Inventor
QI LI
US23 patents
⚠️ This page may combine multiple inventors who share the name “QI LI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ABB SCHWEIZ AG
10 patentsUS9819188B1Nov 14, 2017
Direct current transmission system and method
ABB SCHWEIZ AG27 citations93
US10693293B2Jun 23, 2020
Fault protection in converter-based DC distribution systems
ABB SCHWEIZ AG7 citations82
US11101640B1Aug 24, 2021
Solid-state protection for direct current networks
ABB SCHWEIZ AG5 citations73
US11230202B2Jan 25, 2022
Multiple vehicle charging system
ABB SCHWEIZ AG2 citations72
US11394199B2Jul 19, 2022
Intelligent current limiting for solid-state switching
ABB SCHWEIZ AG2 citations71
US10411587B2Sep 10, 2019
Fault isolation and system restoration using power converter
ABB SCHWEIZ AG5 citations68
US11532933B2Dec 20, 2022
Current control and circuit protection for distributed energy resources
ABB SCHWEIZ AG1 citations62
US12113396B1Oct 8, 2024
Fuel cell powered ring bus architectures
ABB SCHWEIZ AG0 citations60
US9608551B2Mar 28, 2017
Reducing peak fault output current in a DC power generation system
ABB SCHWEIZ AG1 citations51
US11955835B2Apr 9, 2024
Method and control to integrate fuel cells in datacenters with ring-bus architecture
ABB SCHWEIZ AG0 citations50
ABB TECHNOLOGY AG
4 patentsUS10483758B2Nov 19, 2019
Method and apparatus for controlling a hybrid energy storage system
ABB TECHNOLOGY AG3 citations72
US9742331B2Aug 22, 2017
Doubly-fed, variable-speed, dual-voltage AC generation and distribution systems
ABB TECHNOLOGY AG6 citations71
US9748762B2Aug 29, 2017
Method and apparatus for the protection of DC distribution systems
ABB TECHNOLOGY AG0 citations51
US9419428B2Aug 16, 2016
Protection device for DC collection systems
ABB TECHNOLOGY AG0 citations41
ABB TECHNOLOGY LTD
4 patentsUS9762047B2Sep 12, 2017
Technologies for zonal fault protection of DC distribution systems
ABB TECHNOLOGY LTD3 citations71
US9791495B2Oct 17, 2017
High impedance fault location in DC distribution systems
ABB TECHNOLOGY LTD1 citations50
US9614429B2Apr 4, 2017
System for converting AC electrical power to DC electrical power and methods
ABB TECHNOLOGY LTD0 citations41
US9800044B2Oct 24, 2017
Fault location of DC distribution systems
ABB TECHNOLOGY LTD0 citations40