| 摘要 |
PURPOSE:To obtain enough magnetic flux correction effect by quickening the response speed of a circuit, which inputs a field deviation into a field current controller, than the response speed of a circuit, which inputs the field deviation into a flux partial current controller. CONSTITUTION:For the output from a magnetic flux controller 8, the sudden change is relaxed by a lamp circuit 12, and is input into a computing element 13 as the field current reference if** for compensation control. The computing element 13 operates the field deviation efd between this field current reference if** and the actual deviation efd. And the time constant of a lamp circuit 12 is set to a relatively quick value, according to the high-speed responsiveness of an electronic circuit. Accordingly, based on the new flux partial deviation, to which field deviation efd is added, for the operation of a flux partial current controller 7, the control responsiveness at higher speed than ever becomes possible making the most use of the essential high-speed responsiveness. Thus, the correction of a field flux by the flux partial current id of an armature current can be performed surely over the wide magnetic flux range. |
