This technology relates to a harmonic compensation apparatus and method for a single-phase grid-connected inverter. Specifically, it is a single-phase grid-connected inverter harmonic compensation technology combining PI·PR control.
Conventional technologies needed to address the complexity of designing controllers to eliminate harmonics in a stationary reference frame and improve the power factor in grid-connected power systems. Accordingly, this technology proposes a configuration that includes a filtering unit, a current controller, harmonic compensation, and a pulse width modulation unit for a single-phase system interconnected inverter.
As a result, this technology can improve the output quality of a single-phase system interconnected inverter by reducing the Total Harmonic Distortion (THD) value. It has practical value in the fields of electricity, power generation, and energy.
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