Simulation of an ionistor system
This example will demonstrate a simulation of a system with an ionistor and a DC-DC converter designed to maintain a stable voltage across the load. Initially, the converter provides power to the load, which leads to a gradual decrease in voltage across the ionistor. When the 4 V threshold is reached, the protection circuit is activated, disabling the load. At 10 seconds, the generator turns on, and power is supplied to both the load and the capacitor to recharge it.
Model diagram:
Defining the function to load and run the model:
function start_model_engee()
try
engee.close("ultracapacitor_converter", force=true) # закрытие модели
catch err # в случае, если нет модели, которую нужно закрыть и engee.close() не выполняется, то будет выполнена её загрузка после catch
m = engee.load("$(@__DIR__)/ultracapacitor_converter.engee") # загрузка модели
end;
try
engee.run(m, verbose=true) # запуск модели
catch err # в случае, если модель не загружена и engee.run() не выполняется, то будут выполнены две нижние строки после catch
m = engee.load("$(@__DIR__)/ultracapacitor_converter.engee") # загрузка модели
engee.run(m, verbose=true) # запуск модели
end
end
Running the simulation
start_model_engee();
Writing simulation data to variables:
t = simout["Load.i"].time[:]
load_current = simout["Load.i"].value[:]
ultracapacitor_current = simout["Ultra-capacitor.i"].value[:]
generator_current = simout["Generator/Diode.i"].value[:]
load_voltage = simout["Load.v"].value[:]
ultracapacitor_voltage = simout["Ultra-capacitor.v"].value[:]
Data visualization
using Plots
plot(t, load_voltage, linewidth=2, label="Нагрузка")
plot!(t, ultracapacitor_voltage, linewidth=2, label="Ионистор", xlabel="Время, с", ylabel="Напражение, В")
plot(t, load_current, linewidth=2, label="Нагрузка")
plot!(t, ultracapacitor_current, linewidth=2, label="Ионистор")
plot!(t, generator_current, linewidth=2, label="Генератор", xlabel="Время, с", ylabel="Ток, А")
Conclusions:
In this example, we have considered the model of an ionistor with a converter. The DC-DC converter provides power to the load. The low charge protection circuit turns off the load when the voltage across the ionistor drops below 4 V. At the 10th second, the generator turns on, which begins to power the load and charge the ionistor.