METHOD TO INCREASE POWER RATIO OF ASYNCHRONOUS GENERATOR WITH SHORT-CIRCUITED ROTOR DURING OPERATION IN PARALLEL WITH GRID

摘要

FIELD: electricity.;SUBSTANCE: in the method to increase a power ratio reactive and active components of current are redistributed inside each phase of an asynchronous generator with a short-circuited rotor during its operation in parallel with the grid. The reactive component of the phase current is reduced by lowering the linear voltage of the grid relative to the rated linear voltage of the generator by one stage based on the following: therefore it becomes possible to increase the generator load and its power ratio. The active component of the phase current increases within the limits of the rated value of phase current during operation of an asynchronous generator by increasing power supplied to a shaft of the asynchronous generator at the side of its drive engine of a power plant to convert mechanical energy into electrical one.;EFFECT: increased power ratio of an asynchronous generator.;2 tbl