PWM Buck变换器的输入输出精确线性化模型和仿真

Simulation Research on Exact Linearization Model of PWM Buck Converter

应用PWM开关模型建立了适合于大信号分析的PWM Buck变换器连续模态下的非线性数学模型,推导出对应的非线性坐标变换和非线性反馈变换,将原非线性系统变换为一个线性系统。对通过精确线性化方法得到的系统非线性控制策略进行了仿真,具有较好的响应特性。

Based on the PWM switch model, the nonlinear mathematical model for large signal of CCM PWM Buck converter is set up. The nonlinear coordinate change and nonlinear feedback equation are proposed. The nonlinear system is changed to a linear one. The results of simulation research on this system show that the dynamic response performance is effective.