基于单片机的交流斩波电路浮动电压控制研究

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传统的浮动电压控制方法容易破坏交流斩波电路的稳定性和安全性。为提高对交流斩波电路浮动电压的控制效率,在引入单片机技术的基础上,结合交流斩波电路的工作原理和交流斩波电路的浮动电压灵敏度的分析,构建SHEPWM控制模型,实现基于单片机的交流斩波电路浮动电压控制。实验结果表明,在浮动电压不断增加的环境下,相比于传统的电压控制方法,所设计的控制方法具有更高的控制效率,充分证明了该方法的有效性。

The stability and security of ac chopper are easily damaged by the traditional floating voltage control method.In order to improve the control efficiency of ac chopper circuit floating voltage,based on the introduction of single chip microcomputer technology,combined with the working principle of ac chopper circuit and the analysis of the sensitivity of ac chopper circuit floating voltage,the SHEPWM control model was established to realize the floating voltage control of ac chopper circuit based on single chip microcomputer.The experimental results show that the proposed control method has higher control efficiency than the traditional voltage control method under the circumstance of increasing floating voltage,which fully proves the effectiveness of the proposed control method.