一种新型电梯用节能回馈与应急平层供电装置

A New Type of Device for Elevator Energy Feedback and Emergency Levelling Power Supply

提出了一种新型电梯用超级电容器节能与应急平层供电装置。该装置可以将电梯重载下行或是轻载上行时产生的势能转化为电能储存起来．并在电动机处于电动工况时作为辅助电源与市电并行供电。这样既减少了电梯运行所需的电能损耗又降低了电动机工作温度．同时在停电时还能作为应急平层供电装置，驱动轿厢就近平层开门。

A new type of device for elevator for super capacitor energy saving and emergency levelling power supply is introduced. The device can convert the potential energy into electrical energy storage when elevator lifts heavy down or light up. The elctrical energy can be stored and in the motor in electric mode can act as the auxiliary power supply. This will not only reduce the energy loss of elevator running but also lower motor temperature. At the same time, when the power failure, the device can be used in emergency levelling power supply, driving the car near the floor door.