Inventor
WANG CHANGYONG
CN30 patents
⚠️ This page may combine multiple inventors who share the name “WANG CHANGYONG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DELTA ELECTRONICS SHANGHAI CO
12 patentsUS12027909B2Jul 2, 2024
Power conversion system and method of controlling the same
DELTA ELECTRONICS SHANGHAI CO0 citations62
US11239663B2Feb 1, 2022
Energy storage device and power system and control method thereof
DELTA ELECTRONICS SHANGHAI CO1 citations62
US11218001B2Jan 4, 2022
Power supply system and method for alternating current load
DELTA ELECTRONICS SHANGHAI CO0 citations60
US11476671B2Oct 18, 2022
Wind power converting device
DELTA ELECTRONICS SHANGHAI CO0 citations52
US11936310B2Mar 19, 2024
Control method and device for three-phase AC system
DELTA ELECTRONICS SHANGHAI CO0 citations51
US11799293B2Oct 24, 2023
High-voltage DC transformation apparatus and power system and control method thereof
DELTA ELECTRONICS SHANGHAI CO0 citations51
US11777322B2Oct 3, 2023
Islanding detection mothod for inverter and apparatus
DELTA ELECTRONICS SHANGHAI CO0 citations51
US11575264B2Feb 7, 2023
Distributed power supply system and energy regulation method thereof
DELTA ELECTRONICS SHANGHAI CO0 citations51
US11799306B2Oct 24, 2023
Battery internal resistance detection device and method
DELTA ELECTRONICS SHANGHAI CO0 citations49
US10784683B2Sep 22, 2020
Method of controlling electrical power system and apparatus using the same
DELTA ELECTRONICS SHANGHAI CO0 citations49
US10411474B2Sep 10, 2019
Electric power system and control method thereof
DELTA ELECTRONICS SHANGHAI CO0 citations42
US10107264B2Oct 23, 2018
Medium voltage wind power generation system and power generation method using the same
DELTA ELECTRONICS SHANGHAI CO0 citations42
GEN ELECTRIC
11 patentsUS7253537B2Aug 7, 2007
System and method of operating double fed induction generators
GEN ELECTRIC74 citations98
US7573732B2Aug 11, 2009
Protective circuit and method for multi-level converter
GEN ELECTRIC88 citations97
US7394166B2Jul 1, 2008
Method, apparatus and computer program product for wind turbine start-up and operation without grid power
GEN ELECTRIC76 citations97
US7016793B2Mar 21, 2006
Method and apparatus for anti-islanding protection of distributed generations
GEN ELECTRIC76 citations97
US7982326B2Jul 19, 2011
System and method for controlling torque ripples in synchronous machines
GEN ELECTRIC16 citations92
US7852643B2Dec 14, 2010
Cross current control for power converter system
GEN ELECTRIC31 citations92
US7586216B2Sep 8, 2009
Redundant electrical brake and protection system for electric generators
GEN ELECTRIC42 citations92
US7446435B2Nov 4, 2008
Power converter system and method
GEN ELECTRIC38 citations92
US7999418B2Aug 16, 2011
Electrical system and control method
GEN ELECTRIC13 citations84
US7745949B2Jun 29, 2010
Method and apparatus for assembling electrical machines
GEN ELECTRIC16 citations84
US7847526B2Dec 7, 2010
System and method for controlling torque ripples in synchronous machines
GEN ELECTRIC6 citations74
DELTA ELECTRONICS INC
5 patentsUS9722505B2Aug 1, 2017
Wind power conversion system with plural first converting circuits and a second converting circuit
DELTA ELECTRONICS INC2 citations73
US9680306B2Jun 13, 2017
Wind power generation control device and wind power generation system having the same
DELTA ELECTRONICS INC6 citations69
US12362405B2Jul 15, 2025
Monitoring and protection system and energy storage device
DELTA ELECTRONICS INC0 citations52
US12009695B2Jun 11, 2024
Power conversion system
DELTA ELECTRONICS INC0 citations49
US11545836B2Jan 3, 2023
Photovoltaic energy storage system and control method thereof
DELTA ELECTRONICS INC0 citations45