Essays about: "ARMAX"

Showing result 1 - 5 of 8 essays containing the word ARMAX.

1. 1. Improved Furnace Control : System identification and model predicative control of Outokumpu’s reheating furnace

   University essay from Uppsala universitet/Signaler och system

   Author : Oscar Holmqvist; [2023]
   Keywords : Systeem Identification; Model Predictive Control;

   Abstract : This thesis investigates one option for improving the control of a reheating furnace used in heating steel slabs before hot rolling; an essential part of the steel manufacturing process. The furnace consumes a significant amount of energy, leading to high cost and high carbon dioxide emissions. READ MORE

3. 2. Using Dynamic Double Machine Learning for Guided District Heating Forecasting and Physical Parameter Extraction

   University essay from Lunds universitet/Matematisk statistik

   Author : Justinas Smertinas; [2022]
   Keywords : Double Machine Learning; Time Series; District Heating; ARMAX; Forecasting; Solar Gain; Diurnal Effects; Mathematics and Statistics;

   Abstract : This thesis’ main goals were to provide accurate forecasts and informative physical parameter estimates for energy use of the district heating in the Tingbjerg neighborhood, Copenhagen. Our work is aimed as a contribution for future work towards efficient on-demand energy production. READ MORE

4. 3. Winds of Change: How Swedish Wind Power Generation is Impacting Electricity Prices

   University essay from Handelshögskolan i Stockholm/Institutionen för finansiell ekonomi; Handelshögskolan i Stockholm/Institutionen för nationalekonomi

   Author : Karolina Sundell; Liv Nyström; [2022]
   Keywords : electricity spot price; price volatility; wind power; merit order theory; time series analysis;

   Abstract : This study provides fresh evidence on the impact of wind power generation on Swedish electricity prices. Hourly observations from the Nord Pool electricity market dated January 1, 2019 to December 31, 2021 are used to investigate the relationship between wind power generation and electricity spot price level and volatility. READ MORE

5. 4. Intraday Seasonality in EUR/SEK Returns

   University essay from Lunds universitet/Nationalekonomiska institutionen

   Author : Albin Johansson; Johan Kull Tinnerholm; [2020]
   Keywords : Seasonality; intraday returns; intraday volatility; foreign exchange; Flexible Fourier Form; Business and Economics;

   Abstract : In this thesis the intraday seasonality in the EUR/SEK spot returns are investigated after the returns have been filtered from intraday volatility. This is done with five-minute returns from year 2007 to 2019. The returns are filtered using the Flexible Fourier Form regression and then intraday seasonality is tested using an ARMAX-GARCH model. READ MORE

6. 5. Modelling and Control of Heat Distribution in a Powder Bed Fusion 3D Printer

   University essay from Linköpings universitet/Reglerteknik

   Author : Jonathan Hanses; Morten Eriksson; [2019]
   Keywords : Control; Modelling; 3D printer; PBF; Heat Distribution;

   Abstract : This thesis report describes how to improve the control of the temperature in a Powder Bed Fusion 3D printer. This is accomplished by first creating a model ofthe thermal system. To create a good model, both black-box and grey-box models of the system are estimated and compared. READ MORE