A kind of suspension control method of maglev train

Abstract

The invention relates to a magnetic-levitation train levitation control method used for controlling currents of tandem coil groups at the two ends of an electromagnet of a magnetic-levitation train.According to the method, periodic control is adopted, and the following steps that 1, data signals and sensor diagnosis signals of levitation sensors at the two ends of the electromagnet are obtained; 2, whether all data is out of order or not is judged respectively according to the sensor diagnosis signals, and selection of a levitation control signal is conducted according to a judging result; 3, expected values of the currents needed by the tandem coil groups at the two ends are calculated according to the levitation control signal; 4, self diagnosis signals of a first end master controller and a second end master controller are obtained and sent to a redundant controller, and the currents of the tandem coil groups are controlled according to diagnosis are executed in each control period.Compared with the prior art, according to the magnetic-levitation train levitation control method, fault diagnosis information and the redundant controller are combined, when the master controllers or the levitation sensors are out of order, the magnetic-levitation train can still work normally, the outage time is reduced, and the availability of the magnetic-levitation train is improved.

Description

technical field [0001] The invention relates to a levitation control method, in particular to a maglev train levitation control method, and belongs to the technical field of levitation control using electromagnetic levitation or permanent magnet electromagnetic hybrid levitation. Background technique [0002] The maglev train is a new type of rail transportation with outstanding features such as low operating noise, strong climbing ability, small turning radius, high safety and reliability, low operation and maintenance costs, and low construction cost. It uses electromagnetic suction to suspend the car body above the track, and maintains a non-contact state between the train and the track, which overcomes the contact wear between the two and reduces the running resistance. The suspension controller is the actuator to realize the suspension of the vehicle. It changes the internal current of the suspension electromagnet according to the air gap between the suspension electrom...

AI Technical Summary

Problems solved by technology

However, this redundant design also has obvious disadvantages, such as doubling the number of suspension controllers, increasing costs, low reliability, difficult maintenance, etc., as well as technical problems such as communication between the two, fault judgment, and work takeover judgment.

Images