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Extract from the Register of European Patents

EP About this file: EP3965272

EP3965272 - DYNAMIC RESONANCE CONTROL FOR GRID-TIED POWER CONVERTERS [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  09.01.2026
Database last updated on 26.03.2026
FormerThe patent has been granted
Status updated on  31.01.2025
FormerGrant of patent is intended
Status updated on  07.10.2024
FormerExamination is in progress
Status updated on  07.04.2023
FormerRequest for examination was made
Status updated on  05.08.2022
FormerThe application has been published
Status updated on  04.02.2022
Most recent event   Tooltip16.01.2026Lapse of the patent in a contracting state
New state(s): DK		published on 18.02.2026  [2026/08]
Applicant(s)For all designated states
Rockwell Automation Technologies, Inc.
1 Allen-Bradley Drive
Mayfield Heights, OH 44124 / US
[2022/10]
Inventor(s)01 / Zhang, Zhendong
Mayfield Heights / US
02 / Miklosovic, Rob
Mayfield Heights / US
03 / Mohamed Sayed Ahmed, Ahmed
Mayfield Heights / US
 [2022/10]
Representative(s)Grünecker Patent- und Rechtsanwälte PartG mbB
Leopoldstraße 4
80802 München / DE
[2022/10]
Application number, filing date21191631.717.08.2021
[2022/10]
Priority number, dateUS20201701317504.09.2020         Original published format: US202017013175
[2022/10]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP3965272
Date:09.03.2022
Language:EN
[2022/10]
Type: B1 Patent specification 
No.:EP3965272
Date:05.03.2025
Language:EN
[2025/10]
Search report(s)(Supplementary) European search report - dispatched on:EP28.01.2022
ClassificationIPC:H02M1/00, H02M1/12
[2022/10]
CPC:
H02M1/126 (EP,CN,US); H02M7/797 (CN); H02M1/0003 (EP);
H02M1/0012 (EP); H02M1/0016 (EP); H02M1/0025 (EP);
H02M1/12 (EP); H02M7/53871 (EP,US); H02M1/0009 (EP,US) (-)
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 [2022/36]
Former [2022/10]AL,  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 
TitleGerman:DYNAMISCHE RESONANZSTEUERUNG FÜR NETZGEBUNDENE STROMRICHTER[2022/10]
English:DYNAMIC RESONANCE CONTROL FOR GRID-TIED POWER CONVERTERS[2022/10]
French:CONTRÔLE DE RÉSONANCE DYNAMIQUE POUR CONVERTISSEURS DE PUISSANCE RELIÉS AU RÉSEAU[2022/10]
Examination procedure03.08.2022Amendment by applicant (claims and/or description)
03.08.2022Examination requested  [2022/36]
03.08.2022Date on which the examining division has become responsible
12.04.2023Despatch of a communication from the examining division (Time limit: M04)
01.08.2023Reply to a communication from the examining division
08.10.2024Communication of intention to grant the patent
28.01.2025Fee for grant paid
28.01.2025Fee for publishing/printing paid
28.01.2025Receipt of the translation of the claim(s)
Opposition(s)08.12.2025No opposition filed within time limit [2026/07]
Fees paidRenewal fee
22.08.2023Renewal fee patent year 03
20.08.2024Renewal fee patent year 04
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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.
Lapses during opposition  TooltipAT05.03.2025
BG05.03.2025
CZ05.03.2025
DK05.03.2025
EE05.03.2025
ES05.03.2025
FI05.03.2025
HR05.03.2025
IT05.03.2025
LV05.03.2025
NL05.03.2025
PL05.03.2025
RO05.03.2025
SE05.03.2025
SK05.03.2025
SM05.03.2025
NO05.06.2025
RS05.06.2025
GR06.06.2025
IS05.07.2025
PT07.07.2025
[2026/08]
Former [2025/49]AT05.03.2025
BG05.03.2025
CZ05.03.2025
EE05.03.2025
ES05.03.2025
FI05.03.2025
HR05.03.2025
IT05.03.2025
LV05.03.2025
NL05.03.2025
PL05.03.2025
RO05.03.2025
SE05.03.2025
SK05.03.2025
SM05.03.2025
NO05.06.2025
RS05.06.2025
GR06.06.2025
IS05.07.2025
PT07.07.2025
Former [2025/48]AT05.03.2025
BG05.03.2025
CZ05.03.2025
EE05.03.2025
ES05.03.2025
FI05.03.2025
HR05.03.2025
IT05.03.2025
LV05.03.2025
NL05.03.2025
PL05.03.2025
SE05.03.2025
SM05.03.2025
NO05.06.2025
RS05.06.2025
GR06.06.2025
PT07.07.2025
Former [2025/47]BG05.03.2025
ES05.03.2025
FI05.03.2025
HR05.03.2025
IT05.03.2025
LV05.03.2025
NL05.03.2025
PL05.03.2025
SE05.03.2025
SM05.03.2025
NO05.06.2025
RS05.06.2025
GR06.06.2025
PT07.07.2025
Former [2025/46]BG05.03.2025
ES05.03.2025
FI05.03.2025
HR05.03.2025
LV05.03.2025
NL05.03.2025
SE05.03.2025
SM05.03.2025
NO05.06.2025
RS05.06.2025
GR06.06.2025
PT07.07.2025
Former [2025/42]BG05.03.2025
ES05.03.2025
FI05.03.2025
HR05.03.2025
LV05.03.2025
NL05.03.2025
SE05.03.2025
NO05.06.2025
RS05.06.2025
GR06.06.2025
Former [2025/39]BG05.03.2025
ES05.03.2025
FI05.03.2025
HR05.03.2025
LV05.03.2025
NL05.03.2025
NO05.06.2025
RS05.06.2025
GR06.06.2025
Former [2025/35]BG05.03.2025
ES05.03.2025
FI05.03.2025
HR05.03.2025
LV05.03.2025
NO05.06.2025
RS05.06.2025
GR06.06.2025
Former [2025/34]ES05.03.2025
FI05.03.2025
HR05.03.2025
LV05.03.2025
NO05.06.2025
RS05.06.2025
Former [2025/33]ES05.03.2025
FI05.03.2025
RS05.06.2025
Documents cited:Search[X] CN109599867  (UNIV TIANJIN et al.) [X] 1,9,15 * abstract; figure 2 *
 [X]   DIRSCHERL C ET AL: "State-feedback controller and observer design for grid-connected voltage source power converters with LCL-filter", 2015 IEEE CONFERENCE ON CONTROL APPLICATIONS (CCA), IEEE, 21 September 2015 (2015-09-21), pages 215 - 222, XP032809636, DOI: 10.1109/CCA.2015.7320635 [X] 1-15 * Abstract; Section IV. OBSERVER DESIGN; Section V. CONTROLLER DESIGN; Section VI. IMPLEMENTATION AND SIMULATION RESULTS; Section VII. CONCLUSION; Equations 35-40; figures 1-3 *

