TY - GEN
T1 - A novel high step-up DC-DC converter with zero DC bias current coupled-inductor for microgrid system
AU - Yeh, Chia Hua
AU - Hsieh, Vi Ping
AU - Chen, Jiann-Fuh
PY - 2013/1/1
Y1 - 2013/1/1
N2 - A novel high step-up DC-DC converter for distributed generation (DG) system is proposed in this paper. The concept is composed of three capacitors, three diodes, one inputinductor and one coupled-inductor. By utilizing the leakage inductor energy to charge capacitor, and convert energy by the coupled-inductor, high step-up voltage gain and high efficiency can be achieved with an appropriate duty ratio. The voltage stresses on the main switch and output diode are reduced by a passive clamp circuit. Therefore, low resistance R DS(ON) for the main switch can be adopted to reduce conduction loss. In addition, the reverse-recovery problem of the diode is alleviated, and thus, the efficiency can be further improved. The operating principle and steady-state analysis of the voltage gain are also discussed in detail. Finally, a 24-V input voltage, 400-V output voltage, and 200-W output power prototype circuit of the proposed converter is implemented in the laboratory to verify the performance.
AB - A novel high step-up DC-DC converter for distributed generation (DG) system is proposed in this paper. The concept is composed of three capacitors, three diodes, one inputinductor and one coupled-inductor. By utilizing the leakage inductor energy to charge capacitor, and convert energy by the coupled-inductor, high step-up voltage gain and high efficiency can be achieved with an appropriate duty ratio. The voltage stresses on the main switch and output diode are reduced by a passive clamp circuit. Therefore, low resistance R DS(ON) for the main switch can be adopted to reduce conduction loss. In addition, the reverse-recovery problem of the diode is alleviated, and thus, the efficiency can be further improved. The operating principle and steady-state analysis of the voltage gain are also discussed in detail. Finally, a 24-V input voltage, 400-V output voltage, and 200-W output power prototype circuit of the proposed converter is implemented in the laboratory to verify the performance.
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M3 - Conference contribution
AN - SCOPUS:84903128240
SN - 9781479900718
T3 - 1st International Future Energy Electronics Conference, IFEEC 2013
SP - 388
EP - 394
BT - 1st International Future Energy Electronics Conference, IFEEC 2013
PB - IEEE Computer Society
T2 - 1st International Future Energy Electronics Conference, IFEEC 2013
Y2 - 3 November 2013 through 6 November 2013
ER -