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    Solar power plant
    4.
    发明授权
    Solar power plant 有权

    公开(公告)号：US09899896B2

    公开(公告)日：2018-02-20

    申请号：US14171099

    申请日：2014-02-03

    申请人： ABB Oy

    发明人： Jarkko Hyttinen

    IPC分类号： F24D5/10 ,  H02K9/08 ,  F03G6/00

    CPC分类号： H02K9/08 ,  F03G6/00 ,  Y02E10/46

    摘要： A system for cooling a solar power plant is provided. The system has a foundation, a protective housing built on the foundation, and one or more heat sources inside the protective housing. An air inlet can provide a cooling air flow from outside the protective housing to inside the protective housing, and an air outlet can allow an air flow heated by the at least portion of the heat sources to exit the protective housing. An air duct system within the foundation can direct at least part of an incoming air flow to another part in the protective housing.

    Starting of a solar power plant
    6.
    发明授权
    Starting of a solar power plant 有权

    公开(公告)号：US09843185B2

    公开(公告)日：2017-12-12

    申请号：US14054889

    申请日：2013-10-16

    申请人： ABB Oy

    发明人： Jari Uusimäki ,  Jarkko Hyttinen ,  Janne Hellberg

    IPC分类号： H02J1/10 ,  H02J3/38

    CPC分类号： H02J1/102 ,  H02J3/385 ,  Y02E10/58 ,  Y10T307/729

    摘要： A method of optimizing one or more starting parameters of a solar power generator system and a solar power generator system, wherein the solar power generator system includes a solar panel array and a converter for converting power obtained from the panel array. The method can include measuring an output voltage of the panel array, comparing the output voltage with a starting voltage (Vdc), starting the solar power generator system when the output voltage of the panel array exceeds the starting voltage (Vdc), measuring the obtained power from the solar panel array after a morning start, comparing the obtained power with a known limit value, and changing the one or more starting parameters on the basis of the comparison of power.

    Cooling arrangement for a propulsion unit
    7.
    发明授权
    Cooling arrangement for a propulsion unit 有权

    公开(公告)号：US09783279B2

    公开(公告)日：2017-10-10

    申请号：US14711516

    申请日：2015-05-13

    申请人： ABB Oy

    发明人： Jussi Kiiskila ,  Ville Kortelainen ,  Mirva Nevalainen ,  Tero Tamminen

    IPC分类号： B63H5/125 ,  B63J2/12 ,  H02K9/10 ,  F04D29/58 ,  F16C37/00

    CPC分类号： B63J2/12 ,  B63H5/125 ,  B63H2005/1254 ,  B63H2005/1258 ,  F04D29/588 ,  F16C19/10 ,  F16C37/007 ,  F16C2300/14 ,  F16C2326/30 ,  H02K9/10

    摘要： A propulsion unit is disclosed with a hollow strut having an upper portion with an upper end portion passing through a passage (P1) formed between a first outer bottom and a second inner bottom in a vessel. The upper end portion is rotatably supported with a slewing bearing and sealed with a slewing seal towards the vessel. A cooling arrangement includes a cooling air duct system, at least one fan and at least one cooling unit. The slewing seal can include an upper slewing seal and a lower slewing seal at a vertical distance (H1) from each other with a space formed between the slewing seals. The upper end portion has openings (O1) into the space between the slewing seals. A first cooling air duct is directed to this space, whereby cooling air (L1) can be circulated through the first cooling air duct (400) into the space and through the openings (O1) in the upper end portion to the interior of the strut, or return air (L2) can be circulated from the strut in an opposite direction.

    Method and apparatus for controlling electric grid in islanding mode
    9.
    发明授权
    Method and apparatus for controlling electric grid in islanding mode 有权

    公开(公告)号：US09660452B2

    公开(公告)日：2017-05-23

    申请号：US13469868

    申请日：2012-05-11

    申请人： Mikko Routimo

    发明人： Mikko Routimo

    IPC分类号： H02J3/12 ,  H02J3/38 ,  H02M7/42 ,  H02J3/18

    CPC分类号： H02J3/38 ,  H02J3/12 ,  H02J3/1892 ,  H02J2003/388 ,  H02M7/42

    摘要： An exemplary method for controlling transfer of electrical power in island mode in an arrangement having a converter and a load connected to the converter through a filter. The method including determining voltage reference components for one or more frequency components of an output voltage of the converter. An effect of a load current is compensated for by forming one or more voltage feedforward terms based on the load current and using the feedforward terms to adjust the voltage reference components. Control reference components for one or more of the frequency components are formed based on the voltage reference components, and a control reference is formed based on the control reference components. The output voltage of the converter is controlled based on the control reference.