DVC-PWM PWM PWM duty control device using level band type DVC-PWM controller for electric generator

摘要

The present invention relates to a PWM duty ratio control device using a DVC-PWM control of a level band structure, in a PWM duty ratio control device using a DVC-PWM control of a level band structure of an AVR that controls an exciter field current of a generator , If generator output voltage V _gen and control command voltage V _gen^* are input, the error value of generator output voltage V _gen and control command voltage V _gen^* ( =V _gen^* -V _gen ) is output voltage comparison unit; The error value is generated by generating an error level band BW with respect to the control command voltage V _gen^* . A level band comparator that forms a control section in comparison with; It is composed of a DVC-PWM driver that forms a PWM duty ratio for each control section formed by the level band comparator, and outputs a PWM duty ratio for each error level section. According to the present invention, there is an advantage in that a PWM duty ratio control device using a DVC-PWM control of a level band structure that can be configured simply because the control response speed is fast and the controller setting gain is simple is advantageous.