Engine operated generator

Abstract

A generator system is arranged to respond to a variation in the load with a generous margin regardless of a change in the output of the generator or the engine due to degradation with the passage of time. The output current of the generator 1 is rectified by a converter 3 composed of thyristors in a bridges configuration of which the direct current output is converted by an inverter 4 into an alternating current at a commercial frequency and connected to a load 5. The engine speed is controlled so that the conduction angle of the thyristors in the converter 3 can be held at a target degree. As the target degree stays within a range smaller than the maximum limit, the generator runs with a margin thus readily responding to a variation in the load. When the throttle opening is excessively opened, the target conduction angle is decreased to increase a target speed of the engine, hence inhibiting the engine 2 from being overloaded and running at an excessive higher speed.

Dependencies are inferred from the claim text.