Essays about: "DC voltage injection"

Showing result 1 - 5 of 9 essays containing the words DC voltage injection.

  1. 1. Commissioning and Testing of a Novel Buck-Boost Phase-Modular Three-Phase AC/DC Converter with Low Component Number

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

    Author : Saransh Chhawchharia; [2022]
    Keywords : ;

    Abstract : In this thesis, a 1kW hardware prototype of a three-phase inverting buck-boost converter, termed as 6 Switch Buck-Boost Y-Inverter (6YI) is commissioned and tested. The 6YI is designed to be used as a motor drive for renewable energy applications such as fuel cell, solar etc powered motor drives with wide input voltage capability. READ MORE

  3. 2. Parameter Study of Arc Squeezing DC Breaker : The impact of the geometry on counter force, pressure, and arc voltage

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

    Author : Johanna Olsson; [2022]
    Keywords : Arc squeezing; DC breaker; Polymer ablation; Pressure measurement; Ljusbågssläckning; DC brytare; Polymerablation; Tryckmätning;

    Abstract : The sustainable future in our already electrified world includes solar power generation, battery storage, and electric vehicles all which requires DC systems. DC breakers play a key role in operation and protection within the DC system. READ MORE

  4. 3. Real-time detection of stator resistance unbalances in three phase drives

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

    Author : Bhanu Pratap Singh; [2020]
    Keywords : DC voltage injection; Fault detection; Field-Oriented Control; Induction machine; Inter-Turn Short Circuit; Short circuit; Sequence; Stator resistance unbalance; Symmetrical components; likspänningsinjektion; feldetektering; fält orienterad reglering; induktionsmaskin; InterTurn Short Circuit; kortslut; sekvenser; statormotstånd obalans; symmetriska komponenter;

    Abstract : An estimated 30% of the faults in Induction Machine (IM) are related to its stator. These faults are mostly in the form of an Inter-Turn Short Circuit (ITSC) fault i.e., when two winding inside the stator of IM are shorted due to insulation failure. READ MORE

  5. 4. Analysis Of A Wave Power System With Passive And Active Rectification

    University essay from Uppsala universitet/Institutionen för elektroteknik

    Author : Ferdus Wahid; [2020]
    Keywords : WEC; Optimal damping coefficient; Power smoothing; Passive rectifier; Active rectifier; Buck converter; Bi-directional DC-DC converter; Flywheel; Battery; Bi-directional voltage source converter; Voltage source inverter;

    Abstract : Wave energy converter (WEC) harnesses energy from the ocean to produce electrical power. The electrical power produced by the WEC is fluctuating and is not maximized as well, due to the varying ocean conditions. As a consequence, without any intermediate power conversion stage, the output power from the WEC can not be fed into the grid. READ MORE

  6. 5. Sensorless algorithm for synchronous machines using current oversampling and PWM harmonics

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

    Author : Giorgio Gullone; [2018]
    Keywords : ;

    Abstract : Sensorless-controlled drives represent a solution drawing an increasinglyimportant attention for the benefits they entail. At the cost ofa slightly lower dynamics compared with the traditional drives, theyinvolve a reduction of the system costs and complexity and improvednoise immunity and reliability. READ MORE