Electricity: motive power systems – Induction motor systems – Primary circuit control
Patent
1996-08-30
1999-03-02
Wysocki, Jonathan
Electricity: motive power systems
Induction motor systems
Primary circuit control
H02P 700
Patent
active
058776079
ABSTRACT:
In a controller for an electric vehicle, a voltage current phase difference calculating circuit calculates a vector phase .theta..sub.c from a voltage command value and the primary current of an alternating current motor. The vector phase .theta..sub.c is input to a second voltage command circuit which calculates a second d-axis voltage command value and a second q-axis voltage command value using the vector phase .theta..sub.c and d-axis and q-axis current differences. By correcting the voltage command value using the second d-axis and second q-axis voltage command values, the stability of the current control system is improved. By controlling the electric vehicle using such a system, a stable current control can be attained even when the electric vehicle is driven under a regenerative running state or a weak magnetic field control state.
REFERENCES:
patent: 5038092 (1991-08-01), Asano et al.
patent: 5182508 (1993-01-01), Schauder
patent: 5504404 (1996-04-01), Tamaki et al.
patent: 5534764 (1996-07-01), Masaki et al.
patent: 5589754 (1996-12-01), Heikkila
patent: 5629597 (1997-05-01), Imanaka
patent: 5659235 (1997-08-01), Yamada et al.
Kaneko Satoru
Masaki Ryoso
Miyazaki Taizou
Obara Sanshiro
Takamoto Yuusuke
Hitachi , Ltd.
Wysocki Jonathan
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