A high-lift actuation system for differentially actuating a plurality of high-lift surfaces of an aircraft is disclosed. An exemplary high-lift actuation system includes a plurality of independent drive devices for individually actuating the plurality of high-lift surfaces. The independent drive devices may include a power drive unit (PDU) arranged between an inboard actuator and an outboard actuator of a respective high-lift surface and an interconnecting driveline. The PDU of at least one independent drive device may include two motors having a respective motor output coupled together in a torque summing arrangement. A controller may be implemented with two independent control channels respectively coupled to one of the two motors.