Dear Mwamba,
I understand that you are new to Simulink and are looking for support in modeling a hybrid system. This system comprises PV, wind turbine, DC to AC inverter, and hydrogen storage (electrolyzer and fuel cell). Additionally, you want to incorporate mathematical modeling into the simulation.
Here is an overview of how you can model each component of your hybrid system using Simulink, along with some mathematical modeling equations.
1. Photovoltaic (PV) System:
- Start by modeling the PV panel. You can use the "Solar Cell" block from the Simulink Library Browser.
- The output power of the PV panel can be calculated using the equation: “P_pv = A * G * η * (1 - Tc * (T - Tref))”, where “A” is the area of the panel, “G” is the solar radiation, “η” is the efficiency, “Tc” is the temperature coefficient, “T” is the panel temperature, and “Tref” is the reference temperature.
- Implement this equation using appropriate blocks in Simulink to calculate the power output of the PV system.
2. Wind Turbine:
- Model the wind turbine using the "Wind Turbine" block from the Simulink Library Browser.
- The power output of the wind turbine can be calculated using the equation: “P_wt = 0.5 * ρ * A * Cp * V^3”, where “ρ” is the air density, “A” is the swept area of the turbine, “Cp” is the power coefficient, and “V” is the wind speed.
- Implement this equation using appropriate blocks in Simulink to calculate the power output of the wind turbine.
3. DC to AC Inverter:
- Model the DC to AC inverter using the "Power Electronics" blocks available in the Simulink Library Browser.
- The inverter converts the DC power from the PV and wind turbine systems into AC power.
- Use appropriate blocks to model the conversion process, including the DC-AC conversion efficiency.
4. Hydrogen Storage System:
- Model the electrolyzer using appropriate blocks available in the Simulink Library Browser.
- The electrolyzer converts excess power from the PV and wind turbine systems into hydrogen gas.
- Use appropriate mathematical equations to model the efficiency and hydrogen production rate of the electrolyzer.
- Model the fuel cell using appropriate blocks available in the Simulink Library Browser.
- The fuel cell converts hydrogen gas into electrical power.
- Use appropriate mathematical equations to model the efficiency and power output of the fuel cell.
Note: Remember to adjust the parameters and equations based on the specific characteristics of the components you are using in your hybrid system.
Please refer to the MathWorks documentation links below for implementing above models:
Hope this helps!
