| Title |
An Active Feedforward Compensation for a Current Harmonics Reduction in Three-phase Grid-connected Inverters |
| Authors |
Byong-Jun Park ; Rae-Young Kim ; Ki-Young Choi |
| Keywords |
active feedforward; harmonic compensation; low frequency transformer; low order harmonic; total harmonic distortion (THD); weak grid |
| Abstract |
This paper proposes a current harmonic compensation method for the grid-connected inverter, especially caused by the grid impedance. Grid impedance causes low order harmonics in the grid current and deteriorates power quality. This paper analyzes the negative impact of the grid impedance, and proposes an active feedforward compensation method. Proposing method verified through simulation and experiment with 3-phase 1.5kW voltage source inverter prototype. |