一驱双控永磁变频门机系统的设计与研究

Permanent magnet variable-frequency door system by one driver dual control

针对国内高速电梯市场缺少与其匹配的高端门机的问题,通过对国内外电梯门机控制技术以及永磁同步技术的研究,研发了一款匹配高速梯甚至超高速梯的高端门机系统。采用了数字芯片和智能功率模块作为主电路的门机控制器硬件;采用了空间矢量脉宽调制技术,得到了门机运行曲线及永磁同步电机定位角学习方法,实现了双电机协同工作及单电机切换;描述了总体机械设计方案;通过实验测绘出了门机实际运行曲线并对运行曲线进行了分析。研究结果表明:该门机系统方案设计合理,运行可靠,不仅开关门时间大大缩短,电梯的使用效率明显提升,而且门机运行曲线更佳。

Aiming at solving the shortage of the advanced door system, which is suitable for the high-speed elevator in the domestic market, with the research of the permanent magnet synchronous technology and the door control system in domestically and internationally, it was proposed to develop an advanced door-motor system which was used for the high-speed elevator or the super-high-speed elevator. The digital chip and intelligent power module were used as the main circuit for hardware controller of the door system. The space vector pulse width modulation(SVPWM) were applied to get the door-motor running curve and learning method about the positioning angle of the permanent magnet synchronous motor, the two motors working together and the single motor switching. The concerning system design on mechanism was described. The door system actual running curve could be surveyed and analyzed though the experiments usage significantly. The results indicate that this door system is reliable and meet the original aim. It shorten the time of opening and closing the door, enhance the efficiency of elevator usage, and the running curve is more graceful quieter smoother and safer.