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Single FPGA chip-based driving system for multiple rear-earth permanent-magnet synchronous motors

A rare-earth permanent magnet and synchronous motor technology, applied in the direction of multiple motor speed/torque control, can solve the problems of real-time data reliability decline, synchronization performance degradation, system response lag, etc., to achieve flexible control methods and fast response , Good effect of anti-interference ability

Active Publication Date: 2010-06-16
陕西捷普控制技术有限公司
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

Because it takes time to transmit real-time data between the central control computer and each driver, the response of the system will be delayed and the real-time performance will be reduced.
In addition, the central control and each driver are completely independent devices, which will deteriorate the synchronization performance of the system operation
The driver works in a complex electrical environment, and the reliability of the system to transmit real-time data will also decrease and other defects

Method used

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  • Single FPGA chip-based driving system for multiple rear-earth permanent-magnet synchronous motors
  • Single FPGA chip-based driving system for multiple rear-earth permanent-magnet synchronous motors

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Embodiment Construction

[0025] figure 1 It is a schematic block diagram of the structure of two rare earth permanent magnet synchronous motor drive system embodiments of the present invention.

[0026] Below in conjunction with accompanying drawing, content of the invention will be further described:

[0027] refer to figure 1 As shown, the driving system of two rare earth permanent magnet synchronous motors based on a single FPGA chip integrates a main control unit (1) and two rare earth permanent magnet synchronous motor drive control units (2) on a single FPGA chip.

[0028] The system hardware consists of a single FPGA chip, a power supply part (4), two PWM drive output parts (6), two data acquisition parts, a communication interface part (10), an input and output control and display part (9) and the like.

[0029] The data acquisition part is composed of an id / td current change rate acquisition circuit (5), a power supply isolation measurement circuit (3), a three-phase current measurement cir...

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Abstract

The invention discloses a single FPGA chip-based driving system for multiple rear-earth permanent-magnet synchronous motors. The system adopts the same control core FPGA chip, integrates a main control unit and a plurality of motor driving control units, realizes the associated driving of the plurality of rear-earth permanent-magnet synchronous motors and also integrates a plurality of control models, wherein each unit realizes data sharing and the seamless connection of the shared data in the chip; and each controlled rear-earth permanent-magnet synchronous motor can have a plurality of operational modes. The whole system has the advantages of simple structure, strong real-time, high response speed, good anti-interference capacity, convenient update and the like. The system is widely applied to the industries of electromobile, steamer, industrial automation, national defense and the like.

Description

technical field [0001] The invention relates to a driving system of multiple rare earth permanent magnet synchronous motors based on a single FPGA chip. Background technique [0002] Multi-axis linkage systems are widely used in projects such as electric vehicles, automated production lines, and automated equipment. Common composition patterns are: [0003] Mechanical transmission mode: The power of the main power drive motor is converted by the mechanical mechanism for speed and torque, and the power is transmitted to each drive shaft to realize the differential speed and torque conversion to complete the distribution of power. The disadvantages are that the structure is complex, the function is single, the function expansion is difficult, the range of speed difference and torque conversion is small, and the price and structure complexity increase exponentially with the improvement of system accuracy. [0004] Conventional electronic control mode: The conventional multi-a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P6/04
Inventor 焦耀峰冯超袁海玉
Owner 陕西捷普控制技术有限公司
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