Essays about: "High-frequency injection"

Showing result 1 - 5 of 8 essays containing the words High-frequency injection.

  1. 1. Sensorless Field-Oriented Control and Position Estimation

    University essay from Lunds universitet/Industriell elektroteknik och automation

    Author : Roberts Bitenieks; Lars Brander; [2023]
    Keywords : Sensorless rotor position estimation; High-frequency injection; Technology and Engineering;

    Abstract : This master's thesis investigates the feasibility of implementing field-oriented control for a BLDC motor without relying on a position sensor from a standstill up to 400 rad/s. To achieve this objective, various approaches were used at standstill and high speeds. READ MORE

  3. 2. Sensorless Control of Synchronous Machines in Python Using Signal Injection : An implementation of a High-Frequency Square-Wave Injection Algorithm on a Linear and Non-Linear Synchronous Machine Model in open-source Software Motulator

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

    Author : Simon Lundberg; [2022]
    Keywords : High-frequency signal injection; Permanent Magnet Synchronous Motor; sensorless speed control; Synchronous Reluctance Machine; square-Wave injection; Fyrkantsvågsinjektering; högfrekvent signalinjektering; Permanentmagnetsmotor; sensorlös hastighetskontroll; synkron reluktansmotor;

    Abstract : The importance of accurately controlling the speed and torque of Synchronous Machines (SMs) in industry, transportation, aerospace, to name a few, can not be overstated. The driving unit to control the machines are called Variable Speed Drives (VSDs) and they can be designed in many different ways. READ MORE

  4. 3. Investigation of Sensorless Control of Permanent Magnet Synchronous Motor Using High Frequency Injection

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Lucas Bergstrand; [2020]
    Keywords : ;

    Abstract : This thesis implements and analyses a sensorless control method for permanent magnet synchronous motors. The purpose is to investigate if the results presented in a study performed by Millinger et al. can be replicated on an industrial grade embedded control system. READ MORE

  5. 4. Condition monitoring of induction machines using a signal injection technique

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

    Author : Sathiya Lingam Senthil Kumar; [2020]
    Keywords : Condition monitoring; fault detection; fault diagnosis; stator winding fault; inter-turn fault.; Tillståndsövervakning; feldetektering; feldiagnos; statorlindningsfel; kortslutning mellan varv.;

    Abstract : Condition monitoring techniques can be employed to enhance reliability of electric machinery. The stator winding fault is one of the dominant causes for the failure of induction machines. In this work, the condition monitoring of an inverter-fed induction machine using high-frequency signal injection based technique is investigated. READ MORE

  6. 5. Autologous conditioned serum och platelet rich plasma : innehåll och användning vid osteoartrit och senskador hos häst

    University essay from SLU/Dept. of Biomedical Sciences and Veterinary Public Health

    Author : Johan Lundgren; [2018]
    Keywords : autologt konditionerat serum; ACS; ; IRAP; Platelet Rich Plasma; PRP;

    Abstract : Rörelsestörningar hos hästar är ett problem med många orsaker, exempelvis trauma eller överbelastning. Som behandlande veterinär finns det flera behandlingsmetoder att välja mellan. Autologa behandlingsmetoder växer sig starkare och används idag av många, trots att behandlingarna inte är helt utredda till innehåll och funktion. READ MORE