Essays about: "grid cells"

Showing result 1 - 5 of 89 essays containing the words grid cells.

1. 1. Extending energy attack mitigation to multiple IoT devices

   University essay from Uppsala universitet/Datorteknik

   Author : Patrik Johansson; [2023]
   Keywords : ;

   Abstract : A subset of IoT devices in use today rely on energy harvesting technologies for power. This means that rather than being connected to a larger energy grid or using batteries these devices source their energy from their environment, for example by using solar cells. READ MORE

3. 2. Harnessing Hydrogen and Batteries: Hybrid Energy Storage System for Versatile and Profitable Renewable Power Production

   University essay from Lunds universitet/Industriell elektroteknik och automation

   Author : Nora Jaredson Lilja; Hugo Björling; [2023]
   Keywords : Energy storage; Hydrogen energy storage; Battery storage; Hybrid storage; Wind power; Solar power; Combined wind and solar power production; Variable renewable energy sources; Power management; Energy storage operational strategy; Plannable renewable power production; Technology and Engineering;

   Abstract : This thesis explores the integration of hydrogen and battery energy storage systems as a means to enhance the management of wind and solar power in the pursuit of a greener grid. The objective of the study is to identify the potential benefits and challenges associated with hybrid energy storage systems (HESS) and their role in renewable energy integration. READ MORE

4. 3. Analysis of a high step-up gain DC-DC converter for fuel cell and battery application

   University essay from Uppsala universitet/Institutionen för elektroteknik

   Author : Kaj Törngren Sato; [2023]
   Keywords : Fuel cell; High step-up DC-DC converter; Boost converter; Coupled inductors; Coupling factor; CCM; DCM; Duty cycle;

   Abstract : In sustainable energy systems those using fuel cells, high step-up gain converters are widely used to increase the output voltage to levels that can be used by other converters, such as inverters for grid connection or powering other AC loads. In order to obtain a higher voltage gain, in comparison to a traditional boost converter, often different topologies techniques are involved. READ MORE

5. 4. Modelling and Simulation of Hydrogen Electrolyzers for Power System Applications

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

   Author : Javier Vinuelas Ferrando; [2023]
   Keywords : ;

   Abstract : The rapid increase in the share of intermittent renewables in the energy mix is exacerbating the complexity of the grid stability. To facilitate the inclusion of these green technologies and achieve the climate targets set by the EU, the generation and storage of hydrogen through electrolysis may be crucial. READ MORE

6. 5. Reconstruction of Fire Spread with a Markov Random Field Mixture Model

   University essay from Lunds universitet/Matematisk statistik

   Author : Marcus Gehrmann; [2023]
   Keywords : Forest fire; fire scars; spatial statistics; Markov random field; EM-algorithm; pseudo-likelihood; Mathematics and Statistics;

   Abstract : This thesis revolves around reconstructing fire sizes for historical fires in Jämtgaveln, Sweden based on data of fire scars in trees. We propose a Hidden Markov Model (HMM), where the domain is divided into quadratic grid cells of 250 $\times$ 250 m and with these grid cells we associate a binary Markov random field taking values 0 or 1 corresponding to no fire and fire respectively. READ MORE