Connectors are crucial components of offshore floating photovoltaic platforms. Their connection strength and adjustability directly impact the dynamic response of modular floating platforms. A new connector design has been introduced. Based on the structure of the new flexible connectors, weight factors are assigned to each external spring. This achieves precise adjustment of the connectors’ directional stiffness through additional rigidity. The simulation integrates the dynamic model of the floating platform, connector model, and marine environment model. The time-history response of the first module unit and the peak load on the connector's main shaft are obtained by adjusting various additional stiffness values. Research indicates that high additional stiffness can reduce the shear limit load of the connector's main shaft, but it will increase the tensile and compressive limit load values of the main shaft. An additional stiffness of 100000N/m is applied. The sway amplitude of the module platform decreases by an average of 67%. This reduction is compared to having no additional stiffness. The sway amplitude of the module platform units decreases significantly.