摘要
滞环比较跟踪控制方法相比于三角波比较和定时比较跟踪控制方法具有硬件电路结构简单、响应速度快、跟踪精度高、系统鲁棒性好等优点。针对一种新型多电平滞环比较跟踪控制方法,以单相H桥逆变电路三电平跟踪控制为背景,研究了电平阶梯间跳变的控制原理,以及实现电平准确跳变的方法。针对指令信号超出主电路输出范围而出现的掉脉冲现象,分析并给出了解决方案。给出了CPLD编程的原理和方法。最后仿真和实验结果验证了理论分析的正确性。
Hysteretic tracking control method has more advantages than triangle tracking and timing tracking,such as simple hardware,fast response,high tracking accuracy and so on.According to a new multilevel hysteresis comparison tracking control method and based on the single-phase H bridge inverter circuit of three level tracking control as the background,this paper studys the control principle of the level jumping between steps and the mothod to make the level jump accurately.For the pulse-off phenomenon when the command signal beyond the range of hardware circuit can track,the paper gives a detailed description and puts forward the solution.It introduces the principium and programmer method of the CPLD.Finally,the programming,simulation research and experimental research results demonstrate the validity of the theoretical analysis.
出处
《电子测量技术》
2013年第2期1-5,共5页
Electronic Measurement Technology
关键词
滞环跟踪
多电平
电平阶梯跳变
掉脉冲
hysteresis tracking
multi-level
level-step jump
pulse-off
