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,这种方法通过软件实现且不需要任何硬件。结合TMS320F2812 DSP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-zone effect of the voltage-source 3-phase inverter in the vector control system of induction motor, a dead-zone compensation method to judge current polarity based on the sector of current vector was proposed by combining with space vector figure. This method can be implemented by software without any extra hardware. The results of experiment based on TMS320F2812 DSP chip demonstrate the effectiveness of this method in vector control system of 3.3kW induction motor.
出处
《防爆电机》
2011年第4期30-33,共4页
Explosion-proof Electric Machine
关键词
死区
扇区
补偿
Dead-zone
sector
compensation
