MATLAB_Урок2.pdf

SimPowerSystems

SimPowerSystems ( MATLAB 6.1 - Power System Blockset) - . Simulink SimPowerSystems, MATLAB, , - , - .

SimPowerSystems - , - ( S-), - ( SPS-) . , - - SimPowerSystems, - - Simulink, . , , - . , SimPowerSystems - , , -, MATLAB. - SimPowerSystems Simulink.

SPS- - S-. - - (drag-and-drop -) . , SPS- .1. SPS- ( SimPowerSystems

2.3 ) - , -

, - ( ).

2. (), -. - ( ), - , - Connectors SPS.

3. - Simulink - SimPowerSystems . S- SPS- - , - -.

4. - - Powergui, powerinit.

5. - - (. 1):

ode15s - ( 1 5) ;

ode23s , - , -, ode15s;

ode23t - , ;

ode23tb , - ; - , ode23t.

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MATLAB 2. SimPowerSystems

, . . .

[email protected]

, . SimPowerSystems . 1.

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- - - - (- ). , - ode45 SPS- - - .

SimPowerSystems

MATLAB, - Simulink Library Browser (. 1). Simulink, () , SimPowerSystems + .

. 1 , SimPowerSystems :1. Connectors .2. Electrical Sources -

.3. Elements .4. Extra Library -

.5. Machines .6. Measurements -

.7. Power Electronics -

. ,

Powergui - . -

- - .

(Electrical Sources)

- (. 2).

- (DC Voltage Source)

: - .

( ):Amplitude (V) (). -. Measurments . , Multimeter - Scope. - : None ; Voltage -

. -

, - .

- (AC Voltage Source)

: - .

: Amplitude (V) (). - . Phase (deg) (). - . Frequency (Hz) ().

. Sample time -. - . Measurments - . , - Multimeter Scope. : None ; Voltage -

. -

-.

(AC Current Source)

: - .

: Amplitude () - (). - . Phase (deg) (). - .Frequency (Hz) (). - . Sample time . - - . Measurments - . , - Multimeter Scope. : None ; Current -

.

-.

(Controlled Voltage Source)

-.

: , - .

: Initialize -. - - , . Source type . - . - , . : AC ; DC .

Initial amplitude (V) - ().

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. 1. Simulink SimPowerSystems

. 2. Electrical Sources

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. , -. Phase (deg) (). - , - -. Initial frequency (Hz) (). , - -. Measurements -. , Multimeter - Scope. : None ; Voltage -

. -

-.

(ControlledCurrent Source)

: , - .

: Initialize -. - - , . Source type . - . - , . : AC ; DC .

Initial amplitude () - (). . -, .Phase (deg) (). -, - . Initial frequency (Hz) (). , - . Measurements - . , - Multimeter Scope. : None ; Current -

.

-.

3-PhaseSource - 3-Phase Programmable VoltageSource - - - , , . - , .

(Elements)

- Library:powerlib2/Elements (. 3, - Elements SimPowerSystems) Simulink Library Browser( , - - - ). - , -- , . .

RLC- (Series RLCBranch)

: , - , -.

( - ): Resistance R (Ohms) (). -. - , - -. . Inductance L (H) - (). . - . .Capacitance C (F) (). -. inf(). .Measurements .

, - Multimeter - Scope. - : None ; Branch voltage ; Branch current ; Branch voltage and current

. Multimeter

: Ib ; Ub .

RLC- (Parallel RLCBranch)

: , - , -.

: Resistance R (Ohms) - (). -. inf (-). - . Inductance L (H) (). -. inf (). - - . Capacitance C (F) (). . - - . .Measurements . , -

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. 3. Simulink Library: powerlib2/Elements

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Multimeter - Scope. - : None ; Branch voltage ; Branch current ; Branch voltage and current

. Multimeter

: Ib ; Ub .

, RLC-Series RLC Load RLC- ParallelRLC Load, , -. - . .

(Measurements)

- - Measurements (. 4), - - SimPowerSystems.

(Current Measurement):

, - (). - , - Simulink-.

: Output signal . . , Powergui (Phasorsimulation). - : Magnitude ( ); Complex ; Real-Imag , -

- ;

Magnitude-Angle , - . (Voltage

Measurement)

: . - , - Simulink.

: Output signal - . . , Powergui - (Phasor simulation). : Magnitude ( ); Complex ; Real-Imag , -

- ;

Magnitude-Angle , . (Multimeter)

: SimPowerSystem, - - Measurements - (. 5).

: Available Measurements ( ), -. -, - Measurements( ). - Update, - . Selected Measurements - ( ). -, -

Multimeter. - - ( ): >>

; Up -

; Down -

; Remove

; +/ -

.Output signal . -

. - , - Powergui - (Phasor simulation). - : Magnitude ( ); Complex ; Real-Imag , -

- ;

Magnitude-Angle , - .

- Current Measurement VoltageMeasurement. - , . -, , - .

- SimPowerSystems - . 6 ( - Power Electronics), . 7 (- Machines) . 8 ( Connectors).

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. 4. Measurements

. 5. Multimeter

. 6. Power Electronics

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SimPowerSystems.

SPS-

SPS-. : Simulink LibraryBrowser (. 1) File/New/Model . - .

1. .

: - 10 ; - 2; 20 .

