Parameter design method of 4-11 LLC resonant converter for crop power generation

The invention discloses a parameter design method of a 4-11 LLC resonant converter for crop power generation, and relates to the technical fields of energy conversion devices, new energy and the like.The design method comprises the steps of acquiring a first resonant frequency fp, a second resonant frequency fr and a transformation ratio n of a transformer TR of the 4-11 LLC resonant converter; determining a first relation and a second relation between resonant parameters Lr, Lm, C1 and C2 of the resonant converter and the first resonant frequency fp and the second resonant frequency fr respectively according to a condition that the LLC resonant converter is fully loaded and resonates at the same frequency in the positive and negative directions or a condition that the LLC resonant converter is unloaded and resonates at the same frequency in the positive and negative directions; and solving the resonant parameters Lr, Lm, C1 and C2 according to the first relation and the second relation. The method disclosed