The paper analyzed the voltage hysteresis with differentiation elements,and pointed out that the PWM converter with differentiation hysteresis controls can be used as the ideal voltage source.
分析了带微分环节的电压滞环的变环宽的原理,指出带微分滞环控制的脉宽调制(PWM)变换器可作为理想的可控电压源。
The principles of current loop,impedance loop and voltage loop were respectively analysed.
介绍了系统的电流环、电阻环和电压环3个控制环路的工作原理。
The paper proposes a PFC voltage loop simulation model based on system modelling method.
提出了一种基于系统建模法的ＰＦＣ电压环仿真模型。
Three soft start-up technique for voltage loop are compared with each other,which are the reference of DC bus voltage gradually increasing,constant charging current and different PI modulation.
电流环软启动通过输出电流指令递增实现,电压环软启动则比较了直流侧电压指令逐步升高法、恒定电流充电法、变PI参数调节法三种策略。