摘要
在交流电机变频调速中,脉宽调制技术已经得到了广泛的应用。而空间矢量脉宽调制方法与经典的脉宽调制方法相比,具有直流电压利用率高、控制简单、损耗较小、便于数字化方案实现等优点。文中介绍了利用TI公司的DSP电机控制芯片TMS320F2812实现SVPWM的方法。该控制方法速度快、精度高,在电压型逆变器中能产生更少的谐波并减少开关损耗。
The Pulse Width Modulation （PROM） technology has been widely used in AC motor speed regulation.As compared to the classical PWM method, the Space Vector Pulse Width Modulation （SVPWM） method has the advantages in higher DC voltage utilization, simpler control, smaller losses and easier digital program. The basic theory for SVPWM is discussed, and the method for realizing SVPWM by TI＇s DSP chip TMS320F2812 is described. This method has the characteristics of fast speed and high precision, and generates less harmonic component and reduces switching losses in voltage-source-inverter.
出处
《通信技术》
2008年第7期265-267,共3页
Communications Technology
