Parallel inverter system and impedance compression method thereof

The invention discloses a parallel inverter system and an impedance compression method thereof, and relates to a high-frequency inverter impedance compression circuit and a modulation method thereof. The invention relates to a parallel inverter system, in particular to a parallel inverter system, and aims to solve the problems that when an existing megahertz inverter adopts a passive network for impedance adjustment, only a variable resistive load can be limited, and when the load contains a variable capacitive or inductive component, an input impedance range is in a divergent trend, the parallel inverter system comprises a first impedance compression branch, a second impedance compression branch and a third impedance compression branch, the first impedance compression branch is used for compressing load impedance to a first impedance compression branch impedance interval; the value of the central point of the impedance interval of the first impedance compression branch is recorded as zGoalU; the second imped