A variable-frequency alternating-current motor-based transmission system rapid model selection method and device

Abstract

The invention discloses a variable frequency AC motor-based transmission system rapid model selection method and device. The method comprises the following steps: S1, generating a corresponding systemdemand characteristic curve according to demand parameters of a tested transmission system; S2, selecting transmission parameter values of the gear box, and generating a corresponding gear box demandcharacteristic curve; S3, selecting parameters of the test-accompanying motor according to the state of the current gearbox demand characteristic curve; S4, generating an actual output characteristiccurve of the tested transmission system according to the selected parameters of the test accompanying motor; and S5, matching the generated actual output characteristic curve with the system demand characteristic curve, completing type selection of the tested transmission system if the matching is successful, otherwise, adjusting the transmission parameter value of the gearbox, and returning to execute the step S2. According to the invention, rapid model selection of the transmission system based on the variable-frequency alternating-current motor can be realized, and the method has the advantages of simple operation, high precision, high flexibility and the like.

Description

technical field [0001] The invention relates to a transmission system based on an AC motor, in particular to a method and device for quickly selecting a transmission system based on a variable frequency AC motor. Background technique [0002] The key components of the mechanical transmission system based on the variable frequency AC motor include the test motor, the test gearbox, etc. In the early stage of the transmission system design, it is usually necessary to complete the selection of key components such as the test motor and the test gearbox in the system test bench. Type design, so that the transmission system can meet the needs of users. For the design of the transmission system based on the variable frequency AC motor, the parameter selection of the key components such as the test gearbox and the test motor in the transmission system is usually done manually at present, that is, the designer selects the test gearbox according to the design experience. , Accompany t...

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Problems solved by technology

For the design of the transmission system based on the variable frequency AC motor, at present, the parameter selection of the key components such as the test gearbox and the test motor in the transmission system is usually carried out manually, that is, the designer selects the test gearbox according to the design experience. , Accompany the parameters of the key components of the test motor, and then repeatedly adjust the design parameters. After completing the parameter selection each time, manually draw the relevant performance curves, and then manually judge whether the obtained performance curves meet the user's design requirements, so as to realize the test gearbox, The whole process of the type selection of the accompanying test motor is complicated to operate and the efficiency is very low, and the accuracy of the type selection depends on the degree of design experience of the designer, etc. It is difficult to quickly and accurately determine the parameters that meet the user's needs

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