| Title |
A Study on the Multi-level PV-PCS Using Cascade 3-Phase Transformer |
| Authors |
김기선(Kim, Ki-Seon) ; 송성근(Song, Sung-Geun) ; 조수억(Cho, Su-Eog) ; 최준호(Choi, Joon-Ho) ; 김광헌(Kim, Kwang-Heon) ; 박성준(Park, Sung-Jun) |
| Keywords |
Multi-level inverter ; Cascade voltage ; THD ; Transformer |
| Abstract |
The study on the multi-level inverter has been increasingly progressing to reduce the switching loss and improve the THD of output current in photovoltaic inverter. Recently, the main topics of multi-level inverter are to reduce the number of devices maintaining the power quality. Therefore, the novel topology was proposed for these problem which is composed of the isolated H-bridge multi-level inverter using the three phase low frequency transformer. The proposed multi-level inverter may not be need for a independent DC power, diode and capacitor. Specially, It has a advantage in generating high voltage source. The proposed approach is verified through simulation and experiment. |