Distributed feedforward active control system

The invention discloses a cascadable feedforward active control unit and a distributed active control system consisting of the units in a cascading mode. The unit comprises a reference signal condition module, an error signal condition module, a digital signal processing module, a filtering module, a control signal drive module, a cascading communication module and a serial communication module, adopts a feedforward single-channel adaptive control algorithm and has a good control effect; the control system is stable; the unit can be independently used as a single-channel feedforward active control system; the cascading communication module of the unit is connected with the other units, so that the distributed feedforward active control system consists of a plurality of units in a serial cascading mode; the total number of channels of the control system can be arbitrarily increased and reduced according to the requirement; information transmission among the units is realized through the cascading communication