| 摘要 |
PURPOSE:To reduce the transient responce for rapid load variation by a method wherein a saturation preventive means is provided, and an output level of a proportional control means is maintanined under a setting volume condition when a detected temperature is varied for the setting temperature more than the designated value. CONSTITUTION:When an operation of a PID control means 1 is stopped momentarily by an output from a integrator AI as the output V of the PID control means 1 and by a transient response means 4, the open degree of a proportional valve 2 is compared with a reference electric voltage Valpha correspond to the previous setting supply value. A saturation preventive means 5 is provided, that is, when the output V is outputted exceeding the reference electric voltage Valpha, the output V from the integrator AI is fed back to the input side of the integrator AI for maintaining the output V under the reference electric voltage Valpha level without regard to the inputted electric voltage thereof. Thus, the saturation in the operation of the integrator AI can be prevented by said saturation preventive means. Thereby, the burning control device provided with a control means having a less transient response for rapid load variation can be obtained. |
