Enhanced Standalone Single-Phase System with an SPFLI with a Resonant Controller

This paper proposes a configuration based on an a PR controller to enhance the power quality of a Single-Phase Five-Level Inverter (SPFLI). A sliding mode control is used to compensate the voltage harmonics and regulate the load supply. The proposed configuration implementing a sliding mode controller, a resonance regulator helps improving the dynamic response of the system and may target any specified voltage harmonics. A battery is interfaced with a combination Buck and Boost converters helps to reduce the nominal battery voltage, balance power, and to regulate the DC bus bar voltage. The proposed configuration is modeled, simulated and implemented experimentally in real-time on an Opal-RT simulator. The performances of the proposed system are analyzed and discussed in the paper.