Permanent magnet synchronous motor control method and system based on fuzzy control, and storage medium

A technology of permanent magnet synchronous motor and fuzzy control, which is applied in the control system, generator control, motor control, etc., and can solve problems such as pressure difference, noise, compressor vibration, etc.
CN110492805AInactive Publication Date: 2019-11-22HANGZHOU ZHOUJU ELECTRONICS TECHNOLOGICAL
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HANGZHOU ZHOUJU ELECTRONICS TECHNOLOGICAL
Publication Date
2019-11-22
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention provides a permanent magnet synchronous motor control method and system based on fuzzy control, and a storage medium. On the basis of a rotating speed loop PI controller, a difference value between the target rotating speed and the estimated rotating speed and a change rate of the difference value are taken as input; the change values of parameters of Kp and Ki of the rotating speedloop PI controller are taken as output; and the control characteristic of the motor is improved by optimizing the rotating speed loop PI controller of the permanent magnet synchronous motor through the fuzzy regulator, so that the rotating speed fluctuation of the compressor caused by load change is effectively reduced, and the effect of reducing the vibration noise of the compressor is further achieved.
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Description

technical field

[0001] The invention relates to the technical field of motor control, in particular to a fuzzy control-based permanent magnet synchronous motor control method, system and storage medium. Background technique

[0002] Due to the advantages of simple structure, small size, high power density, high efficiency, and excellent operating performance, permanent magnet synchronous motors have been widely used in recent years. For example: the field of transportation, the field of home appliances, the driving field of vehicles and ships, and the rotating mechanisms of pumps, compressors, machine tools, high-precision servo systems, etc.

[0003] At present, the permanent magnet synchronous motor drive generally adopts space vector pulse width modulation technology. In this technology, the speed and position information of the rotor needs to be obtained at any time. Due to the structural characteristics of the rolling rotor compressor, it is filled with high-temperature...

Claims

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