Title:
MULTI-LEVEL SOFT SWITCHING INVERTER CIRCUIT, AND BALANCING METHOD FOR VOLTAGE AT INTERMEDIATE LEVEL THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/103811
Kind Code:
A1
Abstract:
Disclosed is a multi-level soft switching inverter circuit, comprising an inverter driving circuit having multiple phases which are mutually independent and have the same structure. Each phase of the inversion driving circuit comprises four direct current input ends, an alternating current output end, a switching module, a soft switching inverter module, and a control module. The switching module is provided with four input ends and two output ends, and the four input ends are respectively connected to the four direct current input ends. The soft switching inverter module is provided with two input ends and one output end. The two input ends of the soft switching inverter module are respectively connected to the two output ends of the switching module, and the output end of the soft switching inverter module is used as an alternating current output end. The control module is used for controlling the operation of the modules. The switching module is used for, under the control of the control module, outputting an appropriate direct current voltage window to the soft switching inverter module. The soft switching inverter module is used for converting the direct current into an alternating current output.
Inventors:
ZHOU YAN (CN)
Application Number:
PCT/CN2022/134312
Publication Date:
June 15, 2023
Filing Date:
November 25, 2022
Export Citation:
Assignee:
ZHOU YAN (CN)
International Classes:
H02M7/487
Domestic Patent References:
| WO2014007432A1 | 2014-01-09 |
Foreign References:
| CN114362574A | 2022-04-15 | |||
| CN111697861A | 2020-09-22 | |||
| CN105827129A | 2016-08-03 | |||
| JP2011130517A | 2011-06-30 |
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