Redundancy control system of air suspension centrifugal fan

The invention discloses a redundancy control system of an air suspension centrifugal fan. The preset parameter input module is used for inputting preset operation parameters of the fan; the operation parameter acquisition module is used for acquiring actual operation parameters of the fan in real time; the control module is used for receiving the preset operation parameters and the actual operation parameters and comparing the preset operation parameters and the actual operation parameters to obtain a control instruction; the frequency converter is used for adjusting output frequency according to the control instruction; the knob control module is used for manually adjusting the output frequency of the frequency converter, the control mode switching module is used for switching control modes and enabling only one control mode to be effective, the control module is communicated with the preset parameter input module, the operation parameter acquisition module and the frequency converter, and the knob control m