【摘要】 作为中频电源的重要组成部分，中频电源输出变压器在使用中的一个突出问题是容易出现偏磁饱和，进而影响整个中频电源电能的转换质量，甚至颠覆整个逆变电路。为了对输出变压器偏磁这一现象进行控制，从变压器铁心的脉冲磁化过程入手，深入分析了变压器产生偏磁的最根本原因及其主要因素，并在此基础上利用自适应控制理论提出了输出变压器偏磁的ＤＳＰ软件控制方法。通过仿真实验验证了该方法的可行性与有效性。更多还原

【Abstract】 As an important component of intermediate frequency power source, outpat transformer has a particular problem that the bias magnetization saturation of transformer can influence the converter quality of the inverter power and even destroy the whole inverter cir- cuit. In order to control the phenomenon of bias magnetization, the basic reason and the main factors of the bias magnetizatin are analysed based on the pulse magnetization of the transformer, then the DSP software control method of bias magnetization is proposed using adaptive control theory. The method is proved to be effective by simulation.更多还原