Improved torque and speed control performance in a vector-controlled PWM-VSI fed surface-mounted pmsm drive with conventional P-I controllers

Download

index.pdf

Date

2012

Author

Büyükkeleş, Ümit

Metadata

Show full item record

Item Usage Stats

284
views

251
downloads

In this thesis, high performance torque and speed control for a surface-mounted permanent magnet synchronous machine (PMSM) is designed, simulated and implemented. A three-phase two-level pulse width modulation voltage-source inverter (PWM-VSI) with power MOSFETs is used to feed the PMSM. The study has three objectives. The first is to compensate the voltage disturbance caused by nonideal characteristics of the voltage-source inverter (VSI). The second is to decouple the coupled variables in the synchronous reference frame model of the PMSM. The last is to design a load torque estimator in order to increase the disturbance rejection capability of the speed control. The angular acceleration required for load torque estimation is extracted through a Kalman filter from noisy velocity measurements. Proposed methods for improved torque and speed control performance are verified through simulations and experimental tests. The drive system is modeled in Matlab/Simulink, and control algorithms are developed based on this model. The experimental drive system comprises a three-phase VSI and a 385 W surface-mounted PMSM. Control algorithms developed in the study have been implemented in a digital signal processor (DSP) board and tested comprehensively. With the use of the proposed methods, a considerable improvement of torque and speed control performance has been achieved.

Subject Keywords

Electric motors, Synchronous., Vector control., Kalman filtering.

URI

http://etd.lib.metu.edu.tr/upload/12614294/index.pdf
https://hdl.handle.net/11511/21506

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

Field oriented control of a permanent magnet synchronous motor using space vector modulated direct AC-AC matrix converter Yıldırım, Doğan; Ersak, Aydın; Department of Electrical and Electronics Engineering (2012) The study designs and constructs a three-phase to three-phase direct AC–AC matrix converter based surface mounted permanent magnet synchronous motor (PMSM) drive system. First, the matrix converter topologies are analyzed and the state-space equations describing the system have been derived in terms of the input and output variables. After that, matrix converter commutation and modulation methods are investigated. A four-step commutation technique based on output current direction provides safe commutation ...
FPGA implementation of field oriented control forpermanent magnet synchronous motor Irmak, Gizem; Saranlı, Afşar; Department of Electrical and Electronics Engineering (2019) The thesis study focuses on the fully operational FPGA implementation for the current/torque control of a Permanent Magnet Synchronous Motor. 3-phase synchronous motors with permanent magnets can be categorized into two categories as Permanent Magnet Synchronous Motor (PMSM) and Brushless Direct Current (BLDC) motor. The main difference between PMSM and BLDC is the shape of the induced back-EMF voltage. While BLDC motors have trapezoidal shaped back-EMF, PMSMs have a sinusoidal back-EMF. In order to take ad...
An FPA based BLDC motor control system Uygur, Serdar; Güran, Hasan Cengiz; Department of Electrical and Electronics Engineering (2012) In this thesis, position and current control systems for a brushless DC (Direct Current) motor are designed and integrated into one FPGA (Field Programmable Gate Array) chip. Experimental results are obtained by driving the brushless DC motors of Control Actuation System of a guided missile. Because of their high performance, brushless DC motors are widely used in Control Actuation Systems of guided missiles. In order to control the motor torque, current controller is designed and implemented in the FPGA. P...
Implementation of a vector controlled induction motor drive Acar, Akın; Ertan, Hulusi Bülent; Department of Electrical and Electronics Engineering (2004) High dynamic performance, which is obtained from dc motors, became achievable from induction motors with the recent advances in power semiconductors, digital signal processors and development in control techniques. By using field oriented control, torque and flux of the induction motors can be controlled independently as in dc motors. The control performance of field oriented induction motor drive greatly depends on the correct stator flux estimation. In this thesis voltage model is used for the flux estima...
Implementation of sensorless vector control drive with current position estimation Filci, Tayfun; Ertan, Hulusi Bülent; Department of Electrical and Electronics Engineering (2016) In this thesis, an algorithm will be developed and implemented online for the estimation of rotor position from the rotor slot harmonics in stator currents. Experiments will be done on an inverter driven induction motor hardware, and the performance of the position detection algorithm will be evaluated in comparison with commercial encoder outputs.

Citation Formats

Ü. Büyükkeleş, “Improved torque and speed control performance in a vector-controlled PWM-VSI fed surface-mounted pmsm drive with conventional P-I controllers,” M.S. - Master of Science, Middle East Technical University, 2012.