In order to improve the efficiency and stability of photovoltaic power generation systems
a maximum power point tracking (MPPT) control algorithm based on the characteristic curve is proposed. This method can accurately control and locate the maximum power point of the system by collecting characteristic curve data in real time
and avoids the system stability problem caused by frequently adjusting the duty cycle. The dual BOOST converter topology is adopted
where the main circuit and characteristic curve acquisition circuit cooperate with each other to ensure that the system always operates at the maximum power point. Through theoretical derivation and in-depth analysis of the working principle
the key parameters of the dual BOOST circuit are designed. The circuit modeling
simulation
and analysis are performed using Matlab/Simulink
and the MPPT algorithm for a 16 kW photovoltaic power generation system is verified through hardware-in-the-loop (HIL) simulation. The experimental results show that this method can quickly and accurately locate the maximum power point
with minimal impact on the system and load
effectively improving system efficiency and stability.
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