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Design and Develop of High Speed Multichannel Synchronous Data Acquisition System Based on DSP

Author: PanYongLiang
Tutor: TianJie
School: Hefei University of Technology
Course: Mechanical and Electronic Engineering
Keywords: data acquisition system relay protection high precision anti-interference
CLC: TP274.2
Type: Master's thesis
Year: 2013
Downloads: 32
Quote: 0
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In this paper, firstly it has described the importance of relay protection and measurement equipment’s data acquisition system in electric power system security field and has dissertated the data acquisition system’s process and history.Overall design of the data acquisition system is confirmed according to system’s function requirements and technical requirements. Hardware design is important segment of the design of the data acquisition system, for hardware design can influence system’s precision. The dissertation introduces high-speed synchronous date sampling circuits’ design which includes instrument transformer’s selection, low pass filter’s design, isolation’s design, extended RAM’s design, A/D converter and DSP interface’s design, data acquisition of switching value’s design and so on.The process of collecting data information in data acquisition system is disturbed seriously in the field of electric system. The dissertation introduces the software development process of the TMS320F2812firstly and then introduced the software design of the data acquisition system. Selecting the CCS as the software development platform, the software system mainly includes the following sections: configure the CMD files, initialize configure system, CPU timer interrupt configuration and so on.This dissertation analyses the common interference, designs the anti-interference measures from the aspect of hardware and software and receives the ultimate sampled data’s amplitude by Fourier Transform. Finally, measured values and error is acquired by the measuring of protection voltage, line voltage, zero sequence voltage, zero sequence current, protection current, measuring voltage, measuring voltage. Measured values and error match the system’s technical requirements according to the experiment.

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Data processing, data processing system > Data collection and processing systems
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