Title:
【発明の名称】メインズインバータを介して伝送されるべき電力を制御する方法
Document Type and Number:
Japanese Patent JP3309105
Kind Code:
B2
Abstract:
PCT No. PCT/FI95/00246 Sec. 371 Date Nov. 12, 1996 Sec. 102(e) Date Nov. 12, 1996 PCT Filed May 9, 1995 PCT Pub. No. WO95/31857 PCT Pub. Date Nov. 23, 1995The present invention relates to a method for controlling the power to be transferred via a mains inverter, the mains inverter (VVS) being arranged to transfer electric power in both directions between the n-phase AC main system (U) and the DC intermediate circuit (1). According to the method, the power desired to be transferred is controlled by defining reference values (Tref, Vvvs-ref) for the torque and flux of the mains inverter and comparing them with the actual values (T, Vvvs) of the corresponding variables in order to generate signals adjusting the switch positions of the mains inverter in the direction increasing or decreasing the flux and correspondingly in the direction increasing or decreasing the torque, said actual values being determined by determining the position and length of the current vector (I) of the mains inverter by measuring the current (Ia, Ic) of n-1 phases of the AC main system, determining the flux (Vvvs) generated by the mains inverter as an integral of the voltage vector defined on the basis of the voltage measurement (Uc) of the intermediate circuit and data on the switch positions of the mains inverter, and determining the torque (T) generated by the mains inverter as a cross product of said current vector (I) and said flux vector (Vvvs).
Inventors:
Harmoinen, Martti
Maninen, Besa
Pauja Linen, Pasi
Teatinen, Pecca
Maninen, Besa
Pauja Linen, Pasi
Teatinen, Pecca
Application Number:
JP52938995A
Publication Date:
July 29, 2002
Filing Date:
May 09, 1995
Export Citation:
Assignee:
ABB O Salmon Yukiture
International Classes:
H02M7/72; H02P21/22; H02P21/30; H02P23/30; H02P27/06; (IPC1-7): H02M7/48; H02M7/72; H02P7/63
Domestic Patent References:
| JP2193587A | ||||
| JP2206384A | ||||
| JP3173388A | ||||
| JP63186596A | ||||
| JP5292753A |
Attorney, Agent or Firm:
Akira Asamura (3 outside)