| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a control apparatus which is of a simple constitution and which can be miniaturized by a method wherein the magnitude of a load is judged based on the rotational speed of an engine, and an output voltage is controlled according to the deviation value of the rotational speed. SOLUTION: For example, an engine controller 3 starts to control the output voltage (set voltage) of a generator 4 by an automatic voltage regulator 6 when the rotational speed of an engine becomes lower than the rotational speed of the engine at a prescribed control start. Then, the engine controller 3, to which the measured value of the rotational speed is inputted from a rotational-speed detector 2, computes the deviation value between the rotational speed of the engine at the control start and the measured value of the rotational speed. Then, on the basis of the deviation value, the output voltage of the generator 4 is controlled, and the load of the engine is reduce. Consequently, the rotational speed is restored quickly. When the load is transient quickly, the time in which the output voltage of the generator 4 and the change width of a frequency or the like are changed is suppressed to a minimum, and the generator 4 can be shifted to a stable operation in a short time. In addition, since the rotational- speed detector 2 is small, this control apparatus can be manufactured at low costs and to be small.</p> |
