GAIN-SCHEDULING METHOD FOR GRID-CONNECTED INVERTERS USING A GRID-IMPEDANCE ESTIMATION AND GAIN-SCHEDULING METHOD THEREOF

摘要

PURPOSE: the parameter adjustment method for gird-connected inverter estimates that parameter adjustment method is arranged in the variation that covibration decays and depends on system impedance using grid impedance. ;CONSTITUTION: a kind of controller gain regulating device includes: power switching controller (10), and system connects system unit (20), an impedance estimation unit (30) and gain adjustment unit (40). System connection system unit includes LCL filter F) it is applied to during power switch operates with LCD optical filters decaying harmonic wave according to the controller of the control operation of system load. ;The 2011 of copyright KIPO submissions