| 摘要 |
PURPOSE:To improve the response in the transient state of an induction motor by composing a control system with the differentiated secondary crossing magnetic flux as the component of the secondary crossing magnetic flux in a perpendicular direction. CONSTITUTION:A speed reference from a speed reference control resistor is inputted through a resistor 23 to a speed controlling operational amplifier 22, the speed feedback signal of the output of a speed detector 13 is further inputted to the amplifier 22, and the output becomes a torque signal T*. When the signal T* is inputted to a divider 26 and is divided by a secondary crossing magnetic flux reference phi2*, the output becomes an armature current signal I2*. A slip frequency Somegae* and the output (1-S)omegae of the detector 13 are added by an adder 29, which in turn outputs a primary frequency signal omegae*. |
