4.
: :
1. - ;
2. -;
3. - .
(. 4.1) .
:
(Three-Phase Source).
(Universal Bridge).
- (R,L).
(I 1) (I Load), (U Load).
(Fourier I1), ( ) (Fourier I0), (Fourier U0).
. 4.1.
() , (Scope).
, Measurement (Multimeter).
(Display), (Display 1), (Display 2).
(Three-Phase Source). . 4.2. (Phase-to-phase rms voltage (V)). , (Phase angle of phase A (Degrees)) , (Frequency, Hz) , (Internal connection), ( ).
. 4.2.
. 4.3.
. 4.3, (Number of bridge arms), (Snubber resistance, Snubber capacitance), (Power Electronic device); (Ron, Ohms), (Lon, H) (Forward voltage, V)
Measurement , Multimeter.
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. 4.4. - R- L-C (Resistance R, Ohms, Inductance L, H) , , (Capacitance C, F) (inf).
Fourier I1 (. 4.5) , , .
. 4.4.
. 4.5. Fourier I 1
Fourier I0, Fourier U0 . () (f =300). (Harmonic n) . = 0.
Display . 4.6. . (Decimation) Display. Sample time . .
. 4.6. Display
Multimeter . 4.7. (Available) , . 4.3. (Selected) , ( >>). .
. 4.7. Multimeter
Ideal Switch . 4.8. Ideal Switch Ron SW. . , (g > 1). (g = 0). Internal Resistance Ron (Ohms) (). Initial state (0 for 'open', 1 for 'closed') : 0 1 . Snubber resistance Rs (Ohm) (). Snubber capacitance Cs (F) (). Show measurement port ( ): m, Simulink- . - , - .
. 4.8. Ideal Switch
Switching system , .
Workspace Matlab 7.0.1 Signal Processing Toolbox . . 4.9.
. 4.9. To Workspace
(Variable name) . (Limit date points to last) , ( ). () , Sample time. 50 ( 0,02). 2-4 100 . , 200 .
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3.
1. - -.
2. (. 4.1) - ( Ideal Switch4 0) 0 120 20 . . 4.1 .
4.1.
-
, | , |
3. - ( ) ( Ideal Switch Ideal Switch 4 1) 0 120 20 . . 4.2 .
4.2.
-
, | , |
4. - - 100 0 20 . ( = 0, 30, 60), - . . 4.3.
4.3
, | E, | U, | I, | I1(1)max, | φ1, | IVS, | IVS, | UVSmax, | IVSmax, | S1(1), | P1(1), | P, |
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5. (. 4.1) ( Ideal Switch 0, Ideal Switch 4 1) 90 110 10 . 200, 300, 400 . . 4.4 .
4.4.
, | E, | U, | I, | I1(1)max, | φ1, | UVSmax, | IVSmax, | S1(1), | P1(1), | P, |
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Display, Display1. , , . , -110 . , .
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6. , , ( ) Signal Processing Toolbox. rev_3f. , . 4.5. , - , , - , .
4.5
() | |||||
1. , :
(), , .
2. , :
(), , .
3. :
,
- , - , , - , , - , . 4.5.
1. ( ).
2. .
3. . 4.3 .
4. ( 4.1, 4.2, 4.4).
5. () ()
6. ( 4.5).
7. .
8. .
1. ?
2. ; ?
3. .
4. . ?
5. . ?
6. -?
7. .
8. , ?
9. - - .
10. I1.