Dsp-based Software Development Of Elevators' Energy Efficiency Measures

Elevator is closely related to the transportation of daily life. With the dramatic increase in the number of lifts, lift energy consumption has caused great social and the close attention of the government functions. A reasonable way to evaluate the lift can lift the energy efficiency for businesses to provide ways to understand for customers to choose energy-saving elevators provide the basis for the government to lift the energy efficiency of the review and supervision of technical support. For promoting development and promotion of energy-saving elevator has important significance.Described in this article developed by our own quality speed based on the difference between the integral method of measuring energy efficiency of lift, the lift is a test method to measure the efficiency of energy use and the elevator based on the measurements of energy use efficiency of appliances.Define a power index overcome the interference of various factors affecting the lift elevator energy efficiency measurement, and safe, convenient and energy efficiency indicators measured lift. Proposes∫ΔMvdt that the speed difference between the calculated integral lift the quality of delivery by the mechanical payload.ΔM is the difference of lift load and 20% rated load. No-load power and load power of 20% difference corresponds to the energy consumed by transportingΔM loads. After the previous two transport loads calculated on the basis of poor quality, different from the rated load to lift the quality of the different percentage of the absolute value as a measure of the mechanical energy of the methods of the lift.High-speed digital signal processor TMS320F2808 as the core processing unit, digital signal processor to 20kHz sampling frequency processing the input voltage and current singal, and the related signal based on finite impulse response band-pass filter algorithm digital filter processing, filter In addition to the lift on-site measurement signal low and high frequency interference, to ensure the accuracy of measured signals. Digital signal processors also achieved according to the collected data, real-time computing lift energy efficiency targets.