Лабораторная работа № 1
Цель работы: Выявить влияние баланса мощностей между синхронным генератором и активной нагрузкой на частоту тока в системе электроснабжения.
Ход работы:
Задание 1. Исследовать имитационную модель системы электроснабжения, состоящую из генератора, трансформатора, трех элементов нагрузки и выключателя, построенную с использованием дополнительной библиотеки - SimPowerSystem.
1.1. Промоделировать электрическую схему рис.1 в приложении Simulink пакета программ Matlab изменяя параметры элементов схемы (взять из столбца А согласно варианту).
1.2. Измерить параметры указанные в вашем варианте (столбец B).
1.3. Представить результат моделирования в следующем виде:
— рисунок(снимок экрана) модели с добавленными измерительными блоками;
— временные диаграммы указанных в вашем варианте (столбец B) параметров.
Примечание: время моделирования принять равным 10с., максимальный шаг расчета установить равным 0.001 с., метод расчета - с переменным шагом ode23tb.
Рис.1.
Варианты заданий на лабораторную работу:
1 задание.
1 вариант
|
А
| В
|
P(pu):
Constant value: 0.7, 0.525, 0.4
Load 1
Nominal voltage Vn (Vrms): 10000 Nominal Frequency (Hz):50
Active power P (МW): 5 Inductive reactive power QL: 0
Capacitive reactive power Qc : 0
Load 2
Nominal voltage Vn (Vrms): 230000 Nominal Frequency (Hz):50
Active power P (МW): 100 Inductive reactive power QL: 0
Capacitive reactive power Qc : 0
Load 3
Nominal voltage Vn (Vrms): 230000 Nominal Frequency (Hz):50
Active power P (МW): 50 Inductive reactive power QL: 0
Capacitive reactive power Qc : 0
Three-Phase Breaker
Transition times (s): 5
Initial status of breakers: open
| Speed (pu)
Vf (pu)
Va (pu)
Va (V)
f (Hz)
P (pu)
|
2 вариант
|
А
| В
|
P(pu):
Constant value: 0.45
Load 1
Nominal voltage Vn (Vrms): 10000 Nominal Frequency (Hz):50
Active power P (МW): 10 Inductive reactive power QL: 0
Capacitive reactive power Qc : 0
Load 2
Nominal voltage Vn (Vrms): 230000 Nominal Frequency (Hz):50
Active power P (МW): 80 Inductive reactive power QL: 0
Capacitive reactive power Qc : 0
Load 3
Nominal voltage Vn (Vrms): 230000 Nominal Frequency (Hz):50
Active power P (МW): 30, 50, 70 Inductive reactive power QL: 0
Capacitive reactive power Qc : 0
Three-Phase Breaker
Transition times (s): 5
Initial status of breakers: open
| Speed (pu)
Vf (pu)
Va (pu)
Va (V)
f (Hz)
P (pu)
|
3 вариант
|
А
| В
|
P(pu):
Constant value: 0.425
Load 1
Nominal voltage Vn (Vrms): 10000 Nominal Frequency (Hz):50
Active power P (МW): 5 Inductive reactive power QL: 0
Capacitive reactive power Qc : 0
Load 2
Nominal voltage Vn (Vrms): 230000 Nominal Frequency (Hz):50
Active power P (МW): 80 Inductive reactive power QL: 0
Capacitive reactive power Qc : 0
Load 3
Nominal voltage Vn (Vrms): 230000 Nominal Frequency (Hz):50
Active power P (МW): 50 Inductive reactive power QL: 0
Capacitive reactive power Qc : 0
Three-Phase Breaker
Transition times (s): 5
Initial status of breakers: open, closed
| Speed (pu)
Vf (pu)
Va (pu)
Va (V)
f (Hz)
P (pu)
|
4 вариант
|
А
| В
|
P(pu):
Constant value: 0.717, 0.625, 0.5
Load 1
Nominal voltage Vn (Vrms): 10000 Nominal Frequency (Hz):50
Active power P (МW): 5 Inductive reactive power QL: 0
Capacitive reactive power Qc : 0
Load 2
Nominal voltage Vn (Vrms): 230000 Nominal Frequency (Hz):50
Active power P (МW): 120 Inductive reactive power QL: 0
Capacitive reactive power Qc : 0
Load 3
Nominal voltage Vn (Vrms): 230000 Nominal Frequency (Hz):50
Active power P (МW): 20 Inductive reactive power QL: 0
Capacitive reactive power Qc : 0
Three-Phase Breaker
Transition times (s): 4
Initial status of breakers: open
| Speed (pu)
Vf (pu)
Va (pu)
Va (V)
f (Hz)
P (pu)
|
5 вариант
|
А
| В
|
P(pu):
Constant value: 0.717
Load 1
Nominal voltage Vn (Vrms): 10000 Nominal Frequency (Hz):50
