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Patent Agency Ranking
公开(公告)号：US20170098984A1
公开(公告)日：2017-04-06
申请号：US15307967
申请日：2015-05-21
Applicant: Vestas Wind Systems A/S
Inventor： Kim Sveinsson Sørensen
CPC classification number: H02K15/0068 , H02K3/51 , H02K3/527 , H02K5/225 , H02K7/183 , H02K7/1838 , H02K15/00 , H02K15/0006 , H02K2203/09 , Y02E10/725
Abstract: The invention relates to a method for repairing an electric generator, preferably in a wind turbine generator (WTG), the electric generator (10) having a stator and a rotor (30) rotatably mounted relative to the stator. The method of repairing the electric generator provides a rotor connecting ring (40) with a first conductor assembly and a second conductor assembly in two different planes, each assembly with a plurality of conductive arc segments. Each of the first and the second plurality of conductive arc segments form a ring-like shape in their respective plane, both ring-like shapes being concentrical to the central shaft (132) when the rotor connecting ring is mounted. First electrical connections (50) from the central shaft connect to the rotor connecting ring for the multiple phases (K,L,M). Second electrical connections (60) further connect from the rotor connecting ring to the respective windings of the multiple phases (K,L,M) on the exterior part of the rotor facing the stator. The rotor connecting ring enhances rotational and thermal stability of the electric generator.
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公开(公告)号：US20170244297A1
公开(公告)日：2017-08-24
申请号：US15504135
申请日：2015-09-16
Applicant: Vestas Wind Systems A/S
Inventor： Kim Sveinsson Sørensen , Kim Kristensen
CPC classification number: H02K5/141 , H01R39/08 , H01R39/38 , H01R39/385 , H01R39/40 , H02K15/00 , H02K2213/09
Abstract: The invention relates to a method of adjusting a brush holder (41) of a slip ring and brush assembly comprising at least one slip ring (50) with a radius of curvature R. With the method a test tool (80) is used to simulate a brush in the brush holder with the important difference that the test tool is able to indicate to the operator whether full contact between the slip ring and the contact surface of the test tool is obtained.
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公开(公告)号：US20190301435A1
公开(公告)日：2019-10-03
申请号：US16301456
申请日：2017-06-14
Applicant: Vestas Wind Systems A/S
Abstract: The present invention relates to wind turbine generator (WTG) with a ball bearing (31) supporting a rotating shaft. A suction provider (35), e.g. a rotating disc, is provided next to the ball bearing. An opposite grease reservoir (41) supplies the ball bearing with grease during rotational operation, the grease reservoir further having a shape so that a point (43) of the at least one grease reservoir being closest to the rotating shaft and a grease inlet of the ball bearing are adjoining. The suction provider creates a pressure which is slightly lower than atmospheric pressure, thereby creating a suction of grease (47) through the ball bearing from the grease reservoir, which aids in distributing the grease in the ball bearing. The invention provides an improved ball bearing having an extended lifetime of up to e.g. 7-10 years.
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公开(公告)号：US10256705B2
公开(公告)日：2019-04-09
申请号：US15307967
申请日：2015-05-21
Applicant: Vestas Wind Systems A/S
Inventor： Kim Sveinsson Sørensen
Abstract: The invention relates to a method for repairing an electric generator, preferably in a wind turbine generator (WTG), the electric generator (10) having a stator and a rotor (30) rotatably mounted relative to the stator. The method of repairing the electric generator provides a rotor connecting ring (40) with a first conductor assembly and a second conductor assembly in two different planes, each assembly with a plurality of conductive arc segments. Each of the first and the second plurality of conductive arc segments form a ring-like shape in their respective plane, both ring-like shapes being concentrical to the central shaft (132) when the rotor connecting ring is mounted. First electrical connections (50) from the central shaft connect to the rotor connecting ring for the multiple phases (K,L,M). Second electrical connections (60) further connect from the rotor connecting ring to the respective windings of the multiple phases (K,L,M) on the exterior part of the rotor facing the stator. The rotor connecting ring enhances rotational and thermal stability of the electric generator.
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公开(公告)号：US10236741B2
公开(公告)日：2019-03-19
申请号：US15504135
申请日：2015-09-16
Applicant: Vestas Wind Systems A/S
Inventor： Kim Sveinsson Sørensen , Kim Kristensen
Abstract: The invention relates to a method of adjusting a brush holder (41) of a slip ring and brush assembly comprising at least one slip ring (50) with a radius of curvature R. With the method a test tool (80) is used to simulate a brush in the brush holder with the important difference that the test tool is able to indicate to the operator whether full contact between the slip ring and the contact surface of the test tool is obtained.
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