Essays about: "Tommy Hjertberg"

Found 2 essays containing the words Tommy Hjertberg.

  1. 1. Fault energy implications of distributed converter interfaced generation : A case study of an underground mine grid

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

    Author : Tommy Hjertberg; [2021]
    Keywords : Dispersed PEID generators; short circuit energy; arc incident energy; protective relays; fault ride through; Distribuerad omformardriven generering; kortslutningsenergi; händelseenergi; reläskydd; felgenomkörning;

    Abstract : Adding Power Electronic Interfaced Devices (PEID) generation to grids is an increasing trend because of the concurrent development of better power electronic converters and a greater interest in a better utilisation of energy resources. Small and dispersed energy sources that would previously not be worth introducing into the grid is becoming more and more viable and other potential benefits such as better control of voltage levels and smoothing out load changes also spur this development. READ MORE

  3. 2. Finding an Optimal Trajectory for Autonomous Parking Under Uncertain Conditions

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

    Author : Vidar Greinsmark; Tommy Hjertberg; [2019]
    Keywords : RRT; autonomous parking; trajectory planning; optimisation; warm start; heuristics;

    Abstract : Path planning that considers accurate vehicle dynamics and obstacle avoidance is an important problem in the area of autonomous driving. This paper describes a method of implementing trajectory planning for autonomous parking in conditions where the starting point and the position of fixed obstacles are uncertain. READ MORE