Inventor
YU YANFEI
CN32 patents
⚠️ This page may combine multiple inventors who share the name “YU YANFEI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUNGROW POWER SUPPLY CO LTD
29 patentsUS10298019B1May 21, 2019
Communication host and photovoltaic power generation system
SUNGROW POWER SUPPLY CO LTD2 citations73
US11201537B2Dec 14, 2021
Method for suppressing common mode impulse current for inverter generated when switching on alternating current switch and application device thereof
SUNGROW POWER SUPPLY CO LTD2 citations72
US10503126B2Dec 10, 2019
Access control method for parallel direct current power supplies and device thereof
SUNGROW POWER SUPPLY CO LTD2 citations71
US11626837B2Apr 11, 2023
Photovoltaic system and method for locating devices in photovoltaic string
SUNGROW POWER SUPPLY CO LTD2 citations70
US9912252B2Mar 6, 2018
Pre-charge circuit and photovoltaic inverter
SUNGROW POWER SUPPLY CO LTD2 citations70
US11031906B2Jun 8, 2021
Current-voltage curve scan method for photovoltaic module, and optimizer
SUNGROW POWER SUPPLY CO LTD2 citations69
US10075127B1Sep 11, 2018
Photovoltaic rapid shutdown device and photovoltaic system
SUNGROW POWER SUPPLY CO LTD4 citations69
US11843241B2Dec 12, 2023
Intelligent switch device and power generation system
SUNGROW POWER SUPPLY CO LTD1 citations62
US11973349B2Apr 30, 2024
Device for suppressing potential induced degradation and system
SUNGROW POWER SUPPLY CO LTD0 citations61
US11101661B2Aug 24, 2021
Device for suppressing potential induced degradation and system
SUNGROW POWER SUPPLY CO LTD1 citations61
US10523011B2Dec 31, 2019
Voltage compensation apparatus for photovoltaic system and photovoltaic system
SUNGROW POWER SUPPLY CO LTD1 citations61
US12451839B2Oct 21, 2025
Inverter and alternating current fault identification method for photovoltaic system
SUNGROW POWER SUPPLY CO LTD0 citations55
US12413067B2Sep 9, 2025
Rapid turnoff method, photovoltaic assembly turnoff device, and photovoltaic system
SUNGROW POWER SUPPLY CO LTD0 citations52
US12362571B2Jul 15, 2025
Photovoltaic system and communication method therefor
SUNGROW POWER SUPPLY CO LTD0 citations52
US12512677B2Dec 30, 2025
Photovoltaic power generation system and control method therefor, and power converter
SUNGROW POWER SUPPLY CO LTD0 citations51
US12119644B2Oct 15, 2024
Control method for photovoltaic rapid switching-off system, and application apparatus and system therefor
SUNGROW POWER SUPPLY CO LTD0 citations51
US11799285B2Oct 24, 2023
Method for starting photovoltaic rapid shutdown system, application apparatus and system
SUNGROW POWER SUPPLY CO LTD0 citations51
US11616376B2Mar 28, 2023
Energy storage system and method for capacity expansion thereof
SUNGROW POWER SUPPLY CO LTD0 citations51
US11387777B2Jul 12, 2022
Active bypass control device and method for photovoltaic module
SUNGROW POWER SUPPLY CO LTD0 citations51
US11303113B2Apr 12, 2022
Shutdown control system and method
SUNGROW POWER SUPPLY CO LTD0 citations51
US11043802B2Jun 22, 2021
Shutdown apparatus for photovoltaic module
SUNGROW POWER SUPPLY CO LTD0 citations51
US11082004B2Aug 3, 2021
Shutdown control system and method
SUNGROW POWER SUPPLY CO LTD0 citations50
US10965246B2Mar 30, 2021
Shutdown control system and method
SUNGROW POWER SUPPLY CO LTD0 citations50
US12057809B2Aug 6, 2024
Method for controlling operation of MLPE device, method for controlling MLPE devices, and photovoltaic system
SUNGROW POWER SUPPLY CO LTD0 citations49
US11894687B2Feb 6, 2024
Method of ranking MLPE apparatuses and locating devices in a photovoltaic string
SUNGROW POWER SUPPLY CO LTD0 citations49
US11683008B2Jun 20, 2023
Photovoltaic inverter, photovoltaic system, and method for controlling discharging
SUNGROW POWER SUPPLY CO LTD0 citations45
US10637252B2Apr 28, 2020
Electrical energy control method and apparatus for photovoltaic system
SUNGROW POWER SUPPLY CO LTD0 citations41
US9923481B2Mar 20, 2018
Photovoltaic system and method for controlling the same
SUNGROW POWER SUPPLY CO LTD0 citations40
US10797599B2Oct 6, 2020
Method for regulating output characteristics of photovoltaic module and direct current/direct current converter
SUNGROW POWER SUPPLY CO LTD0 citations39