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Real-time measure system for motor driver

A real-time measurement and drive technology, applied in signal transmission systems, electrical signal transmission systems, instruments, etc., can solve the problems of data loss of real-time and time delay

Active Publication Date: 2009-03-11
DELTA ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this motor driver measurement system, a motor driver 11 is connected to a motor device 21, and the output data of the motor driver 11 is connected to a computer device 41 by means of a serial communication port (RS232) 31, and is sent by the computer device 41. A trigger signal is given to the motor driver 11, and the program in the motor driver 11 starts to grab the data, and stores it in a temporary storage 51. When the temporary storage 51 is full, the computer device 41 sends a check command, and starts The motor driver 11 sends back the data, because the speed of the serial communication port 31 is 115200bit / s, and the data needs to be stored in the temporary memory 51 first, so the time of returning will be delayed (delay), so that all The measured data loses its real-time effect

Method used

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  • Real-time measure system for motor driver
  • Real-time measure system for motor driver
  • Real-time measure system for motor driver

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Embodiment Construction

[0029] Please refer to FIG. 3 , which is a real-time measurement system for a motor driver of the present invention, including a digital signal processor (Digital Signal Processor: DSP) 200 and an interface circuit 300 , a conversion device 400 and a terminal processing device 500 .

[0030] Among them, there is a motor driver 100 that is measured in real time. The motor driver 100 is an AC motor driver that controls a motor device 150 in a sine wave pulse width modulation (Pulse Width Modulation: PWM) manner. The motor driver 100 has multiple function keys on it. (not shown), and a display (not shown), can provide the user to set the operating frequency of the motor device 150, display the actual output frequency of the motor device 150, the actual output current of the motor device 150, and the user-defined unit parameters Browse, modify settings, lock parameters, display abnormal faults, and perform functions such as running, stopping, resetting, forward running, reverse run...

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Abstract

The related system comprises a DSP to digitalize the motor running data and output measured data, a connected interface circuit to receive DSP data, a connected conversion device to convert the first signal into the second signal for the second communication port, and a terminal processor to analyze, process and display the measured data for real-time and continual measurement.

Description

technical field [0001] The invention relates to a real-time measurement system, which is applied to measure the operation data of a motor drive, in particular to a real-time measurement system of a motor drive. Background technique [0002] In recent years, countries around the world have invested a lot of manpower, material resources, time and money in the research of motors, hoping to improve the level of industrial technology and make them widely used in automation industry, semiconductor manufacturing process, machine tools, handling, etc. The control of the motor will be limited by the switching speed of the power electronic components in the motor driver and the computing speed of the computer microprocessor, and it is impossible to make a breakthrough in the control of the entire system, so it encounters a technical bottleneck. Until the last ten years, the rapid development of the semiconductor industry and the breakthrough of power electronics in high power have mad...

Claims

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Application Information

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IPC IPC(8): G08C19/00
Inventor 吴家明
Owner DELTA ELECTRONICS INC