| 一种异步电动机SPWM变频调速的新方案 |
| |
| 引用本文： | 刘国光. 一种异步电动机SPWM变频调速的新方案[J]. 机械工程与自动化, 2005, 0(1): 65-67,70 |
| |
| 作者姓名： | 刘国光 |
| |
| 作者单位： | 黄石理工学院,湖北,黄石,435003 |
| |
| 摘 要： | 介绍了一种切线采样方法以产生三相SPWM波，与规则采样法相比，提高了采样精度，但计算的复杂度稍有增加。给出了实现对异步电动机的SPWM调速控制的梯形图。
|
| 关 键 词： | 变频调速 SPWM 规则采样 PLC 异步电动机 |
| 文章编号： | 1672-6413(2005)01-0065-03 |
A New SPWM Method of Asynchronous Motor Based on PLC |
| |
| LIU Guo-guang. A New SPWM Method of Asynchronous Motor Based on PLC[J]. Mechanical Engineering & Automation, 2005, 0(1): 65-67,70 |
| |
| Authors: | LIU Guo-guang |
| |
| Abstract: | This paper introduces a tangent-sampling method to form SPWM waves in an AC speed-regulating system controlled with a computer.Comparing with regular sampling,the method increases sampling precision by little increasing in computational complex. Finally the trapezoid graph to program and produce on-off signals is presents. |
| |
| Keywords: | variable frequency and speed adjusting SPWM regular sampling PLC asynchronous motor |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
