CONTROL CIRCUIT OF POWER CONVERSION CIRCUIT, INTERCONNECTION INVERTER SYSTEM USING THE SAME, AND SINGLE-PHASE PWM CONVERTER SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a control circuit that is capable of performing current control at a high speed and with high precision in a simple configuration and concurrently performing harmonic compensation with a control system of the current control, the control system having linearity and time invariance.;SOLUTION: A control circuit 7 includes a current controller 74 that processes a deviation signal between a single-phase current signal I and a current target value to generate a compensation value signal, and a PWM signal generation section 77 that generates a PWM signal on the basis of the compensation value signal. The current controller 74 performs signal processing with a transfer function designed with H∞ control theory using a frequency weight W including (s²+ω₀²)*{s²+(n*ω₀)²} in its denominator.;COPYRIGHT: (C)2013,JPO&INPIT