Magnetic suspension control unit based on non-linear tracing differentiator

The utility model discloses a magnetic suspension control unit based on a non-linear tracing differentiator. The magnetic suspension control unit based on the non-linear tracing differentiator comprises a master control unit, a suspension electromagnet unit and a sensor unit for collecting clearance state signals, wherein an output end of the master control unit is connected with the suspension electromagnet unit, the output end of the sensor unit is connected with an input end of a tracing differentiator, the output end of the tracing differentiator is connected with the master control unit, the tracing differentiator filters real time clearance state signals sent from the sensor unit and then obtains the speed signals, the speed signals are output to the master control unit, and the master control unit generates control signals to the suspension electromagnet unit according to the speed signals. The magnetic suspension control unit is a magnetic suspension control unit based on the non-linear tracing differentiator with simple and compact structure, low cost, high control precision and wide adaptable range.