Computational analysis of a permanent magnet synchronous machine using numerical techniques

... is vital to machine analysis as it is a fast and low-cost way of predicting machine performances Traditional analytical methods, such as lumped parameter models are computationally fast and simple ... It also deals with the parameter estimation of permanent magnet synchronous machines using both experimental and computational methods A line-start interior permanent...

Ngày tải lên: 15/09/2015, 22:17

... The development of Permanent Magnet Machines 1.1.2 Features of permanent magnet motors Permanent magnet synchronous motors iii 1.2.1 Structures and operating principles ... with the analysis and design of buried type Interior Permanent Magnet Synchronous Motors (IPMSM) The objective is to develop a design optimization procedure for this type of...

Ngày tải lên: 04/10/2015, 15:45

... certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona; Gresham, Oregon and design centers in California and India The Company’s quality ... the motors’ characteristic parameters implied in the control of the air gap field weakening The effect of the armature d-axis current over the air gap field weakening depen...

Ngày tải lên: 11/01/2016, 17:05

... knowledge of the non sinusoidal permanent magnet synchronous motor We are so able as well to analyse the classical control laws such as 120' voltage control for example, as to deduce of this new ... electromotiveforces, the motor being not supply Park's transformation AAer this first transfoxmation, the Pa& transfomation allows us to work in the rot...

Ngày tải lên: 03/01/2014, 19:50

... Torque performance of SVM based DTC and Current Control for a wide speed operation 169 6.26 Power performance of SVM based DTC and Current Control for a wide speed operation ... Control of IPMSM in Wide Speed Operation 24 Outline of the Thesis 25 Analysis of Interior Permanent Magnet Synchronous Motors for Wide- Speed Operation ... pr...

Ngày tải lên: 15/09/2015, 22:06

... FAULT DIAGNOSIS OF PERMANENT MAGNET SYNCHRONOUS MOTOR BASED ON MECHANICAL AND MAGNETIC CHARACTERISTIC ANALYSES YU YINQUAN A THESIS SUBMITTED FOR THE DEGREEM OF DOCTOR OF PHILOSOPHY ... COMPUTATION OF UNBALANCED MAGNETIC PULL AND MECHANICAL UNBALANCED FORCE IN MOTOR 64 5.1 Fundamental theory of electromagnetic force calculation 64 5.2 Introduction of...

Ngày tải lên: 16/09/2015, 12:06

... to characterize the material Another type of material that is characterized by a broad hysteresis loop is called hard magnetic material 1.3.1 Hard magnetic materials (Permanent magnets) Permanent ... commutator motor: The construction of a permanent magnet DC motor( PMDC) is similar to a DC conventional motor with the electromagnetic excitation system replaced by per...

Ngày tải lên: 16/09/2015, 12:26

... types of Darrieus rotors are mainly available, namely troop skein (Eggbeater) Darrieus rotor and H-Darrieus rotor H-Darrieus rotor was in the same patent of 1931[2] It has two to three airfoil shaped ... 0.265 at a TSR of 2.214, and the maximum Ct obtained is 0.124 at a TSR of 1.962 And the standard deviation of computational Cp from experimental Cp is 0.81% an...

Ngày tải lên: 05/09/2013, 15:28

... residues are not described well and there is no example of mutational analysis of all of these residues in the same enzyme To obtain an insight into how the many conserved residues in the active sites ... circulans, whereas it may be mutated to asparagine without loss of activity in other family 18 chitinases [28,30] Preliminary results of a compara...

Ngày tải lên: 07/03/2014, 14:20

... Semantic patterns in complex noun phrases fall into two types: part names and other noun phrases Names for pieces of equipment often contain complex noun sequences, i.e stacked nouns The relationships ... sequences A major feature of noun phrases in this set of messages is the presence of many long sequences of left modifiers of nouns, (3) {3) (a) forward kingpost...

Ngày tải lên: 08/03/2014, 18:20

... terms of a closely related automaton, the Bottom-up EPDA (BEPDA) ~ The BEPDA consists of a finite-state control and of a stack of stacks There are two types of moves: either an input is read and ... new stack on top of the stack of stacks, or a fixed number of stacks below and above a designated stack on the stack of stacks is removed and a new symbol is push...

Ngày tải lên: 23/03/2014, 20:20

... of spatial processing at cell site (CS) Therefore this paper presents the BER analysis of AA receiver in reverse-link asynchronous multipath Rician channels, and analyzes the performance of an ... /Ω(k) , and note that at Kr(k) = −∞ dB, the specular path is absent and the channel is a multipath Rayleigh fading environment [16] Here, it is assumed that multipath Ri...

Ngày tải lên: 23/06/2014, 00:20

... and R McElveen, “InIMPORTANCE OF duction vs permanent magnet motors, ” IEEE now profit from the advantages of PM Ind Applicat Mag., vol 15, no 6, pp 28–35, motors For single-speed applications, ... high motor efficiency when the motor is designed for and operated at 60 Hz instead of 50 Hz The difference in efficiency between 50 and 60 Hz varies with the number of po...

Ngày tải lên: 26/11/2015, 09:42

... understand the behavior of the variables involved in economical and financial assessing of a wind farm as a manner of validating the indicators of attractiveness and risk of energy projects and analysis ... projects and costs evaluation The economic assessment of hypothetical wind farm installed in Caldas da Rainha, we obtained the following results: Attr...

Ngày tải lên: 05/09/2013, 14:59

... V RELIABILITY ANALYSIS OF THE POWER SYSTEM The reliability of the power system is analyzed using the multi- state system theory According to (2), the universal generating function of the battery ... this paper, and is compared 97 (1) The reliability of the power system obtained by the traditional system reliability theory is always co...

Ngày tải lên: 03/01/2014, 19:38