| 摘要 |
<p>PURPOSE:To enable a generator quickly to perform the juxtaposed reentry to a system, keeping no-load effective exciting condition even when the load is cut out, by giving no frequency beyond allowable limits to a frequency converter. CONSTITUTION:To a single feeder to send control signals in a frequency converter 9 are provided the first reference frequency device 11a where the frequency in the system constitutes a function a and the second reference frequency device 11b generating specified frequency. In addition, in a circuit to control the frequency converter 9 is provided a changeover switching device 16 where in the normal operation of a variable-speed generator 5 the output of the first frequency device 11a turns out the control signal of a frequency control device 10 and in the load runout of the variable-speed generator 5 the output of the second reference generator 11b turns out the control signal of the frequency control device 10.</p> |