- Simulink, SimPowerSystems - Electrical Sources ( - ). - Electrical Sources(. 2). - - DC Voltage Source (. 9). , -

- RLC- Series RLC Branch( Elements), - Voltage Measurement (Measurements) Display Sinks ( -), Simulink. -, - 1 (. 9).

- Series RLC Branch 1 90. - , Format/RotateBlock (Flip-Block - 180). - , - . - .

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. 7. Machines

. 8. Connectors

)

)

). 9. (), () SPS- ()

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-. - , . , - . - ( ) (. 9)., - . Voltage Measurement , - .

. - Series RLC Branch. - - (. 10). - 10 , 0 inf (), None, Multimeter . Ok, - (. 9). Series RLC Branch 1, .

DC Voltage Source - - ( 10 , . 10). - VoltageMeasurement , Display - Format Short Long. Short. , ode45

, - 10 - 5 (. 9).

2. - RL- - ( ).

: 50 ; RL- - 4 , 0,5 .

, , (. 11), - 50 ( DC VoltageSource), 4 , - 0,5 Series RLC Branch -. - . - Current Measurement, , + - . i - Scope. - , - RL-. - ( ) - . - Series RLCBranch, , .

RL- = L/R = 0,125 , - 0,675 ( 5). - (. 1) - Simulation/Simulation Parametrs. Simulation Parametrs Stop time 1 .

File/Save as DC_Regim_Perechod1, (. 11). powerinit. - (help powerinit). - - powerinit ('DC_Regim_Perechod1','reset'), - 'DC_Re gim_Perechod1' 'reset' . Enter, - . - Scope - (. 11 11). - , . , - (. 1). - , Axes properties (), 'Scope' prop-erties: axis 1 ( ) - - Y.

, powerinit MATLAB - n m, powerimit. - :

??? Undefined function or variable 'powerimit'

( 'powerimit').

, - , :

??? Error using ==> powerinit

Not enough input arguments

( , - ).

- ., -

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)

). 10. RLC- Series RLCBranch () DC Voltage Source ()

)

)

). 11. (), () ()

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Current Measurement Scope. :

Warning: Output port 1 of block 'DC_Regim_Perechod1/Current

Measurement' is not connected.

Warning: Input port 1 of block 'DC_Regim_Perechod1/Scope' is not

connected.

(: / 1 - '' ).

, MATLAB - - . - , -. - . - .

3. - RL- - .

: 100 50 ; 0,15 - 70% 0,02 ( , - ); RL- 0,5 - 0,01 . - Breaker ( - Elements SimPowerSystem).

(. 12) - AC VoltageSource ( . 12), PulseGenerator ( . 12), Breaker ( - . 12). CurrentMeasurement, Scope Series RLC Branch, - . -, Pulse Generator - Sources Simulink.

- , : -, Stop time. - , - . Simulation/Simulation Parametrs Simulation Parametrs. - , ode15s. -, - - 0,15 , Stop time 0,3 . - 0,02 10 , Max step size 0,002 c. - - RL- - Pulse Generator (. 12 12).

Breaker, -- . - -

. , - (. 12) RC--, Snubber.

. (. 12): Breaker resistance

Ron (Ohm)

(). Initial state(0 for 'open',1 for 'closed') - (0 , 1 -). Snubber resistance Rs (Ohm) - (). Snubbercapacitance Cs(F) (). Switching times (s) (). -, - -. , -

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. 12. RL- (), AC_Volage_Source (),Breaker (), Pulse Generator (), () ()

)

)

)

)

)

)

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, - [0.005 0.01 0.02 0.03] -, 0,005 0,02 , - 0,01 0,03 . Sampletime of the internal timer Ts (s) - . External controlof switching times - . . - , , - . Measurements -. : None -

; Branch voltage

; Branch current ; Branch voltage and current

. -

Breaker (. . 12). - - , - RL- , .

4. - RC- - -, .

: 50 - 60 ; 15 ; 0,01 , - 25 , 1 .

- Signal Generator Constant (- Sources) Sum ( MathOperations) Simulink, - ControlledVoltage Source ( Electrical Sources), Parallel RLC Branch (Elements), VoltageMeasurement ( Measurements) - SimPowerSystems, - Scope Mux ( Signal Routing) Simulink. - . 13, - Parallel RLCBranch Controlled VoltageSource. , - - , -, L connector ( Connectors).

- , . 13. - Controlled Voltage Source -

(. 13). SignalGenerator - (square), 50 , 60 (. 13). Mux - Number of inputs 2 - Display option signals, - - , (. 13). Sum - |++.

Stop times 0,08 c, Max step size 0,001 c. - . 13. - - , , - . , , - , -

, .

- Connectors (. 14), - , . 13. - T connector ( . 14 - ), - L connector, - . Neutral (. 14). - (-) , , - , -. .

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)

)

. 13. (), Controlled Voltage Source (),Signal Generator (), Mux () ()

) )

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2:1. SimPowerSystems -

, 7 , - - -;

() -;

; .2. Simulink

SimPowerSystems , , - , -

, .

3. -, - - - (Connectors).

4. SPS- - , -.

5. SPS- - -

- ( ).

6. - - - - .

7. MATLAB - - , , - .

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) ). 14. : T connector (a) Neutral ().

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MATLAB_Урок2.pdf

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