Sökning: "dummy load"

Visar resultat 1 - 5 av 10 uppsatser innehållade orden dummy load.

  1. 1. Forecasting Volatility of Electricity Intraday Log Returns with Generalized Autoregressive Score Models

    Master-uppsats, Göteborgs universitet/Graduate School

    Författare :Gustav Veres; Philip Ahlfridh; [2023-06-29]
    Nyckelord :;

    Sammanfattning : We forecast volatility of electricity intraday log returns with Generalized Autoregressive Score (GAS) models. We extend our GAS models with variables representing the difference between the public’s expectation of weather and energy load and the actual outcome using a restricted ARMA(4,4) model. LÄS MER

  3. 2. Optimizing Control Algorithm for Indirect Liquid ThermalManagement of Batteries : A Study Executed at Northvolt

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Mantas Petrosius; [2021]
    Nyckelord :;

    Sammanfattning : The vast expansion of intermittent sustainable energy generation has favoured a gradual adoption of lithium-ion batteries in various industrial and automotive applications. Despite its many inherent merits, this storage technology is very vulnerable to temperature variations: the performance and lifespan of LIBs are substantially influenced by their load cycles, thermal behaviours, and operating temperature range. LÄS MER

  4. 3. Mätning av högfrekventa övertonervid laddning av elbil

    M1-uppsats, Uppsala universitet/Institutionen för elektroteknik

    Författare :Christoffer Wildner; [2020]
    Nyckelord :;

    Sammanfattning : With more Electric vehicles (EV) on the street, it will lead to an impact of the electric grid. In this work, the charging process of an EV the high-frequency harmonics will be analysed. LÄS MER

  5. 4. Evaluation of occupant kinematics in crash using the PIPER model : in frontal and oblique crash simulations

    Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Maria Daouacher; [2019]
    Nyckelord :PIPER; Human Body Model; Child occupants; Anthropometrics;

    Sammanfattning :   A child dies in road traffic crashes every fourth minute. Totally were 186 300 children under the age of 18 killed in vehicle accidents in 2012, even more were severely injured [1]. LÄS MER

  7. 5. Anpassning av småskaliga vattenkraftverk för ö-drift av lokalt elnät

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Elektricitetslära

    Författare :Jonatan Fredriksson; [2019]
    Nyckelord :small hydropower; hydropower; Kaplan; turbine; transient; disturbance; resilliance; power grid; island; islanding; adapting; island mode; frequency control; dummy load; Kaplan; Kaplanturbin; elnät; ö-nät; ö-drift; vattenkraft; småskaliga vattenkraftverk; transient störningstålighet; indexprov; kombineringsprov; lokalt elnät;

    Sammanfattning : This master thesis examines technical requirements for small hydro power plants (HPP) to operate proximate parts of the power grid in island mode. The work examines how small hydropower can be modified and complemented with additional technologies to achieve sufficient frequency control capabilities. LÄS MER