Title:
VARIABLE SPEED DRIVER FOR MOTOR
Document Type and Number:
Japanese Patent JP3132625
Kind Code:
B2
Abstract:
PURPOSE: To improve control performance and to prevent phase delay due to a calculation delay by conducting the feedback control of a voltage and the vector control of the voltage.
CONSTITUTION: 3-phase/2-phase converting means 6 converts three-phase quantity of per-units PUu, PUw to two-phase quantity of vapu, vbqu. The two-phase quantity vapu, vbqu and rotary angle data θ are input to a coordinate converter 5, and converted from a stator coordinate system to rotor coordinate systems vfd, vfq. Outputs vfd, vfq are input to regulating means 1. Command values V1d, V1q are added to products obtained by multiplying an error by the voltage command value V1d of d-axis and the voltage command value V1q of q-axis and further an error by gains kd, kq by to obtain command values V1d, V1q. Voltage vector command calculating means 2 receives the output Vpd, Vpq, and calculates magnitude data vabs and phase angle data δ* of voltage vector command.
Inventors:
Toshiyuki Sasaki
Shinichi Ishii
Shinichi Ishii
Application Number:
JP10032194A
Publication Date:
February 05, 2001
Filing Date:
May 16, 1994
Export Citation:
Assignee:
Fuji Electric Co., Ltd.
International Classes:
H02P21/00; H02P27/04; (IPC1-7): H02P21/00
Domestic Patent References:
| JP1259783A | ||||
| JP648896A | ||||
| JP5100709A | ||||
| JP4353902A | ||||
| JP4289904A |
Attorney, Agent or Firm:
Kiyoshi Matsuzaki
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