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Three-mode one-cycle controlled current-source single-stage multi-input high-frequency-link inverter.
- Source :
-
Journal of Power Electronics . Jan2023, Vol. 23 Issue 1, p149-160. 12p. - Publication Year :
- 2023
-
Abstract
- A current-source single-stage multi-input high-frequency-link grid-connected inverter and a three-mode one-cycle control strategy are proposed and deeply investigated in this paper. The inverter contains multiple current-source inverting units, a multi-input high-frequency transformer, and a cycloconverter. It achieves single-stage power conversion and high-frequency galvanic isolation with a simple circuit structure. The control strategy adds a by-pass switch to the energy storage inductor. It has energy-storing, energy-releasing, and three by-pass operation modes in a low frequency cycle. Through calculating the energy-releasing duty cycle in real time, the magnetic saturation problem of current-source inverters is solved and the output waveform quality is greatly improved. Soft-switching of the converter, a transfer function block diagram, and the design of the main circuit parameters are achieved. The simulation of a three-input inverter and experiment on a two-input inverter verify the feasibility and advancement of the proposed circuit topology and control strategy. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 15982092
- Volume :
- 23
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Journal of Power Electronics
- Publication Type :
- Academic Journal
- Accession number :
- 161077168
- Full Text :
- https://doi.org/10.1007/s43236-022-00517-8