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THE RESEARCH OF VARIABLE-FREQUENCY ADJUSTING-SPEED SYSTEM AND ITS VISUALIZATION BASED ON DSP

Author: YangYaLing
Tutor: LinZhongYue
School: Guangxi University
Course: Control Theory and Control Engineering
Keywords: VVVF TMS320F240 Remote network control
CLC: TM921.51
Type: Master's thesis
Year: 2002
Downloads: 309
Quote: 6
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Abstract


With the continuous emergence of new power electronic devices and computer technology continues to evolve , the high-performance induction motor drive system has been widely used. Performance AC speed control system , can not be separated from the digital signal processor , the new F24X/C24X series DSP TI company to meet a wide range of digital motor control (DMC) applications , both with a general-purpose DSP fast , and both three-phase AC speed control function . The papers selected on the basis of a detailed demonstration program AC - DC - AC voltage main circuit and digital signal processor TMS320F240 constitutes AC variable speed system . General frequency control system and computer visualization system developed DSP - based frequency control the use of their respective advantages . Several methods from the running time and space in floating point operations on fixed-point DSP , and select the approximate calculation method as a system control algorithm floating point operations , reach under the premise of guaranteeing sufficient computational accuracy calculation fast , high accuracy of the output voltage to achieve low harmonics and frequency control . In addition to general inverter function , visualization software with computer -specific graphics processing , display , access capacity . While the introduction of a remote network control , so the operator can remotely control one or more even distribution of centralized management and control multiple devices in different places , Through comprehensive experimental validation of the system , the experimental results show that the entire system is running well , stable performance , convenient monitoring , to achieve the desired objectives , and the design of the system has a strong scalability , portability , has a high practical value.

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CLC: > Industrial Technology > Electrotechnical > Electrification,electrical energy application > Electric drive ( electric drive ) > Control system > Variable frequency control system
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