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Extract from the Register of European Patents

EP About this file: EP3788705

EP3788705 - CONTROL METHOD FOR PROTECTING SWITCHING DEVICES IN POWER CONVERTERS IN DOUBLY FED INDUCTION GENERATOR POWER SYSTEMS [Right-click to bookmark this link]
StatusExamination is in progress
Status updated on  17.09.2024
Database last updated on 25.09.2024
FormerGrant of patent is intended
Status updated on  09.06.2024
FormerExamination is in progress
Status updated on  10.02.2023
FormerRequest for examination was made
Status updated on  05.02.2021
FormerThe international publication has been made
Status updated on  08.11.2019
Most recent event   Tooltip17.09.2024Deletion - Disapproval of the communication of intention to grant the patent by the applicant or resumption of examination proceedings by the EPO 
Applicant(s)For all designated states
General Electric Renovables España, S.L.
Calle Roc Boronat 78
08005 Barcelona / ES
[2023/50]
Former [2021/10]For all designated states
General Electric Company
1 River Road
Schenectady, NY 12345 / US
Inventor(s)01 / WAGONER, Robert Gregory
1501
Roanoke Boulevard Salem, VA 24153 / US
02 / HOLLIDAY, Cornelius Edward, III
1501
Roanoke Blvd Salem, VA 24153 / US
 [2021/10]
Representative(s)Zimmermann & Partner Patentanwälte mbB
Postfach 330 920
80069 München / DE
[2021/10]
Application number, filing date18917462.604.05.2018
[2021/10]
WO2018US31091
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2019212563
Date:07.11.2019
Language:EN
[2019/45]
Type: A1 Application with search report 
No.:EP3788705
Date:10.03.2021
Language:EN
The application published by WIPO in one of the EPO official languages on 07.11.2019 takes the place of the publication of the European patent application.
[2021/10]
Search report(s)International search report - published on:KR07.11.2019
(Supplementary) European search report - dispatched on:EP29.10.2021
ClassificationIPC:H02M1/32, H02M7/5387, H02P9/00, H02J3/38, H02H3/16, H02H7/12
[2021/48]
CPC:
H02M1/32 (EP); H02M1/322 (EP); H02M7/5387 (EP);
H02P9/007 (EP); H02J3/38 (EP); H02M5/4585 (EP)
Former IPC [2021/10]H02M1/32, H02M7/5387, H02J3/38
Designated contracting statesAL,   AT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2021/10]
TitleGerman:STEUERUNGSVERFAHREN ZUM SCHUTZ VON SCHALTVORRICHTUNGEN IN STROMRICHTERN IN DOPPELT GESPEISTEN INDUKTIONSGENERATORLEISTUNGSSYSTEMEN[2021/10]
English:CONTROL METHOD FOR PROTECTING SWITCHING DEVICES IN POWER CONVERTERS IN DOUBLY FED INDUCTION GENERATOR POWER SYSTEMS[2021/10]
French:PROCÉDÉ DE COMMANDE POUR PROTÉGER DES DISPOSITIFS DE COMMUTATION DANS DES CONVERTISSEURS DE PUISSANCE DANS DES SYSTÈMES D'ALIMENTATION DE GÉNÉRATEUR À INDUCTION À DOUBLE ALIMENTATION[2021/10]
Entry into regional phase04.12.2020National basic fee paid 
04.12.2020Search fee paid 
04.12.2020Designation fee(s) paid 
04.12.2020Examination fee paid 
Examination proceduredeletedCommunication of intention to grant the patent
04.12.2020Examination requested  [2021/10]
12.05.2022Amendment by applicant (claims and/or description)
09.02.2023Despatch of a communication from the examining division (Time limit: M04)
06.06.2023Reply to a communication from the examining division
10.06.2024Communication of intention to grant the patent
16.09.2024Disapproval of the communication of intention to grant the patent by the applicant or resumption of examination proceedings by the EPO
Fees paidRenewal fee
04.12.2020Renewal fee patent year 03
19.05.2021Renewal fee patent year 04
18.05.2022Renewal fee patent year 05
23.05.2023Renewal fee patent year 06
21.05.2024Renewal fee patent year 07
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Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Documents cited:Search[Y]US2003151259  (FEDDERSEN LORENZ [DE], et al) [Y] 1,13 * figures 1,2,4 *;
 [Y]EP2320549  (SIEMENS AG [DE]) [Y] 1,7-15 * paragraphs [0035] , [0038]; figures 1-6 *;
 [Y]EP2338224  (WOODWARD SEG GMBH & CO KG [DE]) [Y] 1,4-6,13 * paragraphs [0042] - [0044]; figures 1,2 *;
 [Y]US2015155809  (GUPTA AMIT KUMAR [SG], et al) [Y] 4-6 * paragraph [0058]; figures 2-4 *;
 [Y]CN106451470  (UNIV SHANGHAI ELECTRIC POWER) [Y] 7-12,14,15 * abstract *;
 [Y]US2017272014  (REN WEI [US], et al) [Y] 7-12,14,15* paragraph [0051]; figures 2,4,7 *;
 [XY]  - JIN YANG ET AL, "A new converter protection scheme for doubly-fed induction generators during disturbances", INDUSTRIAL ELECTRONICS, 2008. IECON 2008. 34TH ANNUAL CONFERENCE OF IEEE, IEEE, PISCATAWAY, NJ, USA, (20081110), ISBN 978-1-4244-1767-4, pages 2100 - 2105, XP031825739 [X] 1-3 * Section III. CONVERTER PROTECTION SCHEME, Subsection A. Converter Characteristics; Subsection E. Converter Protection Scheme; Subsection V.A. Simulation System; Subsection V.B. Simulation Results; figures 4,5 * [Y] 4-15
 [Y]  - MEENAKSHI R ET AL, "Doubly fed induction generator for wind energy conversion system - A survey", ENERGY EFFICIENT TECHNOLOGIES FOR SUSTAINABILITY (ICEETS), 2013 INTERNATIONAL CONFERENCE ON, IEEE, doi:10.1109/ICEETS.2013.6533456, ISBN 978-1-4673-6149-1, (20130410), pages 617 - 628, (20130614), XP032679638 [Y] 1,13 * Section VI. USE OF CROWBAR SWITCH; figure 10 *

DOI:   http://dx.doi.org/10.1109/ICEETS.2013.6533456
International search[Y]US2007132248  (WENG HAIQING [CN], et al) [Y] 8-11,15-16 * See paragraphs 16-22 and figures 1-3. *;
 [A]JP2007195315  (FUKUOKA INST TECHNOLOGY, et al) [A] 1-20* See the entire document. *;
 [AX]US2011210553  (ENGELHARDT STEPHAN [DE], et al) [A] 2-6,17-20 * See paragraphs 28-50 and figures 1-2. * [X] 1,7,12-14;
 [A]KR20110100692  (AJOU UNIV IND ACAD COOP FOUND [KR]) [A] 1-20 * See the entire document. *;
 [A]US2014070535  (WAGONER ROBERT GREGORY [US], et al) [A] 1-20 * See the entire document. *
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.