journals Automation and real-time control of urban wastewater systems: a review of the move towards sustainability

2020 ◽  
Vol 69 (8) ◽  
pp. 751-768 ◽  
Author(s):  
Biniam B. Ashagre ◽  
Guangtao Fu ◽  
David Butler
Keyword(s):  
Real Time ◽  
Future Research ◽  
Urban Wastewater ◽  
Real Time Control ◽  
Catchment Scale ◽  
Time Control ◽  
The Social ◽  
Automation And Control ◽  
Wastewater Systems ◽  
And Control

Abstract Automation and real-time control have long been used in urban wastewater systems. However, there is a critical need to review how real-time control contributes to sustainable water management. This review provides a systematic review of the role of real-time control towards creating a sustainable wastewater system. This review identifies the social, economic and environmental pillars of sustainability that can be achieved using automation and control systems, considering individual systems and different scales of integration. Results obtained from a systematic literature review show that previous research on automation and control related to sustainability in the water sector focuses on addressing economic issues (mainly operational cost reduction) and improving the quality of the water environment, while the social pillar of sustainability is not addressed to a significant degree. Integrated control is identified as a promising approach to address the three pillars of sustainability. Future research on automaton and real-time control in the water and wastewater system needs to explicitly demonstrate the contribution of control strategies towards the attributes of sustainability. To this end, regulatory bodies should focus on creating an overarching sustainability framework with indicators of sustainability clearly defined. Further, addressing three pillars of sustainability requires an integrated approach at a catchment scale where upstream and downstream processes are considered.

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