STATE GRID CORPORATION OF CHINA

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 35124
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 21426
 
  
 
H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 1760
 
  
 
H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY 16104
 
  
 
F03D WIND MOTORS1129
 
  
 
G06Q DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES, NOT OTHERWISE PROVIDED FOR 11163
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 7199
 
  
 
G05B CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS 695
 
  
 
H02G INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES 643
 
  
 
H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF 597

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0336,461 INTERNAL TRANSFORMER COMPOSITE-DEFECT FUZZY DIAGNOSTIC METHOD BASED ON GAS DISSOLVED IN OILAug 05, 15Nov 23, 17[G01N, G01R, H01F, G01F]
2017/0317,489 Method For Overcoming Influence Of Out-Flowing Current On Bus Differential ProtectionAug 24, 15Nov 02, 17[G06F, G01R, H02H]
2017/0308,934 MANAGEMENT METHOD OF POWER ENGINEERING COSTApr 19, 17Oct 26, 17[G06Q]
2017/0308,966 POST-EVALUATION AND RISK MANAGEMENT AND CONTROL METHOD OF POWER TRANSMISSION ENGINEERING COSTApr 20, 17Oct 26, 17[G06Q]
2017/0176,387 DEVICE AND METHOD FOR CALCULATING TRAPPING PARAMETERS BY MEASURING SHORT-CIRCUIT CURRENT DECAY UNDER REVERSE BIAS VOLTAGEMar 05, 17Jun 22, 17[G01N]
2017/0163,024 METHOD FOR PREVENTING DIFFERENTIAL PROTECTION MALOPERATION OF OPTICAL FIBER CAUSED BY SATURATION OF SINGLE CT OF 3/2 CONNECTIONNov 15, 16Jun 08, 17[H02H]
2017/0152,129 LIVE-WORKING ROBOTNov 23, 16Jun 01, 17[B66F]
2017/0146,603 Integrated High And Low Voltage Ride Through Test SystemMay 22, 15May 25, 17[H02K, H02P, G01R]
2017/0085,076 SETTING AND COORDINATION CALCULATION METHOD FOR PROTECTION SETTING VALUE OF DC SYSTEMMar 21, 16Mar 23, 17[G06F, H02H]
2017/0045,567 MONITORING METHOD AND SYSTEM OF ARRESTER APPLIED TO SMART SUBSTATIONMar 22, 16Feb 16, 17[G01R, H02H]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9917380 Multipurpose wire connection deviceJan 21, 16Mar 13, 18[H01R]
9903896 Method for testing dynamic model parameters of wind power plantApr 02, 14Feb 27, 18[G06F, G01R]
9904588 Method of preventing misoperations about a relay protection device in a smart substationMar 21, 16Feb 27, 18[G06F, H02H]
9906030 Optimal control method for reactive voltage of wind power and photovoltaic power centralized grid connectionApr 18, 14Feb 27, 18[H02J]
9906177 Low-frequency band suppression enhanced anti-reversal power system stabilizerApr 13, 16Feb 27, 18[H02P, F03D, H02H]
9891645 Progressive optimization dispatching method of smart distribution systemJun 10, 14Feb 13, 18[G06Q, G05B, G05D, G05F]
9882370 Service restoration method for multi-faults in distribution networkJun 19, 14Jan 30, 18[H02J, H02H]
9882385 System for starting large-scale power load in micro-gridJun 24, 14Jan 30, 18[H02J, H02M]
