| 摘要 |
Provided is a confluent control system capable of switching smooth transfers between a single drive and a confluent drive while causing no shock. When the flow rate is reduced to a necessary value or less by cut-off characteristics, the operation of a second variable flow rate control device (2) is stopped to save the energy. A control input distribution unit (51) drives only a first motor (12) with a first velocity signal (V1) through a first driver (13), when a control input (Vq) from a pressure flow rate control unit (40) is at or lower than the maximum velocity (Vmax1) of the first motor (12). When the control input (Vq) exceeds the maximum velocity (Vmax1) of the first motor (12), on the other hand, the control input distribution unit (51) drives the first motor (12) at the maximum velocity (Vmax1) through the first driver (13), and drives a second motor (22) with a second velocity signal (V2 (V2 = Vq - Vmax1)) through a second driver (23). As a result, the confluent control system can make a smooth transfer from the single drive to the confluent drive without any shock. |
