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Chaos stabilization control method for permanent magnet synchronous motor based on dynamic surface sliding mode control

A permanent magnet synchronous motor and stabilization control technology, which is applied in the control of generators, electromechanical brakes, motors, etc., can solve problems such as system matching conditions, uncertain sliding mode control obstacles, etc., to suppress chaos, simplify design, Realize the effect of calming control

Active Publication Date: 2017-12-29
百恒石油装备有限公司
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Problems solved by technology

However, the sliding mode control needs to meet the matching conditions in the design process, and the uncertainty of the actual system matching conditions has become an obstacle to the sliding mode control design

Method used

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  • Chaos stabilization control method for permanent magnet synchronous motor based on dynamic surface sliding mode control
  • Chaos stabilization control method for permanent magnet synchronous motor based on dynamic surface sliding mode control
  • Chaos stabilization control method for permanent magnet synchronous motor based on dynamic surface sliding mode control

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Embodiment Construction

[0048] The present invention will be further described below in conjunction with the accompanying drawings.

[0049] refer to Figure 1-Figure 5 , a chaotic control method for permanent magnet synchronous motor based on dynamic surface sliding mode control, including the following steps:

[0050] Step 1, establish the chaotic model of permanent magnet synchronous motor;

[0051] Establish the chaotic model of the permanent magnet synchronous motor system shown in formula (1), initialize the system state and related parameters;

[0052]

[0053] Among them, ω, i q i d are the state variables, which are the angular velocity of the motor, the stator current of the quadrature axis and the stator current of the direct axis; and is the external input, respectively, the external load torque, the quadrature axis component and the direct axis component of the stator voltage, satisfying Both σ and γ are operating parameters of the system;

[0054] Taking the angular velocit...

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Abstract

The invention discloses a PMSM chaotic stabilized control method based on a dynamic surface sliding mode, comprising steps of establishing a PMSM chaotic model and initial condition determination, splitting the PMSM system into two subsystems for improving the control effect, calculating the tracking error of the control system, a sliding surface and differential calculus based on the dynamic surface sliding mode control method, estimating an unknown parameter based on an adaptive law and designing the controller input according to the unknown parameter. The invention provides a dynamic surface sliding mode control method for realizing the PMSM chaotic stabilized control, realizes the chaotic state of the system is stabilized to a balance point, and improves the control performance of the system.

Description

technical field [0001] The invention belongs to the technical field of permanent magnet synchronous motor control, and relates to a method for controlling chaos stabilization of permanent magnet synchronous motors based on dynamic surface sliding mode control, in particular to a method for performing chaos stabilization control for chaotic behavior in permanent magnet synchronous motors. Background technique [0002] Permanent magnet synchronous motor is a typical multivariable, strongly coupled high-order nonlinear system, which has been widely used in high-performance systems such as robots, aerospace vehicles and servo turntable control. However, research in recent years has shown that under some specific parameters and working conditions, permanent magnet synchronous motors will appear complex irregular motions, that is, chaotic behavior. The existence of chaotic behavior in permanent magnet synchronous motors will not only affect the stability and safety of system opera...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P21/00H02P21/14
CPCH02P21/0007H02P21/14H02P2207/05
Inventor 陈强施琳琳陶亮王耀
Owner 百恒石油装备有限公司
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