Small and medium-sized three-phase asynchronous motor energy-saving evaluation mode based on numerical simulation

Abstract

The invention discloses a small and medium-sized three-phase asynchronous motor energy-saving evaluation mode based on numerical simulation. The mode comprises the following steps: 1), building a physical model; 2) carrying out mesh generation; 3) setting boundary conditions; 4) selecting a calculation method; 5) carrying out simulation result analysis. The invention belongs to the technical fieldof motor energy-saving evaluation, and particularly provides the small and medium-sized three-phase asynchronous motor energy-saving evaluation mode based on numerical simulation. The small and medium-sized three-phase asynchronous motor energy-saving evaluation mode is used for scoring and evaluating the overall energy efficiency level of a three-phase asynchronous motor in actual operation, andis simple, easy to implement and fine in evaluation.

Description

technical field [0001] The invention belongs to the technical field of motor energy-saving evaluation, and specifically refers to a numerical simulation-based energy-saving evaluation mode for small and medium-sized three-phase asynchronous motors. Background technique [0002] Electric motors can be used to drive various equipment such as fans, pumps, and compressors, and are widely used in many fields such as industry, commerce, agriculture, utilities, and household appliances. The electric motor system includes the electric motor, the driven device, the transmission control system and the pipe network load, and the electricity consumption accounts for about two-thirds of the total electricity consumption of the society. Improving the energy efficiency level of the motor system is of great significance for building a resource-saving and environment-friendly society and promoting sustainable development. [0003] At present, the energy utilization rate of my country's moto...

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Problems solved by technology

[0004] To sum up, the existing national standards, patents, and research literature have made regulations and research on some energy efficiency indicators and their limit values ​​of the motor system, for example, "Energy efficiency limit values ​​and energy efficiency grades of small and medium-sized three-phase asynchronous motors GB18613- 2012 stipulates the energy-saving evaluation value and energy efficiency limit value of three-phase asynchronous motors, but does not propose a comprehensive three-phase asynchronous motor energy efficiency scoring method, and cannot make a score evaluation of the overall energy efficiency level of three-phase asynchronous motors in actual operation, nor can it Detailed evaluation of the energy efficiency level of the electric motor system