| 摘要 |
<p>PURPOSE:To operate an induction generator apparently a a voltage source by controlling a secondary current so that a primary voltage becomes constant even if a load is varied. CONSTITUTION:The output of a primary angular frequency detector 9 and the output of a rotating angle frequency detector 11 are input to a vector divider 13. The primary current vector i1 of a wound-rotor type induction machine 1 is detected by a detector 10, and the outputs of the detectors 10 and 11 are input to a vector divider 15. The reference value phi1 of a primary crossing magnetic flux vector is multiplied by 1/M by a coefficient unit 12, and the outputs of the unit 12 and the divider 13 are input to a vector multiplier 14. The output signals of the divider 15 and the multiplier 14 are led to a coefficient unit 16 and a vector subtractor 17 to obtain the reference value i2 of a secondary current vector, and it is converted by 2-phase/3-phase converter 18 to 3-phase reference values.</p> |
