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Analysis, design, and experimental verification of high step-up DC-DC converter to interface renewable energy sources into DC nanogrid
conference contribution
posted on 2023-05-23, 15:17 authored by Waqas HassanWaqas Hassan, Gautum, S, Lu, DD-C, Xiao, WThis paper proposes a new non-isolated, high step-up DC-DC converter to interface renewable sources into DC microgrid. The topology utilizes the coupled inductor and switched capacitor techniques to achieve high step-up voltage conversion ratio. The leakage energy is directly transferred to output to avoid voltage spikes across the switch. The switching devices have relatively low voltage stresses. In addition, the coupled inductor alleviated the reverse recovery problem of the diode. The key features include high efficiency, low voltage stresses, and low component count and cost. The steady-state analysis and operation of the proposed converter are presented in detail. Finally, a 200 W prototype circuit operating at a switching frequency of 100 kHz is built in the laboratory to verify the performance. The experimental results substantiate the theoretical analysis and show a peak efficiency of 96.90%.
History
Publication title
Proceedings of the 2019 IEEE International Conference on Industrial Technology (ICIT)Pagination
1649-1954ISBN
9781538663769Department/School
School of EngineeringPublisher
IEEE-Inst Electrical Electronics Engineers IncPlace of publication
New Jersey, USAEvent title
2019 IEEE International Conference on Industrial Technology (ICIT)Event Venue
MelbourneDate of Event (Start Date)
2019-02-13Date of Event (End Date)
2019-02-15Rights statement
Copyright 2019 IEEERepository Status
- Restricted