Systems and methods of power-voltage droop control for a direct current (dc) microgrid
US-2025202228-A1 · Jun 19, 2025 · US
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Qi Li patents
Qi Li is listed as an inventor on 42 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Qi Li |
| Total patents | 42 |
| First publication | Jun 2, 2015 |
| Latest publication | Jun 19, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Methods for recovering critical elements from leach solutions
US-2024344170-A1 · Oct 17, 2024 · US
Fuel cell powered ring bus architectures
US-12113396-B1 · Oct 8, 2024 · US
Fuel cell powered ring bus architectures
US-2024313574-A1 · Sep 19, 2024 · US
Method and control to integrate fuel cells in datacenters with ring-bus architecture
US-11955835-B2 · Apr 9, 2024 · US
Hybrid circuit breakers
US-11837865-B2 · Dec 5, 2023 · US
Hybrid circuit breakers
US-2023198248-A1 · Jun 22, 2023 · US
Method and control to integrate fuel cells in datacenters with ring-bus architecture
US-2023115739-A1 · Apr 13, 2023 · US
Current control and circuit protection for distributed energy resources
US-11532933-B2 · Dec 20, 2022 · US
Intelligent current limiting for solid-state switching
US-11394199-B2 · Jul 19, 2022 · US
Recent patents
Latest publications not already listed above.
Intelligent current limiting for solid-state switching
US-2022085600-A1 · Mar 17, 2022 · US
Multiple vehicle charging system
US-11230202-B2 · Jan 25, 2022 · US
Solid-state protection for direct current networks
US-11101640-B1 · Aug 24, 2021 · US
Circuit protection system
US-11070052-B2 · Jul 20, 2021 · US
Multiple vehicle charging system
US-2021178918-A1 · Jun 17, 2021 · US
Current control and circuit protection for distributed energy resources
US-2021143630-A1 · May 13, 2021 · US
Fault protection in converter-based DC distribution systems
US-10693293-B2 · Jun 23, 2020 · US
Method and apparatus for controlling a hybrid energy storage system
US-10483758-B2 · Nov 19, 2019 · US
Fault isolation and system restoration using power converter
US-10411587-B2 · Sep 10, 2019 · US
Circuit protection system
US-2018175605-A1 · Jun 21, 2018 · US
Fault isolation and system restoration using power converter
US-2018166972-A1 · Jun 14, 2018 · US
Direct current transmission system and method
US-9819188-B1 · Nov 14, 2017 · US
Fault location of DC distribution systems
US-9800044-B2 · Oct 24, 2017 · US
High impedance fault location in DC distribution systems
US-9791495-B2 · Oct 17, 2017 · US
Technologies for zonal fault protection of DC distribution systems
US-9762047-B2 · Sep 12, 2017 · US
Method and apparatus for the protection of DC distribution systems
US-9748762-B2 · Aug 29, 2017 · US
Doubly-fed, variable-speed, dual-voltage AC generation and distribution systems
US-9742331-B2 · Aug 22, 2017 · US
High impedance fault location in dc distribution systems
US-2017192047-A1 · Jul 6, 2017 · US
System for converting AC electrical power to DC electrical power and methods
US-9614429-B2 · Apr 4, 2017 · US
Reducing peak fault output current in a DC power generation system
US-9608551-B2 · Mar 28, 2017 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Abb Schweiz Ag | 23 |
| Abb Technology Ag | 9 |
| Abb Technology Ltd | 9 |
| Abb Spa | 4 |
| Abb Research Ltd | 2 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| H02H7/268 | 13 |
| H02H3/087 | 8 |
| H02H3/08 | 6 |
| H02H9/02 | 6 |
| H02M7/4835 | 5 |