Searched for: subject%3A%22ZVS%22
(1 - 17 of 17)
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Yu, G. (author), Yadav, S. (author), Dong, J. (author), Bauer, P. (author)
Triangular current mode (TCM) zero-voltage switching (ZVS) modulation method is widely adopted in power electronic converters to achieve acceptable efficiency in high switching frequency operations. For bidirectional dc-dc converters, in order to realize ZVS turn-on, a reverse inductor current can be utilized for this purpose through variable...
journal article 2024
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Zhou, Xiaochuan (author)
Rural electrification remains a significant challenge for engineers, given its intricate relationship with multiple issues, including geographical constraints and underdeveloped infrastructural provisions. As a result, with the development of Solar Home Systems (SHS) and direct current (DC) microgrids, DC systems for energy access have emerged...
master thesis 2023
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Wu, Y. (author), Qin, Z. (author), Soeiro, Thiago B. (author), Bauer, P. (author)
The sinusoidal Triangular-Current-Mode (S-TCM) method has been proposed in the AC/DC power-factor-correction (PFC) converter to achieve the zero-voltage-switching (ZVS) which can lead to both, high efficiency operation and a high power density design. Nevertheless, the necessary wide range variation of the sinusoidal switching frequency...
conference paper 2023
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Yu, G. (author), Dong, J. (author), Soeiro, Thiago B. (author), Bauer, P. (author)
This paper introduces variable-frequency zero voltage switching (ZVS) modulation strategy for the four-switch buck+boost converter with one operating pattern for the inductor current, i.e., three-segment inductor current modulation control. The proposed modulation scheme guarantees a smooth transition from step-up to step-down or from step-down...
conference paper 2023
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Lyu, D. (author), Straathof, C.A. (author), Soeiro, Thiago B. (author), Qin, Z. (author), Bauer, P. (author)
This paper proposes two modulation schemes for Dual Active Bridge (DAB) converters, with the aim of maximizing Zero Voltage Switching (ZVS) operation over a wide operational range. The first is a ZVS-optimized constant frequency modulation scheme, constructed based on the boundary conditions of ZVS operation. This scheme maximizes the number...
journal article 2023
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Ye, Pengcheng (author)
The compensation network in wireless power transfer (WPT) system has many functions, including increasing efficiency, providing constant voltage/current output, reducing volt-ampere rating, etc. With the popularity of wireless charging for electric vehicles, more and more compensation topologies with distinctive characteristics are proposed....
master thesis 2022
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Straathof, Coen (author)
In this thesis two new modulation methods are proposed for a wide output voltage range dualactive bridge (DAB) converter for bidirectional EV charging application. The objective of theproposed modulation method is to maximize the number of ZVS events over the operating range,while maintaining low current stress. The first modulation method...
master thesis 2022
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Yu, G. (author), Dong, J. (author), Soeiro, Thiago B. (author), Zhu, G. (author), Yao, Y. (author), Bauer, P. (author)
This article introduces a three-mode variable-frequency zero-voltage switching (ZVS) modulation method for the four-switch buck+boost converter. This method makes this circuit concept well suited for applications, such as wireless power charging of electric vehicles, where this circuit operates as a power buffer between the resonant converter...
journal article 2022
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Zhu, G. (author), Dong, J. (author), Shi, W. (author), Soeiro, Thiago B. (author), Xu, J. (author), Bauer, P. (author)
This article proposes a mode-switching-based phase shift control (MS-PSC) for wireless power transfer (WPT) systems, which is able to achieve power regulation, load matching, and wide ZVS operations simultaneously without using additional dc-dc converters. Based on the mode transitions between the full-bridge, mixed-bridge, and half-bridge...
journal article 2022
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Xu, J. (author), Soeiro, Thiago B. (author), Wang, Yong (author), Gao, Fei (author), Tang, Houjun (author), Bauer, P. (author)
Two-stage AC-DC converters are considered as a prominent solution for DC-type electric vehicle (EV) chargers. However, this kind of architecture suffers from high switching losses with large heatsink and DC-link capacitor volume. To relieve this issue, this paper presents a new hybrid modulation for DC-type EV chargers, where a two-phase...
journal article 2022
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XIANG, Jingchun (author)
Fast charging technology has accelerated the growth of the electric vehicle(EV) market and attracted significant attention from the industry. Two-stage AC/DC converter system is one of the traditional fast-charging architectures consists of the front-end converter and back-end converter. Numerous researches have developed IGBT-based medium...
master thesis 2020
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Purgat, P. (author), Bandyopadhyay, S. (author), Qin, Z. (author), Bauer, P. (author)
Triple active bridge (TAB) as an isolated multiport converter is a promising integrated energy system for smart grids or electric vehicles. This article aims to derive and analyze zero voltage switching (ZVS) regions of TAB, in which both switching losses are reduced, and electromagnetic interference issues are mitigated. In the proposed...
journal article 2020
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Grazian, F. (author), van Duijsen, P.J. (author), Soeiro, Thiago B. (author), Bauer, P. (author)
In charging applications, wireless power transfer (WPT) is mostly used in the form of inductive power transfer with magnetic resonant coupling. Therefore, both the transmitter and the receiver coils are combined with capacitors, such that only active power is transferred. To evaluate the operation of the WPT charging system, its equivalent...
conference paper 2019
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Sakkas, Sotiris (author)
The growth of distributed Renewable Energy share in the total electricity production as wells as technological advancements in power electronics and increase of DC loads, point towards the development of the DC microgrid (DCMG) concept as a valid model for future energy systems especially for operations and locations where the existing grid...
master thesis 2018
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Li, Ruyu (author)
A driver with high power factor, high efficiency and safety isolation are more attractive in the lighting application. Flyback is an ideal choice to be the power factor stage in LED driver. But one of the most difficulty in flyback topology is the energy stored in its leakage inductance. This part of the energy will introduce very high voltage...
master thesis 2017
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Channoullis, G. (author)
Double degree: MSc in Applied Sciences (SET) and MSc Thesis in EWI Faculty / Department DC systems, Energy conversion & Storage - - Wireless Power transfer is an innovative topic for electric vehicle charging, that has a very promising market implementation curve in the future. Many companies have shown interest in this topic while it consists a...
master thesis 2016
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Van Kessel, C.L. (author)
Studies performed in the last decade have shown that wave energy could contribute as much as 10% in the current world electricity demand, making the ocean one of the most underrated and unexploited renewable sources so far. Wave energy offers distinctive advantages compared to other renewable technologies, providing a constant and predictable...
master thesis 2010
Searched for: subject%3A%22ZVS%22
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