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Multilevel inverters are an attractive choice for multi mega-watt industrial drive applications. In comparison with conventional two level voltage source inverter this technology gives quality performance. In this paper comparison of three classical topologies of three phase multilevel inverter is presented. The multilevel inverters analyzed using MATLAB-Simulink software are Neutral-Point-Clamped...
Conventional techniques for sensorless control of permanent magnet synchronous motor drive (PMSM) which requires information of rotor position are reviewed and recent developments in this area are introduced in this paper along with their inherent advantages and drawbacks. The paper presents an improved method for sensorless speed control of PMSM drive with emphasis placed on signal injection method...
This paper proposes a hardware implementation of new method for speed sensorless control of surface mounted (SM) permanent magnet synchronous motor (PMSM) drive. It adopts combination of the DC link measurement and the modified model reference adaptive scheme (MRAS) to estimate rotor speed and position. A 16-bit dsPIC33EP256MC506 DSC is used to implement the proposed estimation algorithm and the control...
The paper presents the functional simulation model and performance analysis of permanent magnet synchronous motor (PMSM) drive. The control of PMSM is achieved using vector control technique which provides decoupled control of flux and torque. Using a proportional integral (PI) controller in the speed loop, a closed loop control scheme has been implemented and tested at different operating conditions...
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