Title:
METHOD FOR IMPROVING EFFICIENCY OF MICRO-INVERTER, AND DUAL-ACTIVE-BRIDGE-TYPE MICRO-INVERTER
Document Type and Number:
WIPO Patent Application WO/2023/226724
Kind Code:
A1
Abstract:
Provided in the present invention are a method for improving the efficiency of a micro-inverter, and a dual-active-bridge-type micro-inverter. The method comprises: performing power modulation mode switching of a dual-active-bridge-type micro-inverter, such that the power is bidirectionally transmitted from a direct-current side to an alternating-current side and from the alternating-current side to the direct-current side, thereby reducing a valid value of a secondary-side current of a transformer; and according to the modulation mode switching characteristic of the dual-active-bridge-type micro-inverter within a power frequency period, performing hybrid optimization on the turn ratio of a primary side to a secondary side and a transformer leakage inductance of a high-frequency transformer of the dual-active-bridge-type micro-inverter.
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Inventors:
LI RUI (CN)
YANG JIATAO (CN)
FENG YANGYANG (CN)
YANG JIATAO (CN)
FENG YANGYANG (CN)
Application Number:
PCT/CN2023/092411
Publication Date:
November 30, 2023
Filing Date:
May 06, 2023
Export Citation:
Assignee:
UNIV SHANGHAI JIAOTONG (CN)
International Classes:
H02M7/797; H02M3/335; H02M5/10; H02M7/217; H02M7/537
Domestic Patent References:
| WO2014192014A2 | 2014-12-04 |
Foreign References:
| CN103595287A | 2014-02-19 | |||
| CN114977872A | 2022-08-30 | |||
| CN114785180A | 2022-07-22 | |||
| CN110943606A | 2020-03-31 | |||
| CN103441677A | 2013-12-11 |
Attorney, Agent or Firm:
SHANGHAI ZHISHENG INTELLECTUAL PROPERTY OFFICE (CN)
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