To solve the voltage fluctuation and limit crossing problems of distribution networks brought by the extensive access of new energy sources, a dynamic reactive power-voltage control method is proposed connected with PV stations and static var generators (SVGs) to achieve the goal of cooperative voltage regulation of multiple reactive power sources under disturbance. First, reactive power-voltage control small-signal models are derived for PV stations and SVGs. Second, the voltage control models of different types of reactive power sources are unified by analogical equivalence, and the overall system voltage control model is established by combining with system voltage sensitivity. A system model prediction controller is designed considering the influence of system state change on control parameters and taking into account the reactive power output constraint of each piece of equipment. Finally, based on simulation of the IEEE 33-node system, the results show the proposed method can quickly and effectively suppress voltage fluctuations under both PV output and load fluctuations. This provides a theoretical basis for fast cooperative voltage control in active distribution networks.