Last edited by Fejar
Friday, July 17, 2020 | History

2 edition of Curve-fit modelling of an amplidyne on open circuit. found in the catalog.

Curve-fit modelling of an amplidyne on open circuit.

Mohammed Osman Mahmoud

Curve-fit modelling of an amplidyne on open circuit.

by Mohammed Osman Mahmoud

  • 166 Want to read
  • 12 Currently reading

Published in Bradford .
Written in English


Edition Notes

Ph.D thesis. Typescript.

SeriesTheses
The Physical Object
Pagination163p.
Number of Pages163
ID Numbers
Open LibraryOL13784601M

Determining Circuit Parameters For developed model to be useful, there must be a way to determine the values of the model parameters. We use two test to determine this parameters: Short-circuit test One side of the transformer is shorted, and voltage is applied on the other side until rated current flows in . EIS Modeling • Complex systems may require complex models. • Each element in the equivalent circuit should correspond to some specific activity in the electrochemical cell. • It is not acceptable to simply add elements until a good fit is obtained. • Use the simplest model that fits the data.

amplidyne, inc.: International Competitive Benchmarks and Financial Gap Analysis (Financial Performance Series) Unbound – Oct. 31 by Icon Group Ltd. (Author)Author: Icon Group Ltd. An Improved Electrical Equivalent Circuit Model for Dynamic Moving Coil Transducers. length of the core and the very open structure of the. the curve fit and the measured data are in.

Electrical-actuation Subsystem 77 a. General Operation 77 b. Components of System 78 Description of Amplifier 78 a. The Amplifier Tubes 79 b. Amplifier Operation 81 (1) Supply-voltage Circuits 81 (2) Output-voltage Circuit 81 (3) High-speed Control Circuit 82 (4) Low-speed Control Circuit 83 (5) Antihunt Circuit 83 Analysis of a Simple R-L Circuit and Inductor Behavior Analysis of a Simple R-L Circuit with DC Supply: The circuit shown in Figures-1 is a simple R-L circuit (it has one simple resistor & inductor connected in series with a voltage supply of 2V); Though it is a simple circuit but if you will analyze it, your Electrical Engineering basics will be enhanced.


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Curve-fit modelling of an amplidyne on open circuit by Mohammed Osman Mahmoud Download PDF EPUB FB2

Curve-fit modelling of an amplidyne on open circuit Author: Mahmoud, M. ISNI: Awarding Body: University of Bradford Current Institution: University of Bradford Date of Award: Availability of Full Text: Access from EThOS. The terminal voltage of an Amplidyne is considered almost constant.

The power amplification (e ad i d /e f i f) is of the order of 10 5 as compared to for a direct current generator. A series connected quadrature axis (q axis) winding is placed on the stator of the amplidyne to improve its performance and, as a result, quadrature (q axis.

Andrei A. Kulikovsky, in Analytical Modelling of Fuel Cells, Remarks. Voltage loss at open circuit E 0 cannot be explained within the scope of a 1D model: the formation of the jumper is a 2D effect.

This can be seen from the expression for j ˜ 0 0 (), which contains the parameter of the flow that the experiments show strong dependence of the cell open-circuit voltage.

Figure (b) typifies the three voltage waveforms, simulated at the open end of a high voltage transmission system shown in Figure (a), when the line is energised by closing the circuit is assumed that prior to circuit breaker reclosure, the line carries a trapped charge of −− and per unit on the a, b and c phases, respectively.

Amplidyne is the most common version of the Metadyne. It consists of the basic metadyne in which a compensating winding is connected in series with the power output brush terminals.

The compensating winding cancels out the d axis MMF, which opposes. a synchronous generator is a couple-circuit model, two is modeled using the open-circuit saturation curve (fit to a. quadratic model 5); testing and has co-authored a book on subsynchronous.

The field circuit resistance is Ω and the armature resistance is 10 Ω. Compute the input voltage and field current for an output voltage of V on open circuit. With the field excitation constant as in (a), find the output voltage and power amplification for a load current of A. In order to ensure this, in the frame slots of the amplidyne there is (in addition to the interpole commutating winding) a compensation winding situated on the frame of the amplidyne and connected in series with the current circuit, the function of which is to compensate for the magnetising force of.

