公开(公告)号：US12270378B2

公开(公告)日：2025-04-08

申请号：US18543189

申请日：2023-12-18

Applicant: ENEDYM INC.

Inventor： Jianbin Liang ,  Lea Pommier ,  Brock Howey ,  Berker Bilgin

IPC: F03D7/02 ,  F03D9/25 ,  F03D80/60

Abstract: A system for controlling pitch angle of a blade of a wind turbine is provided. The system may comprise a switched reluctance motor and an inverter. The motor may be configured to be positioned at a hub of the wind turbine and coupled to the blade. The motor may have a stator and a rotor. The stator may have: (i) multiple stator poles and (ii) coil windings around each of the multiple stator poles. The rotor may be rotatably mounted with respect to the stator. The rotor may have multiple rotor poles and a rotor shaft configured to be coupled to the blade to control the pitch angle of the blade. The inverter may be configured to supply electrical power to the coil windings to control motion of the rotor shaft in response to receiving a pitch angle control signal from a pitch angle control system of the wind turbine.

公开(公告)号：US20250096716A1

公开(公告)日：2025-03-20

申请号：US18269819

申请日：2023-03-02

Applicant: Enedym Inc.

Inventor： Jianbin Liang ,  Berker Bilgin

IPC: H02P29/50 ,  H02P25/089

Abstract: The current profile of excitation current provided to the electrical coils of a switched reluctance machine is controlled to reduce acoustic noise. A plurality of potential current waveforms can be evaluated to select a desired waveform that reduces the acoustic noise level of the switched reluctance machine. A cumulative sound pressure level of the switched reluctance machine can be determined for each potential current waveform. The cumulative sound pressure level can be determined based on a plurality of harmonic sound pressure levels expected to result from the potential current waveform. A desired current waveform can be identified as the potential current waveform associated with an optimal cumulative sound pressure level. The desired current waveform can then be applied to the corresponding phase coil of the switched reluctance machine in order to operate the switched reluctance machine while reducing acoustic noise without sacrificing other motor performance metrics.

公开(公告)号：US20240218855A1

公开(公告)日：2024-07-04

申请号：US18543189

申请日：2023-12-18

Applicant: ENEDYM INC.

Inventor： Jianbin Liang ,  Lea Pommier ,  Brock Howey ,  Berker Bilgin

IPC: F03D7/02 ,  F03D9/25 ,  F03D80/60

CPC classification number: F03D7/0224 ,  F03D7/0248 ,  F03D9/25 ,  F03D80/60 ,  F05B2260/903 ,  F05B2270/326

Abstract: A system for controlling pitch angle of a blade of a wind turbine is provided. The system may comprise a switched reluctance motor and an inverter. The motor may be configured to be positioned at a hub of the wind turbine and coupled to the blade. The motor may have a stator and a rotor. The stator may have: (i) multiple stator poles and (ii) coil windings around each of the multiple stator poles. The rotor may be rotatably mounted with respect to the stator. The rotor may have multiple rotor poles and a rotor shaft configured to be coupled to the blade to control the pitch angle of the blade. The inverter may be configured to supply electrical power to the coil windings to control motion of the rotor shaft in response to receiving a pitch angle control signal from a pitch angle control system of the wind turbine.