Optimization of the transmitting response of a high power transducer in a wide bandwidth by finite element method

1981 ◽  
Vol 70 (S1) ◽  
pp. S78-S78
Author(s):  
B. Tocquet ◽  
D. Boucher ◽  
J. N. Decarpigny ◽  
J. C. Debus
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
High Power ◽  
Wide Bandwidth ◽  
Power Transducer ◽  
Element Method

Finite element method applied to stress simulation of high power 980nm pump lasers

1997 ◽  
Vol 37 (10-11) ◽  
pp. 1667-1670 ◽  
Author(s):  
M. Manna ◽  
F. Magistrali ◽  
M. Maini ◽  
D. Reichenbach
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
High Power ◽  
Pump Lasers ◽  
Stress Simulation ◽  
Element Method

scholarly journals Use of the finite element method for parameter estimation of the circuit model of a high power synchronous generator

2015 ◽  
Vol 63 (3) ◽  
pp. 575-582 ◽  
Author(s):  
S. Berhausen ◽  
S. Paszek
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Parameter Estimation ◽  
High Power ◽  
Synchronous Generator ◽  
Voltage Regulation ◽  
Circuit Model ◽  
The Finite Element Method ◽  
Electromagnetic Parameters ◽  
Element Method

Abstract The paper presents the two-dimensional, field-circuit model of a high power synchronous generator verified by measurements. The model enables determining the waveforms of electromagnetic quantities in steady and transient states. Verification of the model was based on comparison of the measured and calculated waveforms after a disturbance in the voltage regulation system of a TWW-200-2 generator operating in Połaniec Power Plant. There are also presented the field methods for determining electromagnetic parameters (synchronous reactances and time constants) when using the distributions of static and quasi-static, magnetic and electromagnetic fields calculated by the finite element method (FEM). The set of these parameters was used as the starting parameters of the optimization algorithm for estimation of electromagnetic parameters of the synchronous generator circuit model. The dynamic waveforms under the generator load conditions calculated by the finite element method are the basis of parameter estimation. The parameter estimation of the generator model was performed with the use of the least squares method.

Finite Element Analysis of C Axis of High-Power Direct-Drive Bi-Rotary Milling Head

2010 ◽  
Vol 34-35 ◽  
pp. 202-206
Author(s):  
Ming Yan ◽  
Peng Zheng ◽  
Yan Li ◽  
Xiu Feng Gao
Keyword(s):  
Finite Element Method ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Design Process ◽  
High Power ◽  
Direct Drive ◽  
Element Analysis ◽  
High Torque ◽  
Torsion Deformation ◽  
Element Method

In a direct-drive high-power A / C-axis bi-rotary milling head, torque is transferred by two parallel connected rotary direct drive motors in C-axis, therefore, the length of C axis is inevitable large, moreover, the transmission components of it are bearing high torque. The torsion deformation of C axis must compute accurately during the design process. The torsion deformation of the transmission components of C parts when C-axis is rotating is analyzed by finite element method, the racial deformation and the torsion deformation of the case when C-axis is locking are analyzed either, this computing can provide support for the design and improvement of this type of milling head.

scholarly journals Determination of the Leakage Reactance of End Windings of a High-Power Synchronous Generator Stator Winding Using the Finite Element Method

Energies ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 7091
Author(s):  
Sebastian Berhausen ◽  
Stefan Paszek
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
High Power ◽  
Short Circuit ◽  
Three Dimensional ◽  
Synchronous Generator ◽  
The Finite Element Method ◽  
Synchronous Generators ◽  
Calculation Results ◽  
Element Method

The paper presents a description of the method and the results of calculating the leakage reactance of high-power synchronous generator end windings using the finite element method. This reactance is one of the components of the stator leakage reactance of synchronous generators. The calculations were carried out under the assumption of a three-dimensional field distribution in a synchronous generator. The thus calculated value of the leakage reactance of the end windings was compared with the calculation results obtained using traditional, analytical formulas known from the literature. The analysis of the influence of the reactance value of the end windings on the transient waveforms at a three-phase short-circuit of the stator windings was performed based on a two-dimensional field-circuit model.

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