Essays about: "distribuerade energiresurser"

Found 5 essays containing the words distribuerade energiresurser.

  1. 1. Relay settings for frequency derivative protection against islanding : Optimizing RoCoF-Hysteresis and Delay for the Swedish power grid: An investigation of relevant values

    University essay from KTH/Hälsoinformatik och logistik

    Author : Ahmad Safari; [2023]
    Keywords : Islanding; unintentional islanding; distributed energy resources; main grid; RoCoF; hysteresis; delay; Ödrift; oavsiktlig ödrift; distribuerade energiresurser; stamnät; RoCoF; hysteres; fördröjning;

    Abstract : This report addresses the parameter settings for a protective relay designed to safeguard a 15 kW wind turbine located in Rimbo, Norrtälje municipality, against unintentional islanding. This type of situation arises when distributed energy resources continue to supply local loads, even if the main grid has been unintentionally disconnected. READ MORE

  3. 2. Access Point Selection and Clustering Methods with Minimal Switching for Green Cell-Free Massive MIMO Networks

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Qinglong He; [2022]
    Keywords : Cell-free massive MIMO; multi-objective optimization; deep reinforcement learning; AP switch ON OFF; energy efficiency; Cellfri massiv MIMO; multiobjektiv optimering; djup förstärkningsinlärning; AP switch ON OFF; energieffektivitet;

    Abstract : As a novel beyond fifth-generation (5G) concept, cell-free massive MIMO (multiple-input multiple-output) recently has become a promising physical-layer technology where an enormous number of distributed access points (APs), coordinated by a central processing unit (CPU), cooperate to coherently serve a large number of user equipments (UEs) in the same time/frequency resource. However, denser AP deployment in cell-free networks as well as an exponentially growing number of mobile UEs lead to higher power consumption. READ MORE

  4. 3. Model predictive control in heating and cooling networks : A case study of an urban district in Stockholm

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : ANDERS SAMUELSSON; DANIEL STEUER; [2021]
    Keywords : ;

    Abstract : This work presents a model predictive control system for heating and cooling supply planning in an urban heating and cooling network. The control approach addresses the need for strategic operation of distributed production technologies and thermal energy storage in increasingly complex heating and cooling networks. READ MORE

  5. 4. Assessment of optimization control strategies for energy management

    University essay from KTH/Optimeringslära och systemteori

    Author : Bahar Kasbi; [2020]
    Keywords : Optimization; linear programming; applied linear optimization; sensitivity analysis; energy management; demand side management DSM ; heat pump scheduling; setpoint; Optimering; tillämpad linjär optimering; linjär programmering; känslighetsanalys; energihantering; värmepumpsplanering; börvärde;

    Abstract : With the increasing demand for renewable energy sources, new systems are being developed to sustain future infrastructure, accommodating these new energy sources. One of the proposed solutions is to incorporate distributed energy resources to different households in order to provide local energy demands effectively. READ MORE

  6. 5. Distributed energy resources in Sweden : The challenges faced by market actors that are developing business models

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Niklas Ersson; [2019]
    Keywords : Business Models; Electricity Market; Energy Efficiency; Renewable Energy.; Affärsmodeller; Elmarknad; Energieffektivitet; Förnybar energi.;

    Abstract : The electricity sector has traditionally been constructed for large scale generation and distribution from the high-voltage to the low-voltage network. Transition is however underway; intermittent power generation has become less expensive and nuclear power plants are set to close down. READ MORE