- •Contents
- •1 LAboratory work # 1
- •Mathematical model
- •Stages of a program elaboration
- •Call Desktop matlab
- •Script-files and Function-files
- •Enter of input data by awarding method. Comments
- •Organization of enter of the input data by a dialogue mode
- •Creation of Function-file
- •Graphical output
- •2 LAboratory work # 2
- •Debugging and verification of programs
- •Search of syntactic mistakes
- •Debugging with the help of Editor/Debugger
- •Verification of results of calculation
- •3 LAboratory work # 3
- •The task for fulfillment
- •Individual tasks
- •4 LAboratory work # 4
- •Mathematical model
- •The block-diagram of algorithm of calculation according to mathematical model
- •The task for fulfillment
- •5 LAboratory work # 5
- •The task for fulfillment
- •Individual tasks
- •6 LAboratory work # 6
- •Mathematical model
- •Determination of zero approximation
- •Program of calculation in matlab environment
- •Results of calculation
- •Individual tasks
- •The task for fulfillment
- •7 LAboratory work # 7
- •Mathematical model
- •Program of calculation at matlab environment
- •Results of calculation
- •Individual tasks
- •The task for fulfillment
- •8 LAboratory work # 8
- •Mathematical model
- •Results of calculation
- •Improvement of convergence of the Newton method
- •The task for fulfillment
- •9 LAboratory work # 9
- •Mathematical model
- •The program of calculation in matlab environment
- •Results of calculation
- •The task for fulfillment
- •10 LAboratory work # 10
- •The task for fulfillment
- •Individual tasks
- •LIst of literature
Results of calculation
In figure 9.5 graphical functional dependences of calculated values of induction in the magnetic circuit (fig. 9.1) accord to each step of iteration are represented.
The task for fulfillment
· To study item 9.1.
· To repeat the program represented in item. 9.1 and to obtain dependences B(k)
into each limb of magnetic system (fig. 9.5);
· To display the finish numerical values of magnetic induction;
· To verify program;
· Laboratory work results (the program, listing of calculation, graphics) are saved in a personal file.
Figure 9.5 – Calculated curves of magnetic induction in limbs of the core according to iteration step
10 LAboratory work # 10
TOPIC : Modeling of electromagnetic processes in magnetic circuits of a direct magnetic flux in MATLAB environment. Part 2.
PURPOSE OF THE WORK: Problem statement, development of the program of calculation of a nonlinear magnetic circuit by the Newton method using discrete models of nonlinear resistance and their spline-interpolation.
The task for fulfillment
For the given variant of the magnetic circuit:
Develop mathematical model for calculation of magnetic fluxes through the core;
Make the program realizing developed model;
Organize graphical output of the calculated values of magnetic inductions in the magnetic circuit (fig. 10.1) accord to the number of each step of iteration;
Debug the program;
Verify program;
Save the results of the work (the program, listing of calculation, graphics) at your personal file;
Draw up the report on laboratory work. The report would contain the mathematical model of the studied circuit, texts of programs, results of calculation, conclusion.
Individual tasks
The design of a magnetic system is represented in figure 10.1.
Figure 10.1 – The modeled magnetic circuit
Parameters of a magnetic system according to the given variant are placed in table 10.1, where L11 is thickness of the core limbs.
A curve of magnetization B(H) is adduced in methodical direction to laboratory work #9.
Table 10.1.
