| Title |
A Study on Filter Efficiency Analysis and Harmonic Reduction of Single Phase NPC Multi-Level Inverter with LC-Trap Filter |
| Authors |
김수홍(Kim Soo-Hong) ; 서강문(Seo Kang-Moon) ; 김윤호(Kim Yoon-Ho) |
| Keywords |
LC-Trap Filter ; LCR Filter ; NPC Multilevel Inverter |
| Abstract |
This paper presents a method about the efficiency analysis and the harmonic reduction of single phase NPC multi-level inverter with LC-trap filter and LCR output filter. The proposed LC-trap filter is comprised of a conventional LC output filter, by using LC-trap filter the need for high damping resistor and low LC cut-off frequency is eliminated. Also, low damping resistor is increased the efficiency of the output filter. Experimental verification of the proposed circuit is provided with single phase NPC multilevel inverter system and DSP controller. |