鄧鵬毅，王叢嶺
（電子科技大學機電工程學院，四川 成都 610054）
摘要：矢量控制變頻技術是先進的變頻調速技術。異步電機在兩相同步旋轉坐標系下的數學模型表明：可以實現交流感應電機磁場和轉矩的解耦控制。本文提出了使用高性價比嵌入式芯片AVR ATmega8515實現矢量變頻調速系統的實施方法。實驗結果表明：基于AVR的空間矢量變頻調速系統基本達到了預期要求，在實驗負載條件下能夠進行變頻調速，電壓輸出波形符合理論分析，電流輸出為三相對稱正弦波。
關鍵詞：空間矢量脈寬調制（SVPWM）；AVR嵌入式微控器；變頻調速；電壓型逆變器
中圖分類號：TP393.07 文獻標識碼：A 文章編號：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 systemThe 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
