Method and device for correcting lateral deviation of permanent magnet magnet group in maglev traffic equipment

• Main Authors: MA QIWEN, ZHENG XINXIN, DENG YONGFANG, DENG BIN, YANG MUNAN, ZHOU FAZHU, HUANG CHEN
• Format: Patent
• Language: Chinese; English
• Published: 08.01.2019
• Subjects: ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; PERFORMING OPERATIONS; TRANSPORTING; VEHICLES IN GENERAL

The invention provides a method and a device for correct lateral deviation of a permanent magnet group in a maglev traffic device. The device includes a control unit, a track, a permanent magnet, a sensor and an electromagnet. The invention provides a levitation force through magnetic mutual exclusion between the permanent magnet and the track, A closed-loop control system is formed by a sensor, acontrol unit and an electromagnet. The control unit in the closed-loop control system performs PID operation on the data obtained by the sensor to obtain a decreasing current, and the current excitesthe electromagnet to generate a magnetic field and gradually corrects the lateral bias of the magnet. The PID control method can gradually reduce the force of the magnetic field generated by the excitation current on the bogie, As that bogie move more and more slowly, the system can also be cushioned and protect, so that the magnetic field excited by the bogie can keep the permanent magnet arrayof the track from contactin