孙得金,洪捷,李武杰.移相全桥电路偏磁补偿的数字实现[J].电气自动化,2016,(1):59~61
移相全桥电路偏磁补偿的数字实现
Digital Realization of Magnetic Biasing Compensation for the Phase-shifted Full-bridge Circuit
  修订日期:2014-04-16
DOI:
中文关键词:  移相全桥电路  偏磁  电流闭环补偿  PI控制器  PWM信号
英文关键词:phase-shifted full-bridge circuit  magnetic biasing  current closed loop compensation  PI controller  PWM signal
基金项目:
作者单位
孙得金 武汉征原电气有限公司,湖北武汉 430012 
洪捷 武汉征原电气有限公司,湖北武汉 430012 
李武杰 华中科技大学自动化学院,湖北武汉 430074 
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中文摘要:
      提出一种有效的电流闭环偏磁补偿方案,通过检测变压器原边电流的峰值来判断移相全桥电路是否发生偏磁现象,并由PI控制器运算得到PWM信号的补偿值,从而达到补偿偏磁的效果,最后通过试验波形验证了补偿方案的可行性。
英文摘要:
      This paper presents an effective scheme for current closed-loop magnetic biasing compensation. By testing the peak value of the primary side current of the transformer, we can judge whether the phase-shifted full-bridge circuit is magnetically biased, and the compensation value of the PWM signal is obtained through PI controller arithmetic, so as to compensate for the magnetic biasing. Finally, the feasibility of the compensation scheme is verified through the experiment waveform.
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