Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
EXTERNAL PARALLEL-CONNECTED TIME-SHARING SELECTIVE SWITCHING VOLTAGE-TYPE SINGLE-STAGE MULTIPLE-INPUT LOW-FREQUENCY LINK INVERTER
Document Type and Number:
WIPO Patent Application WO/2019/136574
Kind Code:
A1
Abstract:
The present invention relates to an external parallel-connected time-sharing selective switching voltage-type single-stage multiple-input low-frequency link inverter, the circuit structure thereof is constituted by one external parallel-connected time-sharing selective four-quadrant power switch multiple-input single-output high-frequency inverter circuit connecting multiple commonly-grounded input filters to one shared output low-frequency isolated transformer filter circuit, input ends of the multiple-input single-output high-frequency inverter circuit are correspondingly connected one-to-one to output ends of the input filters, and an output end of the multiple-input single-output high-frequency inverter circuit is connected to an input end of the output low-frequency isolated transformer filter circuit. The inverter has the characteristics of multiple input sources sharing a ground and supplying electricity in a time-sharing manner, output and input being isolated by a low frequency, a shared output low-frequency transformer filter circuit, a simple circuit topology, single-stage power conversion, high conversion efficiency, small output voltage ripples, and broad application prospects, and lays a key technique for large-volume distributed electricity supply system in which various novel energy sources jointly supply electricity.

Inventors:
CHEN, Daolian (No.7 Hongkong East Road, Laoshan DistrictQingdao, Shandong 0, 266000, CN)
ZENG, Hanchao (No.7 Hongkong East Road, Laoshan DistrictQingdao, Shandong 0, 266000, CN)
Application Number:
CN2018/000408
Publication Date:
July 18, 2019
Filing Date:
December 06, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
QINGDAO UNIVERSITY (No.7 Hongkong East Road, Laoshan DistrictQingdao, Shandong 0, 266000, CN)
International Classes:
H02M7/5387; H02M1/12; H02M3/155; H02M3/335; H02M5/10
Foreign References:
CN108111045A2018-06-01
CN101534059A2009-09-16
CN1348248A2002-05-08
Attorney, Agent or Firm:
QINGDAO GAOXIAO PATENT AGENCY (GENERAL PARTNERSHIP) (ZHANG, Shigong, 266000, CN)
Download PDF: