| 摘要 |
PURPOSE:To enable a motor to be carefully controlled by selecting a magnetic flux deviation vector between a primary interlinkage magnetic flux vector command value and a primary magnetic flux vector found with arithmetic operation. CONSTITUTION:There are 27 kinds of momentary space voltage vectors to be obtained by a three-phase three-value level inverter, and among them, 19 kinds V0-V18 are independently set. A complex plane is divided to be confronted with magnetic flux vectors phi0-phi18 obtained from the independent momentary space voltage vectors and a control sample period which are multiplied by each other, and it is identified which area the magnetic flux vectors are included in, and the magnetic flux vectors confronted with the area, namely, the momentary space voltage vectors are selected from V0-V18. |
