Влияние баланса мощностей СЭС на частоту

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)