Method and system for controlling levitation force decoupling for normally-conducting magnetically levitated trains
A maglev train and decoupling control technology, which is applied in electric traction, electric vehicles, vehicle components, etc., can solve the problems of poor accuracy and stability of the suspension control system, and achieve the effect of improving accuracy
Active Publication Date: 2015-05-13
ZHUZHOU ELECTRIC LOCOMOTIVE CO LTD
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[0008] It can be seen that due to the influence of the coupling of two electromagnets, the expected levitation force F 1 , F 2 and actual suspension force F 1 ', F 2 ’ are not equal, and F 1 'includes the levitation gap signal δ of the second electromagnet 2 , F 2 ′ contains the levitation gap signal δ of the first electromagnet 1 , this coupling interference phenomenon will cause the two electromagnets to interact with each other, resulting in poor accuracy and stability of the suspension control system
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[0021] In order to make the above objects, features and advantages of the present invention more comprehensible, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0022] In order to facilitate the understanding of the technical solution of the present invention, it is necessary to introduce the principle of the present invention here:
[0023] Such as figure 1 As shown, first establish the Y-δ coordinate system, the Y axis is along the longitudinal direction, and coincides with the lower surface of the track shown in the figure, the positive direction of the δ axis is vertically downward, the longitudinal length of the electromagnet module is L, and the width of the pole surface is W, the gap between one end and the track is δ 1 , the gap between the other end and the track is δ 2 , the angle between the electromagnet module and the track is θ.
[0024] When...
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The invention discloses a method and a system for controlling levitation force decoupling of normally-conducting magnetically levitated trains. The method includes: prestoring a given current correction coefficient calculation formula of a first electromagnet; obtaining a first levitation gap feedback value between a first end of the first electromagnet and a magnetically levitated train rail; calculating a difference between the first levitation gap feedback value and a given levitation gap value of the first electromagnet; determining a given current value of the first electromagnet according to the difference; obtaining a second levitation gap feedback value between a second end of a second electromagnet and the magnetically levitated train rail; using the first levitation gap feedback value and the second levitation gap feedback value as known quantity to invoke the prestored given current correction coefficient calculation formula of the first electromagnet to calculate a correction coefficient of the given current value of the first electromagnet; and correcting the given current value of the first electromagnet according to the correction coefficient to remove the levitation coupling action of the first electromagnet and the second electromagnet. By the method, accuracy of levitation control is improved.
Description
technical field [0001] The invention relates to the field of maglev control, in particular to a levitation force decoupling control method and system for a normally conducting maglev train. Background technique [0002] Maglev trains use electromagnetic force for support and guidance, and are equipped with linear motors for drive. There is no mechanical contact between the vehicle and the track, so it has significant advantages such as high running speed, low noise, strong climbing ability, safety and comfort, and less maintenance. It is the future One of the development directions of high-speed and green transportation. [0003] Maglev trains can be mainly divided into normal conduction type and superconducting type, among which the normal conduction type is represented by the German high-speed maglev train TR (Trans Rapid) and the Japanese medium-low speed maglev train HSST (High Speed Surface Transport). [0004] At present, on the existing normally-conducting maglev t...
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IPC IPC(8): B60L13/04
Inventor 张文跃佟来生彭奇彪罗京罗华军姜宏伟陈启发
Owner ZHUZHOU ELECTRIC LOCOMOTIVE CO LTD