摘要
针对异步电动机矢量控制系统中电压型三相逆变器的死区效应,结合空间矢量图,提出了一种根据电流矢量所在的扇区判断电流极性的死区补偿方法,该方法通过软件实现且不需要任何硬件。结合TMS320F2812DSP芯片实现补偿算法,并在3.3kW异步电机矢量控制系统中验证了该算法的有效性。
Aimed at the dead-time effect of the voltage-source 3-phase inverter in the vector control system of asynchronous motor,a dead-time compensation method detecting the sector where the current vector locates was proposed in a space vector figure and it can be implemented by software without any extra hardware. The results of experiment based on TMS320F2812 DSP chip demonstrate the validity of this method in 3. 3 kW vector controlled asyn- chronous motor drive system.
出处
《电机与控制应用》
北大核心
2010年第11期32-35,共4页
Electric machines & control application
关键词
死区补偿
扇区
异步电机
dead-time compensation
sector
asynchronous motor
