| 引用本文： |
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王国金,马殷元,吕凤玉.基于PWM变频调速的PLC电梯控制系统设计[J].广西科学院学报,2012,28(1):59-61. [点击复制]
- WANG Guo-jin,MA Yin-yuan,LV Feng-yu.PLC Elevator Control System Based on PWM Speed Control[J].Journal of Guangxi Academy of Sciences,2012,28(1):59-61. [点击复制]
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| 摘要: |
| 利用光电旋转编码器产生高速脉冲,引入PLC高速计数器端进行计数,利用PWM变频调速,设计电梯控制系统。该系统确定电梯理想运行速度和加速度曲线,实时计算电梯的楼层位置、平层位置、上下换速点,实现电梯的精确定位,实时完成乘客呼梯请求。 |
| 关键词: 脉冲定位 PWM调速 电梯控制系统 电梯运曲线 |
| DOI： |
| 投稿时间：2011-08-23修订日期：2011-10-20 |
| 基金项目: |
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| PLC Elevator Control System Based on PWM Speed Control |
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WANG Guo-jin, MA Yin-yuan, LV Feng-yu
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| (Institute for Mechanical and Electronic Technology, Lanzhou Jiaotong University, Lanzhou, Gansu, 730070, China) |
| Abstract: |
| In this paper, a continuous multi-speed control scheme for elevator is proposed. The precise locating is implemented by counting high frequency pulses which are generated by optical rotary encoder. The continuous multi-speed control is implemented by PWM speed control as well. The ideal speed and acceleration are determined by on-site testing. The floor positions, flat bed positions and speed switching point are calculated manually. The real-time requirement of precise locating and calling response are met in this scheme. |
| Key words: pulse locating PWM speed control elevator control system elevator operating curve |
