| 基于PWM变频调速的PLC电梯控制系统设计 |
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| 引用本文： | 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 |
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| 作者姓名： | 王国金 马殷元 吕凤玉 |
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| 作者单位： | 兰州交通大学机电技术研究所 |
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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。
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| 关 键 词： | 脉冲定位 PWM调速 电梯控制系统 电梯运曲线 |
| 收稿时间： | 2011-08-23 |
| 修稿时间： | 2011-10-20 |
PLC Elevator Control System Based on PWM Speed Control |
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| WANG Guo-jin,MA Yin-yuan and LV Feng-yu. PLC Elevator Control System Based on PWM Speed Control[J]. Journal of Guangxi Academy of Sciences, 2012, 28(1): 59-61 |
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| Authors: | WANG Guo-jin MA Yin-yuan LV Feng-yu |
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| Affiliation: | (Institute for Mechanical and Electronic Technology,Lanzhou Jiaotong University,Lanzhou,Gansu,730070,China) |
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| 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. |
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| Keywords: | pulse locating PWM speed control elevator control system elevator operating curve |
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