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Controller and control system for permanent-magnetic synchronous motors

A permanent magnet synchronous motor and controller technology, applied in the control system, electronic commutation motor control, electrical components and other directions, can solve the problems of single function of permanent magnet synchronous motor controller, not high enough precision, poor synchronization effect, etc.

Inactive Publication Date: 2015-11-18
CHONGQING ZEQINGJU SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the application of permanent magnet synchronous motor is limited to the occasion of constant frequency and constant speed, which makes the function of the permanent magnet synchronous motor controller relatively single, which can only meet part of the needs of users, and there are problems of insufficient precision and poor synchronization effect

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  • Controller and control system for permanent-magnetic synchronous motors

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Embodiment Construction

[0018] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] Such as figure 1 As shown, the controller of the permanent magnet synchronous motor may include: a voltage collection device 10 , a current collection device 30 , a processor 50 , a drive circuit 70 , a power device 90 , a switching value control device 110 , and a switching power supply device 130 .

[0020] Among them, the voltage collection device 10 is used to collect and process the DC voltage; the current collection device 30 is used to collect and process the AC current output by the motor; the processor 50 is connected to the current collection device and is used to use the reference parameters for comparison processing The comparison result is used to control the AC current to generate a drive signal; the drive cir...

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Abstract

The invention relates to the field of home appliances, and discloses a controller and a control system for permanent-magnetic synchronous motors. A switching control device is connected with a power device through a closing switch and a brake switch and is used to control motor starting and braking. A switching power supply device is connected with a driving circuit and is used to provide electric energy. The problem that the existing permanent-magnetic synchronous motor controller in the related technology has single function and is low in precision is solved. A high-precision and large-range permanent-magnetic synchronous motor controller is realized.

Description

technical field [0001] The invention relates to the field of home appliances, in particular to a controller and system for a permanent magnet synchronous motor. Background technique [0002] Today, when energy is in short supply and energy saving and consumption reduction are concerned all over the world, people have a higher demand for high-efficiency and energy-saving control systems. The continuous improvement of the performance of permanent magnet materials and the continuous decline of prices have made the permanent magnet synchronous motor control system have a larger and wider stage for display. While it has further applications in air-conditioning, ventilation, and water supply systems, it is also striving to enter the automotive industry and firmly occupy a place. The permanent magnet synchronous motor has a small shape and light weight, which is suitable for the limited space of electric vehicles; it has high efficiency and does not require excitation current when...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P6/00
Inventor 常小燕
Owner CHONGQING ZEQINGJU SCI & TECH DEV
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