| Title |
Optimized Topology and LCL Filter Design of Utility-interactive PCS for MCFC Generation |
| Authors |
Hyung-Jin Kim ; Jun-Sung Park ; Young-Woo Kim ; Se-Wan Choi ; Tae-Hee Kim ; 李Gi-Pung Lee ; 李Tae-Won Lee |
| DOI |
10.6113/TKPE/2011.16.4.405 |
| Keywords |
MCFC; Fuel cell generation system; Power conversion system(PCS); LCL filter; Interleaving; Utility-interactive inverter |
| Abstract |
Recently, the development of several hundreds of kW scale PCS for fuel cell generation is required as commercialization process of distributed generation systems using high temperature fuel cells such as MCFC begins. This paper proposes and optimized topology suitable for MCFC fuel cell generation system and LCL filter design method considering voltage quality of local loads such as MBOP. An interleaving technique is applied to step-up DC-DC converter, optimized number of phases is determined considering efficiency and volume. Also, a LCL filter design method is proposed considering quality of current injected to the grid as well as that of voltage across the local load. The proposed PCS system is validated through reduced 1㎾ prototype. |