【摘要】 介绍了中频发电机用单相逆变电源的工作原理。设计了一种全数字式、低成本、较高精度的逆变电源,在双极性正弦脉冲宽度调剂SPWM控制部分采用数字信号处理器DSP来实现硬件电路和软件算法。实验结果表明,该设计方案能够将中频发电机三相中频电压变换成单相工频电压,并确保输出电压稳定,达到良好效果。更多还原

【Abstract】 Introduction was made to the working principle of invertible single-phase power supply used for medium frequency generators. A fully digital type, low cost and higher accuracy invertible power supply was designed. For the dual polarity sine pulse width modulation (SPWM) control part, the digital signal processor (DSP) was adopted to realize the hardware circuit and software algorithm. Experimental results show that the design plan can transfer three-phase medium voltages of medium frequency generators into single-phase power-frequency voltages and ensure output voltages stable, to achieve good effect.更多还原