Invention Grant
- Patent Title: DFIG converter with active filter
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Application No.: US15944828Application Date: 2018-04-04
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Publication No.: US10778112B2Publication Date: 2020-09-15
- Inventor: Govardhan Ganireddy , Harold Robert Schnetzka , Robert Gregory Wagoner , Amy Marlene Ridenour , Kapil Jha , Yashomani Y. Kolhatkar , Arvind Kumar Tiwari
- Applicant: General Electric Company
- Applicant Address: US NY Schenectady
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Schenectady
- Agency: Dority & Manning, P.A.
- Main IPC: H02M5/458
- IPC: H02M5/458 ; H02P9/00 ; F03D9/25 ; H02M1/12 ; H02M7/493 ; H02P101/15 ; H02K7/18 ; H02M7/219 ; H02M1/00 ; H02M7/5387 ; H02M7/23

Abstract:
An electrical power system connected to a power grid can include a generator having a stator and a rotor and a power converter. The stator is connected to the power grid via a stator power path. The power converter can include a line-side converter coupled to the power grid via a converter power path and a rotor-side converter coupled to a rotor bus of the rotor and the line-side converter via a DC link. The rotor-side converter is configured to convert a DC power on the DC link to an AC signal for the rotor bus. The power system can also include an active filter having one or more active controlled components. The active filter is coupled in parallel with the rotor-side converter to reduce harmonics of the electrical power system.
Public/Granted literature
- US20190312502A1 DFIG Converter with Active Filter Public/Granted day:2019-10-10
Information query
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