Fuzzy Based Control Approach For Three-Phase Single-Stage Grid-Connected Boost Inverter

In this paper, a novel control method based on fuzzy logic is developed to control the active and reactive power of a three-phase current source boost inverter. The proposed procedure utilizes the SVPWM switching pattern for its advantages of simple implementation and decent DC-bus utilization. Additionally, by controlling the current source inverter, it is capable of boosting the low DC voltage to a higher level in just one stage. In previous studies, the controller could not respond efficiently and accurately to simultaneous active and reactive power step changes. Using the proposed technique, both the active and reactive power can be changed at the same time which will have a better system response under fault conditions. The simulation analysis of the proposed control technique is conducted using MATLAB and shows that the proposed controller is able to track the active and reactive power accurately while they change simultaneously. As a result, the system is more robust under fault conditions compared with traditional control approaches.