公开(公告)号：SE524772C2

公开(公告)日：2004-09-28

申请号：SE0302430

申请日：2003-09-11

Applicant: ABB RESEARCH LTD

Inventor： LILJESTRAND LARS ,  KJAER PHILIP ,  VALDEMARSSON STEFAN

IPC: H01H3/26 ,  H01H33/66 ,  H02K26/00 ,  H02P1/18 ,  H01H33/36 ,  H02P8/22 ,  H02P1/46 ,  H02P1/42 ,  H01H5/00

Abstract: The drive circuit for the motor coil includes at least one branch point with an electrical energy bank and a thyristor connected in series with the coil.

公开(公告)号：SE0302430D0

公开(公告)日：2003-09-11

申请号：SE0302430

申请日：2003-09-11

Applicant: ABB RESEARCH LTD

Inventor： LILJESTRAND LARS ,  KJAER PHILIP ,  VALDERMARSSON STEFAN

IPC: H01H3/26 ,  H01H33/66 ,  H02K26/00 ,  H02P1/18 ,  H02K

Abstract: The drive circuit for the motor coil includes at least one branch point with an electrical energy bank and a thyristor connected in series with the coil.

公开(公告)号：BRPI0408343A

公开(公告)日：2006-03-21

申请号：BRPI0408343

申请日：2004-03-15

Applicant: ABB RESEARCH LTD

Inventor： KJAER PHILIP ,  KJELLQVIST TOMMY

IPC: H02P21/14 ,  H02P23/14 ,  H02K19/38 ,  H02P21/00

公开(公告)号：SE0302430L

公开(公告)日：2004-09-28

申请号：SE0302430

申请日：2003-09-11

Applicant: ABB RESEARCH LTD

Inventor： LILJESTRAND LARS ,  KJAER PHILIP ,  VALDEMARSSON STEFAN

IPC: H01H3/26 ,  H01H33/66 ,  H02K26/00 ,  H02P1/18 ,  H01H33/36 ,  H02P8/22 ,  H02P1/46 ,  H02P1/42 ,  H01H5/00

Abstract: The drive circuit for the motor coil includes at least one branch point with an electrical energy bank and a thyristor connected in series with the coil.

公开(公告)号：SE0302430A

公开(公告)日：2004-09-28

申请号：SE0302430

申请日：2003-09-11

Applicant: ABB RESEARCH LTD

Inventor： LILJESTRAND LARS ,  KJAER PHILIP ,  VALDEMARSSON STEFAN

IPC: H01H3/26 ,  H01H33/66 ,  H02K26/00 ,  H02P1/18 ,  H01H33/36 ,  H01H5/00 ,  H02P1/42 ,  H02P1/46 ,  H02P8/22

CPC classification number: H02P1/18 ,  H01H3/26 ,  H01H33/666 ,  H01H2003/266 ,  H02K26/00 ,  Y10T307/937

公开(公告)号：CA2518953A1

公开(公告)日：2004-09-23

申请号：CA2518953

申请日：2004-03-15

Applicant: ABB RESEARCH LTD

Inventor： KJELLQVIST TOMMY ,  KJAER PHILIP

IPC: H02P21/14 ,  H02P23/14 ,  H02K19/38 ,  H02P21/00

Abstract: A field current estimator for estimating the field current in a brushless excited synchronous apparatus comprising an exciter having a stator part and an rotor part comprising a rectifier, and a machine having a stator part and a rotor part and a field winding. The field current estimator comprises: a fir st calculating unit, calculating the voltages (Vra,Vrb,Vrc) of the exciter roto r part based on measured values of the current (is) and voltage (us) of the exciter stator part, by means of a mathematical model of the exciter, a seco nd calculating unit, calculating the voltage (vff) of the field winding based o n the calculated voltage (Vra,Vrb,Vrc) of the exciter rotor part, by means of a mathematical model of the rectifier, and a third calculating unit, calculati ng the field current (iff) of the field winding based on the calculated voltage (vff) of the field winding, by means of a mathematical model of the field winding.