（电子科技大学机电工程学院▄■▓，四川 成都 610054）
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 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