Title:
VOLTAGE-TYPE SINGLE-STAGE MULTI-INPUT HIGH FREQUENCY LINK INVERTER HAVING BUILT-IN PARALLEL TIME-SHARING SELECTION SWITCHES
Document Type and Number:
WIPO Patent Application WO/2019/136575
Kind Code:
A1
Abstract:
The present invention relates to a voltage-type single-stage multi-input high frequency link inverter which has built-in parallel time-sharing selection switches, a circuit structure thereof being formed by connecting multiple common-ground input filters and a common output high-frequency isolated variable-voltage cycle conversion filter circuit by means of a multi-input/single-output high frequency inverter circuit which has built-in parallel time-sharing selection four-quadrant power switches, wherein each input end of the multi-input/single-output high frequency inverter circuit is connected to an output end of each input filter in a one-to-one correspondence, and an output end of the multi-input/single-output high frequency inverter circuit is connected to an input end of the output high-frequency isolated variable-voltage cycle conversion filter circuit. The described inverter has the characteristics of the multiple input sources being commonly grounded and carrying out time-sharing power supply, output being isolated from input at a high frequency, the output high-frequency isolated variable-voltage cycle conversion filter circuit being shared, the circuit being simple, single-stage power conversion being carried out, the conversion efficiency being high, output voltage ripple being small and application prospects being wide, and key technology is established for achieving a small-and-medium-capacity distributed power supply system which uses multiple new energy sources for combined power supply.
Inventors:
CHEN DAOLIAN (CN)
Application Number:
PCT/CN2018/000409
Publication Date:
July 18, 2019
Filing Date:
December 06, 2018
Export Citation:
Assignee:
UNIV QINGDAO (CN)
International Classes:
H02M7/5387; H02M1/12; H02M3/155; H02M3/335; H02M3/337; H02M7/5395
Foreign References:
| CN108111043A | 2018-06-01 | |||
| CN101534059A | 2009-09-16 | |||
| CN1117422C | 2003-08-06 |
Other References:
See also references of EP 3637611A4
Attorney, Agent or Firm:
QINGDAO GAOXIAO PATENT AGENCY (GENERAL PARTNERSHIP) (CN)
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