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    9. AVR实现的SVPWM变频调速系统研究

    2006-04-11 《中国测试爱彩网平台怎么下载》杂志社csjs

    邓鹏毅,王丛岭 (电子科技大学机电工程学院,四川 成都 610054)   摘要:矢量控制变频爱彩网平台怎么下载是先进的变频调速爱彩网平台怎么下载。异步电机在两相同步旋转坐标系下的数学模型表明:可以实现交流感应电机磁场和转矩的解耦控制。本文提出了使用高性价比嵌入式芯片AVR ATmega8515实现矢量变频调速系统的实施方法。实验结果表明:基于AVR的空间矢量变频调速系统基本达到了预期要求,在实验负载条件下能够进行变频调速,电压输出波形符合理论分析,电流输出为三相对称正弦波。   关键词:空间矢量脉宽调制(SVPWM);AVR嵌入式微控器;变频调速;电压型逆变器   中图分类号:TP393.07 文献标识码:A 文章编号:1672-4984(2006)02-0033-04   Research of SVPWM-AC motor controller realized with AVR   DENG Peng-yi, WANG Cong-ing (College of Mechanical Electronic,University of Electronic Science and Technology,Chengdu 610054,China)   Abstract: In this paper, variable-frequency-peed-regulation technology was displayed. With many advantages, Space-Vector-Pulse-Width-Modulation(SVPWM) is a better method conlpared with Sinusoidal PWM in field of AC motor speed regulation. Mathematic model in 2-phase-rotation-coordinates with synchronous speed appears and the stator current is synthesized by two components and AC motor can be controlled like a DC machine which torque and field can be adjusted respectively. An inbuilt system based ATmega8515 was investigated and analyzed to realize the SVPWM slid frequency systemThe results of experiments indicated that the scheme of hardwares and softwares were successful and the SVPWM speed-regulation-system could work normally under the given load. The output waves of voltage, currents and speed curve were coincident with the expectable one. Key words:Space-vector PWM;AVR micro-processor;Variable frequency drives;Voltage source inverters


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