公开(公告)号：WO2020057707A2

公开(公告)日：2020-03-26

申请号：PCT/DK2019/050274

申请日：2019-09-19

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： BIRIS, Ciprian ,  TANGE, Kent ,  DOAN, Duy Duc ,  ANDERSEN, Gert Karmisholt ,  LUND, Torsten ,  MEYER, Lars

Abstract: This invention concerns a method of controlling a power converter system 26 operating in an overmodulation region. The power converter system 26 comprises more than two current controllers 71, 73, 77, 79 a modulator 76 and a power converter 78, and the modulator 76 is configured to provide at least one modulated drive signal 87 to the power converter 78 based on voltage reference vector signals 82a, 82b, 82c, 82d from the more than two current controllers 71, 73, 77, 79. The method comprises determining the voltage reference vector signals 82a, 82b, 82c, 82d; determining compensated voltage reference vector signals 84a, 84b, 84c, 84d indicative of a fundamental frequency of a respective voltage reference vector signal 82a, 82b, 82c, 82d; and, determining the at least one modulated drive signal 87 based on a combination of the compensated voltage reference vector signals 84a, 84b, 84c, 84d.

公开(公告)号：WO2020057707A3

公开(公告)日：2020-03-26

申请号：PCT/DK2019/050274

申请日：2019-09-19

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： BIRIS, Ciprian ,  TANGE, Kent ,  DOAN, Duy Duc ,  ANDERSEN, Gert Karmisholt ,  LUND, Torsten ,  MEYER, Lars

IPC: H02M5/458 ,  H02M7/5387

Abstract: This invention concerns a method of controlling a power converter system 26 operating in an overmodulation region. The power converter system 26 comprises more than two current controllers 71, 73, 77, 79 a modulator 76 and a power converter 78, and the modulator 76 is configured to provide at least one modulated drive signal 87 to the power converter 78 based on voltage reference vector signals 82a, 82b, 82c, 82d from the more than two current controllers 71, 73, 77, 79. The method comprises determining the voltage reference vector signals 82a, 82b, 82c, 82d; determining compensated voltage reference vector signals 84a, 84b, 84c, 84d indicative of a fundamental frequency of a respective voltage reference vector signal 82a, 82b, 82c, 82d; and, determining the at least one modulated drive signal 87 based on a combination of the compensated voltage reference vector signals 84a, 84b, 84c, 84d.

公开(公告)号：WO2020057703A1

公开(公告)日：2020-03-26

申请号：PCT/DK2019/050266

申请日：2019-09-11

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： BIRIS, Ciprian ,  TANGE, Kent ,  ANDERSEN, Gert Karmisholt ,  DOAN, Duy Duc ,  LUND, Torsten ,  MEYER, Lars

IPC: H02M7/5395 ,  H02M7/5387

Abstract: This invention concerns a method of controlling a line side converter 46 of a power converter system 26 operating in an over-modulation range. The line side converter 46 comprises a controller 64 comprising a feedback control module 72 configured to output a feedback control signal 74 for modifying a drive signal 67 received by a modulator 68. The method comprises determining a modulation index within the over-modulation range; and, controlling the feedback control module 72 to adjust the feedback control signal 74 based on the modulation index.

公开(公告)号：EP3853991A1

公开(公告)日：2021-07-28

申请号：EP19769712.1

申请日：2019-09-11

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： BIRIS, Ciprian ,  TANGE, Kent ,  ANDERSEN, Gert Karmisholt ,  DOAN, Duy Duc ,  LUND, Torsten ,  MEYER, Lars

IPC: H02M7/5395 ,  H02M7/5387

公开(公告)号：EP3853987A2

公开(公告)日：2021-07-28

申请号：EP19853262.4

申请日：2019-09-19

Applicant: VESTAS WIND SYSTEMS A/S

Inventor： BIRIS, Ciprian ,  TANGE, Kent ,  DOAN, Duy Duc ,  ANDERSEN, Gert Karmisholt ,  LUND, Torsten ,  MEYER, Lars

IPC: H02M5/458 ,  H02M7/5387