This article proposes the new noninverting buck-boost ac-ac converter, which can minimize the reverse recovery loss by disabling the body diodes of switches and using the external fast recovery diodes for its current freewheeling. In particular, the proposed ac-ac converter takes advantages of metal-oxide semiconductor field effect transistors and external fast recovery diodes to achieve the high efficiency. Also, it has the high reliability without the shoot-through and dead-time considerations in the circuit. Moreover, it can be simply implemented without employing the conventional commutation control. This results in decreasing the control complexity. As its proper application, a new type of dynamic voltage restorer (DVR) based on the proposed noninverting buck-boost converter is described. It enables to solve the voltage sag and swell problems by utilizing both positive and negative gains of converter. Then, the hardware prototype of proposed ac-ac converter and DVR are implemented to verify their practical effectiveness.
|Number of pages||12|
|Journal||IEEE Transactions on Industrial Electronics|
|Publication status||Published - 2021 Oct|
Bibliographical noteFunding Information:
Manuscript received February 20, 2020; revised June 9, 2020 and August 12, 2020; accepted September 15, 2020. Date of publication October 9, 2020; date of current version June 28, 2021. This work was supported by the National Research Foundation grant funded by the Ministry of Science and ICT, South Korea Government under Grant 2020R1A3B2079407. (Corresponding author: Jung-Wook Park.) Usman Ali Khan, Hyoung-Kyu Yang, and Jung-Wook Park are with the Department of Electrical and Electronics Engineering, Yonsei University, Seoul 03722, South Korea (e-mail: firstname.lastname@example.org; email@example.com; firstname.lastname@example.org).
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All Science Journal Classification (ASJC) codes
- Control and Systems Engineering
- Electrical and Electronic Engineering