期刊
IEEE TRANSACTIONS ON TRANSPORTATION ELECTRIFICATION
卷 7, 期 3, 页码 1016-1030出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TTE.2021.3062443
关键词
DH-HEMTs; Bridge circuits; Transportation; Inductors; Voltage control; Two dimensional displays; Switches; Average modeling; dual-half-bridge (DHB); duty cycle; generic operation; minimum rms current; phase shift
资金
- National Key Research and Development Program of Strategic-International Cooperation in S&T Innovation of China [2020YFE0200400]
This article presents the average modeling of a dual-half-bridge dc-dc converter and its working modes, control scheme, and operation rule, with experimental results to support theoretical analysis.
This article presents average modeling of a dual-half-bridge (DHB) dc-dc converter operated with independent control over phase shift, the primary-side duty cycle, and the secondary-side duty cycle. All six possible working modes and their corresponding power transfer characteristics are derived. State-space average models of the working modes are developed, and a corresponding closed-loop control scheme is proposed to regulate the power flow and lower/upper arm voltage split at both sides of the transformer independently. In addition, a transformer minimum rms current operation rule is presented. Finally, experimental results are presented to support the theoretical analysis.
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