【摘要】 针对传统电机车电阻调速时消耗大量能量的缺点,设计了以DSP为控制核心的直流斩波调速系统,该系统通过调节单相六重BUCK斩波器的占空比完成前级直流变换,采用转速和电流的防积分饱和PI调节,完成斩波器调速的双闭环控制,实验表明该系统具有良好的动静态性能,相对于基本斩波电路具有很强的抗干扰性和实用价值。更多还原

【Abstract】 Aiming to the disadvantage which most energy is depleted in traditional resistance regulated DC motor,a speed regulation system of DC motor based on DSP is proposed.In the system the single-phase six multiplex BUCK chopper is used to realize the former DC conversion by adjusting ratio,rotate speed and current PI regulator preventing integral saturation are introduced to accomplish double-loop control of chopper speed regulation,experiments indicate the system has well dynamic and static characteristic,the high anti-jamming characteristics relative to the basic BUCK circuit and practical merit.更多还原