自动扶梯交流曳引主机并列供电电路的设计

Design of the Parallel Power Supply Circuit for Escalator AC Traction Machine

介绍了自动扶梯和自动人行道控制系统中对驱动主机的两种供电方式——直接供电和静态元件供电。并给出了两种供电方式的一次电路。为了便于使用单位根据使用现场情况选择不同的供电方式，或由控制系统对供电方式进行自动切换．提出了并列供电的一次电路，并分析了该电路的特点。

Two kinds of power supply modes including direct power supply and static element supply of the drive machine in control system of escalator and moving walk are introduced, and the primary circuits of two power supply modes are presented. In order to facilitate the use units to choose a different mode of power supply according to site, or by the control system to automatically switch on the power supply mode, a primary circuit of parallel power supply circuit is put forward, and the characteristics of the circuit are analyzed.