Suspension control algorithm of permanent magnetic electromagnetic maglev train when passing track steps

Abstract

The invention discloses a suspension control algorithm of a permanent magnetic electromagnetic maglev train when passing track steps. The steps at a joint of maglev line tracks easily emerges, and a track dislocation is regarded as a step mutation process for consideration; a clearance is set to compensate the height of the steps so as to keep in accordance with an actual clearance, and then the set clearance is transitioned to a normal value; the value of the actual clearance is also tracked back to the normal value, so that the suspension performance fundamentally remains the same when the maglev train passes the track steps. According to the suspension control algorithm of the permanent magnetic electromagnetic maglev train when passing the track steps, the problem of track step passing of the permanent magnetic electromagnetic medium and low-speed maglev train can be effectively solved.

Description

technical field [0001] The invention relates to the field of maglev trains, in particular to a levitation control algorithm for a permanent-magnet electromagnetic maglev train passing over track steps. Background technique [0002] Permanent magnet electromagnetic maglev trains add permanent magnet electromagnetic hybrid levitation magnets to pure electromagnets, thereby significantly reducing levitation energy consumption, reducing equipment heat generation, and effectively improving system carrying capacity. Due to roadbed settlement, processing and installation errors, etc., the maglev line is prone to steps at the joints of the track, which is often referred to as the phenomenon of staggered steps. The existence of track steps is unavoidable, and its impact on the suspension system cannot be ignored. When the maglev train passes by the wrong track, if no targeted control method is adopted, the suspension system will fluctuate or even collapse. At present, the sensor pro...

AI Technical Summary

Problems solved by technology

The existence of track steps is unavoidable, and its impact on the suspension system cannot be ignored. When the maglev train passes by the wrong track, if no targeted control method is adopted, the suspension system will fluctuate or even collapse

At present, the sensor probes used on permanent magnet electromagnetic maglev trains are relatively small, and the measured gap is a local point, which means that the sensor is very sensitive to track irregularities, and the suspension system is easy to introduce interference from the input end

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