Sökning: "linearisation"

Visar resultat 1 - 5 av 15 uppsatser innehållade ordet linearisation.

  1. 1. Neural Network Based Model Predictive Control of Turbulent Gas-Solid Corner Flow

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Signaler och system

    Författare :Simon Wredh; [2020]
    Nyckelord :computational fluid dynamics; machine learning; system identification; control theory; multi-phase flow; gas-solid flow; rans; lagrangian particle tracking; neural network; model predictive control; bio-aerosol;

    Sammanfattning : Over the past decades, attention has been brought to the importance of indoor air quality and the serious threat of bio-aerosol contamination towards human health. A novel idea to transport hazardous particles away from sensitive areas is to automatically control bio-aerosol concentrations, by utilising airflows from ventilation systems. LÄS MER

  3. 2. Model-Based Design, Development and Control of an Underwater Vehicle

    Master-uppsats, Linköpings universitet/Reglerteknik

    Författare :Adam Aili; Erik Ekelund; [2016]
    Nyckelord :Model; Design; Development; Control; Underwater; Underwater vehicle; BlueROV; ROV; Fossen; Modelling; Parameter Estimation; Prediction-error method; Extended Kalman filter; EKF; Feedback linearisation; Attitude controller; Angular velocity controller;

    Sammanfattning : With the rising popularity of ROVs and other UV solutions, more robust and high performance controllers have become a necessity. A model of the ROV or UV can be a valuable tool during control synthesis. The main objective of this thesis was to use a model in design and development of controllers for an ROV. LÄS MER

  4. 3. Estimation and prediction of wave input and system states based on local hydropressure and machinery response measurements

    Master-uppsats, KTH/Optimeringslära och systemteori

    Författare :Quentin Laurent; [2016]
    Nyckelord :;

    Sammanfattning : Waves represent a big untapped energy source and many are endeavouring to develop Wave Energy Converters (WEC) to harvest this resource. The goal of this thesis, carried out with the young technology company CorPower Ocean AB, is to enable a better control of the company’s WEC by providing control strategies with a prediction of the input force on the device, also called excitation force. LÄS MER

  5. 4. Distortion Cancellation in Time Interleaved ADCs

    Master-uppsats, Linköpings universitet/Elektroniska Kretsar och System

    Författare :Naga Thejus Sambasivan Mruthyunjaya; [2015]
    Nyckelord :Time-Interleaved ADC; Post correction; Blind calibration; Harmonics cancellation; Mismatch analysis; Linearisation;

    Sammanfattning : Time-Interleaved Analog to Digital Converters (TI ADC) consist of several individual sub-converters operating at a lower sampling rate, working in parallel, and in a circular loop. Thereby, they are increasing the sampling rate without compromising on the resolution during conversion, at high sampling rates. LÄS MER

  7. 5. Evaluation of Thermal Images for Detecting Leakages in District Heating Networks : A Case Study in Örebro City

    Kandidat-uppsats, KTH/Geoinformatik

    Författare :Natalie Ekroth; [2015]
    Nyckelord :Leak detection; thermal imaging; GIS;

    Sammanfattning : Leakages in the district heating networks is a current and growing problem. To find the leakages today many district heating companies uses manual techniques that are both time consuming and insecure, the methods can leave a lot of leakages in older pipes undiscovered for a very long time. LÄS MER