DOI:   http://dx.doi.org/10.1109/CCA.2015.7320635
 [X]   NAZIB A A ET AL: "High Quality Grid Current Control for LCL Inverters Using Self-Synchronising Inverter Side Current Regulation", 2019 10TH INTERNATIONAL CONFERENCE ON POWER ELECTRONICS AND ECCE ASIA (ICPE 2019 - ECCE ASIA), THE KOREAN INSTITUTE OF POWER ELECTRONICS (KIPE), 27 May 2019 (2019-05-27), pages 2962 - 2969, XP033596794 [X] 1,9,15 * abstract; figure 8 *
 [A]   SAEKI TAKAHIRO ET AL: "Robust active damping technique for three-phase PWM converter connected to power grid with unknown inductance", IECON 2012 - 38TH ANNUAL CONFERENCE ON IEEE INDUSTRIAL ELECTRONICS SOCIETY, IEEE, 25 October 2012 (2012-10-25), pages 739 - 744, XP032281016, ISBN: 978-1-4673-2419-9, DOI: 10.1109/IECON.2012.6388659 [A] 1-15 * figures 2, 4-6 *

DOI:   http://dx.doi.org/10.1109/IECON.2012.6388659
 [A]   BUENO E J ET AL: "Current control of voltage source converters connected to the grid through an LCL-filter", POWER ELECTRONICS SPECIALISTS CONFERENCE, 2004. PESC 04. 2004 IEEE 35TH ANNUAL, AACHEN, GERMANY 20-25 JUNE 2004, PISCATAWAY, NJ, USA,IEEE, US, 20 June 2004 (2004-06-20), pages 68 - 73Vol.1, XP010737970, ISBN: 978-0-7803-8399-9, DOI: 10.1109/PESC.2004.1355715 [A] 1-15 * figure 2 *

DOI:   http://dx.doi.org/10.1109/PESC.2004.1355715
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