Linear active disturbance rejection control-based permanent-magnet synchronous motor speed regulation system

A permanent magnet synchronous motor, linear self-disturbance rejection technology, applied in the direction of single motor speed/torque control, etc., to achieve the effect of simplifying the system structure, improving anti-interference and robustness, and quick response

Inactive Publication Date: 2018-01-19
ANHUI WOLF POWER TECH
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Problems solved by technology

[0005] In order to solve the problem that the nonlinear active disturbance rejection control is difficult to make the system achieve high-precision control in the above

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  • Linear active disturbance rejection control-based permanent-magnet synchronous motor speed regulation system

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Embodiment Construction

[0018] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0019] A permanent magnet synchronous motor speed control system based on linear active disturbance rejection control, such as figure 1 As shown, it includes a first-order TD module 1, a rotational speed signal processing module 2, a first-order LSEF module 3, a disturbance compensation processing module 4, a DTC module 5, a PMSM speed adjustment module 6, a first control input gain module 7, and a second control input Gain module 8, first-order ESO module 9;

[0020] The input end of the speed first-order TD module 1 is c...

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Abstract

The invention discloses a linear active disturbance rejection control-based permanent-magnet synchronous motor speed regulation system. The linear active disturbance rejection control-based permanent-magnet synchronous motor speed regulation system comprises a first-order TD module, a rotational speed signal processing module, a first-order LSEF module, a disturbance compensation processing module, a direct torque control (DTC) module, a permanent magnet synchronous motor (PMSM) speed modulation module, a first control input gain module, a second control input gain module and a first-order ESOmodule. A feedback inhibition anti-integral saturation method is applied to an active disturbance rejection controller, so that the system has anti-integral saturation performance; compared with a traditional active disturbance rejection controller, the system has anti-integral saturation capability, integral saturation of the controller is prevented from affecting performance of the controller,the rate of withdrawing integral saturation is controllable, and the active disturbance rejection control strategy can be further optimized; and meanwhile, based on linear active disturbance rejectioncontrol, the system structure can be simplified, the anti-interference performance and the robustness of the motor speed regulation system can be improved by linear active disturbance rejection control, and favorable combination of rapid response and no overshoot is achieved.

Description

technical field [0001] The invention belongs to the field of permanent magnet synchronous motors, and in particular relates to a permanent magnet synchronous motor speed regulation system based on linear active disturbance rejection control. Background technique [0002] Permanent magnet synchronous motors are widely used in the field of transmission because of their small size, high efficiency and energy saving, high power density, and light weight. However, it has the characteristics of multi-variable, strong coupling, variable parameters, and nonlinearity, and traditional control algorithms are difficult to meet its high-performance control requirements. [0003] The main control strategies of permanent magnet synchronous motors are vector control and direct torque (DTC) control. Some people have applied ADRC to the simulation research of vector control of permanent magnet synchronous motors. Active disturbance rejection control is a new type of control technology that d...

Claims

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Application Information

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IPC IPC(8): H02P6/06
Inventor 徐修昆
Owner ANHUI WOLF POWER TECH
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