研究目的
To develop a control strategy for a solar plant directly connected to the power grid, using a NPC multi-level inverter, with a combined linear control and predictive control scheme to obtain a low fluctuation of the neutral point and a low distortion in the AC currents.
研究成果
The proposed FFS-MPC has the ability to inject power from a photovoltaic source, with good performance and, specially, with reduced computational effort and concentrated spectrum. It does not have a main cost function unlike the typical predictive controls that evaluates a complex cost function up to 27 times, reducing in 84% the computational effort. The harmonic content of the switching is less dispersed than in the typical predictive control.
研究不足
The need of PWM modules to synthetize the SVM technique, because the SVM is timing sensitive.