Composite type constant current control method based on cascade type constant current source topology

The invention provides a compound type constant current control method based on cascade type constant current source topology, and belongs to the field of power electronic control, a carrier signal is composed of N carriers with the same amplitude and a modulation wave, and N is the same as the circuit topology level; n carriers are divided into x groups, and each group has y phases, namely N = x * y; carrier signals among the groups are formed by stacking and arranging carriers with the same amplitude and the same phase in the vertical direction, and carrier signals among the groups are formed by staggering carriers with the same amplitude at a certain angle in the horizontal direction, that is, carrier in-phase stacking arrangement is adopted among the groups, carrier phase-shifting arrangement is adopted in the groups, and modulation waves are closed-loop control output signals; the amplitude is x times of the carrier amplitude; the x groups of carriers are vertically arranged and then are compared with th