| 摘要 |
A quick response vector control method which is one of methods for controlling a speed of an induction motors without a speed detector; in which a voltage of the motor is detected to resolve into a vector component ed parallel with an exciting current component vector of a primary current and a vector component eq orthogonal to said exciting current component vector, and a frequency of the primary current is controlled to maintain the vector component ed at zero, while at the same time the primary current is controlled corresponding to a difference between the vector component eq and the speed command signal. |
