Traction-guide decoupling control method for bilateral hollow linear synchronous motor

A linear synchronization and guidance control technology, applied in the direction of AC motor control, single motor speed/torque control, current controller, etc., can solve the problems of not having the characteristics of active adjustment guidance system, low efficiency of traction guidance decoupling control, etc.

Active Publication Date: 2021-07-23
NAT UNIV OF DEFENSE TECH
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  • Claims
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Problems solved by technology

With the continuous acceleration of maglev traffic trains, the guidance of air-core linear motors in the electric levitation mode must adopt a non-contact electromagnetic guidance method. The existing zero-flux coil and me

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  • Traction-guide decoupling control method for bilateral hollow linear synchronous motor
  • Traction-guide decoupling control method for bilateral hollow linear synchronous motor
  • Traction-guide decoupling control method for bilateral hollow linear synchronous motor

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Embodiment Construction

[0076] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0077] The bilateral air-core linear synchronous motor traction-guide decoupling control method provided by this application can be applied to such as figure 1 In the application environment shown, the T-type mover bilateral stator air-core linear synchronous motor is used as the object, specifically including mover 1, base 2, superconductor / permanent magnet 3, traction / guide coil 4, and its structure refers to the prior art. Not described here.

[0078] In one embodiment, such as figure 2 As shown, a bilateral air-core linear synchronous motor traction-guide decoupling control method is provided, including the following steps:

[0079] Step S300: Obtain the expected speed value, the expected value of the mover offset, the speed value output b...

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Abstract

The invention discloses a traction-guide decoupling control method for a bilateral hollow-core linear synchronous motor. The method comprises the following steps: acquiring an expected speed value, an expected rotor offset value, speed values output by motors and rotor offset values; acquiring a first q-axis voltage and a second q-axis voltage of motor windings at the two sides according to the expected speed value, the speed values output by the motors and a pre-established motor electromagnetic force model; acquiring a first d-axis voltage and a second d-axis voltage of the motor windings at the two sides according to the expected rotor offset value, the rotor offset values output by the motors and a preset guide control equation; and acquiring the three-phase voltage of the motor at one side through conversion according to the first q-axis voltage and the first d-axis voltage, acquiring the three-phase voltage of the motor at the other side through conversion according to the second q-axis voltage and the second d-axis voltage, and conducting traction-guide decoupling control over the motors according to the three-phase voltage of the motor on one side and the three-phase voltage of the motor on the other side. Thus, independent control of traction and guiding of the motors is realized.

Description

technical field [0001] The invention relates to the field of motors, in particular to a traction-guide decoupling control method for a double-sided air-core linear synchronous motor. Background technique [0002] With the continuous development of maglev transportation technology, linear motors are used as the traction system of maglev transportation, and the problem of motor guidance in the levitation state has become a very critical technical issue. In general industrial applications, motor guidance is generally realized by mechanical limit structures or other auxiliary structures. For example, mechanical limit structures are used in industrial machine tools, and levitation guide electromagnets are used in medium and low-speed maglev traffic. With the continuous acceleration of maglev traffic trains, the guidance of air-core linear motors in the electric levitation mode must adopt a non-contact electromagnetic guidance method. The existing zero-flux coil and metal inductio...

Claims

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Application Information

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IPC IPC(8): H02P6/08H02P6/28H02P6/34H02P25/064
CPCH02P6/08H02P6/28H02P6/34H02P25/064
Inventor 陈强李杰贾真周丹峰余佩倡王连春金玉鑫
Owner NAT UNIV OF DEFENSE TECH
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