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公开(公告)号：US10097123B2
公开(公告)日：2018-10-09
申请号：US15726443
申请日：2017-10-06
Applicant: ABB Schweiz AG
Inventor： Ghanshyam Shrestha , Darren Tremeling , Waqas Arshad , Wen Ouyang , Jan Westerlund
IPC: H02P9/30 , H02K3/28 , H02K3/20 , H02K11/042 , H02K19/12
Abstract: A synchronous machine and related systems include a stator and rotor separated by an air gap. The rotor includes a rotating DC power supply coupled to exciter windings disposed adjacent the air gap. Power from air gap harmonics, including air gap slot harmonics induce current in the exciter windings, which is rectified and supplied to the rotor field windings. In operation, a desired current level in the rotor field windings can be achieved through control of the DC power supply or superposition of harmonics into the stator winding current which induces the prescribed current in exciter windings.
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公开(公告)号：US09853536B2
公开(公告)日：2017-12-26
申请号：US14139728
申请日：2013-12-23
Applicant: ABB Schweiz AG
Inventor： Jing Xu , Zhenyuan Wang , Jun Li , Waqas Arshad
CPC classification number: H02M1/10 , H02J1/08 , H02J3/383 , H02J4/00 , H02J7/35 , H02J2001/002 , Y02B10/14 , Y02E10/563 , Y02E10/566 , Y10T307/414
Abstract: Methods, systems, and computer readable media for managing the distribution of photovoltaic power in a multi-floor building are disclosed. According to one aspect, a method includes determining power requirements for each of a plurality of loads associated with a respective plurality of floors in a multi-floor building, wherein each of the plurality of floors includes a direct current (DC) distribution bus. The method further includes using a PV converter to supply a power output from a PV source to one or more of the plurality of loads via one or more respective DC distribution buses, wherein the power output is supplied to the one or more of the plurality of loads in an order such that each subsequent load is supplied at least a remaining portion of the power output after the power requirements of a previously supplied load is fully satisfied.
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公开(公告)号：US20180034396A1
公开(公告)日：2018-02-01
申请号：US15726443
申请日：2017-10-06
Applicant: ABB Schweiz AG
Inventor： Ghanshyam Shrestha , Darren Tremeling , Waqas Arshad , Wen Ouyang , Jan Westerlund
IPC: H02P9/30 , H02K3/28 , H02K19/12 , H02K11/042
CPC classification number: H02P9/302 , H02K3/20 , H02K3/28 , H02K11/042 , H02K19/12
Abstract: A synchronous machine and related systems include a stator and rotor separated by an air gap. The rotor includes a rotating DC power supply coupled to exciter windings disposed adjacent the air gap. Power from air gap harmonics, including air gap slot harmonics induce current in the exciter windings, which is rectified and supplied to the rotor field windings. In operation, a desired current level in the rotor field windings can be achieved through control of the DC power supply or superposition of harmonics into the stator winding current which induces the prescribed current in exciter windings.
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