Energy consumption characteristic value extraction method for lifting mechanism of crane

Abstract

The invention relates to an energy consumption characteristic value extraction method for a lifting mechanism of a crane. The method comprises the following steps: selecting the characteristic physical quantities, namely, the lifting load, lifting height and lifting speed during lifting of the crane as inputs, selecting a total energy consumption value as an output, and building a multiple regression equation, namely, E=beta0+beta1*1+beta2*2+beta3*3+epsilon; designing a test scheme of different lifting load values changing gradually, a height value and a speed value for testing, and recording an obtained data sample; substituting the obtained data sample into the multiple regression equation, and resolving the multiple regression equation to obtain partial regression coefficients, namely, beta1, beta2 and beta3; analyzing partial regression coefficient values to obtain corresponding energy consumption variation which corresponds to a single physical quantity variation unit value. By adopting the method, the energy utilization of the lifting mechanism of the crane can be analyzed and detected.

Description

technical field [0001] The invention relates to the technical field of energy efficiency testing and evaluation during the operation process of a hoisting mechanism, in particular to a method for extracting characteristic values ​​of energy consumption of a hoisting mechanism of a crane. Background technique [0002] At this stage, for special equipment such as cranes with large energy consumption, the focus is on the consideration of safety and efficiency, and there is a lack of evaluation of energy utilization efficiency. Energy efficiency ratings have been widely used in household appliances such as washing machines and air conditioners. However, there are still some differences in energy consumption testing and grading methods in countries around the world. [0003] Under normal circumstances, the total energy consumption or power is now used to characterize the power consumption of an electrical equipment, and the ratio of useful work to total work can also be used to e...

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Problems solved by technology

In the formulas involved in the method, the choice of the friction factor value is different, which will lead to a large difference in the final energy consumption calculation results

[0007] (3) This test method only calculates the energy consumption from an overall perspective, but there is no corresponding calculation for the energy consumption generated by the decomposed operating physical quantities, and it is impossible to further analyze and compare the energy consumption generated by each process

[0009] Most of the existing methods are mostly to detect the operation status of the whole or part of the crane operation, and lack of energy utilization analysis and data processing methods

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