Feifei ZHAO

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Nanjing City, CN

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Patents Grantslast 30 patents

Information Patent Grant
Relay protective device, construction machine, relay protection con...
- Patent number 12,106,916
- Issue date Oct 1, 2024
- XUZHOU XCMG EXCAVATOR MACHINERY CO., LTD
- Yadong Li
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
RELAY PROTECTIVE DEVICE, CONSTRUCTION MACHINE, RELAY PROTECTION CON...
- Publication number 20230352257
- Publication date Nov 2, 2023
- XUZHOU XCMG EXCAVATOR MACHINERY CO., LTD
- Yadong LI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD FOR EVALUATING RESONANCE STABILITY OF FLEXIBLE DIRECT CURREN...
- Publication number 20220397879
- Publication date Dec 15, 2022
- State Grid Jiangsu Electric Power Co., Ltd. Economic Research Institute
- Hui Cai
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
CONTROL METHOD FOR A PARALLEL MMC UNIT OF A LCC-MMC HYBRID CASCADE...
- Publication number 20210143754
- Publication date May 13, 2021
- STATE GRID JIANGSU ELECTRIC POWER CO., LTD.
- Hui CAI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER