Energy saving elevator registration assessment, can be similar to the use of household electrical appliances, or AAA, AA, A, B,, C five system. The AC double speed elevator, if for the C class, then the turbine worm VVVF elevator can be B class, permanent magnet synchronous host power than the turbine worm host is small, so the use of permanent magnet synchronous host VVVF elevator can be included in the A level.

To get a lift at the AA level, it must be able to lift billom magnet synchronous motor can save more energy. And get the AAA level of the elevator is the world's most advanced energy-saving technology and application of the elevator products. According to the above situation and the actual use of the elevator, we put forward the following energy-saving elevator rating of the hard target reference

AAA: permanent magnet synchronous machine, VVVF control technology, elevator power generation to achieve the use of 30-35%, does not directly impact the power grid. This kind of elevator energy saving effect is good, no impact on the power grid, is a truly mature third generation energy saving elevator.

AA: permanent magnet synchronous host, VVVF control, use of the elevator power, for example, energy feedback, but energy feedback must be in line with the national grid network conditions, with rectifier and of power to steady wave of string processing technology and grid is not harmful impact of elevator. Feedback energy utilization rate reached 20-25%, the elevator into the third generation of energy-saving elevator industry, but belong to access to the threshold of the third class energy-saving elevator.

A permanent magnet synchronous machine, VVVF control, the lift popularization and application in large area has been around for nearly a decade, and sales are increasing year by year, market share each year are in improving, power consumption province, the environmental protection to better than worm elevator, is now the mainstream products, will also continue to increase the share. This kind of elevator is the second generation energy saving elevator.

B: turbine worm host, VVVF control, the elevator motor power is relatively large, but the exchange of two speed energy saving, but also the first generation of energy-saving elevator technology, but is currently being gradually reduced production. The market also continued to have sales, before the elevator is the mainstream products.

B-C: AC double speed control, turbo worm elevator host, PLC or older control mode, the elevator is mainly the old elevator and cargo elevator.