Measurement of brushless dc motor characteristics and parameters and brushless dc motor design

Download

index.pdf

Date

2010

Author

Şahin, İlker

Metadata

Show full item record

Item Usage Stats

331
views

1056
downloads

The permanent magnet motors have become essential parts of modern motor drives recently because need for high efficiency and accurate dynamic performance arose in the industry. Some of the advantages they possess over other types of electric motors include higher torque density, higher efficiency due to absence of losses caused by field excitation, almost unity power factor, and almost maintenance free construction. With increasing need for specialized PM motors for different purposes and areas, much effort has also gone to design methodologies. In this thesis a design model is developed for surface PM motors. This model is used with an available optimization algorithm for the optimized design of a PM motor. Special attention is paid to measurement of parameters of a sample PM motor. As a result of this study, an effective analytical model with a proven accuracy by measurement results is developed and applied in a design process of a surface PM motor. Parametric and performance results of analytical model and tests have been presented comparatively. A prototype motor has been realized and tested.

Subject Keywords

Electrical engineering.

URI

http://etd.lib.metu.edu.tr/upload/3/12611481/index.pdf
https://hdl.handle.net/11511/19315

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

A control algorithm to minimize torque ripple and acoustic noise of switched reluctance motors Bizkevelci, Erdal; Ertan, Hulusi Bülent; Department of Electrical and Electronics Engineering (2008) Despite its simple construction, robustness and low manufacturing cost, the application areas of SR motors are remained limited due to the high level of acoustic noise and torque ripple. In this thesis work, two different type of controllers are designed and implemented in order to minimize the acoustic noise and torque ripple which are considered as the major problems of SR motors. In this scope, first the possible acoustic noise sources are investigated. A sliding mode controller is designed and implement...
Investigation of multilevel inverters for d-statcom applications Deniz, Mustafa; Ermiş, Muammer; Department of Electrical and Electronics Engineering (2009) The most important advantages of Multilevel Inverters are the absence of a coupling transformer for medium voltage applications and low harmonic current content. In this way, relocatable and economical STATCOM systems can be realized. Complex control algorithms and the isolation problems of measurement devices and power supplies are the main challenging parts of this type of application. In this study, the design, realization, and the performance of a Voltage Source Type Cascaded Multilevel Converter Based ...
Performance optimization of induction motors during voltage-controlled soft starting Zenginobuz, G; Cadirci, I; Ermiş, Muammer; Barlak, C (Institute of Electrical and Electronics Engineers (IEEE), 2004-06-01) This paper deals with the performance optimization of medium/high-power induction motors during soft starting by eliminating the supply frequency torque pulsations, and by keeping the line current constant at the preset value. Starting torque pulsations are eliminated by triggering back-to-back-connected thyristors at proper points on the first supply voltage cycle. Line current during starting can be kept constant at any preset value by a simple strategy composed of successive cosinusoidal and constant fun...
Estimation of steady-state temperature distribution in power transformer by using finite difference method Gözcü, Ferhat Can; Ertaş, Arif; Department of Electrical and Electronics Engineering (2010) Estimating the temperature distribution in transformer components in the design stage and during the operation is crucial since temperatures above the thermal limits of these components might seriously damage them. Thermal models are used to predict this vital information prior to actual operations. In this study, a two-dimensional, steady-state model based on the Finite Difference Method (FDM) is proposed to estimate the temperature distribution in the three-phase, SF6 gas insulatedcooled power transformer...
Design and implementation of a current source converter based active power filter for medium voltage applications Terciyanlı, Alper; Ermiş, Muammer; Department of Electrical and Electronics Engineering (2010) This research work is devoted to the design, development and implementation of a Current Source Converter (CSC) based Active Power Filter (APF) for Medium Voltage (MV) applications. A new approach has been proposed to the design of the CSC based APF for reducing the converter kVA rating considerably. This design approach is called the Selective Harmonic Amplification Method (SHAM), and is based on the amplification of some selected harmoniccurrent components of the CSC by the input filter, and the CSC contr...

Citation Formats

İ. Şahin, “Measurement of brushless dc motor characteristics and parameters and brushless dc motor design,” M.S. - Master of Science, Middle East Technical University, 2010.