Electricity: motive power systems – Induction motor systems – Primary circuit control
Patent
1999-03-11
2000-08-22
Masih, Karen
Electricity: motive power systems
Induction motor systems
Primary circuit control
318808, 318800, 318432, 318798, 318799, 318433, 318767, 318778, 318812, 318632, H02P 528
Patent
active
061077747
ABSTRACT:
In vector control apparatus and method for a three-phase multiplex winding motor, a plurality of inverters are installed, each inverter operatively driving a corresponding one of multiplex windings of the motor and a plurality of inverter controllers are installed whose number corresponds to that of the inverters. Each controller includes: a decoupling voltage calculator for calculating d-axis and q-axis voltage setting values V.sub.1 d* and V.sub.1 q* on the basis of an excitation instruction value Io*, a torque instruction value I.sub.T *, d-axis-and-q-axis current instruction values i.sub.1 d* and i.sub.1 q* which are quotients of the excitation instruction value Io* and the torque instruction value I.sub.T * divided respectively by the multiplex number N of the windings of the motor, and a power supply frequency .omega. which is an addition of a slip frequency .omega.s to a rotor revolution frequency .omega.r; a d-axis-and-q-axis current controller for performing P-I calculations for respective deviations between d-axis current instruction value i.sub.1 d* and its detected value i.sub.1 d and between q-axis current instruction value i.sub.1 q* and its detected value i.sub.1 q so as to derive d-axis and q-axis voltage errors .DELTA.V.sub.1 d and .DELTA.V.sub.1 q ; and a plurality of PWM circuits, each receiving d-axis and q-axis voltages V.sub.1 d and V.sub.1 q as d-axis and d-axis voltage instructions and generating and outputting gate signals to the corresponding one of the inverters, the d-axis and d-axis voltages being respective additions of the d-axis and q-axis voltage setting values V.sub.1 d* and V.sub.1 q* to the d-axis-and-q-axis voltage errors .DELTA.V.sub.1 d and .DELTA.V.sub.1 q.
REFERENCES:
patent: 5341081 (1994-08-01), Yamada
patent: 5481173 (1996-01-01), Yamamoto
patent: 5594670 (1997-01-01), Yamamoto
patent: 5701066 (1997-12-01), Matsuura et al.
Yamada, T., et al., "Compensation for Parameters Variation of Induction Motor Improved Torque Control Characteristics at Low and High Speed Region," T-IEE Japan, vol. 112-D, No. 2, pp. 107-116 (1992).
Mizuno, T., et al., "Decoupling Control Method of Induction Motor Taking Stator Core Loss Into Consideration," T-IEE Japan, vol. 109-D, No. 11, pp. 841-848 (1989).
Terashima, M., "Comparison of Practical Performances Between Controlled Current Source and Controlled Voltage Source Vector Control Systems," T-IEE Japan, vol. 107-D, No. 2, pp. 183-190 (1987).
Ashikaga, T., et al., "An Efficiency Maximizing Control Method for Induction Motor Used Electric Vehicle Drive," T-IEE Japan, vol. 116-D, No. 3, pp. 310-318 (1996).
Mizuno Takayuki
Yamada Tetsuo
Kabushiki Kaisha Meidensha
Masih Karen
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