POWER CONTROLLER FOR GENERATOR

PURPOSE:To start an engine without giving any stress to the engine by providing a plurality of difference proportionally outputting sections respectively having characteristics of different gains to a generating section which generates the controlled variable of the output power of a power generator and switching each output section in corresponding to the loading time of a prime mover. CONSTITUTION:When a generator 5 is started, a switch 3 is selected. In such a state, the value set by means of a setter Ps is compared with the output power W of the generator 5 by means of a checking section, but, since the power W is not detected, the difference value becomes larger and is inputted to a controlled variable generating section (CB) 1. The CB 1 generates the controlled variable corresponding to the difference and inputs the variable to a difference proportionally outputting section (DO) 2 through the switch 3. Since the DO 2 is set to a small gain, a governor 5 slowly rises. Upon completing the starting of the generator 5, another switch 31 is turned on so as to control another DO 21 to a power control loop. The DO 21 is set to a large gain, the power can be controlled to a fixed level even when the load power changes.