This study focuses on a modified droop control strategy, which extends the conventional current-mode droop control approach by incorporating nonlinear characteristics. The idc–vdc² strategy inputs the difference between the square of the nominal voltage and the square of the DC voltage to generate the DC current reference, thereby shaping the droop characteristic. In comparison to the traditional current-mode droop strategy, this approach exhibits superior bus voltage regulation performance, thus improving steady-state performance. Furthermore, the paper conducts a comparative analysis of the current sharing accuracy and dynamic performance between the two methods. Theoretical analysis is supported by case studies, validating the proposed strategy.