Inventor · disambiguated record
Heinz-Hermann Letas
Also filed as: LETAS HEINZ-HERMANN
25 granted patents·2 pending applications·200 citations·filing 2004–2019
95Inventor score
Top patents by PatentIndex Score
27 records- 0195US7606638B2Wind park with robust reactive power adjustment system and method for the operation thereofREPOWER SYSTEMS AG·Filed 2005·Granted Oct 20, 2009·49 cites·12 claims
- 0286US8692419B2Method for operating a wind power plant with excess voltage in the gridFORTMANN JENS·Filed 2008·Granted Apr 8, 2014·23 cites·28 claims
- 0386US8400003B2Wind energy installation having a double-energized asynchronous generator and converter controlLETAS HEINZ-HERMANN·Filed 2009·Granted Mar 19, 2013·15 cites·13 claims
- 0484US10637248B2Systems and methods for wind turbine circuit breakingSENVION GMBH·Filed 2018·Granted Apr 28, 2020·3 cites·8 claims
- 0584US8934270B2Control circuit and method for converters of wind turbinesLETAS HEINZ-HERMANN·Filed 2011·Granted Jan 13, 2015·7 cites·17 claims
- 0683US8405237B2Energy supply for a blade adjustment device pertaining to a wind energy installationWARFEN KARSTEN·Filed 2007·Granted Mar 26, 2013·8 cites·16 claims
- 0779US8344532B2Rotor blade adjustment device for a wind turbineREPOWER SYSTEMS AG·Filed 2008·Granted Jan 1, 2013·4 cites·12 claims
- 0878US8749082B2Monitoring device for pitch systems of wind energy systemsLETAS HEINZ-HERMANN·Filed 2009·Granted Jun 10, 2014·4 cites·18 claims
- 0976US7741728B2Wind power plant comprising a reactive power module for supporting a power supply system and corresponding methodREPOWER SYSTEMS AG·Filed 2004·Granted Jun 22, 2010·19 cites·10 claims
- 1074US8373291B2Wind park with voltage regulation of the wind energy systems and operating methodREPOWER SYSTEMS AG·Filed 2008·Granted Feb 12, 2013·13 cites·17 claims
- 1174US8084875B2Wind energy installation with an extended rotation speed rangeLETAS HEINZ-HERMANN·Filed 2008·Granted Dec 27, 2011·12 cites·21 claims
- 1272US9397599B2Wind farm harmonic predictor and method for predicting harmonicsREPOWER SYSTEMS SE·Filed 2013·Granted Jul 19, 2016·4 cites·11 claims
- 1372US8710689B2Wind energy system having a connection protection deviceLETAS HEINZ-HERMANN·Filed 2009·Granted Apr 29, 2014·10 cites·17 claims
- 1469US10879783B2Wind turbine having low-harmonic converter system, and method for operationSENVION GMBH·Filed 2018·Granted Dec 29, 2020·1 cites·21 claims
- 1568US11018609B2Control of a wind turbine by changing rotation rate parametersSENVION GMBH·Filed 2019·Granted May 25, 2021·1 cites·15 claims
- 1667US9787174B2Chopper-boosted converter for wind turbinesSENVION SE·Filed 2013·Granted Oct 10, 2017·3 cites·21 claims
- 1767US8378514B2Phase-angle offsettng converter to minimize damaging effects of sudden phase changes due to network disturbanceREPOWER SYSTEMS AG·Filed 2007·Granted Feb 19, 2013·7 cites·14 claims
- 1866US8390138B2Wind energy installation with negative sequence system regulation and operating methodFORTMANN JENS·Filed 2007·Granted Mar 5, 2013·7 cites·16 claims
- 1961US8106525B2Wind energy installation with an autonomous energy supply for a blade adjustment deviceLETAS HEINZ-HERMANN·Filed 2007·Granted Jan 31, 2012·5 cites·19 claims
- 2055US9416772B2Motor load reduction in a wind power plantALTEMARK JENS·Filed 2010·Granted Aug 16, 2016·1 cites·25 claims
- 2155US8189353B2Method for the operation and use of a converterLETAS HEINZ-HERMANN·Filed 2007·Granted May 29, 2012·2 cites·30 claims
- 2254US8368239B2Drive circuit and method for inverters of wind energy installationsREPOWER SYSTEMS AG·Filed 2009·Granted Feb 5, 2013·2 cites·15 claims
- 2351US10389137B2Wind turbine having an expanded voltage rangeSENVION GMBH·Filed 2014·Granted Aug 20, 2019·0 cites·28 claims
- 2450US2010091417A1Overvoltage protective device for wind energy installationsREPOWER SYSTEMS AG·Filed 2009·Application pending·0 cites
- 2548US9121882B2Wind energy plant testing deviceLETAS HEINZ-HERMANN·Filed 2009·Granted Sep 1, 2015·0 cites·18 claims
- 2643US2019170117A1Wind farm with autonomous phase angle regulationSENVION GMBH·Filed 2018·Application pending·0 cites
- 2735US9515594B2Wind turbine having improved overvoltage protectionSENVION SE·Filed 2015·Granted Dec 6, 2016·0 cites·29 claims
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