VOLTAGE CONTROLLER FOR GENERATOR

PURPOSE:To eliminate the adverse influence to a load by switching between an automatic operation system and a manual operation system without shock. CONSTITUTION:A PI regulator 2a outputs a deviation between the voltage set value of a voltage setter 8 and the voltage of a generator 1 under the automatic operation mode condition, and a PI regulator 15 applies a deviation between the output of the regulator 2a and a field current If to a firing pulse generator 4. At this time, a manual regulator 3a becomes a P regulator which has a gain 1, and stores the output of the regulator 15 in a capacitor C2. The regulator 3a applies a deviation between a field current set value and the field current If to a firing pulse generator 4 under the manual operation mode condition. At this time, the regulator 15 for the automatic operation becomes a P regulator which has a gain 1, and the output of the regulator 3a is stored in a capacitor C3. The regulator 3a becomes a regulator which has a gain 1, and the set value of a field current setter 9 in the capacitor C1.