CHINA ELECTRIC POWER RESEARCH INSTITUTE

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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 12147
 
  
 
H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 572
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 4443
 
  
 
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 4170
 
  
 
G05B CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS 398
 
  
 
H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY 3117
 
  
 
G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES 282
 
  
 
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 2100
 
  
 
B23K SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM 192
 
  
 
F16D COUPLINGS FOR TRANSMITTING ROTATION 190

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0317,489 Method For Overcoming Influence Of Out-Flowing Current On Bus Differential ProtectionAug 24, 15Nov 02, 17[G06F, G01R, H02H]
2017/0146,603 Integrated High And Low Voltage Ride Through Test SystemMay 22, 15May 25, 17[H02K, H02P, G01R]
2016/0012,150 SYSTEM AND METHOD FOR MAIN DISTRIBUTION NETWORK GRAPH/MODEL/DATA INTEGRATION BASED ON REMOTE ACCESS AND INFORMATION INTERACTIONDec 16, 14Jan 14, 16[G06Q, G06F]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9891645 Progressive optimization dispatching method of smart distribution systemJun 10, 14Feb 13, 18[G06Q, G05B, G05D, G05F]
9798310 Method for searching cross-regional power supply area based on CIM model and system thereofSep 30, 14Oct 24, 17[G06Q, G05B, G06F]
9762327 Single-core optical transceiverNov 26, 13Sep 12, 17[H04B, G02B]
9753079 Testing device for propagation characteristic of electromagnetic wave in gas insulated switchgear and testing method thereforNov 14, 13Sep 05, 17[H04B, H01Q, G01R]
9659114 Real time dynamic physics simulation device of flexible DC transmission systemNov 29, 11May 23, 17[G06F, G01R]
9660450 Monitoring system and method for megawatt level battery energy storage power plantOct 17, 13May 23, 17[H02J, G06Q, G05B, H02S, F16D]
9632114 Digital closed-loop fiber optical current sensorMay 10, 11Apr 25, 17[G01R]
9614364 Detection system and detection method of distributed generation islanding based on power frequency carrierOct 31, 11Apr 04, 17[H02J, H02H]
9373950 Modular multilevel converter valve protection methodNov 29, 11Jun 21, 16[H02M, H02H]
9373995 Basic function unit of voltage-source converter based on full-controlled devicesOct 31, 11Jun 21, 16[H02M, B23K]

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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]
2014/0320,036 COMPULSORY TRIGGERED SPARK GAP SYSTEM WITH DOUBLE GAPS IN SERIESAbandonedSep 19, 12Oct 30, 14[H01T]
2014/0247,056 Method and Apparatus for Calibrating Voltage Transformer Serial AdditionAbandonedAug 30, 11Sep 04, 14[G01R]
2014/0002,048 VOLTAGE BALANCING CONTROL METHOD FOR MODULAR MULTILEVEL CONVERTERAbandonedOct 31, 11Jan 02, 14[H02M]
2014/0003,101 VALVE CURRENT CONTROL METHOD BASED ON MODULAR MULTI-LEVEL CONVERTERAbandonedOct 31, 11Jan 02, 14[H02M]
2012/0212,862 METHOD AND DEVICE FOR LIMITING SECONDARY ARC CURRENT OF EXTRA-HIGH VOLTAGE/ULTRA-HIGH VOLTAGE DOUBLE CIRCUIT LINES ON THE SAME TOWERAbandonedAug 19, 10Aug 23, 12[H02H]

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