A New Cuk-Based DC-DC Converter with Improved Efficiency and Lower Rated Voltage of Coupling Capacitor
DC-DC converters play a crucial role in recent and advanced applications, enabling efficient power conversion and management for renewable energy systems, electric vehicles, portable devices, and advanced communication systems. In line with this, the objective of this paper is to introduce a new DC-...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Published: |
MDPI
2024
|
| Subjects: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| id |
my.uniten.dspace-34144 |
|---|---|
| record_format |
dspace |
| spelling |
my.uniten.dspace-341442024-10-14T11:18:08Z A New Cuk-Based DC-DC Converter with Improved Efficiency and Lower Rated Voltage of Coupling Capacitor Mahafzah K.A. Al-Shetwi A.Q. Hannan M.A. Babu T.S. Nwulu N. 55617148900 57004922700 7103014445 56267551500 37089355100 continuous current mode Cuk converter DC-DC converters electric vehicles hybrid systems inverted output voltage Mahafzah converter non-isolated converters alternative energy communication electric vehicle energy efficiency experimental study manufacturing DC-DC converters play a crucial role in recent and advanced applications, enabling efficient power conversion and management for renewable energy systems, electric vehicles, portable devices, and advanced communication systems. In line with this, the objective of this paper is to introduce a new DC-DC configuration based on the Cuk converter named as Mahafzah converter, which utilizes a coupling capacitor with a lower rated voltage. The paper aims to demonstrate the effectiveness of the proposed converter in terms of improved efficiency, reduced size, and reduced semiconductor device currents compared to the conventional Cuk converter. The proposed configuration comprises the same components as the Cuk converter, but in a different arrangement, without any additional elements. The main advantage of the proposed converter is using a coupling capacitor with a much lower rated voltage than the Cuk converter, resulting in a smaller capacitor size, reduced printed circuit board (PCB) size, and manufacturing cost. Additionally, the proposed converter reduces the currents of the semiconductor devices compared to those in the Cuk converter. To demonstrate its effectiveness, the converter is operated under continuous current mode (CCM) with a constant duty cycle and switching frequency. The study provides an in-depth discussion of the various operating modes by making use of equations relating to currents, voltages, duty cycles, and voltage gains. It also provides detailed illustrations of the limits between CCM and discontinuous current mode (DCM). The effectiveness of the proposed converter is demonstrated through a design example with operating parameters of 1 kW, 200 V/?300 V, and 20 kHz. Additionally, a low voltage�low power prototype (12/?18 V, 3.24 W, 20 kHz) is established to verify the operation of the proposed converter. Simulation and experimental verification of the proposed configuration achieved the desired results to improve efficiency and reduce the rate. The results clearly indicate that the efficiency of the proposed converter surpasses that of the conventional Cuk converter under identical operating conditions, reaching approximately 88% at rated load conditions. � 2023 by the authors. Final 2024-10-14T03:18:08Z 2024-10-14T03:18:08Z 2023 Article 10.3390/su15118515 2-s2.0-85161524017 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85161524017&doi=10.3390%2fsu15118515&partnerID=40&md5=4bc46016757cf1aaeb2f353a1c901cfe https://irepository.uniten.edu.my/handle/123456789/34144 15 11 8515 All Open Access Gold Open Access MDPI Scopus |
| institution |
Universiti Tenaga Nasional |
| building |
UNITEN Library |
| collection |
Institutional Repository |
| continent |
Asia |
| country |
Malaysia |
| content_provider |
Universiti Tenaga Nasional |
| content_source |
UNITEN Institutional Repository |
| url_provider |
http://dspace.uniten.edu.my/ |
| topic |
continuous current mode Cuk converter DC-DC converters electric vehicles hybrid systems inverted output voltage Mahafzah converter non-isolated converters alternative energy communication electric vehicle energy efficiency experimental study manufacturing |
| spellingShingle |
continuous current mode Cuk converter DC-DC converters electric vehicles hybrid systems inverted output voltage Mahafzah converter non-isolated converters alternative energy communication electric vehicle energy efficiency experimental study manufacturing Mahafzah K.A. Al-Shetwi A.Q. Hannan M.A. Babu T.S. Nwulu N. A New Cuk-Based DC-DC Converter with Improved Efficiency and Lower Rated Voltage of Coupling Capacitor |
| description |
DC-DC converters play a crucial role in recent and advanced applications, enabling efficient power conversion and management for renewable energy systems, electric vehicles, portable devices, and advanced communication systems. In line with this, the objective of this paper is to introduce a new DC-DC configuration based on the Cuk converter named as Mahafzah converter, which utilizes a coupling capacitor with a lower rated voltage. The paper aims to demonstrate the effectiveness of the proposed converter in terms of improved efficiency, reduced size, and reduced semiconductor device currents compared to the conventional Cuk converter. The proposed configuration comprises the same components as the Cuk converter, but in a different arrangement, without any additional elements. The main advantage of the proposed converter is using a coupling capacitor with a much lower rated voltage than the Cuk converter, resulting in a smaller capacitor size, reduced printed circuit board (PCB) size, and manufacturing cost. Additionally, the proposed converter reduces the currents of the semiconductor devices compared to those in the Cuk converter. To demonstrate its effectiveness, the converter is operated under continuous current mode (CCM) with a constant duty cycle and switching frequency. The study provides an in-depth discussion of the various operating modes by making use of equations relating to currents, voltages, duty cycles, and voltage gains. It also provides detailed illustrations of the limits between CCM and discontinuous current mode (DCM). The effectiveness of the proposed converter is demonstrated through a design example with operating parameters of 1 kW, 200 V/?300 V, and 20 kHz. Additionally, a low voltage�low power prototype (12/?18 V, 3.24 W, 20 kHz) is established to verify the operation of the proposed converter. Simulation and experimental verification of the proposed configuration achieved the desired results to improve efficiency and reduce the rate. The results clearly indicate that the efficiency of the proposed converter surpasses that of the conventional Cuk converter under identical operating conditions, reaching approximately 88% at rated load conditions. � 2023 by the authors. |
| author2 |
55617148900 |
| author_facet |
55617148900 Mahafzah K.A. Al-Shetwi A.Q. Hannan M.A. Babu T.S. Nwulu N. |
| format |
Article |
| author |
Mahafzah K.A. Al-Shetwi A.Q. Hannan M.A. Babu T.S. Nwulu N. |
| author_sort |
Mahafzah K.A. |
| title |
A New Cuk-Based DC-DC Converter with Improved Efficiency and Lower Rated Voltage of Coupling Capacitor |
| title_short |
A New Cuk-Based DC-DC Converter with Improved Efficiency and Lower Rated Voltage of Coupling Capacitor |
| title_full |
A New Cuk-Based DC-DC Converter with Improved Efficiency and Lower Rated Voltage of Coupling Capacitor |
| title_fullStr |
A New Cuk-Based DC-DC Converter with Improved Efficiency and Lower Rated Voltage of Coupling Capacitor |
| title_full_unstemmed |
A New Cuk-Based DC-DC Converter with Improved Efficiency and Lower Rated Voltage of Coupling Capacitor |
| title_sort |
new cuk-based dc-dc converter with improved efficiency and lower rated voltage of coupling capacitor |
| publisher |
MDPI |
| publishDate |
2024 |
| _version_ |
1814061106211061760 |
| score |
13.222552 |