Var #
|
L1, mm |
L2, mm |
L3, mm |
L4, mm |
L5, mm |
L6, mm |
L7, mm |
L8, mm |
L9, mm |
L10, mm |
L11, mm |
I1, A |
I2, A |
N1 |
N2 |
1 |
20 |
80 |
25 |
80 |
20 |
25 |
80 |
0.02 |
0.02 |
25 |
25 |
10 |
10 |
60 |
60 |
2 |
25 |
80 |
20 |
80 |
20 |
20 |
80 |
0.01 |
0.02 |
20 |
20 |
20 |
10 |
30 |
60 |
3 |
20 |
100 |
20 |
100 |
20 |
20 |
100 |
0.03 |
0.02 |
20 |
20 |
40 |
10 |
10 |
60 |
4 |
30 |
80 |
30 |
80 |
30 |
30 |
80 |
0.04 |
0.01 |
30 |
30 |
40 |
30 |
14 |
20 |
5 |
20 |
90 |
20 |
90 |
20 |
20 |
90 |
0.02 |
0.03 |
20 |
20 |
50 |
5 |
40 |
50 |
6 |
15 |
80 |
15 |
80 |
15 |
15 |
80 |
0.05 |
0.03 |
15 |
15 |
15 |
10 |
15 |
10 |
7 |
20 |
70 |
20 |
70 |
20 |
20 |
70 |
0.06 |
0.04 |
20 |
20 |
35 |
30 |
50 |
20 |
8 |
40 |
180 |
40 |
180 |
40 |
40 |
180 |
0.02 |
0.02 |
40 |
40 |
50 |
7 |
10 |
80 |
9 |
50 |
200 |
50 |
200 |
50 |
50 |
200 |
0.07 |
0.07 |
50 |
50 |
70 |
20 |
20 |
60 |
10 |
20 |
90 |
20 |
90 |
20 |
20 |
90 |
0.01 |
0.1 |
20 |
20 |
30 |
10 |
40 |
40 |
11 |
30 |
100 |
30 |
100 |
30 |
30 |
100 |
0.05 |
0.02 |
30 |
40 |
55 |
15 |
5 |
15 |
12 |
50 |
100 |
50 |
100 |
50 |
50 |
300 |
0.08 |
0.07 |
50 |
50 |
70 |
40 |
20 |
10 |
13 |
40 |
150 |
40 |
150 |
40 |
40 |
140 |
0.05 |
0.05 |
60 |
40 |
50 |
60 |
10 |
80 |
14 |
40 |
100 |
40 |
100 |
30 |
30 |
100 |
0.05 |
0.02 |
30 |
40 |
55 |
15 |
50 |
45 |
15 |
10 |
60 |
10 |
60 |
10 |
10 |
60 |
0.03 |
0.05 |
10 |
20 |
5 |
15 |
50 |
10 |
16 |
80 |
200 |
80 |
200 |
80 |
80 |
200 |
0.1 |
0.2 |
80 |
80 |
70 |
60 |
10 |
60 |
17 |
50 |
200 |
50 |
200 |
50 |
50 |
200 |
0.1 |
0.2 |
50 |
50 |
50 |
60 |
20 |
60 |
18 |
50 |
300 |
50 |
300 |
50 |
50 |
300 |
0.4 |
0.5 |
50 |
50 |
60 |
60 |
30 |
60 |
19 |
30 |
250 |
30 |
250 |
30 |
30 |
250 |
0.05 |
0.02 |
30 |
40 |
55 |
15 |
30 |
45 |
20 |
40 |
150 |
40 |
150 |
40 |
40 |
150 |
0.05 |
0.04 |
40 |
40 |
50 |
30 |
50 |
80 |
21 |
60 |
280 |
60 |
280 |
60 |
60 |
280 |
0.02 |
0.02 |
60 |
60 |
60 |
50 |
10 |
60 |
22 |
20 |
70 |
20 |
80 |
20 |
10 |
80 |
0.03 |
0.02 |
10 |
20 |
10 |
10 |
60 |
30 |
23 |
20 |
190 |
20 |
190 |
20 |
20 |
190 |
0.2 |
0.08 |
20 |
20 |
60 |
30 |
40 |
80 |
24 |
25 |
80 |
25 |
80 |
25 |
25 |
80 |
0.02 |
0.02 |
25 |
20 |
10 |
10 |
65 |
20 |
25 |
30 |
150 |
30 |
150 |
30 |
30 |
150 |
0.04 |
0.03 |
30 |
30 |
40 |
35 |
18 |
19 |