After introducing switch function concepts, the nonlinear mathematical model of in - duction motor variable frequency variable speed system fed by space vector pulse width modulated ( SVPWM ) inverter is set up, allowing for the effect of main magnetic circuit saturation. 引入开关函数概念,建立了空间矢量脉宽调制(SVPWM)逆变器供电下,异步电动机考虑主磁路饱和时的变频调速系统非线性数学模型、仿真系统的动态性能。
Pulse width modulated ( PWM ) inverter can generate common-mode voltage, which can produce charge-discharge current at the distant of every insulated gate bipolar transistor ( IGBT ) high-speed switching. pWM逆变器在应用中会产生共模电压,共模电压在IGBT的高速开关期间产生充放电电流。
Aimed at the characteristics of the load, a phase - shifted pulse width modulated ( PS-PWM ) series resonant inverter is developed for the plastic film surface treatment, and the tracing of load resonant frequency is realized with a close-loop control. 针对负载这一特点,研制一台基于移相脉冲宽度调制(PS-PWM)控制的塑料薄膜表面处理电源,实现对负载谐振频率的闭环跟踪。
Design of Phase-shifted Pulse Width Modulated ( PS-PWM ) Controlled Series Resonant Inverter for Plastic Film Surface Treatment 基于移相脉冲宽度调制控制的串联谐振式塑料薄膜表面处理电源的研制