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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.

Inactive Publication Date: 2019-11-22
HANGZHOU ZHOUJU ELECTRONICS TECHNOLOGICAL
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  • Claims
  • Application Information

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Problems solved by technology

[0004] For the rolling rotor compressor without a position sensor, due to the pressure difference between the suction side and the compressor side of the rolling rotor compressor during operation, the load of the rolling rotor compressor will change periodically every time it rotates, which will lead to The compressor speed inevitably fluctuates periodically, which causes problems such as vibration and noise during the operation of the compressor

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

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Embodiment Construction

[0059] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0060] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.

[0061] figure 2 A flow chart of a method for controlling a permanent magnet synchronous motor based on fuzzy control in the present invention is shown.

[0062] Such as figure 2 As shown, the fi...

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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.

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P21/00H02P21/05H02P21/18H02P21/24H02P25/022
CPCH02P21/0003H02P21/001H02P21/05H02P21/18H02P21/24H02P25/022H02P2205/07H02P2207/05
Inventor 齐冀龙杨阳徐世文
Owner HANGZHOU ZHOUJU ELECTRONICS TECHNOLOGICAL
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