solar-mppt-simulation/mppt_algorithm.py at main · janani2662/solar-mppt-simulation · GitHub

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"""
mppt_algorithm.py
Perturb & Observe (P&O) MPPT Algorithm.
"""

class PerturbObserveMPPT:
    def __init__(self, step_size=0.5, V_init=15.0):
        self.step_size = step_size
        self.V = V_init
        self.P_prev = 0.0

    def track(self, panel, G, T_celsius):
        P_now = panel.get_power(self.V, G, T_celsius)

        if P_now > self.P_prev:
            self.V = self.V + self.step_size
        else:
            self.step_size = -self.step_size
            self.V = self.V + self.step_size

        self.P_prev = P_now
        return self.V, P_now


if __name__ == "__main__":
    from solar_panel import SolarPanel

    panel = SolarPanel()
    mppt = PerturbObserveMPPT(step_size=0.5, V_init=10.0)

    G = 1000
    T = 25

    print("Step | Voltage(V) | Power(W)")
    for step in range(40):
        V, P = mppt.track(panel, G, T)
        print(f"{step:4} | {V:10.2f} | {P:8.2f}")