Sökning: "Thruster"

Visar resultat 1 - 5 av 27 uppsatser innehållade ordet Thruster.

  1. 1. PPS5000 Thruster Emulator Architecture Development & Hardware Design

    Master-uppsats, Luleå tekniska universitet/Rymdteknik

    Författare :Robert Persson; [2019]
    Nyckelord :Electric Propulsion; Spacecraft; Ground Support Equipment; OHB Sweden; Emulator; Thruster; Elektrisk Framdrivning; Rymdfarkost; Markutrustning; Testutrustning;

    Sammanfattning : This Master's Thesis handles prestudy work and early hardware development that resulted in architectural definitions and prototype hardware of electronic ground support equipment. This equipment is destined to emulate the electric power consumption of the PPS5000 Hall Effect Thruster (HET), for use in satellite end-to-end tests of the all-electric Geostationary Satellite Electra, developed at OHB Sweden AB. LÄS MER

  2. 2. EM emissions test platform implementationfor satellite electric propulsion systems andelectronic subsystems

    Master-uppsats, Luleå tekniska universitet/Rymdteknik

    Författare :Siiri Talvistu; [2019]
    Nyckelord :Electromagnetic compatibility; electromagnetic emissions; compliance; ion thruster;

    Sammanfattning : Modern gridded ion thrusters for CubeSats operate by generating high power and canpose challenging problems with Electromagnetic Interference (EMI). In order to verifycompatibility with neighbouring equipment, strict standards such as the militarystandard MIL-STD-461G, are required to be followed to achieve ElectromagneticCompatibility (EMC). LÄS MER

  3. 3. Nonlinear MPC for Motion Control and Thruster Allocation of Ships

    Master-uppsats, Linköpings universitet/Reglerteknik

    Författare :Alexander Bärlund; [2019]
    Nyckelord :MPC; nonlinear MPC; model predictive control; thruster allocation; thrust allocation; motion control; motion control system; ship; dynamic positioning; azimuth; azipod;

    Sammanfattning : Critical automated maneuvers for ships typically require a redundant set of thrusters. The motion control system hierarchy is commonly separated into several layers using a high-level motion controller and a thruster allocation (TA) algorithm. LÄS MER

  4. 4. Design of a FEEP Thruster for Micro-/Nano-Satellites

    Master-uppsats, Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Författare :Muhammad Ali Badami; [2019]
    Nyckelord :FEEP; Cube Satellite; Indium; Slit Emitter;

    Sammanfattning : CubeSat development has seen a rise since the first launch in 2003 due to faster design process and low launch costs. It has played a vital role in providing access to space to small start-ups and academic organizations with low budgets. LÄS MER

  5. 5. Development of an Automated Test Platform for Characterization and Performance Assessment of Electronic Modules in Electric Thrusters : The TESPEMET Project

    Master-uppsats, Luleå tekniska universitet/Rymdteknik

    Författare :Sri Harsha Pavuluri; [2019]
    Nyckelord :rf ion thruster; electric thruster; automated test; micropython; test platform;

    Sammanfattning : There has been a sharp increase in the market for electric propulsion systems for small satellites in the recent years. Electric propulsion systems have become smaller, more efficient and cheaper, which made them ideal for small satellites because they have a low thrust requirement and benefit significantly from the high specific impulse (Isp) that is characteristic to electric thrusters. LÄS MER