TY - JOUR ID - 49433 TI - Design, Simulation, Validation and Comparison of New High Step-up Soft Switched Converter for Fuel Cell Energy System JO - Journal of Energy Management and Technology JA - JEMT LA - en SN - AU - Torkaman, Hossein AU - Karami, N. AU - Nezamabadi, Mehdi AD - Faculty of Electrical Engineering, Shahid Beheshti University, A.C., Tehran, Iran. 1658953571. AD - 1Faculty of Electrical Engineering, Shahid Beheshti University, A.C., Tehran, Iran. 1658953571. Y1 - 2017 PY - 2017 VL - 1 IS - 1 SP - 53 EP - 60 KW - Fuel Cell KW - High Step-up Converter KW - Zero Current Switching KW - Zero Voltage Switching KW - Simulation DO - 10.22109/jemt.2017.49433 N2 - Fuel cell energy systems can deliver green energy efficiently without CO2 emissions which are nominated as a substitution choice for the conventional power sources. This paper proposes a new high step-up DC-DC converter which is applicable in distributed energy resources, especially for fuel cell power conditioning systems. The converter contains a bidirectional boost cell with a coupled inductor, two transformers whose secondary sides are connected in series to increase the voltage gain and also a voltage doubler. Leakage inductance of coupled inductor limits the currents of output diodes and results in Zero Current Switching (ZCS) of the diodes. The converter schematic is presented at first and then its analysis results in different modes of operation are given. After that the theoretical formulation of voltage gain are achieved and proved. Finally, simulations results for a 400 W/ 380 V load are presented to validate the claimed characteristics of the proposed converter. UR - https://www.jemat.org/article_49433.html L1 - https://www.jemat.org/article_49433_fd1f6497246a125363df9f4c6fd744d9.pdf ER -