TY - JOUR
T1 - Operation and Design Consideration of an Ultra High Step-Up DC-DC Converter featuring High Power Density
AU - Tarzamni, Hadi
AU - Sabahi, Mehran
AU - Rahimpour, Saeed
AU - Lehtonen, Matti
AU - Dehghanian, Payman
N1 - Publisher Copyright:
IEEE
PY - 2021/10/1
Y1 - 2021/10/1
N2 - A new dual-coupled inductor (CI) single-switch high step-up dc-dc topology featuring high power density is proposed in this study. Various capacitive power transfer methods, as well as inductive power transfer techniques, are utilized to act as a more efficient power interface between the input and the load. Three ports in the output terminal are employed to distribute the overall output voltage, diminish the voltage ripple in high-voltage gain ratios, and decrease the voltage stress on the port component. In the proposed converter, first, the voltage gain is high in lower duty cycles of the switching. Second, the stored energy of magnetizing and leakage inductances is recycled in both Cls. Third, the switch voltage spikes are alleviated. Fourth, the operation is done with no circulating current. Fifth, low-size passive components are presented. Sixth, high power density is obtained, and the voltage range is widened. Finally, a simple pulsewidth modulation (PWM) utilizing a wide control range is provided. In this study, the steady-state operation is analyzed under both continuous conduction mode (CCM) and discontinuous conduction mode (DCM), and the performance of the converter is evaluated using comparisons with similar works. In addition, the experimental results have been provided to justify the feasibility of the design.
AB - A new dual-coupled inductor (CI) single-switch high step-up dc-dc topology featuring high power density is proposed in this study. Various capacitive power transfer methods, as well as inductive power transfer techniques, are utilized to act as a more efficient power interface between the input and the load. Three ports in the output terminal are employed to distribute the overall output voltage, diminish the voltage ripple in high-voltage gain ratios, and decrease the voltage stress on the port component. In the proposed converter, first, the voltage gain is high in lower duty cycles of the switching. Second, the stored energy of magnetizing and leakage inductances is recycled in both Cls. Third, the switch voltage spikes are alleviated. Fourth, the operation is done with no circulating current. Fifth, low-size passive components are presented. Sixth, high power density is obtained, and the voltage range is widened. Finally, a simple pulsewidth modulation (PWM) utilizing a wide control range is provided. In this study, the steady-state operation is analyzed under both continuous conduction mode (CCM) and discontinuous conduction mode (DCM), and the performance of the converter is evaluated using comparisons with similar works. In addition, the experimental results have been provided to justify the feasibility of the design.
KW - Capacitors
KW - coupled inductor
KW - DC-DC power conversion
KW - DC-DC power converters
KW - high power density
KW - high step-up converter
KW - High-voltage techniques
KW - Inductance
KW - Inductors
KW - Stress
KW - Switches
UR - http://www.scopus.com/inward/record.url?scp=85104238494&partnerID=8YFLogxK
U2 - 10.1109/JESTPE.2021.3072957
DO - 10.1109/JESTPE.2021.3072957
M3 - Article
AN - SCOPUS:85104238494
VL - 9
SP - 6113
EP - 6123
JO - IEEE Journal of Emerging and Selected Topics in Power Electronics
JF - IEEE Journal of Emerging and Selected Topics in Power Electronics
SN - 2168-6777
IS - 5
ER -