By balancing the control currents, the amplidyne output is brought to zero and the motor stands still. The difference between the two control currents determines the amount of power supplied to the motor. 10D5. 5”/54 amplidyne train drive.

An example of amplidyne power drives in the Navy is the Train Power Drive Mark 14 on the 5”/54 single. Extracting Model Parameters from Data. Modeling Overview. EIS data are generally analyzed in terms of a equivalent circuit model.

Echem Analyst tries to find a model whose impedance matches the measured data. The type of electrical components in the model and their interconnections control the shape of the model's impedance spectrum.

curve_fit has searched the suitable fit function. – Serenity Jun 8 '16 at When I define my x and y values as the arrays, i'm returned with this, ufunc 'multiply' did not contain a loop with signature matching types dtype('S32') dtype('S32') dtype('S32') – iron2man Jun 8 '16 at Abstract: The amplidyne is a cross-field-excited d.c.

generator, in which the field input is much smaller than that of a normal generator. Because of this property it can be used as an automatic regulator for a wide variety of industrial equipments.

In such an equipment, the amplidyne is generally used as an exciter for a larger machine or combination of machines, such as a.c.

or d.c. Fit curves and surfaces to data using the functions and app in Curve Fitting Toolbox™.Several linear, nonlinear, parametric, and nonparametric models are can also define your own custom models. Fit N-dimensional data using the linear and nonlinear regression capabilities in Statistics and Machine Learning Toolbox™.You can also use machine learning algorithms for data-driven.

The set of equations here reported, constitutes a model of the DC motor, which may 6. be represented as a nonlinear dynamic system. The main restrictions of this model, with.

The requirements of a short-circuit study will depend on the objectives. set These objectives will dictate what type of short-circuit analysis is required. The amount of data required will also depend on the extent and the nature of the study. The majority of short-circuit studies in industrial and commercial power systems address one or.

Follow the numbering that is given in the book. Give the “Bus Names” as mentioned in the book. You must type the names within single quotes. ‘OWL’ etc. iii. Enter the “Base-KV” in the 3rd column. Refer the last but one paragraph on the page to find the KV rating of every bus.

Chapter Curve Fitting. The Fit Curve Options Group. Type the number of points to be used in the fit curve data set in the Points text box. of points in the raw data curve, and P (the P value for R-square = 0).

air gap line, the open-circuit saturation curve, and the saturation curve at full load and rated power factor. PG&E Transmission Interconnection Handbook Janu AN-4 ___ 2. General Electric, Amplidyne regulator – NA ___ 3 General Electric, Amplidyne regulator – NA ___ l Electric, Amplidyne regulator – NA I.

Equivalent Circuit Models Lecture 6: Impedance of Electrodes MIT Student (and MZB) 1. Flat Electrodes In the previous lecture, we leant about impedance spectroscopy.

Electrochemical impedance spectroscopy is the technique where the cell or electrode impedance is platted versus frequency. • Analytical models of phenomena (e.g.

equations from physics) • Create an equation from observed data 1) Interpolation (connect the data-dots) If data is reliable, we can plot it and connect the dots This is piece-wise, linear interpolation This has limited use as a general function.

Models are easy to define and modify for whatever circuit you want to fit to your data, and you can include mathematical factors such as a dependency for skin-effect resistance.

More than 40 models are included for different circuit configurations and as starting points for your own models.The largest signal of each data set ( nF for C 2 characterization, and kΩ for R characterization) was curve-fit using (2) to estimate the component values of the circuit model load, and these values were then used to calculate the output of the circuit analytical expression for the other component values used for characterization.List of Library Models for Curve and Surface Fitting Use Library Models to Fit Data.

You can use the Curve Fitting Toolbox™ library of models for data fitting with the fit function. You use library model names as input arguments in the fit, fitoptions, and fittype functions. Library Model Types.