Interleaved Ultra-High Step-Up DC-DC Converters With Extendable Voltage Gains and ZVS Performance
This paper introduces eight novel interleaved non-isolated dc-dc converters with ultra-high step-up and zero voltage switching (ZVS) capabilities for renewable energy systems. To increase the voltage gain, the proposed converters benefit coupled inductors, high-frequency (HF) transformer, and voltag...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2021-01-01
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| Series: | IEEE Access |
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| Online Access: | https://ieeexplore.ieee.org/document/9536493/ |
| _version_ | 1818887245320421376 |
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| author | Parham Mohseni Morteza Dezhbord Md. Rabiul Islam Wei Xu Kashem M. Muttaqi |
| author_facet | Parham Mohseni Morteza Dezhbord Md. Rabiul Islam Wei Xu Kashem M. Muttaqi |
| author_sort | Parham Mohseni |
| collection | DOAJ |
| description | This paper introduces eight novel interleaved non-isolated dc-dc converters with ultra-high step-up and zero voltage switching (ZVS) capabilities for renewable energy systems. To increase the voltage gain, the proposed converters benefit coupled inductors, high-frequency (HF) transformer, and voltage multiplier (VM) techniques. In comparison to other converters, which just benefit coupled inductors or HF transformers, these combinations of the techniques make an additional degree of freedom to achieve high voltage gains (more than 25 without extreme duty cycle). Besides, two active clamp circuits, including two stages of switch-capacitor VM cells, not only increase the voltage gain of the proposed converters but also act as an auxiliary circuit to provide ZVS. Moreover, the stored energy in the leakage inductances is absorbed and passed to the output by the clamp capacitors. The input current ripple is reduced by applying the interleaved technique. The voltage stresses across the power switches are clamped to lower values and can be controlled by the turn ratios of the coupled inductors and the HF transformer. The theoretical performance of the proposed converters is fully explained. Also, the proposed converters are compared with more than twenty latest interleaved high step-up and ultra-high step-up dc-dc converters. Finally, a 1 kW, 20 V/500 V laboratory prototype is built to prove the advantages of the proposed converters. |
| first_indexed | 2024-12-19T16:34:10Z |
| format | Article |
| id | doaj.art-af4fd040f7f74833a9b6ce0d1270e720 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-19T16:34:10Z |
| publishDate | 2021-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-af4fd040f7f74833a9b6ce0d1270e7202022-12-21T20:14:01ZengIEEEIEEE Access2169-35362021-01-01912941712943010.1109/ACCESS.2021.31121629536493Interleaved Ultra-High Step-Up DC-DC Converters With Extendable Voltage Gains and ZVS PerformanceParham Mohseni0https://orcid.org/0000-0001-9747-2108Morteza Dezhbord1https://orcid.org/0000-0001-5297-5828Md. Rabiul Islam2https://orcid.org/0000-0003-3133-9333Wei Xu3https://orcid.org/0000-0002-8073-7285Kashem M. Muttaqi4https://orcid.org/0000-0003-2424-0722School of Electrical, Computer and Telecommunications Engineering, University of Wollongong, Wollongong, NSW, AustraliaFaculty of Electrical and Computer Engineering, University of Tabriz, Tabriz, IranSchool of Electrical, Computer and Telecommunications Engineering, University of Wollongong, Wollongong, NSW, AustraliaState Key Laboratory of Advanced Electromagnetic Engineering and Technology, School of Electrical and Electronic Engineering, Huazhong University of Science and Technology, Wuhan, ChinaSchool of Electrical, Computer and Telecommunications Engineering, University of Wollongong, Wollongong, NSW, AustraliaThis paper introduces eight novel interleaved non-isolated dc-dc converters with ultra-high step-up and zero voltage switching (ZVS) capabilities for renewable energy systems. To increase the voltage gain, the proposed converters benefit coupled inductors, high-frequency (HF) transformer, and voltage multiplier (VM) techniques. In comparison to other converters, which just benefit coupled inductors or HF transformers, these combinations of the techniques make an additional degree of freedom to achieve high voltage gains (more than 25 without extreme duty cycle). Besides, two active clamp circuits, including two stages of switch-capacitor VM cells, not only increase the voltage gain of the proposed converters but also act as an auxiliary circuit to provide ZVS. Moreover, the stored energy in the leakage inductances is absorbed and passed to the output by the clamp capacitors. The input current ripple is reduced by applying the interleaved technique. The voltage stresses across the power switches are clamped to lower values and can be controlled by the turn ratios of the coupled inductors and the HF transformer. The theoretical performance of the proposed converters is fully explained. Also, the proposed converters are compared with more than twenty latest interleaved high step-up and ultra-high step-up dc-dc converters. Finally, a 1 kW, 20 V/500 V laboratory prototype is built to prove the advantages of the proposed converters.https://ieeexplore.ieee.org/document/9536493/Interleaved structureDC-DC converterultra-high step-up converterzero-voltage switching |
| spellingShingle | Parham Mohseni Morteza Dezhbord Md. Rabiul Islam Wei Xu Kashem M. Muttaqi Interleaved Ultra-High Step-Up DC-DC Converters With Extendable Voltage Gains and ZVS Performance IEEE Access Interleaved structure DC-DC converter ultra-high step-up converter zero-voltage switching |
| title | Interleaved Ultra-High Step-Up DC-DC Converters With Extendable Voltage Gains and ZVS Performance |
| title_full | Interleaved Ultra-High Step-Up DC-DC Converters With Extendable Voltage Gains and ZVS Performance |
| title_fullStr | Interleaved Ultra-High Step-Up DC-DC Converters With Extendable Voltage Gains and ZVS Performance |
| title_full_unstemmed | Interleaved Ultra-High Step-Up DC-DC Converters With Extendable Voltage Gains and ZVS Performance |
| title_short | Interleaved Ultra-High Step-Up DC-DC Converters With Extendable Voltage Gains and ZVS Performance |
| title_sort | interleaved ultra high step up dc dc converters with extendable voltage gains and zvs performance |
| topic | Interleaved structure DC-DC converter ultra-high step-up converter zero-voltage switching |
| url | https://ieeexplore.ieee.org/document/9536493/ |
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