电压-电压SPWM控制DC/AC电路的研究

Research on a novel DC/AC converter using double-voltage controlled SPWM

当直流供电电源电压大范围波动时,电压控制SPWM逆变电路的输出电压有幅值波动大、谐波分量大、动态响应较慢等缺点。提出一种能够适应输入电压大范围波动的新型电压-电压SPWM控制策略,并将其应用于实际系统,取得了较好的效果。

When the input voltage of DC power supply change randomly, the output voltage controlled by double-voltage SPWM will change too, and the dynamic response is slow. The harmonic amplitude of the output voltage is higher. The double-voltage SPWM controlled DC/AC converter adapted to the change of the DC power supply is presented and is applied in the practical inverter with satisfactory results.