The Design, control and performance performance analysis of AC motor drives with front end diode rectifier utilizing low capacitance DC bus capacitor and comparison with conventional drives

Download
2012
Aban, Vahap Volkan
In this thesis the design, control, stability, input power quality, and motor drive performance of ac motor drives with front end three phase diode rectifiers utilizing low capacitance dc bus capacitor are investigated. Detailed computer simulations of conventional motor drives with diode rectifier front end utilizing high capacitance dc bus capacitor and the drives with low capacitance dc bus capacitor are conducted and the performances are compared. Performance evaluation of various active control methods found in previous studies aiming to provide the dc bus stability of drives with low capacitance dc bus capacitor are done at various load levels and types. Design recommendations are provided for the drives utilizing low capacitance dc bus capacitor.

Suggestions

Calculation of core losses of a six-phase induction motor with third harmonic current injection
Büyükbaş, Afşin; Ertan, Hulusi Bülent; Department of Electrical and Electronics Engineering (2004)
The advantages of using a six-phase induction motor for industrial drives, over the conventional three-phase drive can be summarized as improved reliability, reduction on the power ratings for the static converters and harmonic reduction. A technique of injecting third harmonic zero sequence current components in the phase currents to improve the machine torque density was presented recently by another research study. However, to meaninigfully evaluate the performnce of such machines and/or to be able to ma...
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...
The Active Flux Concept for Motion-Sensorless Unified AC Drives: a review
Boldea, I.; Agarlita, S. C. (2011-09-10)
Rotor and stator flux orientations are now standard concepts in vector and direct torque control of ac drives. The salient-pole rotor machines, where magnetic saturation plays a key role, still pose notable problems in flux, rotor position and speed estimations for motion-sensorless control, especially in the low-speed range (below 30 rpm in general), leading to numerous dedicated state observers. This paper review introduces a rather novel (or generalization) concept active flux or torque-producing flux an...
Design of an interleaved PWM rectifier for AC locomotives and implementation of its laboratory prototype
Uğur, Mesut; Ermiş, Muammer; Çadırcı, Işık; Department of Electrical and Electronics Engineering (2015)
This research work is devoted to the design, and prototype implementation of a single-phase, unity power factor, Pulse Width Modulated (PWM) Rectifier for use in traction converters of AC locomotives. The PWM Active Rectifier is supplied from a front-end transformer, with two isolated secondary windings. The associated power stage is composed of two single-phase, H-bridge voltage-source converters, which are interleaved via a common DC link. Interleaved connection of converters is used to reduce the line cu...
Citation Formats
V. V. Aban, “The Design, control and performance performance analysis of AC motor drives with front end diode rectifier utilizing low capacitance DC bus capacitor and comparison with conventional drives,” M.S. - Master of Science, Middle East Technical University, 2012.