Essays about: "rotor current"

Showing result 6 - 10 of 55 essays containing the words rotor current.

  1. 6. Field Oriented Current Control with Harmonic Injection in a Six-Phase Induction Machine

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

    Author : Xinyue Shan; [2021]
    Keywords : Multi-phase machine; asymmetrical six-phase induction machine; harmonic plane decomposition; indirect rotor field oriented control; parameter estimation; Flerfasmaskin; asymmetrisk sexfasinduktionsmaskin; harmonisk plan sönderdelning; indirekt rotorfältorienterad styrning; parameteruppskattning;

    Abstract : As a new type of machine, the multi-phase machine has the advantages ofhigher power rating, higher fault tolerance capability and more degrees offreedom to control compared with the traditional machine. Aiming at runninga multi-phase machine with different phase-pole configurations smoothly,a new method called harmonic plane decomposition is presented. READ MORE

  3. 7. Reaction Wheel Performance Characterisation and Assessment of Electromagnetic Interactions with Magnetic Torquers

    University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Author : Leonie Sander; [2021]
    Keywords : Reaction Wheel; Magnetic Torquers; Electromagnetism; Space Mechanism; Attitude Control;

    Abstract : Having an in-depth knowledge on the performance characteristics of space mechanisms in flight operation, with special attention to nominal vs. anomalous performance, is vital for mission success. READ MORE

  4. 8. The role of location of low inertia in power systems

    University essay from Uppsala universitet/Institutionen för elektroteknik

    Author : Bashar Alahmad; [2021]
    Keywords : Low inertia; Frequency stability; Rotor-angle stability; Nordic 32; Kundur; PowerFactory; Small-signal stability; Inter-area oscillation; Rate of Change of Frequency.;

    Abstract : The plans to reduce the energy-related greenhouse gas emissions stimulate the deployment of electronically interfaced renewable resources. The increased penetration of such intermittent sources together with phasing conventional power plants out and the installation of High Voltage Direct Current (HVDC) links for long-distance more efficient transmission, reduces the stored inertia in any electrical grid. READ MORE

  5. 9. Predict Flow Field and Mixing Time for High-Shear Mixers Using CFD

    University essay from Lunds universitet/Institutionen för energivetenskaper

    Author : David Fransson; Eric Kihlman; [2021]
    Keywords : CFD; High-Shear Mixer; Energy Science; Simulation; Mixing time; blend time; Flow Field; Technology and Engineering;

    Abstract : Batch high-shear mixers are used in a variety of different processing industries,such as the pharmaceutical, chemical and food industries. One company that utilize this type of mixers is Tetra Pak. High-shear mixers can be used for many different mixing scenarios, but only liquid-liquid mixing is discussed in the thesis. READ MORE

  6. 10. Closed Loop Control of PMSM Motor : Field Oriented Control Using Hall Sensors

    University essay from Linköpings universitet/Fordonssystem

    Author : Shawon Kumar Baral; [2021]
    Keywords : BLDC; PMSM; 6 step; FOC; Clarke; Motor; Park; PWM; Rotor; SVPWM;

    Abstract : Fossil-fuel vehicles are one of the main causes of CO2 emissions nowadays. As we are moving toward cleaner environment electrification of vehicles are becoming more and more popular. With the environment in mind, the recent improvement in battery technology and electronics has drawn a lot of attention to Brushless DC or BLDC  motors. READ MORE