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Anti-interference control method for three-phase asynchronous motor with frequency conversion and speed regulation in marine

A three-phase asynchronous, frequency conversion speed regulation technology, applied in the direction of motor control, motor generator control, AC motor control, etc., can solve the problems of poor broadband interference suppression effect, difficult engineering implementation, complex algorithm, etc., and achieve strong anti-interference ability , fast response and good robust performance

Active Publication Date: 2021-07-30
宏洋电机(威海)有限公司
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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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  • Anti-interference control method for three-phase asynchronous motor with frequency conversion and speed regulation in marine
  • Anti-interference control method for three-phase asynchronous motor with frequency conversion and speed regulation in marine
  • Anti-interference control method for three-phase asynchronous motor with frequency conversion and speed regulation in marine

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Embodiment Construction

[0038] 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.

[0039] The technical scheme that the present invention solves the problems of the technologies described above is:

[0040] Such as figure 1 Shown is an anti-interference control method for a three-phase asynchronous motor with frequency conversion and speed regulation for ships, which includes the following steps: firstly, establish a mathematical model for a three-phase asynchronous motor with frequency conversion and speed regulation for ships, such as figure 2 As shown, the marine frequency conversion speed regulation three-phase asynchronous motor includes a base 8, a stator assembly 9, a rotor assembly 10, a junction box assembly 7, a fan 18 with a salt spray filter 17, a rear end cover 1, and a fr...

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Abstract

The present invention claims protection of an anti-interference control method for a marine frequency conversion speed regulation three-phase asynchronous motor, which includes the following steps: firstly establish a mathematical model of a marine frequency conversion speed regulation three-phase asynchronous motor, design an integral sliding surface according to the mathematical model, and then according to the integral The sliding mode surface design is based on the integral sliding mode speed controller; then the generalized proportional integral observer is designed to estimate the disturbance, which is used for disturbance compensation; finally, the compound integral sliding mode speed controller is established, and the permanent magnet speed regulation high-voltage three-phase asynchronous The signal output by the motor is divided into two channels, which are recorded as: the first signal and the second signal; after the frequency domain anti-interference processing, the first signal and the second signal are respectively inversely Fourier transformed and overlapped. The signal after the overlap processing is the output data after the frequency domain anti-jamming processing; after weighting processing, the anti-jamming processing is completed. The invention improves anti-interference and 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 of a three-phase asynchronous motor with frequency conversion and speed regulation for ships. 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 propo...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P21/00H02P21/13H02P25/02
CPCH02P21/0003H02P21/0007H02P21/13H02P25/02H02P2207/01
Inventor 宋怡肖雪松肖婷婷张晓瑜
Owner 宏洋电机(威海)有限公司
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