CONTROLLER FOR POWER CONVERTER

摘要

PURPOSE: To continuously operate a controller for power converter without protection stopping by overcurrent protection caused by the biased magnetization of a transformer. CONSTITUTION: Concerning the controller for plural power converters connected through plural transformers to a power system, electricity required for calculating bias in the magnetic flux of the iron cores of transformers is detected 41, an output voltage DC component correction control part 42 is provided to calculate the correction amount of an output voltage DC component from the power converter based on this detected electricity quantity, and a DC component correcting non-interference part 43 is provided to calculate the final correction amount of the output voltage DC component from this power converter by adding the output signal of the output voltage DC component correction control part 42 at any power converter excepting for this power converter to the output signal of its output voltage DC component correction control part 42.