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An anti-interference control method of a permanent magnet speed-regulating high-voltage three-phase asynchronous motor

A three-phase asynchronous, permanent magnet speed regulation technology, which is applied in motor control, motor generator control, electronic commutation motor control, etc., can solve the problems of complex algorithms, poor broadband interference suppression effect, and difficult engineering implementation, etc., to achieve good Robust performance, strong anti-interference ability, fast response effect

Inactive Publication Date: 2019-01-11
张晓瑜
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Problems solved by technology

[0004] Time-domain and frequency-domain filtering have poor suppression effects on broadband interference; air-space anti-jamming technology can effectively suppress broadband interference, and space-time anti-jamming technology has a higher degree of freedom than pure air-domain anti-jamming technology, but its algorithm is complex Difficult to implement

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  • An anti-interference control method of a permanent magnet speed-regulating high-voltage three-phase asynchronous motor
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  • An anti-interference control method of a permanent magnet speed-regulating high-voltage three-phase asynchronous motor

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Embodiment Construction

[0035] The technical solutions in the embodiments of the present invention will be described clearly and in detail below with reference to the drawings in the embodiments of the present invention. The described embodiments are only some of the embodiments of the invention.

[0036] The technical scheme that the present invention solves the problems of the technologies described above is:

[0037] Such as figure 1 Shown is an anti-interference control method for a permanent magnet speed-regulating high-voltage three-phase asynchronous motor, which includes the following steps: firstly establish a mathematical model of the permanent magnet speed-regulating high-voltage three-phase asynchronous motor, design the integral sliding mode surface according to the mathematical model, and then Design a speed controller based on integral sliding mode according to the integral sliding mode surface; then design a generalized proportional-integral observer for the permanent magnet speed-ad...

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Abstract

An anti-interference control method of a permanent magnet speed-regulating high-voltage three-phase asynchronous motor disclosed in the invention includes such step as setting up mathematical model ofpermanent magnet speed-regulating high-voltage three-phase asynchronous motor, designing integral sliding surface accord to mathematical model, and designing speed controller based on integral sliding surface according to integral sliding surface. Then a generalized proportional-integral observer is designed to estimate the disturbance and use it to compensate the disturbance. Finally, a compoundintegral sliding mode speed controller is established to divide the output signal of the permanent magnet speed-regulated high-voltage three-phase asynchronous motor into two paths, which are recorded as follows: the first path signal and the second path signal. The first signal and the second signal after frequency domain anti-jamming processing are respectively processed by inverse Fourier transform and overlapping processing, and the signal after overlapping processing is the output data after frequency domain anti-jamming processing; the signal after overlapping processing is the output data after frequency domain anti-jamming processing. Then the weighted processing is carried out, that is, the anti-interference processing is completed. The invention improves the anti-jamming performance and the stability.

Description

technical field [0001] The invention belongs to the technical field of motor control, and in particular relates to an anti-interference control method for a permanent magnet speed-regulating high-voltage three-phase asynchronous motor. Background technique [0002] With the development of aerospace, medical devices, robotics, manufacturing, etc., more and more fields have higher and higher requirements for precision. The permanent magnet variable-speed high-voltage three-phase asynchronous motor has the advantages of simple structure, small size, low quality, high power density, and long life, and is widely used in various fields. However, there are various disturbances in the actual control system, such as system parameter changes, load mutations, unmodeled dynamics, friction interference, signal acquisition errors and other disturbances. [0003] In order to suppress interference and improve the control accuracy of the motor speed, experts have successively proposed vario...

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Application Information

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IPC IPC(8): H02P21/00H02P21/13
CPCH02P21/0007H02P21/13H02P2205/07
Inventor 张晓瑜
Owner 张晓瑜
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