优化开关模式在高频SVPWM逆变器中的应用

Applications of Optimal Switching Patterns in a High-Frequency Inverter using Space Vector Puls-Width Modulation (SVPWM)

针对数字化高频SVPWM逆变器的特殊要求,提出了两种适用于高频SVPWM算法的优化开关模式,分别采用纯软件方法和软件结合DSP内部空间矢量PWM集成硬件的混合方法,应用于一高频SVPWM逆变器样机。该样机采用TMS320LF2407A构成的最小控制系统,可输出0～1kHz连续可调的三相交流电。

To meet the special requirements of the digital high frequence SVPWM algorithm, the authors propose two kinds of optimal SVPWM switching patterns, in which a pure software and a hybrid method of software in combination with hardware integrated in DSP are used separately. A 0～1 kHz AC variable frequency SVPWM inverter based on TMS320LF2407A using these techniques was made.