9871376 Time based global optimization dispatching methodJun 10, 14Jan 16, 18[H02J, G06Q, G05B]
9863653 Closed circulating water cooling apparatus and methodMay 29, 12Jan 09, 18[H01L, F24F, H05K]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2016/0233,679 A METHOD AND SYSTEM FOR CONTROL OF SMOOTHING THE ENERGY STORAGE IN WIND PHTOVOLATIC POWER FLUCTUATION BASED ON CHANGING RATEAbandonedOct 18, 13Aug 11, 16[H02J, G05B, H02S, F03D]
2016/0203,245 METHOD FOR SIMULATING WIND FIELD OF EXTREME ARID REGION BASED ON WRFAbandonedJan 14, 15Jul 14, 16[G06F]
2016/0169,202 SHORT-TERM OPERATION OPTIMIZATION METHOD OF ELECTRIC POWER SYSTEM INCLUDING LARGE-SCALE WIND POWERAbandonedApr 02, 14Jun 16, 16[F03D]
2016/0014,177 CIM/E AND CIM/G-BASED GRAPHICS-MODEL-INTEGRATED APPARATUS AND METHOD FOR DISTRIBUTION NETWORKAbandonedJul 10, 15Jan 14, 16[H04L]
2016/0006,236 A DIRECT CURRENT CIRCUIT BREAKER AND ITS IMPLEMENTATIONAbandonedDec 03, 13Jan 07, 16[H02H]
2015/0355,215 APPROACH TO ASSESS AVAILABLE WIND RESOURCE DISTRIBUTION BASED ON INTERPOLATION METHODAbandonedOct 16, 14Dec 10, 15[G01P]
2015/0268,290 Method for On-Line Diagnosing Gradually-Changing Fault of Electronic Current TransformersAbandonedOct 09, 13Sep 24, 15[G01R]
2015/0240,789 METHOD OF ANALYZING WAKE FLOW OF WIND TURBINE BASED ON MULTIPLE WAKE FLOW MODELSAbandonedFeb 11, 15Aug 27, 15[G01P, F03D]
2015/0241,598 METHOD OF DIVIDING IRRADIANCE REGIONS BASED ON ROTATED EMPIRICAL ORTHOGONAL FUNCTIONAbandonedFeb 11, 15Aug 27, 15[G01J, G01W]
2015/0242,549 METHOD OF CONSTRUCTING SURFACE ROUGHNESS CHANGE MODEL FOR WIND FARM MICRO-SITTINGAbandonedFeb 11, 15Aug 27, 15[G06F]
2014/0320,036 COMPULSORY TRIGGERED SPARK GAP SYSTEM WITH DOUBLE GAPS IN SERIESAbandonedSep 19, 12Oct 30, 14[H01T]
2014/0156,603 METHOD AND AN APPARATUS FOR SPLITTING AND RECOVERING DATA IN A POWER SYSTEMAbandonedOct 21, 13Jun 05, 14[G06F]
2014/0122,177 ELECTRIC POWER DEMAND RESPONSE SYSTEM AND METHODAbandonedMay 10, 13May 01, 14[G06Q]
8660692 Current alternating robot system and method of electric busExpiredApr 16, 12Feb 25, 14[G06F]
2014/0003,101 VALVE CURRENT CONTROL METHOD BASED ON MODULAR MULTI-LEVEL CONVERTERAbandonedOct 31, 11Jan 02, 14[H02M]
2013/0326,388 POWER GRID VISUALIZATION SYSTEM AND METHOD BASED ON THREE-DIMENSIONAL GIS TECHNOLOGYAbandonedMay 31, 13Dec 05, 13[G06F]
2013/0304,270 NETWORKED DIFFERENTIAL PROTECTION METHOD FOR A DISTRIBUTION NETWORK BASED ON OVERHAULING OF TERMINAL EQUIPMENTAbandonedOct 14, 12Nov 14, 13[G05F]
2013/0278,213 INTEGRATED BATTERY DISPATCHING SYSTEM WITH CENTRALIZED CHARGING AND CENTRALIZED ALLOCATIONAbandonedApr 18, 13Oct 24, 13[B60L]
8367162 Pretreatment method for improving antioxidation of steel T91/P91 in high temperature water vaporExpiredFeb 17, 11Feb 05, 13[B05D]
2012/0306,661 Apparatus for Smart Home NetworkAbandonedMay 15, 12Dec 06, 12[G08C]

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