Comparative analysis between Integral synergetic control and PI control applied to Dc-Link voltage regulator

To perform the stability and the robustness of the i photovoltaic (PV) grid-connected dc-bus voltage, Nonlinear Synergetic Controller regulation method is proposed in this work. The tracking superiority of the proposed strategy is illustrated in dc-link capacitor voltage regulation with fast transient response and low oscillations and total Harmonic Distortion (THD) Minimizes grid current injection, especially under fluctuating irradiance. The proposed controller was compared to a conventional PI controller using MATLAB/Simulink to validate its effectiveness.