| 摘要 |
<p>PURPOSE:To always run an electricity generator within a prescribed output, by reducing or augmenting a generator output instruction when the output of the electricity generator exceeds an upper limit or falls below a lower limit. CONSTITUTION:When a signal Vx produced by a power detector 5 and proportional to the output of an electricity generator exceeds an upper limit Vu, a comparator 8 produces an output. At that time, a relay R1 is energized, a normally open contact R1 is closed, and a decrease instruction Ca is applied to an instruction setting unit 13 to reduce the level of a control instruction S. When the signal Vx falls below an a lower limit VL, another comparator 9 produces an output. At that time, another relay R2 is energized, a normally open contact R2 is closed, and an increase instruction Co is applied to the instruction setting unit 13 to raise the level of the control instruction S. The output of the electricity generator is thus kept within a range. This results in preventing the overload run of the generator.</p> |