Active power P (МW): 5 Inductive reactive power QL: 0
Capacitive reactive power Qc : 0
Load 2
Nominal voltage Vn (Vrms): 230000 Nominal Frequency (Hz):50
Active power P (МW): 140 Inductive reactive power QL: 0
Capacitive reactive power Qc : 0
Load 3
Nominal voltage Vn (Vrms): 230000 Nominal Frequency (Hz):50
Active power P (МW): 30, 50, 70 Inductive reactive power QL: 0
Capacitive reactive power Qc : 0
Three-Phase Breaker
Transition times (s): 6
Initial status of breakers: open
| Speed (pu)
Vf (pu)
Va (pu)
Va (V)
f (Hz)
P (pu)
|
6 вариант
|
А
| В
|
P(pu):
Constant value: 0.717
Load 1
Nominal voltage Vn (Vrms): 10000 Nominal Frequency (Hz):50
Active power P (МW): 5 Inductive reactive power QL: 0
Capacitive reactive power Qc : 0
Load 2
Nominal voltage Vn (Vrms): 230000 Nominal Frequency (Hz):50
Active power P (МW): 140 Inductive reactive power QL: 0
Capacitive reactive power Qc : 0
Load 3
Nominal voltage Vn (Vrms): 230000 Nominal Frequency (Hz):50
Active power P (МW): 50 Inductive reactive power QL: 0
Capacitive reactive power Qc : 0
Three-Phase Breaker
Transition times (s): 4
Initial status of breakers: open, closed
| Speed (pu)
Vf (pu)
Va (pu)
Va (V)
f (Hz)
P (pu)
|
7 вариант
|
А
| В
|
P(pu):
Constant value: 0.624, 0.524, 0.424
Load 1
Nominal voltage Vn (Vrms): 10000 Nominal Frequency (Hz):50
Active power P (МW): 5 Inductive reactive power QL: 0
Capacitive reactive power Qc : 0
Load 2
Nominal voltage Vn (Vrms): 230000 Nominal Frequency (Hz):50
Active power P (МW): 100 Inductive reactive power QL: 0
Capacitive reactive power Qc : 0
Load 3
Nominal voltage Vn (Vrms): 230000 Nominal Frequency (Hz):50
Active power P (МW): 25 Inductive reactive power QL: 0
Capacitive reactive power Qc : 0
Three-Phase Breaker
Transition times (s): 7
Initial status of breakers: closed
| Speed (pu)
Vf (pu)
Va (pu)
Va (V)
f (Hz)
P (pu)
|
8 вариант
|
А
| В
|
P(pu):
Constant value: 0.813
Load 1
Nominal voltage Vn (Vrms): 10000 Nominal Frequency (Hz):50
Active power P (МW): 5 Inductive reactive power QL: 0
Capacitive reactive power Qc : 0
Load 2
Nominal voltage Vn (Vrms): 230000 Nominal Frequency (Hz):50
Active power P (МW): 60 Inductive reactive power QL: 0
Capacitive reactive power Qc : 0
Load 3
Nominal voltage Vn (Vrms): 230000 Nominal Frequency (Hz):50
Active power P (МW): 80, 100, 120 Inductive reactive power QL: 0
Capacitive reactive power Qc : 0
Three-Phase Breaker
Transition times (s): 4
Initial status of breakers: closed
| Speed (pu)
Vf (pu)
Va (pu)
Va (V)
f (Hz)
P (pu)
|
9 вариант
|
А
| В
|
P(pu):
Constant value: 0.6, 0.4, 0.325
Load 1
Nominal voltage Vn (Vrms): 10000 Nominal Frequency (Hz):50
Active power P (МW): 5 Inductive reactive power QL: 0
Capacitive reactive power Qc : 0
Load 2
Nominal voltage Vn (Vrms): 230000 Nominal Frequency (Hz):50
Active power P (МW): 60 Inductive reactive power QL: 0
Capacitive reactive power Qc : 0
Load 3
Nominal voltage Vn (Vrms): 230000 Nominal Frequency (Hz):50
Active power P (МW): 50 Inductive reactive power QL: 0
Capacitive reactive power Qc : 0
Three-Phase Breaker
Transition times (s): 4
Initial status of breakers: open
| Speed (pu)
Vf (pu)
Va (pu)
Va (V)
f (Hz)
P (pu)
|
10 вариант
|
А
| В
|
P(pu):
Constant value: 0.525
Load 1
Nominal voltage Vn (Vrms): 10000 Nominal Frequency (Hz):50
Active power P (МW): 5 Inductive reactive power QL: 0
Capacitive reactive power Qc : 0
Load 2
Nominal voltage Vn (Vrms): 230000 Nominal Frequency (Hz):50
Active power P (МW): 100 Inductive reactive power QL: 0
Capacitive reactive power Qc : 0
Load 3
Nominal voltage Vn (Vrms): 230000 Nominal Frequency (Hz):50
Active power P (МW): 50 Inductive reactive power QL: 0
Capacitive reactive power Qc : 0
Three-Phase Breaker
Transition times (s): 7
Initial status of breakers: open, closed
| Speed (pu)
Vf (pu)
Va (pu)
Va (V)
f (Hz)
P (pu)
|