MPPT control of photovoltaic power generation system based on LESO estimation error compensation

In order to ensure that photovoltaic power generation systems can quickly reach the maximum power point and operate smoothly, this paper designs a maximum power point tracking (MPPT) controller based on estimation error compensation of linear extended state observer (LESO). The purpose of improving the structure of first order linear active disturbance rejection control (LADRC) is to eliminate the estimation error of LESO in LADRC. By adding an estimation error compensation term to the traditional control law, the overshoot of the system is reduced, the response speed is increased, the anti-interference performance is enhanced, and the utilization rate of optical energy is improved.